DiagramEditOperation.ChangeConnection Property
In This Article
Identifies the ChangeConnection operation.
#Declaration
TypeScript
static readonly ChangeConnection: string
#Property Value
Type | Description |
---|---|
string | Returns “Change |
#Remarks
The operation parameter returns the ChangeConnection
value if the RequestEditOperation event fired for the following reasons:
- user is about to link or delink a connector from a shape,
- the ASPxDiagram control is updating a visibility state of a connection point.
Use the reason parameter to identify the reason why the event fired.
<dx:ASPxDiagram ID="Diagram" runat="server" Width="100%" Height="600px">
<ClientSideEvents RequestEditOperation="onRequestEditOperation" />
...
function onRequestEditOperation(s, e) {
if(e.operation === DiagramEditOperation.ChangeConnection) {
var shapeType = e.args.shape && e.args.shape.type;
if(shapeType === "root" && e.args.connectorPosition === "End") {
if(e.reason !== DiagramRequestEditOperationReason.CheckUIElementAvailability)
showWarning("The 'Development' shape cannot have an incoming connection.");
e.allowed = false;
}
}
...
}
The RequestEditOperation event does not fire for the ChangeConnection operation if the AllowChangeConnection property is set to false
.
See Also