Declined
Last Updated: 25 Sep 2024 08:50 by ADMIN
Created by: Joshua
Comments: 2
Category: Grid
Type: Feature Request
0
The options available in the grid popup edit settings are very convenient because a substantial jump in complexity/effort is needed to use a custom edit form. It would be great to have additional parameters that correspond to the window position and draggable properties. 
Unplanned
Last Updated: 19 Sep 2024 08:06 by ADMIN
Loading Groups on Demand in a column with a nullable data type groups all records under the "Null" group
Unplanned
Last Updated: 19 Sep 2024 06:58 by ADMIN
Created by: Davide
Comments: 4
Category: Grid
Type: Feature Request
33
I'd like to be able to sort the grouped column.
Unplanned
Last Updated: 12 Sep 2024 01:44 by Federico
Created by: Igor
Comments: 3
Category: Grid
Type: Feature Request
43

In a grouped Grid with editing if I collapse all groups and then expand one to edit an item in it, once I press Enter to complete the editing all groups expand.

Please add option for persisting the Collapsed State of the groups.

---

TELERIK EDIT


The feature applies to the other data operations as well (for example, paging, sorting).

Here is how to maintain the collapsed groups after editing by using the Grid OnStateChanged event and the Grid state as a whole:

@using Telerik.DataSource

<TelerikGrid @ref="@GridRef"
             Data="@GridData"
             TItem="@Employee"
             Pageable="true"
             Sortable="true"
             Groupable="true"
             FilterMode="GridFilterMode.FilterRow"
             OnStateInit="@OnGridStateInit"
             OnStateChanged="@OnGridStateChanged"
             EditMode="@GridEditMode.Inline"
             OnUpdate="@OnGridUpdate">
    <GridColumns>
        <GridColumn Field="@nameof(Employee.Name)" />
        <GridColumn Field="@nameof(Employee.Team)" />
        <GridColumn Field="@nameof(Employee.Salary)" />
        <GridColumn Field="@nameof(Employee.OnVacation)" />
        <GridCommandColumn>
            <GridCommandButton Command="Save" Icon="@SvgIcon.Save" ShowInEdit="true">Update</GridCommandButton>
            <GridCommandButton Command="Edit" Icon="@SvgIcon.Pencil">Edit</GridCommandButton>
            <GridCommandButton Command="Cancel" Icon="@SvgIcon.Cancel" ShowInEdit="true">Cancel</GridCommandButton>
        </GridCommandColumn>
    </GridColumns>
</TelerikGrid>

@code {
    private TelerikGrid<Employee>? GridRef { get; set; }

    private List<Employee> GridData { get; set; } = new();

    private ICollection<int>? GridCollapsedGroups { get; set; }

    private void OnGridUpdate(GridCommandEventArgs args)
    {
        var updatedItem = (Employee)args.Item;
        var originalItemIndex = GridData.FindIndex(x => x.Id == updatedItem.Id);

        if (originalItemIndex >= 0)
        {
            GridData[originalItemIndex] = updatedItem;
        }

        GridCollapsedGroups = GridRef!.GetState().CollapsedGroups;
    }

    private async Task OnGridStateChanged(GridStateEventArgs<Employee> args)
    {
        if (args.PropertyName == "EditItem" && GridCollapsedGroups != null)
        {
            args.GridState.CollapsedGroups = GridCollapsedGroups;

            await GridRef!.SetStateAsync(args.GridState);

            GridCollapsedGroups = default;
        }
    }

    private void OnGridStateInit(GridStateEventArgs<Employee> args)
    {
        args.GridState.GroupDescriptors = new List<GroupDescriptor>();

        args.GridState.GroupDescriptors.Add(new GroupDescriptor()
        {
            Member = nameof(Employee.Team),
            MemberType = typeof(string)
        });
    }

    protected override void OnInitialized()
    {
        for (int i = 1; i <= 20; i++)
        {
            GridData.Add(new Employee()
            {
                Id = i,
                Name = $"Name {i}",
                Team = $"Team {i % 4 + 1}",
                Salary = (decimal)Random.Shared.Next(1000, 3000),
                OnVacation = i % 3 == 0
            });
        }
    }

    public class Employee
    {
        public int Id { get; set; }
        public string Name { get; set; } = string.Empty;
        public string Team { get; set; } = string.Empty;
        public decimal Salary { get; set; }
        public bool OnVacation { get; set; }
    }
}

Unplanned
Last Updated: 03 Sep 2024 12:49 by Emmett
Created by: Brian
Comments: 5
Category: Grid
Type: Feature Request
26
I would like to use the endless scrolling feature (like in the Telerik UI for jQuery) with the Telerik Blazor Grid.
Unplanned
Last Updated: 29 Aug 2024 08:23 by ADMIN
The current Blazor Grid does not support selection of multiple ranges of items in a grid. When executing the following steps  (example is from https://docs.telerik.com/blazor-ui/components/grid/selection/rows) I would expect the row of 'Employee 9' to be selected too, but this is not the case. Therefor a request to make it possible to use the combination Ctrl + Shift in combination with the grid selection to select multiple ranges of items. This would be the same behavior as in Windows Explorer for example.
Unplanned
Last Updated: 28 Aug 2024 13:57 by Leland

When I override the IsValid method to return a ValidationResult the Incell & Inline edit modes allow the editing to be continued even if an invalid value is present. 

===

Telerik edit: A possible workaround is to cancel OnUpdate and possibly, OnEdit too. Here is a complete example:

https://blazorrepl.telerik.com/QyaWxkvv10stL8jB06

 

Declined
Last Updated: 20 Aug 2024 13:24 by Ze

It would be good to have a Grid parameter like "ExpandDetailsOnSelection" for the Grid:

-> When the user selects a row, the DetailTemplate automatically expands - the DetailTemplate of the previous selected item is automatically collapsed

Advantages:

- no "+" button needed

- easy to integrate for 2-way-binding on SelectedItems (no need to use GridState and RowClick event)

Completed
Last Updated: 16 Aug 2024 05:32 by ADMIN
In Incell edit mode you have to click twice on the cell to focus it and the soft keyboard to appear.
Unplanned
Last Updated: 15 Aug 2024 12:39 by Lee
Created by: Rac
Comments: 3
Category: Grid
Type: Feature Request
7

Hello,

Currently the Id and Field properties of GridColumnState in the GridState do not have setters. As a result, these properties are not deserialized, e.g. when sending GridState information from the client to the server in WebAssembly apps.

I would like to determine the existing columns in the Grid and tailor the database request, so that the fetched data includes only the required columns.

Another possible use case is detecting outdated GridState information in localStorage, after the app has been updated and the Grid contains different columns.

Completed
Last Updated: 15 Aug 2024 12:33 by David
Release 5.1.0 (31 Jan 2024) (R1 2024)
Hello,

We have a Blazor Telerik Grid with DetailTemplate. One of the columns in Master/Parent is an editable column. The grid is set with "Incell" for property 'EditMode'.

Issue:-

When the editable column is clicked for editing, the entire grid row(with detail) is collapsed if the row is in expanded mode. Once editing is completed, the grid goes back to its previous state(expanded).

Editing parent column in collapsed mode, works without any issues.

Would like to know if I can keep the grid row in expanded mode while editing(ie. keep the  original state) if its in expanded state.

If not, is it the default behavior of hierarchy grid and how can it be overridden?

Note - Tried with OnEdit and OnRowClick events, but the collapse happens before the respective event handler call.

Thanks in advance !

Sreeni
Completed
Last Updated: 13 Aug 2024 10:34 by ADMIN
Release 2024 Q3 (Aug)
The issue targets a Grid with cell selection and DragToSelect feature enabled where at least one column has Visible="false". With this configuration, the selected cells do not match the area that the user dragged to select.
Completed
Last Updated: 13 Aug 2024 10:34 by ADMIN
Release 2024 Q3 (Aug)
Created by: Marco
Comments: 0
Category: Grid
Type: Bug Report
1

Initial groups are duplicated in version 6.1.0. The OnStateInit event fires twice and the group descriptors are added twice. The problem occurs only when using <GridAggregates>.

The workaround is to clear the GroupDescriptors collection on OnStateInit.

@using Telerik.DataSource

<h2>No Aggregates</h2>

<p><code>OnStateInitCounter1:</code> @OnStateInitCounter1</p>
<TelerikGrid Data="@GridData"
             TItem="@SampleModel"
             Groupable="true"
             OnStateInit="@OnGridStateInit1">
    <GridAggregates>

    </GridAggregates>
    <GridColumns>
        <GridColumn Field="@nameof(SampleModel.Name)" />
        <GridColumn Field="@nameof(SampleModel.GroupName)" />
    </GridColumns>
</TelerikGrid>

<h2>With Aggregates</h2>

<p><code>OnStateInitCounter2:</code> @OnStateInitCounter2</p>
<TelerikGrid Data="@GridData"
             TItem="@SampleModel"
             Groupable="true"
             OnStateInit="@OnGridStateInit2">
    <GridAggregates>
        <GridAggregate Field="@nameof(SampleModel.Name)" Aggregate="@GridAggregateType.Count" />
    </GridAggregates>
    <GridColumns>
        <GridColumn Field="@nameof(SampleModel.Name)" />
        <GridColumn Field="@nameof(SampleModel.GroupName)" />
    </GridColumns>
</TelerikGrid>

<h2>With Aggregates and Workaround</h2>

<p><code>OnStateInitCounter3:</code> @OnStateInitCounter3</p>
<TelerikGrid Data="@GridData"
             TItem="@SampleModel"
             Groupable="true"
             OnStateInit="@OnGridStateInit3">
    <GridAggregates>
        <GridAggregate Field="@nameof(SampleModel.Name)" Aggregate="@GridAggregateType.Count" />
    </GridAggregates>
    <GridColumns>
        <GridColumn Field="@nameof(SampleModel.Name)" />
        <GridColumn Field="@nameof(SampleModel.GroupName)" />
    </GridColumns>
</TelerikGrid>

@code {
    private int OnStateInitCounter1 { get; set; }
    private int OnStateInitCounter2 { get; set; }
    private int OnStateInitCounter3 { get; set; }

    private void OnGridStateInit1(GridStateEventArgs<SampleModel> args)
    {
        ++OnStateInitCounter1;

        args.GridState.GroupDescriptors.Add(new GroupDescriptor
        {
            Member = nameof(SampleModel.GroupName)
        });
    }

    private void OnGridStateInit2(GridStateEventArgs<SampleModel> args)
    {
        ++OnStateInitCounter2;

        args.GridState.GroupDescriptors.Add(new GroupDescriptor
        {
            Member = nameof(SampleModel.GroupName)
        });
    }

    private void OnGridStateInit3(GridStateEventArgs<SampleModel> args)
    {
        ++OnStateInitCounter3;

        args.GridState.GroupDescriptors = new List<GroupDescriptor>();
        // OR
        args.GridState.GroupDescriptors.Clear();

        args.GridState.GroupDescriptors.Add(new GroupDescriptor
        {
            Member = nameof(SampleModel.GroupName)
        });
    }

    private List<SampleModel> GridData { get; set; } = new();

    protected override void OnInitialized()
    {
        for (int i = 1; i <= 4; i++)
        {
            GridData.Add(new SampleModel()
            {
                Id = i,
                Name = $"Name {i}",
                GroupName = $"Group {i % 2 + 1}"
            });
        }
    }

    public class SampleModel
    {
        public int Id { get; set; }
        public string Name { get; set; } = string.Empty;
        public string GroupName { get; set; } = string.Empty;
    }
}

Completed
Last Updated: 13 Aug 2024 10:33 by ADMIN
Release 2024 Q3 (Aug)

When trying to make a cell selection using Shift + Click, the clicked cells are not correctly added to the selection range. When clicking on adjacent cells, the selection range gets misplaced resulting in deselection of the first selected cells.

Video: https://app.screencast.com/dsRpqw70tNVGi.

Completed
Last Updated: 13 Aug 2024 10:32 by ADMIN
Release 2024 Q3 (Aug)
In a Grid with multi-column headers and cell selection, the selected cells do not match the area that the user dragged to select.
Unplanned
Last Updated: 13 Aug 2024 06:46 by Nikolas
Created by: Felix
Comments: 2
Category: Grid
Type: Feature Request
7
I have a Grid with lots of rows and I have enabled grouping. Due to the fact that I need to show all groups expanded by default I cannot use Load Groups on demand and row virtualization. When I expand/collapse groups the performance is not good. 
Unplanned
Last Updated: 09 Aug 2024 15:55 by Terrence

I have a filterable Grid with Enum values. I am saving the state in the OnStateChanged so I can then restore it on future page loads (similar to the approach here).

When trying to restore the deserialized state in the OnStateInit, the Grid throws:

Unhandled exception rendering component: Specified cast is not valid.

Reproduction: https://blazorrepl.telerik.com/QSaiaDkq55RfazF402.

===

ADMIN EDIT

===

At the time of writing (UI for Blazor 6.1.0), the Grid only supports int as an underlying type of the Enum values. When the state is deserialized, the Enum values are returned as short and this causes the issue.

To handle the scenario for the time being you can modify the state object before setting it to the Grid. Loop through the filter descriptors in the state and convert the filter value of the columns bound to Enum, so the value type in the state is the supported int.

Here is a basic example: https://blazorrepl.telerik.com/woaCOZlT29E05lpL45.

 

Completed
Last Updated: 09 Aug 2024 08:46 by ADMIN
Release 6.1.0

In a filterable Grid, if a column is not bound to a field from the model the Grid uses, it throws with:

Error: System.ArgumentNullException: Value cannot be null. (Parameter 'nullableType')

Reproduction: https://blazorrepl.telerik.com/GyEUlFEs04AUJoJ601.

The issue is reproducible :

  • For `FilterRow` -  on initialization even if the column is not filterable.
  • For `FilterMenu` - on initialization when the column is filterable.

===

ADMIN EDIT

===

A possible workaround for the time being is to set the FieldType of the column: https://blazorrepl.telerik.com/wSugvFui10jhcpZy00.


Unplanned
Last Updated: 05 Aug 2024 14:48 by Nicholas
I want to take a row and move the mouse while holding the row at the bottom of the screen and it scrolls.  Is this feature available?  This is built in for an HTML grid.
Completed
Last Updated: 05 Aug 2024 13:31 by ADMIN
Release 6.1.0
Since Telerik UI for Blazor 6.0.0 if I have defined aggregates and I load the Grid's data with async method the data never loads in the Grid.