On hover of nodes can we have icons above node which supports few other functionalities like edit and delete.

[Sudhanshu Jain]

Hi,

On hover of nodes can we have icons above node which supports few other functionalities like edit and delete?

Regards,

Sudhanshu

[Shyam G]

Hi Sudhanshu, 

 

When we mouse hover on nodes, the diagram mouseOver event gets triggered. In this event, you can create an icon with your own custom logic. 

 

Code example: 

  <DiagramComponent 

         id="diagram"     

       mouseOver={(args: IMouseEventArgs) => { 

        // do your own logic 

    }}/> 

 

 

Help documentation: https://ej2.syncfusion.com/react/documentation/api/diagram/#mouseover 

 

Regards, 

Shyam G 

[Sudhanshu Jain]

Hi Shyam,

I have used userhandle for this issue but is there a way to set visibility of this userhandle to false on drag of the shapes from symbol palette. 

I require the userhandle to be visible only on selection of shapes in canvas. In rest of the time like drag drop of shapes from symbol palette the userhandle should not be visible.

Please let me know on same.

Thanks

[Shyam G]

Hi Sudhanshu, 

 

We have created a sample in which we have shown user handle in selectionChange event and hidden it in the positionChange and collectionChange event. So, the user handle will be visible only when you select a node in the diagram. 

 

Code example: 

<DiagramComponent 

collectionChange={(args) => { 

                showHideUserhandles(false); 

              }} 

              selectionChange={(args) => { 

                showHideUserhandles(true); 

              }} 

              positionChange={(args) => { 

                showHideUserhandles(false); 

              }}/> 

 

function showHideUserhandles(visiblity) { 

  // Iterate an handles 

  for (let i = 0; i < diagramInstance.selectedItems.userHandles.length; i++) { 

    let userHandle = diagramInstance.selectedItems.userHandles[i]; 

    //show/hide the userhandle 

    userHandle.visible = visiblity; 

  } 

}  

 

Sample: https://stackblitz.com/edit/react-1nafi2-ubxhoz?file=index.js 

Regards, 

Shyam G