DataSource Controls :: Update Command Is Not Working?

Jan 17, 2010

given below is the simple update string am using to update my database...

string q = "update register set fname='" + TextBox1.Text +
"',lname='" + TextBox2.Text +
"',gender='" + gender +
"',edu='" + TextBox3.Text +
"' where username='"+check +"'";
SqlCommand cmd =
SqlCommand(q, cn);

but it is not working...database is not getting updated...why?

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