DataGridColumn::DisplayIndex Property
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Gets or sets the display position of the column relative to the other columns in the DataGrid.
Namespace: System.Windows.Controls
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
<object DisplayIndex="int" .../>
Property Value
Type: System::Int32The zero-based position of the column, as it is displayed in the associated DataGrid. The registered default is -1. For information about what can influence the value, see DependencyProperty.
The DisplayIndex property has a default value of -1 before it is added to the DataGrid::Columns collection. This value is updated when the column is added to the DataGrid.
The DataGrid requires that the DisplayIndex property of each column must be a unique integer from 0 to the Count of Columns -1. Therefore, when the DisplayIndex of one column changes, the change typically causes the DisplayIndex of other columns to also change.
The restrictions on the DisplayIndex value are enforced by a ValidateValueCallback mechanism. If you attempt to set a value that is not valid, a run-time exception is thrown.
When the value of the DisplayIndex property is changed, the DataGrid::ColumnDisplayIndexChanged event is raised.
Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
