DataControlBase.AutoGeneratedColumns Event

Occurs after the columns have been automatically generated.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v24.2.Core.dll

NuGet Package: DevExpress.Wpf.Grid.Core

Declaration

C#

public event RoutedEventHandler AutoGeneratedColumns

VB.NET

Public Event AutoGeneratedColumns As RoutedEventHandler

Event Data

The AutoGeneratedColumns event's data class is RoutedEventArgs. The following properties provide information specific to this event:

Property	Description
Handled	Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class.
RoutedEvent	Gets or sets the RoutedEvent associated with this RoutedEventArgs instance.
Source	Gets or sets a reference to the object that raised the event.

The event data class exposes the following methods:

Method	Description
InvokeEventHandler(Delegate, Object)	When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation.
OnSetSource(Object)	When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes.

Remarks

If the grid’s DataControlBase.AutoGenerateColumns option is enabled, binding the grid to a data source automatically generates columns for all data source properties. After all columns have been created and added to the GridControl.Columns collection, the grid fires the AutoGeneratedColumns event. Handle this event to specify column settings (e.g., assign column editors, hide individual columns, and so on).

The AutoGeneratedColumns event is not raised if the grid columns are explicitly specified (for instance, in the XAML file) and the DataControlBase.AutoGenerateColumns property is set to AutoGenerateColumnsMode.KeepOld or AutoGenerateColumnsMode.None.

View Example: Customize Automatically Generated Columns

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the AutoGeneratedColumns event.

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.

XAML

wpf-data-grid-customize-automatically-generated-columns/CS/E2019/Window1.xaml#L18

<Grid>
   <dxg:GridControl x:Name="grid" AutoGenerateColumns="AddNew" AutoGeneratedColumns="OnColumnsGenerated">
      <dxg:GridControl.View>