Button Click Event

hi,
I've a form through which user can save the values into database.Form contains name textbox and save button.in the button click event i'm checking that the name in the textbox is already existed or not.if that name is already exist in the database then it'll restrict the saving.The following is the code.

string OrgExist = OrganizationController.get_Organization_Exitt(txtName.Text.ToString().Trim());                     if (OrgExist == "")                  &nb ...