Wait for Window action result

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Ivan
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Ivan asked on 11 Jun 2021, 05:45 AM | edited on 11 Jun 2021, 05:51 AM
Hello!
I am trying to use a Window component as a dialog with awaiting the result of an action.
Until the user presses the confirm or cancel button, the calling code must wait for an action.
In a Dialog component (not a Window component) this is implemented as:
var result = await dialog.Show().Result;
My implemetation for Window component (component have two buttons with OnClick="@Submit(true or false)"):

bool isVisible, dialogResult; CancellationTokenSource tokenSource; public async Task<bool> Show() { isVisible = true;
  await InvokeAsync(StateHasChanged); return await Task.Run(WaitForResult); }
// Waiting for action

private async Task<bool> WaitForResult() {

tokenSource = new();
while
(!tokenSource.Token.IsCancellationRequested) ;

isVisible = false;
 await InvokeAsync(StateHasChanged);

return dialogResult; } private async void Submit(bool result) { dialogResult = result; tokenSource.Cancel(); }


This works, but WaitForResult method is overloading processor.
PLEASE help me with correct impementation...

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Marin Bratanov
Telerik team
answered on 14 Jun 2021, 08:20 PM

Hi Ivan,

The most straightforward idea I can offer is simply using the Confirm Dialog we provide: https://demos.telerik.com/blazor-ui/dialog/predefined-dialogs.

If you want more complex content, click the Vote and Follow buttons here: https://feedback.telerik.com/blazor/1521466-rendering-html-texts-in-header-and-content-custom-dialog-content-html-components. In the meantime, the following samples can be an alternative: https://github.com/telerik/blazor-ui/tree/master/common/confirm-button and https://github.com/telerik/blazor-ui/tree/master/common/message-box.

Regards,
Marin Bratanov
Progress Telerik

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Ivan
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Marin Bratanov
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