Required Field?

[Kivak Wolf]

Hi,

Could someone give me a quick review of how to use the required field
Validator? I'm completely at a loss, and MSDN does not help one bit. =/
Basically all I want done is to make sure that the user enters some
text into a field called "txbName" and when they click on the submit
button, if they have not entered anything into the field, a Required
Field Validator will say "Invalid Name".

Thanks,
Kivak Wolf

 

[Curt_C [MVP]]

Hi,

Could someone give me a quick review of how to use the required field
Validator? I'm completely at a loss, and MSDN does not help one bit. =/
Basically all I want done is to make sure that the user enters some
text into a field called "txbName" and when they click on the submit
button, if they have not entered anything into the field, a Required
Field Validator will say "Invalid Name".

Thanks,
Kivak Wolf

- Toss the validator on the page.
- Assign it's control to validate to your txtBox
- Give the validator an error messsage.
- I like to put a Validation Summary control on the page to centralize
the messages.
- compile, run.

 

[Grant Merwitz]

as simple as this:


<asp:requiredfieldvalidator id="ReqValtxbName" runat="server"
EnableClientScript="True" Display="Dynamic" ControlToValidate="txbName"
ErrorMessage="Invalid Name"></asp:requiredfieldvalidator>

 

[Peter Blum]

While I agree with the other answers, there is one more step. Always setup
server side validation because you cannot assume all browsers visiting your
site will run the client-side javascript supplied by Microsoft. In fact,
only IE and IE/Mac support their javascript in ASP.NET 1.x.

I've put together an article to educate users on validation. It discusses
setting up server side validation with examples and issues with client-side
validation. www.aspalliance.com/699.

--- Peter Blum
www.PeterBlum.com
Email: (e-mail address removed)
Creator of "Professional Validation And More" at
http://www.peterblum.com/vam/home.aspx