Client side code for Save is not working , giving error "Access denied to save file".

    Here I want to allow user of my application to save flowchart as an image to their local system.

    What can be the good approach using NetDiagram to save image to clients machine.

    But , when I tried to save that flowchart image to server (Where my application is running)somehow "Tags" attached to boxes became null. So fc_SerializeTag started throwing exception