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Is it possible to lock individual nodes/connectors (instead of the entire layer)?

Hello Syncfusion Team,

Per the documentation, I know it is possible to lock an entire layer of a diagramComponent.

However I just wanted to check whether individual nodes/connectors could be locked without utilizing layers. 

If not, I plan to create a new layer simply to hold "locked" objects. 

Just wondering if there is a simpler way? 

PS: Something like a diagramComponent.nodes[0].lock() method would have been ideal.

Thanks,
Mithun

3 Replies

SG Shyam G Syncfusion Team December 18, 2019 01:56 AM

Hi Mithun, 

Please set NodeConstraints None to lock an individual node and NodeConstraints Default to unlock an individual  node. Similarly, you can set ConnectorConstraints None and Default to lock and unlock a connector Please refer to a code example, sample and help documentation below. 

Code example: 
  lockObject() { 
     let node: NodeModel = this.diagram.getObject("firstNode"); 
     //disable node interaction 
     node.constraints = NodeConstraints.None; 
  

   unlockObject() { 
      let node: NodeModel = this.diagram.getObject("firstNode"); 
      //enable node interaction 
     node.constraints = NodeConstraints.Default; 
  





Regards, 
Shyam G 



MI Mithun December 18, 2019 02:18 AM

Thanks Shyam! This is exactly what I was looking for. 

Thanks,
- Mithun


SG Shyam G Syncfusion Team December 18, 2019 02:26 AM

Hi Mithun, 
Thanks for your update. 
Regards, 
Shyam G 


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