Hi Mohammad kamil,
Greetings from Syncfusion.
Can we know the exact requirement on our SfNavigationDrawer, like where to set the corner radius? For whole SfNavigationDrawer or for the DrawerContentView?.
In addition to that we have SfBackDropPage control in our Syncfusion.
We suspect the above control may meet your requirement.
Please update us with more information about the exact requirement on SfNavigationDrawer. This will be helpful for us to provide better solution on this.