我有一个类似的网格:
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="MyHeader1"/>
<myNamespace:MyRotatedTextBlock
Grid.Row="1" Grid.Column="0" MyText="MyHeader2"/>
</Grid>
myNamespace:MyRotatedTextBlock是一个自定义的WPF控件,如下所示:
<TextBlock Text="{Binding MyText}"
HorizontalAlignment="Center" VerticalAlignment="Center">
<TextBlock.LayoutTransform>
<RotateTransform Angle="90"/>
</TextBlock.LayoutTransform>
</TextBlock>
问题是,当我打开窗口时,我看不到包含旋转文本的第二行。但是,如果我用"100"
替换第二行的Height
(设置为"Auto"
),那么我可以看到第二行显示出来,并且它包含MyHeader2
您也可以从TextBlock(而不是userControl)派生,如下所示:
<TextBlock x:Class="WpfGridRowHeightStackOverflowQuestion.MyRotatedTextBlock"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300"
HorizontalAlignment="Center"
VerticalAlignment="Center">
<TextBlock.LayoutTransform>
<RotateTransform Angle="90"/>
</TextBlock.LayoutTransform>
</TextBlock>
然后只需使用TextBlock中的Text属性,如下所示:
<myNamespace:MyRotatedTextBlock Grid.Row="1" Grid.Column="0" Text="MyHeader2"></myNamespace:MyRotatedTextBlock>
编辑
通过这种方式,它也可以作为UserControl工作(因为绑定的elementname被明确指定为用户控件的名称):
<UserControl x:Class="WpfGridRowHeightStackOverflowQuestion.MyRotatedTextBlock"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300"
Name="CustomRotatedTextBlock">
<TextBlock Text="{Binding ElementName=CustomRotatedTextBlock,Path=MyText}" HorizontalAlignment="Center" VerticalAlignment="Center">
<TextBlock.LayoutTransform>
<RotateTransform Angle="90"/>
</TextBlock.LayoutTransform>
</TextBlock>
</UserControl>
然后,我在代码后面使用INotifyPropertyChanged的Change Notification(WPF非常依赖它;)
public partial class MyRotatedTextBlock : UserControl, INotifyPropertyChanged
{
public MyRotatedTextBlock()
{
InitializeComponent();
}
private String _myText;
public String MyText
{
get { return _myText; }
set {
_myText = value;
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs("MyText"));
}
}
#region INotifyPropertyChanged Members
public event PropertyChangedEventHandler PropertyChanged;
#endregion
}
您尝试过UpdateLayout
吗?打开窗口后尝试网格的UpdateLayout