/ *
Author: clarion li
Date: OCT.22, 2004 (My Nephew Is Two Months OLD)
Purpose:
Check User Login
Client Call Server's Method (in page or userControl)
* /
/ *
Client Function:
Function CallServerMethodskipClientValidate (MethodName, Methodparams)
{
Document.all ['__ methodname']. Value = methodname;
Document.all ['__ methodparams']. Value = methodparams;
Document.Forms [0] .submit ();
}
Function CallServerMethod (MethodName, Methodparams)
{
IF (TypeOf (Page_ClientValidate)! = 'undefined')
{
IF (! page_clientvalidate ()) return;
}
CallServerMethodskipclientValidate (MethodName, Methodparams);
}
Useage:
Method on Page:
"Alert" is the public method in this page
"Hello" is the method "alert" 'S Parameter
Method on UserControls:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
"<% = this.uniqueID%>" IS UserControls's UniqueID
"Wuc" is the method name in the userControl
"Hello" is the method "alert" 'S Parameter
* /
Using system;
Using system.Web.ui;
Namespace WebApp4
{
Public Class Basepage: PAGE
{
ServerMethodProxy SMP = NULL;
Protected Override Void OnNit (Eventargs E)
{
IF (! this.checkuser ())
{
THIS.FORCELOGIN ();
}
Base.onit (E);
SMP = New ServerMethodProxy (THIS);
}
Protected Virtual Bool Checkuser ()
{
Return True;
}
protected virtual void forcelogin ()
{
Response.Redirect (", true);
}
Protected Override Void OnLoad (Eventargs E) {
Base.onLoad (e);
IF (ISPostback)
{
Smp.handle ();
}
}
}
Public Class ServerMethodProxy: ipostbackeventhandler
{
Private system.Web.ui.page page;
Private const string constmethodname = "__methodname";
Private const string constmethodparams = "__methodparams";
Private string methodname = null;
Private string methodparameters = NULL;
Public ServerMethodProxy (System.Web.ui.page Page)
{
THIS.PAGE = Page;
THIS.REGISTERCLIENTScript ();
}
Public void handle () PUBLIC VOID HANDE ()
{
MethodName = this.page.Request.form [constmethodname];
IF (MethodName "" == "")
{
Return;
}
MethodParameters = this.page.Request.form [constmethodparams];
Try
{
System.Type T = this.page.gettype ();
While (T.BaseType! = NULL)
{
IF (t.fullname == "system.web.ui.page")
{
System.Reflection.fieldInfo Fi = T.Getfield ("_ RegisteredControlthatrequireraiseEvent", System.Reflection.BindingFlags.nonpublic | System.Reflection.BindingFlags.instance);
Fi.setValue (this.page, this);
Break;
}
T = T.BaseType;
}
}
Catch
{
InvokeServerMethod ();
}
}
Private void registerclientscript ()
{
this.page.registerhiddenfield (constmethodname, "");
this.page.registerhiddenfield (constmethodparams, ");
String script = @ "
