When you combine frozen column with row selection and horizontal scrolling is applied (due to column and grid widths), column content are not hidden under frozen columns when a row is selected, as seen bellow in lines 2,3 and 4.

Checkbox, Product Name & Command columns are frozen. "Quantity per Unit" values are clearly visible behind frozen "Product Name" values. You can find a test scenario here (Telerik REPL for Blazor).

All themes suffer from this issue except Fluent theme. With default and bootstrap themes it happens on all odd selected lines and with material theme it happens on all selected lines.

The problem is when filtering programmatically, the X that is normally used to clear the search box disappears.
I am following the Telerik guide here. https://docs.telerik.com/blazor-ui/components/grid/filter/searchbox

The problem is actually demonstrated in the example from that page.

Filtering by typing:

Filtering programatically:

Thanks.

 

I am binding a Grid to a collection of ExpandoObjects. In the collection, there are decimal values. When I try to add Aggregates for the decimal values the Grid throws an exception. 

 

<AdminEdit>

As a workaround, you can cast the decimal values to double instead.

</AdminEdit>

I want to bind the Grid to a collection of DynamicObject. 

Hello

 

What is the purpose of this (https://docs.telerik.com/blazor-ui/components/grid/selection/overview#row-drag-and-drop);

Row Drag and Drop

If the user drags selected rows, the current row selection will be cleared on row drop.

 

Is this a bug? As when you select multiple rows, then drag and drop the rows, it clears the bound selectedItems object (but the rows still remain ticked in the UI). Just confirming this is something that will be fixed?

 

Cheers

Phil

I would like the ability to AutoFit Grid Columns on each change in the grid but also allow the user to adjust the column's width manually without being adjusted back by AutoFit. 

I'd like to customize the filter menu to add another filter operator for string fields - "not ending by".

App just crashed with the below exception.  My code isn't in the stack trace. Chances are there is no proper validation on parameters, allowing me to supply bad data, which later causes this problem.  Please validate the data better, debugging these things is not easy.

Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware: Error: An unhandled exception has occurred while executing the request.

System.ArgumentNullException: Value cannot be null. (Parameter 'source')
   at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Telerik.Blazor.Components.TelerikGrid`1.SetProcessedData(IEnumerable data)
   at Telerik.Blazor.Components.Common.DataBoundComponent`1.ProcessDataSourceResult(DataSourceResult result)
   at Telerik.Blazor.Components.Common.GridBase`1.ProcessDataSourceResult(DataSourceResult result)
   at Telerik.Blazor.Components.Common.DataBoundComponent`1.ProcessDataInternal()
   at Telerik.Blazor.Components.TelerikGrid`1.ProcessDataInternal()
   at Telerik.Blazor.Components.Common.DataBoundComponent`1.OnParametersSetAsync()
   at Telerik.Blazor.Components.TelerikGrid`1.OnParametersSetAsync()
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.SetDirectParameters(ParameterView parameters)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.InitializeNewComponentFrame(DiffContext& diffContext, Int32 frameIndex)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.InitializeNewSubtree(DiffContext& diffContext, Int32 frameIndex)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.InsertNewFrame(DiffContext& diffContext, Int32 newFrameIndex)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.AppendDiffEntriesForRange(DiffContext& diffContext, Int32 oldStartIndex, Int32 oldEndIndexExcl, Int32 newStartIndex, Int32 newEndIndexExcl)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.ComputeDiff(Renderer renderer, RenderBatchBuilder batchBuilder, Int32 componentId, ArrayRange`1 oldTree, ArrayRange`1 newTree)
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.RenderIntoBatch(RenderBatchBuilder batchBuilder, RenderFragment renderFragment, Exception& renderFragmentException)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.AddToRenderQueue(Int32 componentId, RenderFragment renderFragment)
   at Microsoft.AspNetCore.Components.ComponentBase.StateHasChanged()
   at Microsoft.AspNetCore.Components.ComponentBase.CallOnParametersSetAsync()
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
   at Microsoft.AspNetCore.Components.Rendering.ComponentState.SetDirectParameters(ParameterView parameters)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderRootComponentAsync(Int32 componentId, ParameterView initialParameters)
   at Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.RenderComponentAsync(Type componentType, ParameterView initialParameters)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.<>c__11`1.<<InvokeAsync>b__11_0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.ViewFeatures.StaticComponentRenderer.PrerenderComponentAsync(ParameterView parameters, HttpContext httpContext, Type componentType)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ComponentRenderer.PrerenderedServerComponentAsync(HttpContext context, ServerComponentInvocationSequence invocationId, Type type, ParameterView parametersCollection)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ComponentRenderer.RenderComponentAsync(ViewContext viewContext, Type componentType, RenderMode renderMode, Object parameters)
   at Microsoft.AspNetCore.Mvc.TagHelpers.ComponentTagHelper.ProcessAsync(TagHelperContext context, TagHelperOutput output)
   at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner.<RunAsync>g__Awaited|0_0(Task task, TagHelperExecutionContext executionContext, Int32 i, Int32 count)
   at EnrichmentEngine.Pages.Pages__Host.<ExecuteAsync>b__15_1() in C:\Users\PeterDrier\source\repos\fleet\src\sovereign\dotnet\services\studio-calc-engine\SummaReportsPoc\Pages\_Host.cshtml:line 25
   at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync()
   at EnrichmentEngine.Pages.Pages__Host.ExecuteAsync() in C:\Users\PeterDrier\source\repos\fleet\src\sovereign\dotnet\services\studio-calc-engine\SummaReportsPoc\Pages\_Host.cshtml:line 7
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, Boolean invokeViewStarts)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeResultAsync>g__Logged|22_0(ResourceInvoker invoker, IActionResult result)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|30_0[TFilter,TFilterAsync](ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
   at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
   at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddlewareImpl.<Invoke>g__Awaited|8_0(ExceptionHandlerMiddlewareImpl middleware, HttpContext context, Task task)

Description

When you click on a cell which has an Editor Template with a NumericTextBox the text inside does not always get selected/highlighted. This is observed only in Server type applications. 

Reproduction

1. Copy the code from this REPL into a Server side project or directly download the attached Sample Project.
3. Tab in and out of the Count column.
4. The NumericTextBox does not always select the number inside.
5. [Video Example](https://screenpal.com/watch/c0QtXtV5iMR) 

Current

The NumericTextBox does not always select/highlight the number inside

Expected

The NumericTextBox always select/highlight the number inside

I have a Grid with TItem="Dictionary<string, object>". I am not able to programmatically set EditItem and EditField through state.

I tried saving the state while editing to ensure the EditItem and EditField will be properly stored. When I try to retrieve this state object afterwards nothing happens.

Reproduction: https://blazorrepl.telerik.com/GnvYaIbd19iOZ6GH08.

Currently, if I call Grid.AutoFitAllColumnsAsync "too early" it throws a null reference exception.

I am aware that this is a limitation but the behavior can be improved. For example, handle the exception and provide some useful information or give me a programmatic way to know if it's too early to call autofit.

 

The Grid PageSizes DropDownList will not select a new value if it the current value is not visible in the open dropdown. This can happen if there are too many items in the DropDownList and the user has scrolled the PageSizes dropdown.

The problem occurs only when Navigable="true".

Here is a REPL test page

The easiest workaround is to fewer items in the PageSizes DropDownList, so that there is no need for scrolling.

I am using Telerik Grid in our project and I have enabled the feature Reorderable="true". At GridColumnMenuSettings I am getting the following options:

Set column position :

• Move Next 
• Move Previous

Those options are commonly showing for all columns but I want to disable "Move Next" option for the last column and "Move Previous" option for the first column as these options are not applicable to the corresponding columns.

I want to be able to add some content in the header of the auto-generated column when the `RowDraggable` flag is enabled.

I noticed a different behavior when filtering programmatically through the state and when you use the filter UI.

When filtering programmatically the filter is set after the data arrives. I am using a FiltterMenu and the filter icon is colored to indicate there is an applied filter only after the data is filtered. When filtering from the menu, I can the opposite behavior - the filter is set first and then the data is filtered. To me, this seems to be the correct behavior.

Reproduction: https://blazorrepl.telerik.com/wSavwTPd367WqA9r37.

I want to handle dropping an item inside an exact Grid cell.

I have a TelerikGrid with Reordarable enabled inside of a TelerikWindow. Reordering of the column works fine only the drop clue is not showing. I think this is because the z-index is incorrect.

Missing drop clue:

 

z-index of drop clue is 10000:

 

z-index of window is 10002:

We want frozen columns exactly like this:

• https://demos.telerik.com/aspnet-core/grid/frozen-columns

• https://www.telerik.com/kendo-angular-ui/components/grid/columns/locked/#toc-setup

When a user deletes a record that decreases the number of pages on that Grid, and then they try to edit or add a record, they get stuck in the OnCancel event handler, which gets called over and over in an endless loop.

The behavior can be seen:

• After deleting a record in the Grid, which decreases the number of pages.
• The Grid is using a confirmation dialog from the DialogFactory for the Cancel action.

Steps To Reproduce

https://blazorrepl.telerik.com/GokIvFva42BLx7yl37

1. Delete item 11. The Grid will move you to page 1.
2. Try to edit or add a new item. OnCancel will fire in a loop.
3. If OnAdd and OnEdit are not defined, the loop will occur in OnUpdate and OnCancel.

On grids with a lot of data there is a delay between when the grid is assigned the data to when the grid shows the data.  During this UI painting period, the NoDataTemplate is displayed for a second or two.

The grid should not show the NoDataTemplate unless the data source is loaded with an empty collection, not just while it is still trying to show the data.

Note: Having a generic message like in the documentation "No Data available / The data is still loading ..." is not satisfying our users. (Blazor Grid - No Data Template - Telerik UI for Blazor) These should really be two different states that can show different messages.

Thanks