Today, I was working on customvalidate a custom control in wizard. I spent whole morning trying to get customvalidator working. But unfortunately, the custom control can’t be found by document.getElementById.
Anyway, I just put some code so next time you can have an example to create a custom validator.
in Web page:
<asp:CustomValidator ID=”rfvBillable” ClientValidationFunction=”ValidateTextbox” runat=”server” ErrorMessage=”Billable is required.”>*</asp:CustomValidator>
in code:
private void RegisterScipts()
{
if (!Page.ClientScript.IsStartupScriptRegistered(“Startup”))
{
// Form the script to be registered at client side.
String scriptString = “<script language=\”JavaScript\”> function ValidateTextbox(source, args) {“;
scriptString += “var value=document.getElementById(‘” + AdhocTimesheetDate.ClientID + “‘).value;”;
scriptString += “if(value.length >0 ){args.IsValid=true;}”;
scriptString += “else{args.IsValid=false;}”;
scriptString += “}<”;
scriptString += “/”;
scriptString += “script>”;
Page.ClientScript.RegisterStartupScript(typeof(Page), “Startup”, scriptString);
}
}
You need to Page.ClientScript.RegisterStartupScript in .Net 3.5
