Style rows in a datagrid

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How do you style a row in a datagrid bound to an itemssource?

Posted 13-Jul-11 6:10am

User 7379439

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Pete O'Hanlon · Answer 1 · 2011-07-13T07:00:00

You can bind the RowStyle to a resource using as

XML

RowStyle="{DynamicResource MyDataGridRow}"

This would be implemented like this

XML

<Style x:Key="ClientSearchResultsViewDataGridRow" TargetType="{x:Type Custom:DataGridRow}">
  <Setter Property="Background" Value="{x:Null}"/>
  <Setter Property="SnapsToDevicePixels" Value="True"/>
  <Setter Property="Validation.ErrorTemplate" Value="{x:Null}"/>
  <Setter Property="ValidationErrorTemplate">
    <Setter.Value>
      <ControlTemplate>
        <TextBlock
          Margin="2,0,0,0"
          VerticalAlignment="Center"
          Foreground="Red"
          Text="!">
          <Run Text="!"/>
        </TextBlock>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type Custom:DataGridRow}">
        <Border
          x:Name="DGR_Border"
          Background="#FF141F29"
          BorderBrush="{TemplateBinding BorderBrush}"
          BorderThickness="{TemplateBinding BorderThickness}"
          SnapsToDevicePixels="True">
          <Custom:SelectiveScrollingGrid>
            <Custom:SelectiveScrollingGrid.ColumnDefinitions>
              <ColumnDefinition Width="0"/>
              <ColumnDefinition Width="*"/>
            </Custom:SelectiveScrollingGrid.ColumnDefinitions>
            <Custom:SelectiveScrollingGrid.RowDefinitions>
              <RowDefinition Height="*"/>
              <RowDefinition Height="Auto"/>
            </Custom:SelectiveScrollingGrid.RowDefinitions>
            <Custom:DataGridCellsPresenter
              Grid.Column="1"
              Background="#FF141F29"
              ItemsPanel="{TemplateBinding ItemsPanel}"
              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
            <Custom:DataGridDetailsPresenter Grid.Column="1" Grid.Row="1" Visibility="{TemplateBinding DetailsVisibility}">
              <Custom:SelectiveScrollingGrid.SelectiveScrollingOrientation>
                <Binding Path="AreRowDetailsFrozen" RelativeSource="{RelativeSource FindAncestor, AncestorLevel=1, AncestorType={x:Type Custom:DataGrid}}">
                  <Binding.ConverterParameter>
                    <Custom:SelectiveScrollingOrientation>Vertical
                    </Custom:SelectiveScrollingOrientation>
                  </Binding.ConverterParameter>
                </Binding>
              </Custom:SelectiveScrollingGrid.SelectiveScrollingOrientation>
            </Custom:DataGridDetailsPresenter>
            <Custom:DataGridRowHeader Grid.RowSpan="2" Custom:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical">
              <Custom:DataGridRowHeader.Visibility>
                <Binding Path="HeadersVisibility" RelativeSource="{RelativeSource FindAncestor, AncestorLevel=1, AncestorType={x:Type Custom:DataGrid}}">
                  <Binding.ConverterParameter>
                    <Custom:DataGridHeadersVisibility>Row
                    </Custom:DataGridHeadersVisibility>
                  </Binding.ConverterParameter>
                </Binding>
              </Custom:DataGridRowHeader.Visibility>
            </Custom:DataGridRowHeader>
          </Custom:SelectiveScrollingGrid>
        </Border>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

And that's it - a restyled DataRow.

Sergey Alexandrovich Kryukov · Answer 2 · 2011-07-13T06:57:00

Rows? What would it mean? You can customize the styles for columns; this is clear, but rows, especially with data binding to ItemSource… It means that one line will be one style and next line in another, how's that? What should make style of the different rows different, as the content of the row is defined by the data, and the pure data cannot have "style"? Columns are different, because a column in face represents meta-data or the data.

I can only suggest you use grouping. In this way, the rows could be additionally segregated by groups, and you could attribute a different group style to each group.

For a sample, look at this tutorial: http://www.wpftutorial.net/DataGrid.html[^]. Look at the section "Grouping" and its XAML sample, pay attention at DataGrid.GroupStyle.

—SA

Style rows in a datagrid

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