Empty dialog content's visuals
See original GitHub issueI’ve written a simple program with avalonia’s mvvm template. Here’s my MainWindowView.xaml
code:
<Window xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:vm="using:DialogHostTest.ViewModels"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:dialogHost="clr-namespace:DialogHost;assembly=DialogHost.Avalonia"
mc:Ignorable="d"
Width="300"
Height="200"
x:Class="DialogHostTest.Views.MainWindow"
Icon="/Assets/avalonia-logo.ico"
Title="DialogHostTest">
<Design.DataContext>
<vm:MainWindowViewModel/>
</Design.DataContext>
<dialogHost:DialogHost Identifier="{Binding DialogHostId}">
<Button VerticalAlignment="Stretch"
HorizontalAlignment="Stretch"
VerticalContentAlignment="Center"
HorizontalContentAlignment="Center"
Content="Show dialog" Command="{Binding ShowDialogAsync}"/>
</dialogHost:DialogHost>
</Window>
And here’s MainViewModel
’s code:
using System.Threading.Tasks;
namespace DialogHostTest.ViewModels
{
public class MainWindowViewModel : ViewModelBase
{
public static string DialogHostId => "MainDialogHost";
public async Task ShowDialogAsync()
{
var result = await MessageBoxViewModel.ShowAsync("Test message!", DialogHostId);
}
}
}
I want to show message box on this button’s click, so I wrote a simple UserControl
and ViewModel
for it.
View’s code:
<UserControl xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
x:Class="DialogHostTest.Views.MessageBoxView">
<Grid RowDefinitions="*,10,*"
ColumnDefinitions="*,10,*">
<TextBlock Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="3"
Text="{Binding Message}"/>
<Button Grid.Row="2" Grid.Column="0"
Content="OK"
Command="{Binding OkButton}"/>
<Button Grid.Row="2" Grid.Column="2"
Content="Cancel"
Command="{Binding CancelButton}"/>
</Grid>
</UserControl>
ViewModel’s code:
using System.Threading.Tasks;
using ReactiveUI;
using DialogHostTest.Enums;
namespace DialogHostTest.ViewModels
{
public class MessageBoxViewModel : ViewModelBase
{
private string _message;
public string Message
{
get => _message;
set => this.RaiseAndSetIfChanged(ref _message, value);
}
public DialogResult DialogResult { get; set; }
public MessageBoxViewModel(string message)
{
Message = message;
}
public void OkButton()
{
DialogResult = DialogResult.OK;
CloseDialog(MainWindowViewModel.DialogHostId);
}
public void CancelButton()
{
DialogResult = DialogResult.Cancel;
CloseDialog(MainWindowViewModel.DialogHostId);
}
public void CloseDialog(string dialogHostId)
{
DialogHost.DialogHost.Close(dialogHostId, DialogResult);
}
public static async Task<DialogResult> ShowAsync(string message, string dialogHostId)
{
var res = await DialogHost.DialogHost.Show(new MessageBoxViewModel(message), dialogHostId);
return (DialogResult)res;
}
}
}
But when I click on the button, I can’t see the desired UserControl
:
That’s how it looks in VS’s designer:
Though I must say, that when I click on areas, where buttons should be, the dialog closes successfully, and I receive desired DialogResult
.
Issue Analytics
- State:
- Created 2 years ago
- Comments:7 (7 by maintainers)
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I think this is a bug and I’m writing a fix right now. But in general, yes, you can fix it yourself.
Sorry for the long answer.
I will try to take the time and fix it soon.