Progress® Telerik® UI for Blazor Feedback Portal

Duplicated

Last Updated: 17 Mar 2020 18:43 by ADMIN

Width of control fixed to 300px does not respect Bootstrap style

Created by: Nicola

Comments: 3

Category: UI for Blazor

Type: Bug Report

Width of control fixed to 300px does not respect Bootstrap style

Hi,

the Blazor form controls like DropDownList & ComboBox have a fixed width of 300px (why ???).

This does not respect the Boostrap 4 style guidelines and in a <form> looks like:

where the "Currency" field is a standard <select> and "Model Reader Engine" is a <TelerikDropDownList>.

If I try to set the "Width" attribute of the DropDownList to "100%" the result is:

but if I try to open the DropDown the element list is large as the entire screen:

Have you planned a fix for this ?

Thanks in advance

Completed

Last Updated: 19 May 2020 16:15 by ADMIN

Release 2.14.0

Bug with grid EditorTemplate

Created by: Kostas

Comments: 1

Category: UI for Blazor

Type: Bug Report

Bug with grid EditorTemplate

Based on the example used in this page (https://docs.telerik.com/blazor-ui/components/grid/editing/incell)

i tried to use a component of my own composed by teleriks components in the editor template

@page "/fetchdata"
@using Microsoft.AspNetCore.Authorization
@using Microsoft.AspNetCore.Components.WebAssembly.Authentication
@inject IAccessTokenProvider AuthenticationService
@inject NavigationManager Navigation
@inject WeatherForecastDataSource WeatherForecastDataSource
@using Olympus.Artemis.Shared
@attribute [Authorize]

<h1>Weather forecast</h1>

<p>This component demonstrates fetching data from the server.</p>


<table class="table">
    <thead>
        <tr>
            <th>Date</th>
            <th>Temp. (C)</th>
            <th>Temp. (F)</th>
            <th>Summary</th>
        </tr>
    </thead>
    <tbody>
        <TelerikGrid Data="_data" Height="400px"  
                     Pageable="true" Sortable="true" Groupable="true" EditMode="@GridEditMode.Incell" Navigable="true"
                     FilterMode="Telerik.Blazor.GridFilterMode.FilterRow" @ref="_grid"
                     Resizable="true" Reorderable="true">
            <GridColumns>
                <GridColumn Field=@nameof(TestItem.WeatherForecastID) Title="Position" Width="200px">
                    <Template Context="item">
                        @{

                            var value = ((TestItem)item).WeatherForecastID;
                            var text = data.Where(x => x.ID == value).Select(x => x.Date).FirstOrDefault();

                        }
                        @text
                    </Template>
                    <EditorTemplate>
                        @{
                            currentItem = context as TestItem;
                            <Test2 OnChange="@onChange" DataSource="@this.WeatherForecastDataSource" Value="@currentItem.WeatherForecastID"></Test2>
 
                        }
                    </EditorTemplate>
                </GridColumn>
            </GridColumns>
        </TelerikGrid>


       
    </tbody>

</table>


@code {   
    protected async Task onChange(object o) {
        currentItem.WeatherForecastID =(Guid) o;
        Console.WriteLine("wrwerwe"+currentItem.WeatherForecastID);
        await CloseEditor(currentItem);
    }
    protected async override Task OnParametersSetAsync()
    {
        data =await WeatherForecastDataSource.GetDataAsync();

        await base.OnParametersSetAsync();
    }
    public List<WeatherForecast> data = new List<WeatherForecast>();
    public TestItem currentItem { get; set; }
    TelerikGrid<TestItem> _grid;
    DateTime selectedValue { get; set; } = DateTime.Now;
    private List<TestItem> _data = new List<TestItem>()
    {
            new TestItem { MyDate = DateTime.Today, DateName = "Σημερα" ,WeatherForecastID= new Guid("be4f3a98-5fd3-4972-bc49-1c442cdf87dd") ,ID=Guid.NewGuid()},
            new TestItem { MyDate =DateTime.Today.AddDays(1), DateName = "Αύριο",WeatherForecastID=new Guid("7fac0c25-653b-4606-afef-19f6e27fc57a"),ID=Guid.NewGuid() },
            new TestItem { MyDate =DateTime.Today.AddDays(2), DateName = "Μεθαύριο" ,WeatherForecastID= new Guid("48eb0a12-5971-479a-852d-6383f30e14cb"),ID=Guid.NewGuid()},
            new TestItem { MyDate =DateTime.Today.AddDays(3), DateName = "Αντιμεθαύριο" ,WeatherForecastID= new Guid("113bde91-b0b9-45e0-9d4b-5b280650e042"),ID=Guid.NewGuid()}
    };


    public class TestItem:Olympus.Artemis.Shared.InfoEntities.BaseInfo {
        public Guid WeatherForecastID { get; set; }
        public DateTime MyDate { get; set; }
        public string DateName { get; set; }
        public override bool Equals(object obj)
        {
            if (obj != null && obj is TestItem)
            {
                TestItem curr = obj as TestItem;
                return (ID == curr.ID) && (WeatherForecastID == curr.WeatherForecastID) && (MyDate == curr.MyDate) && (DateName == curr.DateName);
            }
            return false;
        }
    }
    public async Task CloseEditor(TestItem currentItem)
    {
        var state = _grid?.GetState();

        if (currentItem.ID == null && state.InsertedItem != null)
        {
            // insert operation - the item is new
            await CreateHandler(new GridCommandEventArgs()
            {
                Item = state.InsertedItem
            });
        }
        else
        if (currentItem.ID != null && state.EditItem != null)
        {
            Console.WriteLine($"field c {state.EditField}  {typeof(TestItem).GetProperty(state.EditField).GetValue(currentItem)}");
            Console.WriteLine($"field e {state.EditField}  {typeof(TestItem).GetProperty(state.EditField).GetValue(state.EditItem)}");

            // edit operation on an existing item
            await UpdateHandler(new GridCommandEventArgs()
            {
                Item = state.EditItem,
                Field = state.EditField
            });
        }

        state.InsertedItem = state.OriginalEditItem = state.EditItem = default;
        StateHasChanged();
        await Task.Delay(200); // let the grid re-render and close the cell if keyboard navigation is enabled

        await _grid?.SetState(state);
    }
    async Task UpdateHandler(GridCommandEventArgs args)
    {

        string fieldName = args.Field;
        object newVal = args.Value; // you can cast this, if necessary, according to your model
        Console.WriteLine(fieldName);

        TestItem item = (TestItem)args.Item; // you can also use the entire model
        Console.WriteLine(item.ID);

        // perform actual data source operation here through your service

        // if the grid Data is not tied to the service, you may need to update the local view data too
        var index = _data.FindIndex(i => i.ID == item.ID);
        if (index != -1)
        {
            if (!_data[index].Equals(item))
            {
                _data[index] = item;
                Console.WriteLine("Update event is fired for " + args.Field + typeof(TestItem).GetProperty(args.Field).GetValue(item));
                // this copies the entire item, consider altering only the needed field
            }
        }

    }
    async Task CreateHandler(GridCommandEventArgs args)
    {
        TestItem item = (TestItem)args.Item;

        item.ID = Guid.NewGuid();
        _data.Insert(0, item);

        Console.WriteLine("create");
        // perform actual data source operation here through your service
    }


}

The test2 component created by me is this one It only includes a telerikdropdown

@using Olympus.Artemis.Shared
<TelerikComboBox Data="@Items" Value="@Value" ValueField="ID" OnChange="@OnChange" TextField="Date">

</TelerikComboBox>
@code {


    [Parameter]
    public EventCallback<Object> OnChange { get; set; }

 

    [Parameter]
    public Guid Value { get; set; }

    [Parameter]

    public DataSource<WeatherForecast> DataSource { get; set; }

    private IEnumerable<WeatherForecast> Items { get; set; } = new List<WeatherForecast>();
    protected async override Task OnInitializedAsync()
    {
        Items = await DataSource.GetDataAsync();

        await base.OnInitializedAsync();
    }


}

But when i try to select something from the dropdown list the grid cel does not close gracefully

I get this error (the problem is when it executed the line await _grid?.SetState(state);)

blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Unhandled exception rendering component: Unknown edit type: 0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Error: Unknown edit type: 0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.applyEdits (https://localhost:44310/_framework/blazor.webassembly.js:1:15000)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.updateComponent (https://localhost:44310/_framework/blazor.webassembly.js:1:12872)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.t.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:1704)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.window.Blazor._internal.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:34679)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at _mono_wasm_invoke_js_unmarshalled (https://localhost:44310/_framework/wasm/dotnet.3.2.0-preview5.20216.1.js:1:166495)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at wasm_invoke_iiiiii (wasm-function[3166]:0x9d336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at icall_trampoline_dispatch (wasm-function[5782]:0x1006fa)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at mono_wasm_interp_to_native_trampoline (wasm-function[4612]:0xcc80e)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at ves_pinvoke_method (wasm-function[3215]:0x9ed39)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at interp_exec_method (wasm-function[1126]:0x25a67)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Microsoft.JSInterop.JSException: Unknown edit type: 0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Error: Unknown edit type: 0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.applyEdits (https://localhost:44310/_framework/blazor.webassembly.js:1:15000)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.updateComponent (https://localhost:44310/_framework/blazor.webassembly.js:1:12872)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.t.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:1704)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.window.Blazor._internal.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:34679)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at _mono_wasm_invoke_js_unmarshalled (https://localhost:44310/_framework/wasm/dotnet.3.2.0-preview5.20216.1.js:1:166495)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at wasm_invoke_iiiiii (wasm-function[3166]:0x9d336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at icall_trampoline_dispatch (wasm-function[5782]:0x1006fa)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at mono_wasm_interp_to_native_trampoline (wasm-function[4612]:0xcc80e)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at ves_pinvoke_method (wasm-function[3215]:0x9ed39)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at interp_exec_method (wasm-function[1126]:0x25a67)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[T0,T1,T2,TResult] (System.String identifier, T0 arg0, T1 arg1, T2 arg2) <0x3038030 + 0x00046> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[T0,T1,TResult] (System.String identifier, T0 arg0, T1 arg1) <0x3037f50 + 0x00014> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer.UpdateDisplayAsync (Microsoft.AspNetCore.Components.RenderTree.RenderBatch& batch) <0x3037e58 + 0x0001e> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue () <0x2de1a68 + 0x000f2> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Unhandled exception rendering component: Cannot read property 'parentNode' of undefined
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 TypeError: Cannot read property 'parentNode' of undefined
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.e [as removeLogicalChild] (https://localhost:44310/_framework/blazor.webassembly.js:1:6927)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.applyEdits (https://localhost:44310/_framework/blazor.webassembly.js:1:13641)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.updateComponent (https://localhost:44310/_framework/blazor.webassembly.js:1:12872)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.t.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:1704)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.window.Blazor._internal.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:34679)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at _mono_wasm_invoke_js_unmarshalled (https://localhost:44310/_framework/wasm/dotnet.3.2.0-preview5.20216.1.js:1:166495)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at wasm_invoke_iiiiii (wasm-function[3166]:0x9d336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at icall_trampoline_dispatch (wasm-function[5782]:0x1006fa)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at mono_wasm_interp_to_native_trampoline (wasm-function[4612]:0xcc80e)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at ves_pinvoke_method (wasm-function[3215]:0x9ed39)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Microsoft.JSInterop.JSException: Cannot read property 'parentNode' of undefined
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 TypeError: Cannot read property 'parentNode' of undefined
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.e [as removeLogicalChild] (https://localhost:44310/_framework/blazor.webassembly.js:1:6927)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.applyEdits (https://localhost:44310/_framework/blazor.webassembly.js:1:13641)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.updateComponent (https://localhost:44310/_framework/blazor.webassembly.js:1:12872)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.t.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:1704)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.window.Blazor._internal.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:34679)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at _mono_wasm_invoke_js_unmarshalled (https://localhost:44310/_framework/wasm/dotnet.3.2.0-preview5.20216.1.js:1:166495)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at wasm_invoke_iiiiii (wasm-function[3166]:0x9d336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at icall_trampoline_dispatch (wasm-function[5782]:0x1006fa)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at mono_wasm_interp_to_native_trampoline (wasm-function[4612]:0xcc80e)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at ves_pinvoke_method (wasm-function[3215]:0x9ed39)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[T0,T1,T2,TResult] (System.String identifier, T0 arg0, T1 arg1, T2 arg2) <0x3038030 + 0x00046> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[T0,T1,TResult] (System.String identifier, T0 arg0, T1 arg1) <0x3037f50 + 0x00014> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer.UpdateDisplayAsync (Microsoft.AspNetCore.Components.RenderTree.RenderBatch& batch) <0x3037e58 + 0x0001e> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue () <0x2de1a68 + 0x000f2> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Unhandled exception rendering component: No element is currently associated with component 96
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Error: No element is currently associated with component 96
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.updateComponent (https://localhost:44310/_framework/blazor.webassembly.js:1:12336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.t.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:1704)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.window.Blazor._internal.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:34679)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at _mono_wasm_invoke_js_unmarshalled (https://localhost:44310/_framework/wasm/dotnet.3.2.0-preview5.20216.1.js:1:166495)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at wasm_invoke_iiiiii (wasm-function[3166]:0x9d336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at icall_trampoline_dispatch (wasm-function[5782]:0x1006fa)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at mono_wasm_interp_to_native_trampoline (wasm-function[4612]:0xcc80e)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at ves_pinvoke_method (wasm-function[3215]:0x9ed39)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at interp_exec_method (wasm-function[1126]:0x25a67)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at interp_runtime_invoke (wasm-function[5660]:0xf937a)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Microsoft.JSInterop.JSException: No element is currently associated with component 96
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 Error: No element is currently associated with component 96
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at e.updateComponent (https://localhost:44310/_framework/blazor.webassembly.js:1:12336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.t.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:1704)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Object.window.Blazor._internal.renderBatch (https://localhost:44310/_framework/blazor.webassembly.js:1:34679)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at _mono_wasm_invoke_js_unmarshalled (https://localhost:44310/_framework/wasm/dotnet.3.2.0-preview5.20216.1.js:1:166495)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at wasm_invoke_iiiiii (wasm-function[3166]:0x9d336)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at icall_trampoline_dispatch (wasm-function[5782]:0x1006fa)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at mono_wasm_interp_to_native_trampoline (wasm-function[4612]:0xcc80e)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at ves_pinvoke_method (wasm-function[3215]:0x9ed39)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at interp_exec_method (wasm-function[1126]:0x25a67)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at interp_runtime_invoke (wasm-function[5660]:0xf937a)
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[T0,T1,T2,TResult] (System.String identifier, T0 arg0, T1 arg1, T2 arg2) <0x3038030 + 0x00046> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.JSInterop.WebAssembly.WebAssemblyJSRuntime.InvokeUnmarshalled[T0,T1,TResult] (System.String identifier, T0 arg0, T1 arg1) <0x3037f50 + 0x00014> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer.UpdateDisplayAsync (Microsoft.AspNetCore.Components.RenderTree.RenderBatch& batch) <0x3037e58 + 0x0001e> in <filename unknown>:0
p.printErr @ blazor.webassembly.js:1
blazor.webassembly.js:1 at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue () <0x2de1a68 + 0x000f2> in <filename unknown>:0

The test control is a simplified version of a more complex control i was trying to create (mutlicolumn combobox)

If I instead use the telerikdropdown in editortemplate everything works ok

Duplicated

Last Updated: 25 Jun 2020 15:34 by ADMIN

Add a Color Picker component

Created by: khashayar

Comments: 0

Category: UI for Blazor

Type: Feature Request

Add a Color Picker component

I would like to use a Color Picker component.

Unplanned

Last Updated: 13 Aug 2020 13:49 by ADMIN

RadPanorama (TileList) in UI for Blazor

Created by: JeffSM

Comments: 1

Category: UI for Blazor

Type: Feature Request

RadPanorama (TileList) in UI for Blazor

Having a component that is an equivalent of the RadPanorama (https://docs.telerik.com/devtools/winforms/controls/panorama/overview) would be nice to have in UI for Blazor.

Duplicated

Last Updated: 28 Aug 2020 09:20 by ADMIN

Add Filter Component

Created by: Sanaz

Comments: 0

Category: UI for Blazor

Type: Feature Request

Add Filter Component

I would like to have a Filter component like the one in the AJAX suite.

Duplicated

Last Updated: 31 Aug 2020 12:08 by ADMIN

Cannot process pending renders after the renderer has been disposed. Object name: 'Renderer'.

Created by: Mr Chas

Comments: 3

Category: UI for Blazor

Type: Bug Report

Cannot process pending renders after the renderer has been disposed. Object name: 'Renderer'.

Just wondering if there has been any movement on this issue. We are seeing this in our production system application insights logs. Thanks!

System.ObjectDisposedException: at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessPendingRender (Microsoft.AspNetCore.Components, Version=3.1.7.0, Culture=neutral, PublicKeyToken=adb9793829ddae60) at Microsoft.AspNetCore.Components.Server.Circuits.RemoteRenderer.ProcessPendingRender (Microsoft.AspNetCore.Components.Server, Version=3.1.6.0, Culture=neutral, PublicKeyToken=adb9793829ddae60) at Microsoft.AspNetCore.Components.RenderTree.Renderer.AddToRenderQueue (Microsoft.AspNetCore.Components, Version=3.1.7.0, Culture=neutral, PublicKeyToken=adb9793829ddae60) at Microsoft.AspNetCore.Components.ComponentBase.StateHasChanged (Microsoft.AspNetCore.Components, Version=3.1.7.0, Culture=neutral, PublicKeyToken=adb9793829ddae60) at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContextDispatcher.InvokeAsync (Microsoft.AspNetCore.Components, Version=3.1.7.0, Culture=neutral, PublicKeyToken=adb9793829ddae60) at Telerik.Blazor.Components.RootComponent.TelerikFragmentContainer.Refresh (Telerik.Blazor, Version=2.16.0.0, Culture=neutral, PublicKeyToken=20b4b0547069c4f8) at Telerik.Blazor.Components.RootComponent.TelerikRootComponentFragment.Dispose (Telerik.Blazor, Version=2.16.0.0, Culture=neutral, PublicKeyToken=20b4b0547069c4f8) at Microsoft.AspNetCore.Components.Rendering.ComponentState.Dispose (Microsoft.AspNetCore.Components, Version=3.1.7.0, Culture=neutral, PublicKeyToken=adb9793829ddae60) at Microsoft.AspNetCore.Components.RenderTree.Renderer.Dispose (Microsoft.AspNetCore.Components, Version=3.1.7.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)

https://feedback.telerik.com/blazor/1446870-window-throws-cannot-process-pending-renders-after-the-renderer-has-been-disposed-when-the-user-closes-the-page

Completed

Last Updated: 21 Dec 2020 09:00 by ADMIN

Release 2.21.0

Numeric Text box value disappears when focusing after clearing its value, disabling it and enabling it again

Created by: Avromi

Comments: 1

Category: UI for Blazor

Type: Bug Report

Numeric Text box value disappears when focusing after clearing its value, disabling it and enabling it again

I have a numeric text box that is bound to a nullable int. There is also a combo box on the page that will auto set the value and disable the numeric text box if certain values are selected. as follows:

<TelerikComboBox Data="@TareTypes" 
                                     TextField="Name" ValueField="Id"
                                     ValueExpression="@(() => Material.TareTypeId)"
                                     ValueChanged="@((int? e) => TareTypeChanged(e))"
                                     Width="200px"
                                     Placeholder="Tare Type" ClearButton="true"></TelerikComboBox>
<TelerikNumericTextBox @bind-Value="@Material.TareWeight" Arrows="false" Enabled="@tareWeightEnabled" ></TelerikNumericTextBox>

and the code...

private void TareTypeChanged(int? tareTypeId)
        {
            Material.TareTypeId = tareTypeId;
            tareWeightEnabled = true;
            if (tareTypeId > 0)
            {
                var tareTypeWeight = TareTypes.Single(t => t.Id == tareTypeId).Weight;
                if (tareTypeWeight.HasValue)
                {
                    Material.TareWeight = tareTypeWeight;
                    tareWeightEnabled = false;
                    editContext.NotifyFieldChanged(editContext.Field("TareWeight"));
                }
            }
        }

the following steps should reproduce the problem

enter a value in the numeric text box and then clear it out
select a value from the combo box that auto sets the numeric text box value and disables it
select a value from the combo box that re-enables the text box. At this point the value is still visible in the text box (as it should be) and the text box is enabled
Focus in the text box. this causes the number to disappear. it's as if the number was just a place holder which clears out when you focus on the control.

Completed

Last Updated: 23 Aug 2023 14:28 by ADMIN

Release 4.5.0 (08/30/2023) (R3 PI2)

Blazor version of DropDownButton (available in UI for WPF)

Created by: Steve

Comments: 2

Category: UI for Blazor

Type: Feature Request

Blazor version of DropDownButton (available in UI for WPF)

Do you plan to develop a DropDownButton component for Blazor with functionality found in the UI for WPF DropDownButton

Duplicated

Last Updated: 29 Oct 2020 08:24 by ADMIN

Multiline edit and save all on grid edit

Created by: Philip

Comments: 1

Category: UI for Blazor

Type: Feature Request

Multiline edit and save all on grid edit

As we are porting many of our applications from Telerik MVC to Blazor, our clients are complaining about particular features no longer being available.

One of which is the multiline edit for incell edit that is available in Telerik-MVC.

This feature is nice as it allows the grid to have a very "excel - like" feel to it, with a small triangle in the corner to indicate the cell/view-model has been edited.

As is, the user is forced to edit the data line-by-line, and save per line.

In real client work, data is not necessarily modified in this linear/per-row fashion.

Take for example, a client has a list of delivery dates which need to be updated down 1 column, current functionality is painful, as you need to edit 1 date, click save, then move onto the next row instead of just moving down the rows and clicking save after you have finished your edits (like you can with Telerik MVC grid).

My rationale for this feature add: The "big data" age is upon us - and blazor is very well suited for these types of applications being strongly typed/c# etc; would be great to see Telerik lead in rich data input components for data heavy applications, and the grid is the most core UI component hence should be the most feature rich and performant.

Unplanned

Last Updated: 05 Nov 2020 13:41 by ADMIN

Add FilterDescriptor constructor that can also take the MemberType

Created by: Aleksandr

Comments: 0

Category: UI for Blazor

Type: Feature Request

Add FilterDescriptor constructor that can also take the MemberType

Creating custom filter descriptors requires setting the MemberType to match the type of the field they will work with. This should be something we can do through a constructor too, not just by setting the property after creating the instance.

Duplicated

Last Updated: 21 Dec 2020 11:48 by ADMIN

Diagram blazor component

Created by: Raffaele

Comments: 1

Category: UI for Blazor

Type: Feature Request

Diagram blazor component

When implement diagram component for blazor ui?

Duplicated

Last Updated: 10 Aug 2021 10:13 by René

DateInput

Created by: Philip

Comments: 5

Category: UI for Blazor

Type: Bug Report

DateInput

Hello

I have just received some feedback from a client re. the DateInput -Blazor control whereby they are describing the default behaviour as "strange" - and on having a closer look I tend to agree / believe there to be bugs with this.

Please see video and below notes - let me know if there are any workarounds to these things.
I do see there is an existing bug report which may partially cover these issues (DatePicker loses focus when used as data editor in the Grid and the input date starts with 0 (telerik.com)) , however, it seems this is "unplanned" ?

QA Telerik DateInput:

Try entering in M = 1 then 1 SLOW = works ok
Try entering in M = 1 then 1 FAST = focus moves to the end of the date
Try entering 0 in the month or day = Whole date disappears
(Data loss - for in-cell edit mode this is a big deal)
Try entering DD = 11 then its ok for 1st edit, but 2nd edit of the DD,
then the focus moves to the end????
Try entering M = 1, D = 8, Y=2021 without using the mouse
(its not possible as 01 would move focus to end of date)....
and if you choose to type 01 and its not fast enough, the whole date will disappear on entry of 0

Entering a date without using the mouse to move focus is quite important for big data-entry in grids where you are tabbing or clicking over from field to field in large quantities.

Cheers
Phil

Duplicated

Last Updated: 22 Jan 2021 20:42 by ADMIN

Fluent ui styling

Created by: Henk

Comments: 1

Category: UI for Blazor

Type: Feature Request

Fluent ui styling

Wè would like to have the Fluent UI style available for Blazor. We are using the Telerik UI controls in a large project werd the UI has to be very similar to the one of Microsoft D365 Customer Service.

Regards, Henk

Completed

Last Updated: 31 Mar 2022 13:44 by ADMIN

Release 3.2.0

Add Debounce to dropdowns filtering

Created by: Wayne Hiller

Comments: 0

Category: UI for Blazor

Type: Feature Request

Add Debounce to dropdowns filtering

Can you add Debounce to the filtering?

---

ADMIN EDIT

At the moment, you can use the OnRead to implement custom filtering and also debounce the operations: https://docs.telerik.com/blazor-ui/components/combobox/events#onread and the particular example the article links is shown here: https://docs.telerik.com/blazor-ui/knowledge-base/combo-debounce-onread

You may also want to look at item virtualization in the dropdowns - Follow it here: https://feedback.telerik.com/blazor/1457808-combobox-virtualization

There is also a sample attached of implementing debouncing in a WASM app as a reference too.

---

Completed

Last Updated: 22 Jun 2021 19:27 by ADMIN

Release 2.25.0

Stack Panel (Stack Layout Panel) like in WPF/WinForms/Xamarin

Created by: Marin Bratanov

Comments: 0

Category: UI for Blazor

Type: Feature Request

Stack Panel (Stack Layout Panel) like in WPF/WinForms/Xamarin

A stack panel component that creates a layout of items that are vertically positioned.

tpf-layout-predefined-layout-panels-stacklayoutpanel 001

It could also have a wrap layout to make the items horizontal with wrapping

tpf-layout-predefined-layout-panels-wraplayoutpanel 001

or horizontal without wrapping

Completed

Last Updated: 15 Apr 2022 10:55 by ADMIN

Release 3.3.0

Code Snippets for all controls

Created by: Steve

Comments: 3

Category: UI for Blazor

Type: Feature Request

Code Snippets for all controls

Create code snippets for all Blazor controls.

Provide either automation for installing into the Visual Studio toolbox or just provide as a web page for users to copy paste them into the Toolbox.

Duplicated

Last Updated: 21 Jul 2022 09:00 by ADMIN

Datepicker won't let the user type in a year

Created by: Lance

Comments: 8

Category: UI for Blazor

Type: Bug Report

Datepicker won't let the user type in a year

DateTime StartDate=DateTime.Now

When our users type to click on the year and type another one they lose one of the digits - so if they try typing 19 or 18 for instance then it sets the date to year 01

Completed

Last Updated: 17 Nov 2021 13:33 by ADMIN

Release 2.30.0

Add DebounceDelay property to the TextBox and other inputs

Created by: Ian

Comments: 3

Category: UI for Blazor

Type: Feature Request

Add DebounceDelay property to the TextBox and other inputs

I am implementing custom filtering by column in a data grid. The data source is very large so the filtering will be done by a stored procedure in the database. In order to avoid excessive calls to the procedure it would be great if the TextBox had a DebounceDelay property like the one in the SearchBox.

---

ADMIN EDIT

While not technically useful for the grid itself (see the bottom of this thread for more ideas and information on that, a built-in feature is coming there as well), there can be benefit in adding that to the inputs (e.g., the Editor has something like that already by default because it is designed for large content).

Thus, I am reopening this so we can gauge the interest.

In the meantime, using a few lines of application code can achieve debouncing of expensive api calls. Using the OnChange or OnBlur event may also be suitable workarounds, depending on the goal you are after.

---

Declined

Last Updated: 02 Jan 2022 11:44 by ADMIN

Memory doesn't utilize with Garbage Collector (GC)

Created by: Vladimir

Comments: 4

Category: UI for Blazor

Type: Bug Report

Memory doesn't utilize with Garbage Collector (GC)

Reloading the page described down below cause memory leak. Commenting lines with telerik button prevents the problem.

@page "/"

<h3 style="position:absolute; top: 0; z-index: 1000; margin-top: 10px">Home</h3>

↓ commenting these lines prevents the memory leak
<div>
    <TelerikButton OnClick="@SayHelloHandler" Primary="true">Say Hello</TelerikButton>
    <div>@helloString</div>
</div>
↑ commenting these lines prevents the memory leak

@code {
    List<string> strings = new List<string>();

    MarkupString helloString;

    protected override void OnInitialized()
    {
        // Attempt to clear memory with Garbage Collector
        GC.Collect();
        GC.WaitForPendingFinalizers();
        for (int i = 0; i < 1000000; i++)
        {
            string a = "asdasdasdasdddddddddasasdasdasdasdddddddddasasdasdasdasdddddddddasasdasdasdasdddddddddasasda";
            strings.Add(a + "b");
        }


        base.OnInitialized();
    }

    void SayHelloHandler()
    {
        string msg = string.Format("Hello from <strong>Telerik Blazor</strong> at {0}.<br /> Now you can use <b><u><i>C#</i></u></b> to write front-end!", DateTime.Now);
        helloString = new MarkupString(msg);
    }
}

MainLayout.razor:

@layout TelerikLayout
@inherits LayoutComponentBase


<style>
    .navmenu .k-drawer-items {
        margin-top: 3.5rem;
    }

    .navmenu .k-widget.k-drawer {
        background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 100%);
    }

    .k-drawer-container {
        height: 100vh;
    }

    .btn-margin, .btn-margin:hover {
        width: 48px;
        height: 56px;
        color: #FFF;
    }

    .navmenu .k-drawer {
        color: #ffffffd6;
    }

    .navmenu .k-drawer-item:hover, .navmenu .k-drawer-item.k-state-hover {
        color: #ffffffd6;
        background-color: #f0f0f012;
    }

        .navmenu .k-drawer-item:hover.k-state-selected {
            color: #ffffff;
            background-color: #7bafff94;
        }

    .navmenu .k-drawer-item:not(:hover).k-state-selected {
        color: #ffffff;
        background-color: #7bafffbd;
    }

    .navmenu .k-drawer:hover .k-drawer-wrapper {
        width: 240px;
    }

    .navmenu .k-drawer .k-drawer-wrapper {
        transition-duration: 300ms !important;
    }
</style>


<TelerikDrawer Data="@NavigablePages" MiniMode="true" Mode="@DrawerMode.Push" SelectedItem="SelectedItem" Class="navmenu sidebar"
                SelectedItemChanged="ChangeSelectedItem" TItem="DrawerItem">
    <Content>
        <div class="page">

            <div class="main">
                <div class="top-row px-4 auth">
                </div>


                <div class="content px-4">
                    @Body
                </div>
            </div>
        </div>
    </Content>
</TelerikDrawer>



@code {
    List<DrawerItem> NavigablePages { get; set; } =
        new List<DrawerItem>
        {
            new DrawerItem { Text = "Home", Url = "/", Icon = "home" }
        };

    public class DrawerItem
    {
        public string Text { get; set; }
        public string Url { get; set; }
        public string Icon { get; set; }
        public bool IsSeparator { get; set; }
    }
    DrawerItem SelectedItem { get; set; }

    private void ChangeSelectedItem(DrawerItem chosenItem)
    {
        SelectedItem = chosenItem;
    }
}

This code is example. The main problem was with TelerikGrid. Usage of any telerik component caused the same memory leak.

Duplicated

Last Updated: 12 Oct 2022 10:20 by ADMIN

CellRender event for the calendar in the various date pickers

Created by: Thomas

Comments: 0

Category: UI for Blazor

Type: Feature Request

CellRender event for the calendar in the various date pickers

For example, I want to set the Sunday day to red or any other date to a special color.

Here is a workaround that can be used until the feature is released

<style>
    .hide-calendar {
        display: none;
    }

    .special {
        color: red;
        font-weight: bold;
    }
</style>

<div style="width: 400px">
    <TelerikDateInput @bind-Value="@DateValue" Width="90%"></TelerikDateInput>
    <TelerikButton Icon="calendar"
                   OnClick="@( () => isClicked = !isClicked )">
    </TelerikButton>
</div>

<TelerikCalendar Class="@(!isClicked ? "hide-calendar" : "")"
                 @bind-Value="@DateValue"
                 OnCellRender="@OnCellRenderHandler"
                 Min="@(new DateTime(2000, 1, 1))"
                 Max="@(new DateTime(2090, 1, 1))">
</TelerikCalendar>

@code {
    private void OnCellRenderHandler(CalendarCellRenderEventArgs args)
    {
        if (args.View == CalendarView.Month)
        {
            args.Class = args.Date.Day % 3 == 0 ? "special" : "";
        }
        else if (args.View == CalendarView.Decade)
        {
            args.Class = args.Date.Year == 2020 ? "special" : "";
        }
    }

    private DateTime DateValue { get; set; } = DateTime.Today;

    private bool isClicked { get; set; }
}

</AdminEdit>