How to determine the node selection via programmatically or user interaction

In our Syncfusion® Angular Diagram, nodes can be selected either through user interaction or programmatically. To select nodes via user interaction, the user can simply click on the nodes. For programmatic selection, you can use a select method.

app.commponent.html

<ejs-diagram
       #diagram
       id="diagram"
       width="100%"
       height="1000px"
       [getNodeDefaults]="nodeDefaults"
       (created)="created()"
       [snapSettings]="snapSettings">
       <e-nodes>
         <e-node
           id="sdlc"
           [height]="100"
           [width]="100"
           [shape]="shapeType"
           [offsetX]="300"
           [offsetY]="250">
           <e-node-annotations>
             <e-node-annotation content="Node"> </e-node-annotation>
           </e-node-annotations>
         </e-node>
       </e-nodes>
</ejs-diagram> 

app.component.ts

public created(): void {
   this.diagram.select([this.diagram.nodes[0]]);
} 

Refer the below sample for reference

Sample: Click here~~~~

Conclusion

I hope you enjoyed learning about how to expand and collapse the symbol palette using external button in Angular Diagram.

You can refer to our Angular Diagram feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our Angular Diagram example to understand how to create and manipulate data.

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