How jquery calls wcf and displays data_jquery

Chuangneng wcf is the first choice, the code is very simple, as follows:

Copy the code The code is as follows:

using System;
using System.Data;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.Web.Script.Services;

[ServiceContract(Namespace = "")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
[ServiceBehavior(IncludeExceptionDetailInFaults = true)]
public class imgService
{
// To use HTTP GET, add the [WebGet] attribute. (Default ResponseFormat is WebMessageFormat.Json)
// To create an operation that returns XML,
// add [WebGet(ResponseFormat=WebMessageFormat.Xml)],
// and include the following in the operation body Line:
// WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml";
[OperationContract]
[WebGet(RequestFormat=WebMessageFormat.Json,ResponseFormat=WebMessageFormat.Json)]
/ /[WebInvoke(Method = "GET", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json,BodyStyle = WebMessageBodyStyle.WrappedRequest)]
public DataTable GetDataTable(string pz)
{
// here Add operation implementation
DataSet ds = WebBase.GetDS(WebBase.meinvRepository, string.Empty, " body_id desc",pz);
if (ds.Tables.Count > 0)
return ds. Tables[0];
return null;
}

// Add more operations here and mark them with [OperationContract]
}

Explain that wcf has a GetDataTable method. There is a parameter pz indicating the number of rows of returned data. The returned table is used as json data for jquery

The page calling method is also very simple:

Copy code The code is as follows:

<%@ Page Language="C#" EnableViewState="false " AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="jquerywcf_Default" %>

Explain that the data returned by wcf is mainly obtained through the getjson method of jquery. The parameter passing method:

$.getJSON(url, { pz: "6" }, function (msg) {alert(msg.d)});Here are the 6 pieces of data returned and the attributes added to the svc of wcf:
Factory=System.ServiceModel.Activation.WebScriptServiceHostFactory and the configuration of web.config:

Copy code The code is as follows:

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< ;/pages>














type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">


< ;/compiler>
type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0. 0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">





























type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>





































binding="webHttpBinding" contract="imgService" />

好的，成功！上传到gd空间试试 :)

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