我有一个包含这三类内容的WPF应用程序......
UserControlZack1位于我的WindowMain ...
<Window x:Class="WindowMain"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:ProjectName"
...
Name="WindowMain">
<Grid>
...
<local:UserControlZack x:Name="UserControlZack1" ... />
...
</Grid>
</Window>
UserControlZack1显示一个WindowModal dailog框...
Partial Public Class UserControlZack ... Private Sub SomeButton_Click(...) 'instantiate the dialog box and open modally... Dim box As WindowModal = New WindowModal() box.Owner = ????? box.ShowDialog() 'process data entered by user if dialog box is accepted... If (box.DialogResult.GetValueOrDefault = True) Then _SomeVar = box.SomeVar ... End If End Sub End Class
如何将box.Owner设置为正确的Window,我正在运行的WindowMain实例?
我无法使用box.Owner = Me.Owner
,因为“'所有者'不是'ProjectName.UserControlZack'的成员。”
我无法使用box.Owner = Me.Parent
,因为它返回一个网格,而不是窗口。
我无法使用box.Owner = WindowMain
,因为“'WindowMain'是一种类型,不能用作表达式。”
答案 0 :(得分:123)
尝试使用
.Owner = Window.GetWindow(this)
答案 1 :(得分:40)
要获得控件所在的顶级窗口,假设有一个:
(Window)PresentationSource.FromVisual(this).RootVisual
获取主窗口:
Application.Current.MainWindow
答案 2 :(得分:8)
MyWpfDialog dialog = new MyWpfDialog();
//remember, this is WinForms UserControl and its Handle property is
//actually IntPtr containing Win32 HWND.
new System.Windows.Interop.WindowInteropHelper(dialog).Owner = this.Handle;
dialog.ShowDialog();
答案 3 :(得分:5)
更新以尝试并帮助Greg发表评论。该命令在主窗口菜单,用户控件中的按钮和用户控件中的上下文菜单中工作。
我会用命令来做。所以有一个类Commands.cs类似于:
public static class Commands
{
public static RoutedUICommand TestShowDialogCommand = new RoutedUICommand("Test command", "TestShowDialog", typeof(Commands));
}
在主窗口中注册这些:(您不需要canshow,默认为true)
public Window1()
{
InitializeComponent();
CommandManager.RegisterClassCommandBinding(typeof(System.Windows.Controls.Control),
new CommandBinding(Commands.TestShowDialogCommand, ShowDialogCommand, CanShowDialogCommand));
}
private void ShowDialogCommand(object sender, ExecutedRoutedEventArgs e)
{
var box = new Window();
box.Owner = this;
box.ShowDialog();
}
private void CanShowDialogCommand(object sender, CanExecuteRoutedEventArgs e)
{
e.CanExecute = true;
}
这是我主窗口的xaml:
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:WpfApplication1="clr-namespace:WpfApplication1"
Title="Window1" Height="300" Width="322">
<Grid>
<StackPanel>
<Menu>
<MenuItem Header="Test">
<MenuItem Header="ShowDialog" Command="{x:Static WpfApplication1:Commands.TestShowDialogCommand}"/>
</MenuItem>
</Menu>
<WpfApplication1:BazUserControl />
</StackPanel>
</Grid>
</Window>
这是我的用户控件的xaml(仅限默认代码)
<UserControl x:Class="WpfApplication1.BazUserControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:WpfApplication1="clr-namespace:WpfApplication1"
Height="300" Width="300">
<Grid>
<StackPanel>
<Button Command="{x:Static WpfApplication1:Commands.TestShowDialogCommand}" Content="ClickMe" ></Button>
<TextBox>
<TextBox.ContextMenu>
<ContextMenu>
<MenuItem Header="ShowDialog" Command="{x:Static WpfApplication1:Commands.TestShowDialogCommand}" />
</ContextMenu>
</TextBox.ContextMenu>
</TextBox>
</StackPanel>
</Grid>
</UserControl>
您可以更进一步,并在控制器类中处理该命令,并使其更多一点MVC。
答案 4 :(得分:0)
我通过我的XAML爬回来一路爬行......
box.Owner = DirectCast(DirectCast(DirectCast(Me.Parent, Grid).Parent, Grid).Parent, Window)
但这似乎相当不优雅。还有更好的方法吗?
答案 5 :(得分:0)
如何将窗口名称更改为WindowMain1或其他内容,并将所有者设置为?