我想将对话框的宽度设置为覆盖整个父页面,在这种情况下,UserControland因此是窗口。为此,我尝试将材料设计对话框的宽度绑定到了 ActualWidth
的UserControl。
只要窗口没有最大化,它就能正常工作。
当窗口最大化时,对话框的宽度小于UserControl的宽度。
我试着将UserControl的宽度绑定到用户控件的 ActualWidth
窗口的(Width="{Binding ActualWidth, ElementName=win}"
但最糟糕的是,对话框超过了窗口:我缺少什么?
TestWindow.xaml.MyDialog.xaml:
<Window x:Class="Wpf.Views.TestWindow" x:Name="win"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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"
xmlns:local="clr-namespace:Wpf.Views"
mc:Ignorable="d"
Title="TestWindow" Height="450" Width="800">
<Grid>
<local:MyDialog/> <!-- Width="{Binding ActualWidth, ElementName=win}" -->
</Grid>
</Window>
MyDialog.xaml
<UserControl x:Class="Wpf.Views.MyDialog" x:Name="self"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
MinWidth="300" MinHeight="300" mc:Ignorable="d">
<Grid>
<materialDesign:DialogHost Identifier="1" BorderBrush="{DynamicResource MaterialDesignDivider}" Height="130"
Width="{Binding ActualWidth, ElementName=self}" HorizontalAlignment="Center">
<Button Command="{x:Static materialDesign:DialogHost.OpenDialogCommand}" Width="130">
Open
</Button>
<materialDesign:DialogHost.DialogContent>
<StackPanel Orientation="Vertical" Height="130" Width="{Binding ActualWidth, ElementName=self}">
<TextBlock Text="Work in Progress" HorizontalAlignment="Center"/>
<ProgressBar Style="{DynamicResource MaterialDesignCircularProgressBar}"
HorizontalAlignment="Center" Margin="16" IsIndeterminate="True" Value="0" />
<Button Style="{StaticResource MaterialDesignFlatButton}"
IsCancel="True" Command="{x:Static materialDesign:DialogHost.CloseDialogCommand}" HorizontalAlignment="Center">
CANCEL
</Button>
</StackPanel>
</materialDesign:DialogHost.DialogContent>
</materialDesign:DialogHost>
</Grid>
</UserControl>
我猜想,如果将窗口放置在屏幕边缘旁边,除了最大化,你还会看到类似的问题。原因是DialogHost控件中包含了一个 DialogMargin 属性,默认值为所有边上的35。对于你的目的,你可能想把它设置为0。