OnClick vs OnClientClick for an asp:CheckBox?

Question

Does anyone know why a client-side javascript handler for asp:CheckBox needs to be an OnClick=\"\" attribute rather than an OnClientClick=\"\" attribute, as for asp:Button?<

Answer 1

I was cleaning up warnings and messages and see that VS does warn about it: Validation (ASP.Net): Attribute 'OnClick' is not a valid attribute of element 'CheckBox'. Use the html input control to specify a client side handler and then you won't get the extra span tag and the two elements.