Custom Validator doesn't work

[Andrea]

Well,

I've tried to create a stupid custom validator to validate a checked checkbox.
Really simple, really stupid, but it's just for trying to do something better
than standard validator, that works great but has some limits.

Ok, this is what i've done (apart from the basic implementation that should
be done):

protected override void OnPreRender(Eve ntArgs e)
{
base.OnPreRende r(e);

if (RenderUplevel)
{
string script = "\r\n<scrip t language=\"java script\">\r\n" +
...............

to implement the script
and

protected override void AddAttributesTo Render(HtmlText Writer writer)
{
//writer.AddAttri bute("controlto validate", this.GetControl RenderID(Contro lToValidate));
base.AddAttribu tesToRender(wri ter);

if (this.RenderUpl evel)
{
String clientID = this.ClientID;

Page.ClientScri pt.RegisterExpa ndoAttribute(cl ientID, "evaluationfunc tion",
"IsCheckBoxRequ ired");

...............

to add the javascript elements to the javascript code rendered by the framework.

I've tried both Firefox and IE, on XP PRO nor on a Windows 2003. In both
case IE seems to works, but in firefox doesn't.
At least the client-script doesn't fire.

Infact checking in the source code the

ctl00_MainConte nt_Control.eval uationfunction = "JavascriptFunc tionName";

isn't there despite the RegisterExpando Attribute set it correctly. Using
the writer.AddAttri bute() in the AddAttributeToR ender doesn't work either.

I really don't know.

I'm exausted and upset. I wasted half day to understand the reason ...

Any help?

Thanks Andrea

[eguworks]

Hello Andrea,

Have you considered Firefox being the problem?
Perhaps checking the firefox forum or actually mailing mozilla about it
will clarify.
I myself have noticed all kinds of small differences when comparing IE
and firefox.

another solution might be using a validationContr ol from asp.net 2.0
or you can always do something like if checkbox1.check ed = true etc etc

Egu