当我从.Aspx.Cs文件调用方法到Webservice.Cs时，为什么会出现错误？ [英] Why I Get An Error When I Call A Method From .Aspx.Cs File To Webservice.Cs ?

问题描述

 使用系统; 
 使用 System.Data; 
 使用 System.Web.Services; 
 
 
 
  public   partial  类 ReportUI：System.Web.UI.Page 
 {
  protected   void  Page_Load（ object  sender，EventArgs e）
 {
 
} 
 
 受保护  void  Show_Report（ object  sender，EventArgs e）
 {
 ShowData（）; 
} 
 
  private   void  ShowData（）
 {
  string  ReportName = txtReportName.Text; 
  string  DatasourceID = txtDataSourceID.Text; 
 
 WebService data =  new  WebService（）; 
 DataSet allData =  new  DataSet（）; 
 
 allData = data.GetResultThroughQuery（ReportName，DatasourceID）; 
} 
} 

 使用系统; 
 使用 System.Linq; 
 使用 System.Web.Services; 
 使用 System.Collections.Generic; 
 
 使用 System.Data; 
 使用 System.Data.SqlClient; 
 
 [WebService（Namespace =   http://tempuri.org/\"）] 
 [WebServiceBinding（ConformsTo = WsiProfiles.BasicProfile1_1）] 
  //  允许这个使用ASP.NET AJAX从脚本调用的Web Service取消注释以下行。  
  //   [System.Web.Script.Services.ScriptService]  
  public   class 服务：System.Web.Services.WebService 
 {
 字符串 ConStr =   Server = 192.168.241.2;数据库= BIModel;用户ID = Sa;密码= Nopass123; 
 
 
  public 服务（）{
 
 
} 
 
 
 [WebMethod] 
  public  DataSet GetResultThroughQuery（ string  ReportName， string  DatasourceID）
 {
 DataSet dataSet =  new  DataSet（）; 
 
 
 
  return  dataSet; 
} 
 
} 

收到错误讯息像这样：'System.Web.Services.WebService'不包含'GetResultThroughQuery'的定义，并且没有可以找到接受类型'System.Web.Services.WebService'的第一个参数的扩展方法'GetResultThroughQuery'（你是否遗漏了） using指令或汇编引用？）

解决方案

您是否在解决方案中插入了服务引用？

如果没有添加到您的解决方案中在webconfig文件中更改为

例如：

我的webservice方法：

 [WebMethod] 
  public   int  insertRecord（ string  sName，  string  sAge， string  sSalary， string  sCountry ， string  sCity）
 {
  var  con =  new  SqlConnection（ ConnectionState（））; 
 con.Open（）; 
 
  var  cmd =  new  SqlCommand（ 插入EMaster（名称，年龄，薪水，国家，城市）值（' + sName +  '，' + sAge +  '，' + sSalary +  '，' + sCountry +  '，' + sCity +  '），con）; 
  int  row = cmd.ExecuteNonQuery（）; 
 返回行; 
} 

和web.config：



< pre lang =xml> < applicationSettings >
< EmployeeDetails.Properties.Settings >
< 设置 name = EmployeeDetails_localhost_Service1 serializeAs = 字符串 >
< 值 > h ttp：// localhost：50656 / Service1.asmx < / value >
< / setting >
< / EmployeeDetails.Properties.Settings >
< / applicationSettings >

和代码behnd文件使用像这样

 protected void Addbutton_Click（object sender，EventArgs e）
 {
 txtid.Enabled = false; 
 localhost.Service1 dbws = new localhost.Service1（）; 
 if（（txtName.Text ==）||（txtage.Text ==）||（txtsalary.Text ==）||（txtcountry.Text ==）|| （txtcity.Text ==））
 {Response.Write（< script> alert（'Record not insert-Rows not not null'）;< / script>）; } 
 else 
 {
 int row = dbws.insertRecord（txtName.Text，txtage.Text，txtsalary.Text，txtcountry.Text，txtcity.Text）; 
 if（row> 0）
 {
 Response.Write（< script> alert（'Record insert successfuly'）;< / script>）; 
 txtid.Text = txtName.Text = txtage.Text = txtsalary.Text = txtcountry.Text = txtcity.Text =; 
 getId（）; 
 FillGrid（）; 
 ddlSelect_SelectedIndexChanged（sender，e）; 
 
} 
 else {Response.Write（< script> alert（'Record not insert'）;< / script>）; } 
} 
 
} 
 

service1是我的网络服务名称。

using System;
using System.Data;
using System.Web.Services;



public partial class ReportUI : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void Show_Report(object sender, EventArgs e)
    {
        ShowData();
    }

    private void ShowData()
    {
        string ReportName = txtReportName.Text;
        string DatasourceID = txtDataSourceID.Text;

        WebService data = new WebService();
        DataSet allData = new DataSet();

        allData = data.GetResultThroughQuery(ReportName, DatasourceID);
    }
}

 using System;
using System.Linq;
using System.Web.Services;
using System.Collections.Generic;

using System.Data;
using System.Data.SqlClient;

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class Service : System.Web.Services.WebService
{
    String ConStr = "Server=192.168.241.2; Database=BIModel; User Id=Sa; password=Nopass123";
   
    
    public Service () {
        
        
                       }


    [WebMethod]
    public DataSet GetResultThroughQuery(string ReportName, string DatasourceID)
    {
        DataSet dataSet=new DataSet();



        return dataSet;
    }
    
}

We get a error message like that: 'System.Web.Services.WebService' does not contain a definition for 'GetResultThroughQuery' and no extension method 'GetResultThroughQuery' accepting a first argument of type 'System.Web.Services.WebService' could be found (are you missing a using directive or an assembly reference?)

解决方案

Have you inserted service refrence in your solution ?
If not add to your solution and make change in webconfig file as
eg:
my webservice method:

[WebMethod]
       public int insertRecord( string sName, string sAge, string sSalary, string sCountry, string sCity)
       {
           var con = new SqlConnection(ConnectionState());
           con.Open();

           var cmd = new SqlCommand("Insert into EMaster(Name,Age, Salary, Country,City) values( '" + sName + "','" + sAge + "','" + sSalary + "','" + sCountry + "','"+ sCity + "')", con);
           int row = cmd.ExecuteNonQuery();
           return row;
       }

and web.config:

<applicationSettings>
  <EmployeeDetails.Properties.Settings>
   <setting name="EmployeeDetails_localhost_Service1" serializeAs="String">
    <value>http://localhost:50656/Service1.asmx</value>
   </setting>
  </EmployeeDetails.Properties.Settings>
 </applicationSettings>

and in code behnd files use like this

protected void Addbutton_Click(object sender, EventArgs e)
      {
          txtid.Enabled = false;
          localhost.Service1 dbws = new localhost.Service1();
          if ((txtName.Text == "") || (txtage.Text == "") || (txtsalary.Text == "") || (txtcountry.Text == "") || (txtcity.Text == ""))
          { Response.Write("<script>alert('Record not insert-Rows Cannot be null');</script>"); }
          else
          {
              int row = dbws.insertRecord(txtName.Text, txtage.Text, txtsalary.Text, txtcountry.Text, txtcity.Text);
              if (row > 0)
              {
                  Response.Write("<script>alert('Record insert successfuly');</script>");
                  txtid.Text=txtName.Text = txtage.Text = txtsalary.Text = txtcountry.Text = txtcity.Text = "";
                  getId();
                  FillGrid();
                  ddlSelect_SelectedIndexChanged(sender, e);

              }
              else { Response.Write("<script>alert('Record not insert');</script>"); }
          }

      }

here service1 is my webservice name.

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