Specifies what to display in the header prefix area. Header prefix area is the area that is by default left of field labels, above the record selectors. Default is resolved to None.
The following code snippet sets HeaderPrefixAreaDisplayMode to display the field chooser button in the headers area. It also shows you how to hook into the FieldChooserOpening event to set properties on the FieldChooser that the data presenter will display when the user clicks the field chooser button.
Imports Infragistics.Windows
Imports Infragistics.Windows.Controls
Imports Infragistics.Windows.Editors
Imports Infragistics.Windows.DataPresenter
Imports Infragistics.Windows.DataPresenter.Events
Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
' FieldChooserButton option displays a button in the headers area where field labels
' are displayed, right above the record selectors. This button shows the FieldChooser.
_dataPresenter.FieldLayoutSettings.HeaderPrefixAreaDisplayMode = HeaderPrefixAreaDisplayMode.FieldChooserButton
' Ensure that record selectors are visible otherwise above property setting will not
' have any effect. Note that the record selectors are visible by default.
_dataPresenter.FieldLayoutSettings.RecordSelectorLocation = RecordSelectorLocation.LeftOfCellArea
End Sub
Private Sub Dp_FieldChooserOpening(ByVal sender As Object, ByVal e As FieldChooserOpeningEventArgs)
' Get the field chooser that's about to be displayed.
Dim fieldChooser As FieldChooser = e.FieldChooser
' Set some properties on it.
fieldChooser.FieldDisplayOrder = FieldChooserDisplayOrder.Alphabetical
fieldChooser.DisplayHiddenFieldsOnly = False
End Sub
using Infragistics.Windows;
using Infragistics.Windows.Controls;
using Infragistics.Windows.Editors;
using Infragistics.Windows.DataPresenter;
using Infragistics.Windows.DataPresenter.Events;
public void Window1_Loaded( object sender, RoutedEventArgs e )
{
// FieldChooserButton option displays a button in the headers area where field labels
// are displayed, right above the record selectors. This button shows the FieldChooser.
_dataPresenter.FieldLayoutSettings.HeaderPrefixAreaDisplayMode = HeaderPrefixAreaDisplayMode.FieldChooserButton;
// Ensure that record selectors are visible otherwise above property setting will not
// have any effect. Note that the record selectors are visible by default.
_dataPresenter.FieldLayoutSettings.RecordSelectorLocation = RecordSelectorLocation.LeftOfCellArea;
}
private void dp_FieldChooserOpening( object sender, FieldChooserOpeningEventArgs e )
{
// Get the field chooser that's about to be displayed.
FieldChooser fieldChooser = e.FieldChooser;
// Set some properties on it.
fieldChooser.FieldDisplayOrder = FieldChooserDisplayOrder.Alphabetical;
fieldChooser.DisplayHiddenFieldsOnly = false;
}
<igDP:XamDataGrid x:Name="_dataPresenter" Grid.Column="1" FieldChooserOpening="dp_FieldChooserOpening" >
<igDP:XamDataGrid.FieldLayoutSettings>
<igDP:FieldLayoutSettings HeaderPrefixAreaDisplayMode="FieldChooserButton" />
</igDP:XamDataGrid.FieldLayoutSettings>
</igDP:XamDataGrid>
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
