$.ajax () invokes the method in. cs to implement an AJAX operation example

First, CS code (returns a string that must be a static method and identifies WebMethod )

<summary>

Get History table

</summary>

<param name= "Preceptuid" ></param>

<returns></returns>

[system.web.services.webmethod]//1, this namespace is critical and must indicate

public static string Getcommentlist (String datalocator)//2, Static is essential

{

System.Text.StringBuilder sb = new System.Text.StringBuilder ();

Entityset<workitem> WorkItems;

if (string. IsNullOrEmpty (Datalocator))

{

return null;

}

Else

{

WorkItems = new Workflowbll (). Getcommentinout (Datalocator);

for (int i = 0; i < Workitems.count; i++)

{

Sb. Append ("<div>");

WorkItem WorkItem = workitems[i];

Process step Information

Sb. Append ("<font style= ' color: #f00; ' ><b> "+ Workitem.alias +" </b></font>&nbsp; ");

Handling people Information

Sb. Append ("" ");

if ((Workitem.assigneeid! = null) &&

(Workitem.assigneeid! = guid.empty) &&

(Workitem.partname! = workitem.assigneename))

{

Sb. Append (String. Format ("{0} ({1})", Workitem.assigneename, Workitem.partname));

}

Else

{

Sb. Append (Workitem.partname);

}

Sb. Append ("&nbsp;");

if ((Workitem.assigneeid! = null) &&

(Workitem.assigneeid! = Guid.Empty))

{

Sb. Append (Workitem.assigneedeptname);

}

Else

{

Sb. Append (Workitem.partdeptname);

}

Sb. Append ("&nbsp;");

if ((Workitem.assigneeid! = null) &&

(Workitem.assigneeid! = Guid.Empty))

{

Sb. Append (Workitem.assigneerank);

}

Else

{

Sb. Append (Workitem.partrank);

}

Sb. Append ("<br/>");

Time Information

if (workitem.finishtime! = NULL && WorkItem.FinishTime.Value! = DateTime.Parse ("2100-12-31 23:59:59"))

{

Sb. Append (workItem.FinishTime.Value.ToString ("yyyy mm DD Day hh:mm"));

}

else if (workitem.readtime! = null)

{

Sb. Append (workItem.ReadTime.Value.ToString ("yyyy mm DD Day hh:mm"));

}

Else

{

Sb. Append (workItem.ReceTime.Value.ToString ("yyyy mm DD Day hh:mm"));

}

Sb. Append ("<br/>");

Handling Opinions

Sb. Append (workitem.partcomment);

Sb. Append ("<br/>");

Sb. Append ("<br/>");

Sb. Append ("</div>");

}

}

Sb. Append ("<a name= ' #anchorTO ' ></a>");

Return SB. ToString ();

}

Second, HTML Code (note the format, use RESULT.D gets the value returned by the method)

$.ajax ({

Type: ' POST ',

async:false,// If this property is not set, the requested data will probably not be up-to-date but the last requested data

ContentType: ' Application/json ',

URL: ' Todolist.aspx/getcommentlist ',

DataType: ' json ',// This code format is basically fixed

Data: ' {' datalocator ': ' + data_locator + ' '} ',// 1, note the format of the parameter passed in (quotation marks)

Error:function (Err) {

$menuDiv. HTML (' Error, error message: ' + err + ', please try again! ');

},

Success:function (Result) {

$menuDiv. HTML (RESULT.D);//2, using result.d to get The data returned by the CS method

window.location = "#anchorTO";

}

});

$.ajax () invokes the method in. cs to implement an AJAX operation example