Jquery + Asp. Net ajax small test

Last Update:2018-12-05 Source: Internet

Author: User

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I tried to use jquery's ajax, so I did a test. However, I started to think that the error message "parsererror" is returned as a json format problem, and finally found that it was a web. I lost two lines in config and got depressed for a long time. I read a greki article from a netizen and expressed my thanks here. But I did not do it. I asked my friend for a test, finally, we can!

Below are some examples of the test:

The test (vs05) uses a static file, a jquery1.3.2.js file, and a WebServices file.

A static file test

<% @ Page Language = "C #" AutoEventWireup = "true" CodeFile = "test. aspx. cs" Inherits = "test" %>
<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head id = "Head1" runat = "server">
<Title> No title page </title>
<Script language = "javascrpt" type = "text/javascript" src = "/js/jquery1.3.2.js"> </script>
<Script language = "javascript" type = "text/javascript">
</Script>
</Head>
<Body>
<Form id = "form1" runat = "server">
<Input id = "Button1" type = "button" value = "button"/>
<Span id = "span1"> </span>

</Form>
</Body>
</Html>

Js is used in static files (in four cases ):

1. Without Parameters
$ (Document). ready (function (){
$ ('# Button1'). click (function (){
$. Ajax ({
Type: "POST", // use the get method to access the background
DataType: "json", // return data in json format
ContentType: "application/json ",
Url: "WebService. asmx/HelloWorld", // the backend address to be accessed
Data :"{}",
Success: function (result ){
Alert (result );
},
Error: function (xhr, msg, e) {alert (msg );}
});
});
});

2. With Parameters
$ (Document). ready (function (){
$ ('# Button1'). click (function (){
$. Ajax ({
Type: "POST", // use the get method to access the background
DataType: "json", // return data in json format
ContentType: "application/json ",
Url: "WebService. asmx/HelloName", // the backend address to be accessed
Data: "{name: 'lqingta '}",
Success: function (result ){
Alert (result );
},
Error: function (xhr, msg, e) {alert (msg );}
});
});
});

3. Return to the generic list
$ (Document). ready (function (){
$ ('# Button1'). click (function (){
$. Ajax ({
Type: "POST", // use the get method to access the background
DataType: "json", // return data in json format
ContentType: "application/json ",
Url: "WebService. asmx/GetArray", // the backend address to be accessed
Data: "{I: 5 }",
Success: function (result ){
Alert (result. join ("-"));
},
Error: function (xhr, msg, e) {alert (msg );}
});
});
});

4. Return complex types
$ (Document). ready (function (){
$ ('# Button1'). click (function (){
$. Ajax ({
Type: "POST", // use the get method to access the background
DataType: "json", // return data in json format
ContentType: "application/json ",
Url: "WebService. asmx/GetPerson", // The background address to be accessed
Data: "{name: 'lqt ', score: 80 }",
Success: function (result ){
Var person = result;
Var showText = [];
For (var p in person)
{
ShowText. push (p + ":" + person [p]);
}
Alert (showText. join ("\ r \ n "));
},
Error: function (xhr, msg, e) {alert (msg );}
});
});
});

Ii. webservice. cs File
Using System;
Using System. Web;
Using System. Collections;
Using System. Collections. Generic;
Using System. Web. Services;
Using System. Web. Services. Protocols;
Using System. Web. Script. Services;

/// <Summary>
/// Summary of WebService
/// </Summary>
[WebService (Namespace = "http://tempuri.org/")]
[WebServiceBinding (ConformsTo = WsiProfiles. BasicProfile1_1)]
[ScriptService]
Public class WebService: System. Web. Services. WebService {

Public WebService (){

// If you use the designed component, uncomment the following line
// InitializeComponent ();
}

[WebMethod]
Public string HelloWorld (){
Return "Hello World ";
}

[WebMethod]
Public string HelloName (string name)
{
Return string. Format ("Hello, {0}", name );
}

[WebMethod]
Public List <int> GetArray (int I)
{
List <int> list = new List <int> ();
While (I> = 0)
{
List. Add (I --);
}
Return list;
}

[WebMethod]
Public Person GetPerson (string name, int score)
{
Person person = new Person ();
Person. Name = name;
Person. Score = score;
Return person;
}

Public class Person
{
Private string _ Name;
Private int _ Score;
Public string Name
{
Get {return _ Name ;}
Set {_ Name = value ;}
}
Public int Score
{
Get {return _ Score ;}
Set {_ Score = value ;}
}
}

}

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