jQuery.ajax() calls asp.net background method-C#.Net Tutorial-php.cn

Using JQuery’s $.ajax() can easily call asp.net’s background methods.

Let’s warm up with a simple example first.

1. Method call without parameters

C# background code:

using System.Web.Services; [WebMethod] public static string sayHi() { return "Hi,Welcome to China!"; }

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Note: 1. The method must be a static method and must have the declaration of [WebMethod].

html code:

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jQuery code:

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Running results:

jQuery.ajax() calls asp.net background method

You can clearly see the data format returned by json through firebug, so you need data.d when fetching data.

2. Method call with parameters

C# background code:

[WebMethod] public static string sayHi(string address, string name) { return "Hi," + address + " " + name; }

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html code:

  address: family name:

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jQuery code:

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Running results

jQuery.ajax() calls asp.net background method

3. Calling the method that returns the List collection

C# background code:

[WebMethod] public static List sayHi(string address, string name) { List list = new List(); for (int i = 0; i < 10; i++) { list.Add("Hi:" + i.ToString()); } list.Add("Hi:" + address + " " + name); return list; }

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html code:

  address: family name:

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jQuery code:

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Run result:

jQuery.ajax() calls asp.net background method

4. Return SortedList method call

C# background code:

[WebMethod] public static SortedList sayHi(string address, string name) { SortedList sl = new SortedList(); for (int i = 0; i < 10; i++) { sl.Add(i.ToString() + "_key", i.ToString() + "_value"); } sl.Add("_key", "_value " + address + " " + name); return sl; }

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html code:

  address: family name:

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jQuery code:

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Running result:

jQuery.ajax() calls asp.net background method

5. Operation xml

Xml file code:

   ASP.NET 3.5高级程序设计(第2版) 麦克唐纳博思工作室 2034000 76   ASP.NET 3.5入门经典 (荷兰)史潘加斯(Spaanjaars,I.) 1046000 78.5   C#高级编程（第5版）上下卷 (美)内格尔（Nagel.C）　等著 24770000 124   ASP.NET AJAX实战 (美)麦克卢尔，（美）格拉维奇，（美）欧尔　等著 511000 44   ASP.NET程序开发范例宝典(C#)(第2版) 张跃延，苏宇，贯伟红 1419000 71.2