Question Page methods and documentation

[zoller]

Recently I started messing with page methods and after a lot of research (google) I think I've found a way to implement this which requires the least amount of code.

Code Behind

[COLOR=#0000ff]Protected[/COLOR] [COLOR=#0000ff]Shared[/COLOR] _Value [COLOR=#0000ff]As[/COLOR] [COLOR=#6f002f]String[/COLOR]
[COLOR=#0000ff]Protected[/COLOR] [COLOR=#0000ff]Shared[/COLOR] [COLOR=#0000ff]Property[/COLOR] Value() [COLOR=#0000ff]As[/COLOR] [COLOR=#6f002f]String[/COLOR]
    [COLOR=#0000ff]Get[/COLOR]
        [COLOR=#0000ff]Return[/COLOR] _Value
    [COLOR=#0000ff]End[/COLOR] [COLOR=#0000ff]Get[/COLOR]
    [COLOR=#0000ff]Set[/COLOR]
        _Value = value
    [COLOR=#0000ff]End[/COLOR] [COLOR=#0000ff]Set[/COLOR]
[COLOR=#0000ff]End[/COLOR] [COLOR=#0000ff]Property[/COLOR]

<WebMethod()> _
[COLOR=#0000ff]Public[/COLOR] [COLOR=#0000ff]Shared[/COLOR] [COLOR=#0000ff]Function[/COLOR] GetValue() [COLOR=#0000ff]As[/COLOR] [COLOR=#6f002f]String[/COLOR]
    [COLOR=#0000ff]If[/COLOR] [COLOR=#8515ea]Not[/COLOR] [COLOR=#6f002f]String[/COLOR].IsNullOrEmpty(_Value) [COLOR=#0000ff]Then[/COLOR]
        [COLOR=#0000ff]Return[/COLOR] _Value
    [COLOR=#0000ff]End[/COLOR] [COLOR=#0000ff]If[/COLOR]
    [COLOR=#0000ff]Return[/COLOR] "Value is empty!"
[COLOR=#0000ff]End[/COLOR] [COLOR=#0000ff]Function[/COLOR]

<WebMethod()> _
[COLOR=#0000ff]Public[/COLOR] [COLOR=#0000ff]Shared[/COLOR] [COLOR=#0000ff]Sub[/COLOR] SetValue([COLOR=#0000ff]ByVal[/COLOR] value [COLOR=#0000ff]As[/COLOR] [COLOR=#6f002f]String[/COLOR])
    _Value = value
[COLOR=#0000ff]End[/COLOR] [COLOR=#0000ff]Sub[/COLOR]

Javascript

[COLOR=#008000]// This is only required when using cookieless session state[/COLOR]
PageMethods.set_path([COLOR=#a0522d]'PageMethods.aspx'[/COLOR]);

[COLOR=#008000]// Get Method[/COLOR]
PageMethods.GetValue([COLOR=#0000ff]function[/COLOR] (response) {
            alert(response);
        }, onFail);

[COLOR=#008000]// Set Method[/COLOR]
PageMethods.SetValue([COLOR=#a0522d]'value here'[/COLOR], [COLOR=#0000ff]null[/COLOR], onFail);

[COLOR=#0000ff]function[/COLOR] onFail() {
    alert([COLOR=#a0522d]'Failed to call web method.'[/COLOR]);
}

So, regarding the javascript PageMethods function - I stumbled across this on a developers blog and am wondering where can we find out what other javascript functions are available to us? for example I know there is a javascript function to run validation but my only way to find out is if someone else posts it.

Is there a reference with all the javascript functions provided by .NET ?

I only want to educate myself - so if anyone could point me in the right direction it would be greatly appreciated. Thanks

P.S. I'm not entirely sure if this is the right topic to post in - feel free to move it

 

[JohnH]

PageMethods is a generated Javascript proxy class derived from Sys.Net.WebServiceProxy class. You're only supposed to use it to call your own defined WebMethod methods.
What you're doing here is discussed in section "Calling Static Methods in an ASP.NET Web Page" in this article: Exposing Web Services to Client Script