DiagramControl.QueryItemDrawAction Event
In This Article
Fires repeatedly as the end-user hovers over the diagram canvas while a drawing tool (Rectangle, Ellipse, Right Triangle or Hexagon) is selected.
Namespace: DevExpress.Xpf.Diagram
Assembly: DevExpress.Xpf.Diagram.v24.2.dll
NuGet Package: DevExpress.Wpf.Diagram
#Declaration
public event EventHandler<DiagramQueryItemDrawActionEventArgs> QueryItemDrawAction
#Event Data
The QueryItemDrawAction event's data class is DiagramQueryItemDrawActionEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Allow | Specifies whether the end-user can use the selected drawing tool. |
Diagram |
Returns the mouse pointer position within the diagram control. |
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 Routed |
Original |
Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class.
Inherited from Routed |
Routed |
Gets or sets the Routed |
Source |
Gets or sets a reference to the object that raised the event.
Inherited from Routed |
Tool | Returns the drawing tool that the end-user is attempting to use. |
The event data class exposes the following methods:
Method | Description |
---|---|
Invoke |
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 Routed |
On |
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 Routed |
#Remarks
The Allow property specifies whether the end-user can use the selected drawing tool. The Tool property returns the drawing tool that the end-user is attempting to use.
See Also