The ASP. Net role can be used to group Authenticated Users and treat each group as a unit,
To achieve unified management of multiple users,
Use Microsoft Ajax Library applicationsProgramRole Service
You can access the authenticated user role from the client script in a web application that supports Ajax,
The roleservice proxy class is used to complete this task,
This proxy class is automatically generated by the application role service and downloaded to the browser,
If there is a roleservice proxy class, that is, access the role service from the client JavaScript,
You must make the following settings,
First, you must ensure that your membership qualification data warehouse has been registered (aspnet_regsql.exe Registration)
Then you must ensure that you are using the forms authentication mode,
In addition, you must enable the role function in your application,
Finally, you must enable the roleservice function in Web. config,
Next we will introduce thisSYS. Services. roleserviceThis class
First, of course, it is the most important load method to introduce.
The complete method is named
SYS. Services. roleservice. Load (Loadcompletedcallback,
Loadfailedcallback, usercontext)
I will not explain the above parameters, that is, two callback functions,
What you need to explain this method is,
This load method loads the role of the authenticated user to the memory of the local client,
Then, you can use the roles attribute to access
The following describes the roles attributes,
SYS. Services. roleservice. Roles attributes
This attribute is used to obtain the role of the currently authenticated user,
Using get_roles () will get an array. When using the roles attribute,
You must first use the load method to load the role of the current user to the client memory,
Otherwise, the returned array is null.
Then there is the isuserinrole attribute.
It is used to check whether the authenticated user has a specified role,
SYS. Services. roleservice. get_isuserinrole (role );
If the authenticated user has a role specified by the role parameter,
True is returned; otherwise, false is returned.
This attribute is used in the same way as the SCO roles. You must load the role before using it,
Otherwise, false is always returned.
It also has the attributes path, timeout, defaultfailedcallback,
Defaultloadcompletedcallback, defasusucceededcallback,
Defaultusercontext and other attributes. I will not introduce them more, because of these attributes,
It is the same as calling Web service using JavaScript. If you cannot understand it,
Check msdn.
Here is the demo.
<% @ Page Language = "C #" %>
<HTML xmlns = "http://www.w3.org/1999/xhtml">
<Head runat = "server">
<Title> </title>
<Style type = "text/CSS">
. Style1
{
Width: 35%;
Border: 1px solid # 8000ff;
Height: pixel PX;
}
. Style3
{
Width: 62px;
Height: 33px;
}
. Style5
{
Width: 62px;
Height: 39px;
}
. Style6
{
Height: 39px;
}
. Style7
{
Height: 33px;
}
</Style>
<Script language = "JavaScript" type = "text/JavaScript">
Function btnlogin_onclick (){
VaR username = $ get ('<% = txtname. clientid %>'). value;
VaR userpwd = $ get ('<% = txtpwd. clientid %>'). value;
SYS. Services. authenticationservice. login ( Username, userpwd,
False, null, null,
Logincompletedcallback,
Loginfailedcallback, "Logon ");
}
Function Logincompletedcallback (Result, usercontext, methodname ){
If ( Result = true ){
Alert ("Logon successful !!! ");
SYS. Services. roleservice. Load ( Loadcompletedcallback,
Loadfailedcallback, "load role ");
}
Else {
Alert ("the user name or password is incorrect !!! ");
}
}
FunctionLoginfailedcallback(Error, usercontext, methodname ){
Alert ("exception information:" + error. get_message ());
}
Function Loadcompletedcallback (Result, usercontext, methodname ){
VaR lblmsg = $ get ('<% = lblmsg. clientid %> ');
VaR MSG = "";
MSG + = "whether the current user belongs to the superadmin role ---" +
SYS. Services. roleservice. isuserinrole ("Superadmin") + "<br/> ";
MSG + = "whether the current user belongs to the admin role ---" +
SYS. Services. roleservice. isuserinrole ("Admin") + "<br/> ";
MSG + = "whether the current user belongs to the user role ---" +
SYS. Services. roleservice. isuserinrole ("User") + "<br/> ";
MSG + = "<HR/> ";
MSG + = "roles result: <br/>"
VaR rolearray = SYS. Services. roleservice. get_roles ();
For (VAR I = 0; I <rolearray. length; I ++ ){
MSG + = rolearray [I] + "<br/> ";
}
Lblmsg. innerhtml = MSG;
}
Function Loadfailedcallback (Error, usercontext, methodname ){
Alert ("exception information:" + error. get_message ());
}
</SCRIPT>
</Head>
<Body>
<Form ID = "form1" runat = "server">
<Asp: Scriptmanager Id =" Scriptmanager1 "Runat =" server ">
</ASP: scriptmanager>
<Div>
<Table class = "style1">
<Tr>
<TD class = "style3">
User Name
</TD>
<TD class = "style7">
<Asp: Textbox Id =" Txtname "Runat =" server ">
</ASP: textbox>
</TD>
</Tr>
<Tr>
<TD class = "style5">
Password
</TD>
<TD class = "style6">
<Asp: Textbox Id =" Txtpwd "Runat =" server"
Textmode = "password">
</ASP: textbox>
</TD>
</Tr>
<Tr>
<TD>
& Nbsp;
</TD>
<TD>
<Input id =" Btnlogin "Type =" button "value =" login"
Onclick = "Return btnlogin_onclick ()"/>
</TD>
</Tr>
</Table>
<Br/>
<Asp: Label id =" Lblmsg "Runat =" server "forecolor =" # ff0066 ">
</ASP: Label>
<Br/>
<Br/>
<Br/>
<Br/>
</Div>
</Form>
</Body>
</Html>
Let's take a look at the effect.
Log On With Xiaozhen in the superadmin role
Log On With Suha in the admin role.
The above is the entire demo and demo. You can refer toCodePartially completed on your own !!!
2010-2-
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