Create style for TextBlock in DataGridTextColumn

问题

I want to create a global style that sets the VerticalAlignment to Center for all TextBlock controls inside a DataGrid or inside a DataGridTextColumn.

I don't want to copy the following into every DataGridTextColumn because it feels repetitive.

<DataGridTextColumn Header="Some Property" Binding="{Binding SomeProperty}">
    <DataGridTextColumn.ElementStyle>
        <Style TargetType="TextBlock">
            <Setter Property="VerticalAlignment" Value="Center"></Setter>
        </Style>
    </DataGridTextColumn.ElementStyle>
</DataGridTextColumn>

I tried something like the following but it doesn't work because DataGridTextColumn does not inherit from FrameworkElement or FrameworkContentElement. DataGrid itself does but any further wrapping I try leads to errors:

<Style TargetType="DataGridTextColumn">
    <Setter Property="ElementStyle">
        <Setter.Value>
            <Style TargetType="TextBlock">
                <Setter Property="VerticalAlignment" Value="Center"/>
            </Style>
        </Setter.Value>
    </Setter>
</Style>

回答1:

You can define a CellStyle as below:

<Style x:Key="DataGridCellStyle" TargetType="DataGridCell">
    <Setter Property="FocusVisualStyle" Value="{x:Null}" />
    <Setter Property="BorderThickness" Value="0"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type DataGridCell}">
                <Grid Background="{TemplateBinding Background}">
                    <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

And assign it to the DataGrid: CellStyle="{StaticResource DataGridCellStyle}". In this way all your cells will have content centered.

EDIT: The above code is from one of my projects and also contains the code to remove grid lines in the DataGrid. You can get them back by changing Grid to Border in the template. Like this:

<Setter Property="Template">
    <Setter.Value>
        <ControlTemplate TargetType="{x:Type DataGridCell}">
            <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
                <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
            </Border>
        </ControlTemplate>
    </Setter.Value>
</Setter>

回答2:

Create a style as a static resource

<UserControl.Resources>
    <Style x:Key="verticalCenter" TargetType="{x:Type TextBlock}">
        <Setter Property="VerticalAlignment" Value="Center" />
    </Style>
</UserControl.Resources>

Then you can assign it to the ElementStyle of the DataGridTextColumn

<DataGridTextColumn ElementStyle="{StaticResource verticalCenter}" />

回答3:

Just use the DataGridTemplateColumn:

<DataGridTemplateColumn Width="SizeToCells">
    <DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
            <TextBlock HorizontalAlignment="Center" Width="100" Height="20"/>
        </DataTemplate>
    </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>

来源：https://stackoverflow.com/questions/20352231/create-style-for-textblock-in-datagridtextcolumn

标签

wpf

datagrid

styles

datagridtextcolumn