Hi Chad,
Please set NodeConstraints as AllowDrop in setNodeTemplate function which shows the red highlighter, when we drag the node and mouse hover on the another node. please refer to a below code example.
Code example:
@Html.EJS().Diagram("diagram").Width("100%").Height("500px"). SetNodeTemplate("setNodeTemplate").Render()
function setNodeTemplate(obj, diagram) {
//AllowDrop Constraints
obj.constraints = ej.diagrams.NodeConstraints.Default | ej.diagrams.NodeConstraints.AllowDrop;
}
Regards,
Shyam G