How to validate input?

[Ming Luo]

Hi all: I need a textbox which can only be inputed a 6 digit number. How can I do that please? Thanks in advance!!! Asura

[Dinuj Nath]

Use regular expression validation control. http://samples.gotdotnet.com/quickstart/aspplus/doc/webvalidation.aspx[^] http://aspnet101.com/aspnet101/tutorials.aspx?id=11[^]

[gyokusei]

1. set MaxLength property of that textbox to 6 2. drag a RegularExpressionValidator to .aspx page 3. set ControlToValidate property to the id of that textbox. 4. enter an expression to ValidationExpression property like this: (\d){6}