need help!! please.. :'( Different User Accessing Different Form in C#

foreach (DataRow dr in ds.Tables[0].Rows)
                 {
                     if (dr["user"] == textBox1.Text) //right USER!!!
                     {
                         if (dr["password"] = textBox2.Text) //also password is right
                             return true;
                            

Form3 fm3 = new Form3();
    fm3.Show(); // i need to add this? is it ok?

                         else
                             return false; //wrong password
                     }
                 }