如何使用wcf方法，它是aspx.cs文件中的返回类型列表 [英] how to consume wcf method which is return type list in aspx.cs file

问题描述

iservice.cs中的

 [operationcontract] 
 list<导致> method（ string  name）; 
 
 [datacontract] 
  public   class 结果
 {
 
 [DataMember] 
  public   int  no 
 {
  get  { return  no;} 
  set  {no =  value ; } 
} 
 [DataMember] 
  public   int  age 
 {
 获取 {返回年龄;} 
  set  {age =  value ; } 
} 
 
} 

在wcf service.cs

  public  list<导致>方法（字符串名称）
 {
 sqlcon 
 sql命令类型过程名称输入，无输出，年龄输出
结果rs =  new  result（）; 
 rs.no = cmd.parameters [  @ no]。值; 
 rs.age = cmd.parameters [  @ age]。值; 
 list<导致> rls = 新列表<结果取代; 
 rls。 add （rs）; 
 
} 

在aspx.cs文件中

 ServiceReference2.Service1Client obj2 =  new  ServiceReference2.Service1Client（）; 

最后在aspx.cs文件中调用wcf服务它是完美的但是当调用wcf方法时返回类型列表显示错误

错误18无法将类型'sample.ServiceReference2.result []'隐式转换为'System.Collections.Generic.List'

如何使用wcf方法，这是aspx.cs文件中的返回类型列表，任何示例代码或任何示例或对我的代码的任何修改

解决方案

< blockquote>添加服务引用选择列表作为数组的返回类型。

检查以下链接中给出的示例



http://www.c-sharpcorner.co m / uploadfile / dhananjaycoder / collection-in-wcf / [ ^ ]

检查另一个例子。

http://www.dotnetspeaks.com/DisplayArticle.aspx?ID=29 [ ^ ]

in iservice.cs

[operationcontract]
list< result> method(string name);

[datacontract]
public class result
{

[DataMember]
        public int no
        {
            get { return no;}
            set { no= value; }
        }
        [DataMember]
        public int age
        {
            get { return age;}
            set { age= value; }
        }

}

in wcf service.cs

public list< result> method( string name)
{
    sqlcon
    sql command type procedure  name-input,no-output,age-output
    result rs=new result();
    rs.no=cmd.parameters["@no"].value;
    rs.age=cmd.parameters["@age"].value;
    list< result> rls=new list< result>;
    rls.add(rs);

}

in aspx.cs file

ServiceReference2.Service1Client obj2 = new ServiceReference2.Service1Client();

up to calling wcf service in aspx.cs file it is perfect but when calling wcf method which is in return type list its showing error

Error 18  Cannot implicitly convert type 'sample.ServiceReference2.result[]' to 'System.Collections.Generic.List'

how to consume wcf method which is return type list in aspx.cs file any sample code or any example or any modifications for my code

解决方案

While Adding service reference select list as return type for array.

Check example given in below link

http://www.c-sharpcorner.com/uploadfile/dhananjaycoder/collection-in-wcf/[^]

Check another example.
http://www.dotnetspeaks.com/DisplayArticle.aspx?ID=29[^]

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