By using this query u'll get one Result.......from that u can check......userType

string st=Data["UserType"].ToString();
if(st=="Admin")
{//Open Admin Form}
else if(st=="User")
{// Open User Form}

Enum is better.

Yes Enum is Better.....approach....as Ramy says...

Thanks Buddies,i got it work by using enum and i also tried like saurab said.It also worked..Thank u very much in taking an effort to solve this issue.i am marking this post as solved....Check out my next post.....Ha Ha