[英]change windows height based on TabItem Selected wpf
hi i want when user selected tabitem windows height change this is my code: 您好,我想当用户选择Tabitem窗口高度更改时,这是我的代码:
<Windows.Style>
<Style TargetType="Windows">
<Setter Property="Height" Value="220" />
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=tabc,Path=SelectedIndex, UpdateSourceTrigger=PropertyChanged, Mode=Twoway}" Value="1">
<Setter Property="Height" Value="400" />
</DataTrigger>
</Style.Triggers>
</Style>
</Windows.Style>
in visual studio when i change tab code work perfectly but when i compile my code not work 在Visual Studio中,当我更改选项卡代码时可以正常工作,但是在编译时,代码无法正常工作
You could use a DoubleAnimation
to set the Height
of the window. 您可以使用
DoubleAnimation
设置窗口的Height
。 This works as expected: 这按预期工作:
<Window x:Class="WpfApp1.MainWindow"
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:WpfApp1"
mc:Ignorable="d"
Title="MainWindow" Height="300" Width="300">
<Window.Style>
<Style TargetType="Window">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=tabc, Path=SelectedIndex}" Value="1">
<DataTrigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation To="400" Duration="0:0:0" Storyboard.TargetProperty="Height" />
</Storyboard>
</BeginStoryboard>
</DataTrigger.EnterActions>
<DataTrigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation To="220" Duration="0:0:0" Storyboard.TargetProperty="Height" />
</Storyboard>
</BeginStoryboard>
</DataTrigger.ExitActions>
</DataTrigger>
</Style.Triggers>
</Style>
</Window.Style>
<Grid>
<TabControl x:Name="tabc">
<TabItem Header="1">
<TextBlock>first tab</TextBlock>
</TabItem>
<TabItem Header="2">
<TextBlock>second tab</TextBlock>
</TabItem>
</TabControl>
</Grid>
</Window>
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