我正在WPF中写一个模态对话框。我如何设置一个WPF窗口没有关闭按钮?我仍然希望它的WindowState有一个正常的标题栏。
我找到了ResizeMode、WindowState和WindowStyle,但这些属性都不允许我隐藏关闭按钮,而是显示标题栏,就像在模态对话框中一样。
我正在WPF中写一个模态对话框。我如何设置一个WPF窗口没有关闭按钮?我仍然希望它的WindowState有一个正常的标题栏。
我找到了ResizeMode、WindowState和WindowStyle,但这些属性都不允许我隐藏关闭按钮,而是显示标题栏,就像在模态对话框中一样。
当前回答
下面是我如何实现类似的目标使用自定义样式没有DllImports和P/Invoke调用。这删除现有的标题栏使用WindowStyle="none",并显示一个'TextBlock'与类似的背景颜色表明作为标题栏。
XAML 代码
<Window x:Class="AddBook"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:controls="http://wpftoolkit.my-libraries.com/v5"
WindowStartupLocation="CenterOwner"
ResizeMode="NoResize"
Style="{DynamicResource WindowStyleX}"
ShowInTaskbar="False"
ShowActivated="True"
SizeToContent="Height"
Title="Add New Book"
Width="450">
..............
</Window>
XAML
<Style x:Key="WindowStyleX" TargetType="{x:Type Window}">
<Setter Property="WindowStyle" Value="None" />
<Setter Property="AllowsTransparency" Value="False" />
<Setter Property="ResizeMode" Value="NoResize" />
<Setter Property="Background" Value="White" />
<Setter Property="BorderThickness" Value="1" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Window}">
<Border BorderBrush="{DynamicResource BlackColor}" BorderThickness="1">
<Grid Background="{TemplateBinding Background}">
<Grid.RowDefinitions>
<RowDefinition Height="30" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Border
Grid.Row="0"
Grid.ColumnSpan="2"
Background="{DynamicResource BlackColor}">
<Grid>
<TextBlock
Grid.Column="1"
Margin="10,0,0,0"
HorizontalAlignment="Left"
VerticalAlignment="Center"
FontSize="16"
Foreground="{DynamicResource WhiteTextForeground}"
Text="{TemplateBinding Title}" />
</Grid>
</Border>
<ContentPresenter Grid.Row="1" />
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
其他回答
如果需要的只是禁止用户关闭窗口,这是一个简单的解决方案。
XAML守则: IsCloseButtonEnabled =“虚假”
它挡住了按钮。
让用户“关闭”窗口,但实际上只是隐藏它。
在窗口的OnClosing事件中,隐藏已经可见的窗口:
If Me.Visibility = Windows.Visibility.Visible Then
Me.Visibility = Windows.Visibility.Hidden
e.Cancel = True
End If
每次后台线程执行时,重新显示后台UI窗口:
w.Visibility = Windows.Visibility.Visible
w.Show()
当终止程序执行时,确保所有窗口都是/可以关闭的:
Private Sub CloseAll()
If w IsNot Nothing Then
w.Visibility = Windows.Visibility.Collapsed ' Tell OnClosing to really close
w.Close()
End If
End Sub
You may run into the need to toggle the window state depending on what page or user control is currently being displayed. (Yes, this is an unusual scenario, but it can happen. In our case we have a user control in our application that is displayed on an external touch screen for customers to interact with. We don't want our customers to have touch access to close the screen. But the rest of the application uses standard windows frames.) To do this from the code behind of the page or user control. Note: You must run it from the Loaded event not the constructor because the control hasn't been populated in the constructor and it will throw an exception.
// To toggle it off
Window.GetWindow(this).WindowStyle = WindowStyle.None;
// To turn it back on toggle it off
Window.GetWindow(this).WindowStyle = WindowStyle.SingleBorderWindow;
我只是使用交互性行为(你需要引用System.Windows.Interactivity)添加了我对Joe White的答案的实现。
代码:
public class HideCloseButtonOnWindow : Behavior<Window>
{
#region bunch of native methods
private const int GWL_STYLE = -16;
private const int WS_SYSMENU = 0x80000;
[DllImport("user32.dll", SetLastError = true)]
private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
[DllImport("user32.dll")]
private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
#endregion
protected override void OnAttached()
{
base.OnAttached();
AssociatedObject.Loaded += OnLoaded;
}
protected override void OnDetaching()
{
AssociatedObject.Loaded -= OnLoaded;
base.OnDetaching();
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
var hwnd = new WindowInteropHelper(AssociatedObject).Handle;
SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_SYSMENU);
}
}
用法:
<Window x:Class="WpfApplication2.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:w="clr-namespace:WpfApplication2">
<i:Interaction.Behaviors>
<w:HideCloseButtonOnWindow />
</i:Interaction.Behaviors>
</Window>
在寻找了很多答案之后,我想出了这个简单的解决方法,我将在这里分享,希望它能帮助到其他人。
我设置WindowStyle=0x10000000。
这设置了窗口样式的WS_VISIBLE (0x10000000)和WS_OVERLAPPED (0x0)值。"Overlapped"是显示标题栏和窗口边框的必要值。通过从我的样式值中删除WS_MINIMIZEBOX (0x20000)、WS_MAXIMIZEBOX (0x10000)和WS_SYSMENU (0x80000)值,标题栏中的所有按钮都被删除了,包括关闭按钮。