Question

My application is in ASP.NET 2.0 with C#. I have a regular expression validator with the regular expression ^[0-9]*(\\,)?[0-9]?[0-9]?$, now my client don’t want this validation at client side but on button click i.e. Server Side.

EX: I have to check the value of txtPrice textbox

Please let me know how can I put this regular expression validation on server side.

Thanks in advance.

Answer 1

You can use a CustomValidator which can link to a server side event:

<asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="CustomValidator" OnServerValidate="CustomValidator1_Validate"></asp:CustomValidator>

Then server side you can validate input

protected void CustomValidator1_Validate (object source, ServerValidateEventArgs argss)
{}

Remember to wrap your submit button click with

if(IsValid) {}

To ensure all validators are respected