Bug: Identifier Not Found

[Mliybs]

I got a crush when I use the Android verision of my app. When I was debugging it on my computer, I got the exception message:

InvalidOperationException: No Loaded DialogHost have an Identifier property matching dialogIdentifier (The Identifier)

It happened at DialogHost.Close(String dialogIdentifier) when I had just closed a message box, opening the second one(using await).

It only happens when the two boxes both use ShowAsPopupAsync.

I found that the the bug may be caused by the SetCloseAction in MsBox class. When the first one is going to be closed, the TrySetResult method is invoked, then the second one is opened, but the first have not been closed, it made the first cannot be found with the identifier and caused the crush.

When I use await Task.Delay(10) between two boxes or let the TrySetResult method be invoked after the DialogHost.Close, it never happens again.

I'm a Chinese student, if my words are wrong at somewhere, please let me know.

By the way, I would like to create a pull request if needed :D

[Mliybs]

A picture of the bug

[CreateLab]

1. update to actual version, if bug reproduce please give an some code example

[Mliybs]

1. update to actual version, if bug reproduce please give an some code example

thx :D

[shaosu]

Exception when calling ShowAsPopupAsync twice

private async void CustomInputPasswdValue_OnClick(object sender, RoutedEventArgs e)
{
    ButtonDefinition[] buttons = new ButtonDefinition[2];
    buttons[0] = new ButtonDefinition() { IsDefault = true, Name = "OK" };
    buttons[1] = new ButtonDefinition() { IsCancel = true, Name = "Cancel" };
    var CustomParam = new MessageBoxCustomParams
    {
        ContentTitle = "Custom Input Passwd Value",
        ContentMessage = $"Please enter a string",
        Icon = MsBox.Avalonia.Enums.Icon.Info,
        InputParams = new InputParams() { Label = "Passwd:", DefaultValue = "AAA" }, // , PasswordChar = "*"
        ButtonDefinitions = buttons,
    };

    var box = MessageBoxManager.GetMessageBoxCustom(CustomParam);
    var result = await box.ShowAsPopupAsync(this); // Fail:On box2 ShowAsPopupAsync
    // System.InvalidOperationException:“No loaded DialogHost have an Identifier property matching dialogIdentifier ('MsBoxIdentifier4931f5a5-d63a-4814-8613-8e3870df1497') argument.”
    string InputValue = box.InputValue;
    box = null;
    if (result == "OK")
    {
       var box2 = MessageBoxManager.GetMessageBoxStandard("Caption", $"Your passwd value is:{InputValue}", ButtonEnum.Ok);
       await box2.ShowAsPopupAsync(this);
    }
}

[CreateLab]

@shaosu please open new issue