Comparing Data

This one compares data in one field to another field or to a constant (or a Data Type). It has several options which I will cover now.

• Instead of ControltoCompare you can use ValuetoCompare if you want to use a constant value.
• Operators can be one of the following:
  • DataTypeCheck
  • Equal
  • GreaterThan
  • GreaterThanEqual
  • LessThan
  • LessThanEqual
  • NotEqual
• The Type property can be one of the following:
  • Currency
  • Date
  • Double
  • String
  • Integer

Here is the example:

First Name:<asp:textbox id="FName2" runat="server" />Last Name: <asp:TextBox id="LName2" runat="server" /><p> <asp:CompareValidator runat="Server" ControltoValidate="FName2" ControltoCompare="LName2" Type="String" Operator="NotEqual" ErrorMessage="Your First Name can't be your last name as well!" />

This makes sure that your first name isn't your last name (don't complain if your first name is also your last name, this is just an example!).