Hello Jitendra,
The reason you experience this behavior is because your view is not bounded to any Data Set in the model.
You can see that the Data Set field is not defined and there's a small warning icon next to it.
In order to bind a Data Set to your view you need to select the View root control by either clicking the canvas several times or via the outline - then the Data Set field will became editable.
Best Regards,
Meir.
Michal Keidar - thanks for bringing this up!