RowValidationErrorTemplate as a static resources

Question

hi ,i have:

 <DataGrid.RowValidationErrorTemplate>
                <ControlTemplate>
                    <Grid Margin="0,-2,0,-2"
                              ToolTip="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGridRow}},
                                                Path=(Validation.Errors)[0].ErrorContent}">
                        <Ellipse StrokeThickness="0" 
                                     Fill="Red" 
                                     Width="{TemplateBinding FontSize}" 
                                     Height="{TemplateBinding FontSize}" />
                        <TextBlock Text="!" 
                                       FontSize="{TemplateBinding FontSize}" 
                                       FontWeight="Bold" 
                                       Foreground="White" 
                                       HorizontalAlignment="Center"  />
                    </Grid>
                </ControlTemplate>
            </DataGrid.RowValidationErrorTemplate>


 

i have many datagrid controls in the same project and i want to share this template throught app resources
to use it like

 <DataGrid 
                  RowValidationErrorTemplate="{StaticResource template1}" >

Answer 1

Hi,

Welcome to our Microsoft Q&A platform!

You can put the ControlTemplate inside the Window.Resources

    <Window.Resources>
        <ControlTemplate x:Key="template1">
            <Grid Margin="0,-2,0,-2"
                               ToolTip="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGridRow}},
                                                 Path=(Validation.Errors)[0].ErrorContent}">
                <Ellipse StrokeThickness="0" 
                                      Fill="Red" 
                                      Width="{TemplateBinding FontSize}" 
                                      Height="{TemplateBinding FontSize}" />
                <TextBlock Text="!" 
                                        FontSize="{TemplateBinding FontSize}" 
                                        FontWeight="Bold" 
                                        Foreground="White" 
                                        HorizontalAlignment="Center"  />
            </Grid>
        </ControlTemplate>
    </Window.Resources>
    <Grid >
        <DataGrid RowValidationErrorTemplate="{StaticResource template1}" >

        </DataGrid>
    </Grid>

Thanks.

Answer 2

Hi, include your ControlTemplate in Application.xaml for app-wide using

<Application x:Class="Application"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:WpfApp1"
    StartupUri="Window1.xaml">
  <Application.Resources>
    <ControlTemplate x:Key="template1">
      <Grid Margin="0,-2,0,-2"
                                ToolTip="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGridRow}},
                                                  Path=(Validation.Errors)[0].ErrorContent}">
        <Ellipse StrokeThickness="0" 
                                       Fill="Red" 
                                       Width="{TemplateBinding FontSize}" 
                                       Height="{TemplateBinding FontSize}" />
        <TextBlock Text="!" 
                                         FontSize="{TemplateBinding FontSize}" 
                                         FontWeight="Bold" 
                                         Foreground="White" 
                                         HorizontalAlignment="Center"  />
      </Grid>
    </ControlTemplate>
  </Application.Resources>
</Application>