DataGrid.RowHeaderStyle Property
Definition
Important
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Gets or sets the style applied to all row headers.
public:
property System::Windows::Style ^ RowHeaderStyle { System::Windows::Style ^ get(); void set(System::Windows::Style ^ value); };
public System.Windows.Style RowHeaderStyle { get; set; }
member this.RowHeaderStyle : System.Windows.Style with get, set
Public Property RowHeaderStyle As Style
Property Value
The style applied to all row headers in the DataGrid. The registered default is null
. For more information about what can influence the value, see DependencyProperty.
Examples
The following example shows how to display numbered rows in the row header by applying a binding with a value converter to the Content property of the DataGridRowHeader. The converter is created as a resource by mapping the namespace and creating an instance of the class. For more information, see Data Binding Overview.
<Window.Resources>
<local:ConvertItemToIndex x:Key="IndexConverter"/>
</Window.Resources>
<Grid>
<DataGrid Name="DG1" ItemsSource="{Binding}" CanUserAddRows="False" CanUserDeleteRows="False" >
<!--Bind the Content property of the RowHeaderStyle to the Converter to create numbered rows-->
<DataGrid.RowHeaderStyle>
<Style TargetType="{x:Type DataGridRowHeader}">
<Setter Property="Content" Value="{Binding Converter={StaticResource IndexConverter}}" />
</Style>
</DataGrid.RowHeaderStyle>
</DataGrid>
</Grid>
public class ConvertItemToIndex : IValueConverter
{
#region IValueConverter Members
//Convert the Item to an Index
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
try
{
//Get the CollectionView from the DataGrid that is using the converter
DataGrid dg = (DataGrid)Application.Current.MainWindow.FindName("DG1");
CollectionView cv = (CollectionView)dg.Items;
//Get the index of the item from the CollectionView
int rowindex = cv.IndexOf(value)+1;
return rowindex.ToString();
}
catch (Exception e)
{
throw new NotImplementedException(e.Message);
}
}
//One way binding, so ConvertBack is not implemented
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
#endregion
}
Public Class ConvertItemToIndex
Implements IValueConverter
Public Function Convert(value As Object, targetType As System.Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements System.Windows.Data.IValueConverter.Convert
Try
'Get the CollectionView from the DataGrid that is using the converter
Dim dg As DataGrid = DirectCast(Application.Current.MainWindow.FindName("DG1"), DataGrid)
Dim cv As CollectionView = DirectCast(dg.Items, CollectionView)
'Get the index of the item from the CollectionView
Dim rowindex As Integer = cv.IndexOf(value) + 1
Return rowindex.ToString()
Catch e As Exception
Throw New NotImplementedException(e.Message)
End Try
End Function
Public Function ConvertBack(value As Object, targetType As System.Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements System.Windows.Data.IValueConverter.ConvertBack
Throw New NotImplementedException()
End Function
End Class
Remarks
Apply a Style to update the visual appearance of all the row headers in the DataGrid. To define a Style for a row header, specify a TargetType of DataGridRowHeader.
You can also use the RowHeaderStyle property to update any property of DataGridRowHeader.
A Style can be applied to all row headers, or to an individual row header. To apply a Style to an individual header, set the DataGridRow.HeaderStyle property, which takes precedence over the DataGrid.RowHeaderStyle property.
Applies to
See also
Pripomienky
https://aka.ms/ContentUserFeedback.
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