Best way to check minimum length for a textbox field

[Abhishek Srivastava]

Hello All,

Can I validate the minimum length of a field using any of the existing
validators?

I searched google on this subject and found people offering custom
controls for this.

However, for such a little thing it will be an overkill to bring in a
3rd party custom control. It will be great if I could use any of the
existing controls to check for minimum length.

Thanks for your help.

regards,
Abhishek.

[Dan]

How about this - it checks for 5+ alphanumeric chars:

<asp:TextBox id="txtUsername " runat="server" />

<asp:RegularExp ressionValidato r
id="RegularExpr essionValidator 1"
runat="server"
ErrorMessage="F ield not valid!"
ControlToValida te="txtUsername "
ValidationExpre ssion="[0-9a-zA-Z]{5,}" />

"Abhishek Srivastava" <ab************ *****@nospam.ne t> wrote in message
news:uB******** ******@tk2msftn gp13.phx.gbl...

Hello All,

Can I validate the minimum length of a field using any of the existing
validators?

I searched google on this subject and found people offering custom
controls for this.

However, for such a little thing it will be an overkill to bring in a
3rd party custom control. It will be great if I could use any of the
existing controls to check for minimum length.

Thanks for your help.

regards,
Abhishek.

[Curt_C [MVP]]

Custom Validator

private void yourValidator_S erverValidate(o bject source,
System.Web.UI.W ebControls.Serv erValidateEvent Args args)
{
if(this.yourTex tBox.Text.Lengt h == 0)
{
args.IsValid = false;
}

--
Curt Christianson
Owner/Lead Developer, DF-Software
www.Darkfalz.com
"Abhishek Srivastava" <ab************ *****@nospam.ne t> wrote in message
news:uB******** ******@tk2msftn gp13.phx.gbl...

Hello All,

Can I validate the minimum length of a field using any of the existing
validators?

I searched google on this subject and found people offering custom
controls for this.

However, for such a little thing it will be an overkill to bring in a
3rd party custom control. It will be great if I could use any of the
existing controls to check for minimum length.

Thanks for your help.

regards,
Abhishek.