Wait for Window action result

[Ivan]

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...

[Marin Bratanov]

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