Improving the Performance of the DiagramWhile performing interaction in the diagram containing lots of nodes (for example: 100 Nodes and 100 Connectors) there will be a dispute in its performance. To overcome the dispute we need to Pause and Resume some of the services which utilizes maximum resources which will be a reason for the performance dispute. We have listed the services which results maximum resource utilization:
LinkManager: LinkManager holds the information about the connected Nodes in the diagram. HistoryManager: HistoryManager holds the history of the diagram like adding a node and deleting a node. BridgeManager: BridgeManager holds the information’s about bridging which is enabled when two connectors intersects each other. EventSink: EventSink holds information about the events which are registered in the control.
Pause the Service: The below code snippet is used to pause the service. [C#] //Pause the services
void m_diagram_MouseDown(object sender, MouseEventArgs e)
{
this.m_diagram.Model.LinkManager.Pause();
this.m_diagram.EventSink.Pause();
this.m_diagram.Model.EventSink.Pause();
this.m_diagram.Model.BridgeManager.Pause();
this.m_diagram.Model.HistoryManager.Pause();
}
[VB] Private Sub m_diagram_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Me.m_diagram.Model.LinkManager.Pause() Me.m_diagram.EventSink.Pause() Me.m_diagram.Model.EventSink.Pause() Me.m_diagram.Model.BridgeManager.Pause() Me.m_diagram.Model.HistoryManager.Pause() End Sub
Resuming the Service: The below code snippet is used for resuming the service. [C#]
//Resuming the services
void m_diagram_MouseUp(object sender, MouseEventArgs e)
{
this.m_diagram.Model.LinkManager.Resume();
this.m_diagram.Model.HistoryManager.Resume();
this.m_diagram.Model.BridgeManager.Resume();
this.m_diagram.Model.EventSink.Resume();
this.m_diagram.EventSink.Resume();
}
[VB] 'Resuming the services Private Sub m_diagram_MouseUp(ByVal sender As Object, ByVal e As MouseEventArgs) Me.m_diagram.Model.LinkManager.Resume() Me.m_diagram.Model.HistoryManager.Resume() Me.m_diagram.Model.BridgeManager.Resume() Me.m_diagram.Model.EventSink.Resume() Me.m_diagram.EventSink.Resume() End Sub
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