Error for Dropdown in IDE

Radzen Blazor Studio
1

I have the following dropdown and error in the IDE, the application compiles and runs:

IEnumerable<System.Collections.Generic.KeyValuePair<string, int?>> CustomerAcceptance;

CustomerAcceptance = new List<KeyValuePair<string,int?>> { new KeyValuePair<string,int?>("Accepted",1), new KeyValuePair<string,int?>("Rejected",2), }.GroupBy(x => x.Value) .Select(g => g.First()) .ToList(); }


<RadzenDropDown TValue="int?" Data="@CustomerAcceptance" ValueProperty="Value" TextProperty="Key" @bind-Value="@Quote.QcustomerApproval" Name="StatusDropDown" Change="@CustomerAcceptanceChange" Disabled="@(CustomerAcceptanceDisable)" class="CustomerAcceptance" />

Error:
System.InvalidOperationException: More than one sibling of component 'Radzen.Blazor.RadzenDropDownItem`1[System.Nullable`1[System.Int32]]' has the same key value, '100'. Key values must be unique.
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.ThrowExceptionForDuplicateKey(Object key, RenderTreeFrame& frame)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.BuildKeyToInfoLookup(DiffContext diffContext, Int32 oldStartIndex, Int32 oldEndIndexExcl, Int32 newStartIndex, Int32 newEndIndexExcl)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.AppendDiffEntriesForRange(DiffContext& diffContext, Int32 oldStartIndex, Int32 oldEndIndexExcl, Int32 newStartIndex, Int32 newEndIndexExcl)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.AppendDiffEntriesForFramesWithSameSequence(DiffContext& diffContext, Int32 oldFrameIndex, 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.AppendDiffEntriesForFramesWithSameSequence(DiffContext& diffContext, Int32 oldFrameIndex, 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.AppendDiffEntriesForFramesWithSameSequence(DiffContext& diffContext, Int32 oldFrameIndex, 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.AppendDiffEntriesForFramesWithSameSequence(DiffContext& diffContext, Int32 oldFrameIndex, 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.AppendDiffEntriesForFramesWithSameSequence(DiffContext& diffContext, Int32 oldFrameIndex, Int32 newFrameIndex)
   at Microsoft.AspNetCore.Components.RenderTree.RenderTreeDiffBuilder.AppendDiffEntriesForRange(DiffContext& diffContext, Int32 oldStartIndex, Int32 oldEndIndexExcl, Int32 newStartIndex, Int32 newEndIndexExcl)
   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 Radzen.Server.RemoteRenderer.HandleException(Exception exception)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessRenderQueue()
   at Radzen.Server.ProjectServer.Render(String fileName, String source, Boolean renderLayout)
   at Radzen.Server.ProgramController.Render(RenderRequest request)

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image1541×1486 90.5 KB

Is there a way to fix this?

2

I resolved with this:

protected List<KeyValuePair<string,int?>> CustomerAcceptance { get; set; } = new();

CustomerAcceptance = new()
{
    new("Accepted", 1),
    new("Rejected", 2),
};
3

Hi @ken.stoner,

This issue should have been resolved in the latest version of Radzen Blazor Studio 1.59.0.