wpf-devexpress-dot-xpf-dot-grid-dot-tableview-1bb92911.md
Occurs when a user double-clicks a row.
Namespace : DevExpress.Xpf.Grid
Assembly : DevExpress.Xpf.Grid.v25.2.dll
NuGet Package : DevExpress.Wpf.Grid.Core
public event RowDoubleClickEventHandler RowDoubleClick
Public Event RowDoubleClick As RowDoubleClickEventHandler
The RowDoubleClick event's data class is RowDoubleClickEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| ChangedButton | Gets a mouse button that has been pressed twice. |
| Handled | Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs. |
| HitInfo | Gets or sets the information on a view element located under the mouse pointer. |
| OriginalSource | Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs. |
| RoutedEvent | Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs. |
| Source | Gets the View 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. Inherited from RoutedEventArgs. |
| 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. Inherited from RoutedEventArgs. |
The HitInfo property returns information about a view element that a user double-clicks. Refer to the following topic for more information: Hit Information.
If you want to maintain a clean MVVM pattern and process the row double-click operation in a View Model, create a command and bind it to the RowDoubleClickCommand property.
The following example demonstrates how to use the TableView.RowDoubleClick event to process double-clicks:
View Example: How to Handle Row Double-clicks
<dxg:GridControl x:Name="grid">
<!-- ... -->
<dxg:GridControl.View>
<dxg:TableView RowDoubleClick="OnRowDoubleClick"/>
</dxg:GridControl.View>
</dxg:GridControl>
void OnRowDoubleClick(object sender, RowDoubleClickEventArgs e) {
int rowHandle = e.HitInfo.RowHandle;
if(rowHandle == GridControl.InvalidRowHandle)
return;
if(grid.IsGroupRowHandle(rowHandle))
MessageBox.Show("A group row has been double clicked.", "Info");
else
MessageBox.Show("A data row has been double clicked.", "Info");
}
Private Sub OnRowDoubleClick(ByVal sender As Object, ByVal e As RowDoubleClickEventArgs)
Dim rowHandle As Integer = e.HitInfo.RowHandle
If rowHandle = DataControlBase.InvalidRowHandle Then Return
If Me.grid.IsGroupRowHandle(rowHandle) Then
MessageBox.Show("A group row has been double clicked.", "Info")
Else
MessageBox.Show("A data row has been double clicked.", "Info")
End If
End Sub
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the RowDoubleClick 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.
wpf-data-grid-handle-row-double-clicks/CS/RowDoubleClick_CodeBehind/MainWindow.xaml#L23
<dxg:GridControl.View>
<dxg:TableView RowDoubleClick="OnRowDoubleClick"/>
</dxg:GridControl.View>
#line 23 "..\..\..\MainWindow.xaml"
((DevExpress.Xpf.Grid.TableView)(target)).RowDoubleClick += new DevExpress.Xpf.Grid.RowDoubleClickEventHandler(this.OnRowDoubleClick);
#ExternalSource("..\..\MainWindow.xaml",23)
AddHandler CType(target,DevExpress.Xpf.Grid.TableView).RowDoubleClick, New DevExpress.Xpf.Grid.RowDoubleClickEventHandler(AddressOf Me.OnRowDoubleClick)
See Also