如何在Wpf中的Usercontrol中调用MahApps Metro对话框 [英] How to call MahApps Metro Dialog box in Usercontrol in Wpf
本文介绍了如何在Wpf中的Usercontrol中调用MahApps Metro对话框的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
当我尝试调用 MahApps Metro 对话框时,我在传递值时出错
When I tried to call MahApps Metro Dialog Boxes I am getting error while Passing Values
在传递参数时调用 Dialog Control 我需要传递 Metrowindow 参数
while calling Dialog Control when Passing parameters I need to pass Metrowindow parameter
但我需要在用户控件中调用它
But I need to call it in User control
下面是我需要Dialog控件时调用的方法
Below is the Method I will call when I need Dialog control
public async void ShowMessageDialog(object sender, RoutedEventArgs e)
{
// This demo runs on .Net 4.0, but we're using the Microsoft.Bcl.Async package so we have async/await support
// The package is only used by the demo and not a dependency of the library!
var mySettings = new MetroDialogSettings()
{
AffirmativeButtonText = "Hi",
NegativeButtonText = "Go away!",
FirstAuxiliaryButtonText = "Cancel",
// ColorScheme = MetroDialogOptions.ColorScheme
};
MessageDialogResult result = await this.ShowMessageAsync("Hello!", "Welcome to the world of metro!",
MessageDialogStyle.AffirmativeAndNegativeAndSingleAuxiliary, mySettings);
if (result != MessageDialogResult.FirstAuxiliary)
await this.ShowMessageAsync("Result", "You said: " + (result == MessageDialogResult.Affirmative ? mySettings.AffirmativeButtonText : mySettings.NegativeButtonText +
Environment.NewLine + Environment.NewLine + "This dialog will follow the Use Accent setting."));
}
public static Task<MessageDialogResult> ShowMessageAsync(this MetroWindow window, string title, string message, MessageDialogStyle style = MessageDialogStyle.Affirmative, MetroDialogSettings settings = null)
{
window.Dispatcher.VerifyAccess();
return HandleOverlayOnShow(settings, window).ContinueWith(z =>
{
return (Task<MessageDialogResult>)window.Dispatcher.Invoke(new Func<Task<MessageDialogResult>>(() =>
{
if (settings == null)
{
settings = window.MetroDialogOptions;
}
//create the dialog control
var dialog = new MessageDialog(window, settings)
{
Message = message,
Title = title,
ButtonStyle = style
};
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
return dialog.WaitForLoadAsync().ContinueWith(x =>
{
if (DialogOpened != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogOpened(window, new DialogStateChangedEventArgs())));
}
return dialog.WaitForButtonPressAsync().ContinueWith(y =>
{
//once a button as been clicked, begin removing the dialog.
dialog.OnClose();
if (DialogClosed != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogClosed(window, new DialogStateChangedEventArgs())));
}
Task closingTask = (Task)window.Dispatcher.Invoke(new Func<Task>(() => dialog._WaitForCloseAsync()));
return closingTask.ContinueWith(a =>
{
return ((Task)window.Dispatcher.Invoke(new Func<Task>(() =>
{
window.SizeChanged -= sizeHandler;
window.RemoveDialog(dialog);
return HandleOverlayOnHide(settings, window);
}))).ContinueWith(y3 => y).Unwrap();
});
}).Unwrap();
}).Unwrap().Unwrap();
}));
}).Unwrap();
}
推荐答案
ShowMessageAsync 是 MetroWindow 的扩展方法,所以这段代码应该可以工作:
ShowMessageAsync is an extension method for MetroWindow, so this code should work:
var metroWindow = (Application.Current.MainWindow as MetroWindow);
await metroWindow.ShowMessageAsync(title, message);
这篇关于如何在Wpf中的Usercontrol中调用MahApps Metro对话框的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文