ColumnBase.GetHeaderPresenterType(DependencyObject) Method

Gets the value of the ColumnBase.HeaderPresenterType attached property for a specified DependencyObject.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v23.2.Core.dll

NuGet Package: DevExpress.Wpf.Grid.Core

Declaration

C#

public static HeaderPresenterType GetHeaderPresenterType(
    DependencyObject element
)

VB.NET

Public Shared Function GetHeaderPresenterType(
    element As DependencyObject
) As HeaderPresenterType

Parameters

Name	Type	Description
element	DependencyObject	The element from which the property value is read.

Returns

Type	Description
HeaderPresenterType	The ColumnBase.HeaderPresenterType property value for the element.

Example

This example adds the Click button to the Id column’s header when it is displayed in the Column Chooser.

XAML

<Window.Resources>
    <DataTemplate x:Key="columnChooserTemplate">
        <StackPanel Orientation="Horizontal">
            <TextBlock Text="{Binding}"/>
            <Button Content="Click" Margin="5,0,0,0"/>
        </StackPanel>
    </DataTemplate>

    <local:HeaderTemplateSelector x:Key="headerTemplateSelector" 
                                  ColumnChooserTemplate="{StaticResource columnChooserTemplate}"/>
</Window.Resources>

<dxg:GridControl x:Name="grid" AutoGenerateColumns="AddNew">
    <dxg:GridControl.View>
        <dxg:TableView x:Name="view" ColumnHeaderTemplateSelector="{StaticResource headerTemplateSelector}"/>
    </dxg:GridControl.View>
</dxg:GridControl>

C#

public class HeaderTemplateSelector : DataTemplateSelector {
    public DataTemplate ColumnChooserTemplate { get; set; }
    public override DataTemplate SelectTemplate(object item, DependencyObject container) {
        if (ColumnBase.GetHeaderPresenterType(container) == HeaderPresenterType.ColumnChooser && (string)item == nameof(Item.Id))
            return ColumnChooserTemplate;
        return base.SelectTemplate(item, container);
    }
}

VB.NET

Public Class HeaderTemplateSelector
    Inherits DataTemplateSelector

    Public Property ColumnChooserTemplate As DataTemplate

    Public Overrides Function SelectTemplate(ByVal item As Object, ByVal container As DependencyObject) As DataTemplate
        If ColumnBase.GetHeaderPresenterType(container) = HeaderPresenterType.ColumnChooser AndAlso Equals(CStr(item), NameOf(WPFGrid_ColumnChooser.Item.Id)) Then Return ColumnChooserTemplate
        Return MyBase.SelectTemplate(item, container)
    End Function
End Class

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GetHeaderPresenterType(DependencyObject) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

wpf-data-grid-custom-content-for-column-chooser-headers/CS/WPFGrid_ColumnChooser/MainWindow.xaml.cs#L26

public override DataTemplate SelectTemplate(object item, DependencyObject container) {
    if (ColumnBase.GetHeaderPresenterType(container) == HeaderPresenterType.ColumnChooser && (string)item == nameof(Item.Id))
        return ColumnChooserTemplate;

VB.NET

wpf-data-grid-custom-content-for-column-chooser-headers/VB/WPFGrid_ColumnChooser/MainWindow.xaml.vb#L36

Public Overrides Function SelectTemplate(ByVal item As Object, ByVal container As DependencyObject) As DataTemplate
    If ColumnBase.GetHeaderPresenterType(container) = HeaderPresenterType.ColumnChooser AndAlso Equals(CStr(item), NameOf(WPFGrid_ColumnChooser.Item.Id)) Then Return ColumnChooserTemplate
    Return MyBase.SelectTemplate(item, container)