TelerikWindow retains state if reopened

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Stefano asked on 10 Apr 2025, 07:20 AM

Hi,
I'm developing a Blazor web app with:
- .NET9,
- rendering

@rendermode="new InteractiveWebAssemblyRenderMode(prerender: true)

I would like to show data starting from the selected record in a grid in a telerik window, where starting from this data I would populate various fields in a chain.
This data could be modified inside the telerik window and saved using a button.
This use is possible but there is a problem to solve: if I modify the data in the telerik window and then close it, the modified data is maintained if I reopen the telerik window.

I'll give an example:
This is the code available in the telerik Blazor guides:

<TelerikButton OnClick="@OpenWindow">Open Window</TelerikButton>

<TelerikWindow @ref="WindowRef" @bind-Visible="@WindowVisible">
    <WindowTitle>
        Window Title
    </WindowTitle>
    <WindowActions>
        <WindowAction Name="Close" />
    </WindowActions>
    <WindowContent>
        <p role="status">Current count: @CurrentCount</p>
        <TelerikButton OnClick="IncrementCount">Increment Count</TelerikButton>
    </WindowContent>
</TelerikWindow>

@code {
    private TelerikWindow? WindowRef { get; set; }

    private bool WindowVisible { get; set; }

    private int CurrentCount { get; set; }

    private void IncrementCount()
    {
        CurrentCount++;

        WindowRef?.Refresh();
    }

    private void OpenWindow()
    {
        WindowVisible = true;
    }
}

If
- I open the telerik window and increase the counter to 5
- I close the window
- I click on the button again, the window does not show me the count at 0 but at 5.

I would like to know if there is a simple way to recreate from scratch the telerik window every time it is called, without keeping the previous state.

P.S.
I would not want to worry about manually resetting the fields every time I open the telerik window

Thanks

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