服務器端使用asmx jquery數據表

我正在使用jquery數據表1.10.12使用服務器端處理選項。我試着從他們的網站JQuery Data table server side代碼，但沒有運氣。 Iam做錯了哪個頁面沒有顯示記錄並給出了錯誤500任何幫助都會很棒。服務器端使用asmx jquery數據表

我的代碼：

.aspxpage

<script> 
    $(document).ready(function() { 
     $('#example').DataTable({ 
      serverSide: true, 
      ajax: 'EmployeeService.asmx/GetPersons' 
     }); 
     });  
     </script> 
    <body> 
    <table id="example" class="display" cellspacing="0" width="100%"> 
    <thead> 
     <tr> 
      <th>BusinessEntityID</th> 
      <th>FirstName</th> 
      <th>MiddleName</th> 
      <th>LastName</th> 
      <th>PersonType</th> 
     </tr> 
    </thead>  
    </table>  
    </body> 

    asmx: 
    [WebMethod] 
    public void GetPersons(int iDisplayLength, int iDisplayStart, int iSortCol_0, string sSortDir_0, string sSearch) 

    { 
     int displayLength = iDisplayLength; 
     int displayStart = iDisplayStart; 
     int sortCol = iSortCol_0; 
     string sortDir = sSortDir_0; 
     string search = sSearch; 
     List<Person> pdetails = new List<Person>(); 
     int filteredcount = 0; 
     using (SqlConnection con = new SqlConnection("Data Source=xxx;Initial Catalog=AdventureWorks;Integrated Security=True")) 
     { 
      SqlCommand cmd = new SqlCommand(("spGetPersons"), con); 
      cmd.CommandType = CommandType.StoredProcedure; 

      SqlParameter pDisplayLength = new SqlParameter() 
      { 
       ParameterName = "@DisplayLength", 
       Value = displayLength 
      }; 
      cmd.Parameters.Add(pDisplayLength); 
      SqlParameter pDisplayStart = new SqlParameter() 
      { 
       ParameterName = "@DisplayStart", 
       Value = displayStart 
      }; 
      cmd.Parameters.Add(pDisplayStart); 
      SqlParameter pSortCol = new SqlParameter() 
      { 
       ParameterName = "@SortCol", 
       Value = sortCol 
      }; 
      cmd.Parameters.Add(pSortCol); 
      SqlParameter pSortDir = new SqlParameter() 
      { 
       ParameterName = "@SortDir", 
       Value = sortDir 
      }; 
      cmd.Parameters.Add(pSortDir); 
      SqlParameter pSearchString = new SqlParameter() 
      { 
       ParameterName = "@Search", 
       Value = string.IsNullOrEmpty(search)?null:search 
      }; 
      cmd.Parameters.Add(pSearchString); 
      con.Open(); 
      SqlDataReader rdr = cmd.ExecuteReader(); 
      while (rdr.Read()) 
      { 
       Person per = new Person(); 
       per.BusinessEntityID = rdr["BusinessEntityID"].ToString(); 
       filteredcount = Convert.ToInt32(rdr["TotalCount"].ToString()); 
       per.FirstName = rdr["FirstName"].ToString(); 
       per.MiddleName = rdr["MiddleName"].ToString(); 
       per.LastName = rdr["LastName"].ToString(); 
       per.PersonType = rdr["PersonType"].ToString(); 
       pdetails.Add(per); 
      } 
     } 

     var result = new 
     { 

      draw = 1, 
      recordsTotal = GetPersonsTotalCount(), 
      recordsFiltered = filteredcount, 
      data = pdetails 
     }; 

     JavaScriptSerializer js = new JavaScriptSerializer(); 
     js.MaxJsonLength = 2147483644; 
     Context.Response.Write(js.Serialize(result)); 
    } 

    private int GetPersonsTotalCount() 
    { 
     int totalPersonCount = 0; 
     using (SqlConnection con = new SqlConnection("Data Source=xxx;Initial Catalog=AdventureWorks;Integrated Security=True")) 
     { 
      SqlCommand cmd = new SqlCommand(("select count(*) from Person.Person"), con); 
      con.Open(); 
      totalPersonCount = (int)cmd.ExecuteScalar(); 
     } 
     return totalPersonCount; 
    } 
    public class Person 
    { 
     public string BusinessEntityID { get; set; } 
     public string FirstName { get; set; } 
     public string MiddleName { get; set; } 
     public string LastName { get; set; } 
     public string PersonType { get; set; } 

    } 

    JSON : 

    {"draw":1,"recordsTotal":19972,"recordsFiltered":19972,"data":[{"BusinessEntityID":"1","FirstName":"Ken","MiddleName":"J","LastName":"Sánchez","PersonType":"EM"},{"BusinessEntityID":"2","FirstName":"Terri","MiddleName":"Lee","LastName":"Duffy","PersonType":"EM"},{"BusinessEntityID":"3","FirstName":"Roberto","MiddleName":"","LastName":"Tamburello","PersonType":"EM"},{"BusinessEntityID":"4","FirstName":"Rob","MiddleName":"","LastName":"Walters","PersonType":"EM"},{"BusinessEntityID":"5","FirstName":"Gail","MiddleName":"A","LastName":"Erickson","PersonType":"EM"},{"BusinessEntityID":"6","FirstName":"Jossef","MiddleName":"H","LastName":"Goldberg","PersonType":"EM"},{"BusinessEntityID":"7","FirstName":"Dylan","MiddleName":"A","LastName":"Miller","PersonType":"EM"},{"BusinessEntityID":"8","FirstName":"Diane","MiddleName":"L","LastName":"Margheim","PersonType":"EM"},{"BusinessEntityID":"9","FirstName":"Gigi","MiddleName":"N","LastName":"Matthew","PersonType":"EM"},{"BusinessEntityID":"10","FirstName":"Michael","MiddleName":"","LastName":"Raheem","PersonType":"EM"}]}

錯誤：

http://localhost:64400/EmployeeService.asmx/GetPersons?draw=1&columns%5B0%5 …art=0&length=10&search%5Bvalue%5D=&search%5Bregex%5D=false&_=1478471333896 Failed to load resource: the server responded with a status of 500 (Internal Server Error) Server Error in '/' Application.

Request format is unrecognized for URL unexpectedly ending in '/GetPersons'.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Request format is unrecognized for URL unexpectedly ending in '/GetPersons'.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[InvalidOperationException: Request format is unrecognized for URL unexpectedly ending in '/GetPersons'.]
System.Web.Services.Protocols.WebServiceHandlerFactory.CoreGetHandler(Type type, HttpContext context, HttpRequest request, HttpResponse response) +169669 System.Web.Services.Protocols.WebServiceHandlerFactory.GetHandler(HttpContext context, String verb, String url, String filePath) +209
System.Web.Script.Services.ScriptHandlerFactory.GetHandler(HttpContext context, String requestType, String url, String pathTranslated) +120
System.Web.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +339 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

來源

2016-11-06 Jim Lobo

請修改您的ASMX文件中像

[WebMethod] 
[ScriptMethod(ResponseFormat = ResponseFormat.Json)] 
[ScriptMethod(UseHttpGet=true)] 
    public void GetPersons(int iDisplayLength, int iDisplayStart, int iSortCol_0, string sSortDir_0, string sSearch) 

{ 
}

Modifi web配置裏面添加webServ協議冰

<system.web> 
<webServices> 
     <protocols> 
     <add name="HttpGet"/> 
     <add name="HttpPost"/> 
     </protocols>

來源

2016-11-07 06:16:25

嗨Rajshee。感謝您的幫助和代碼。我在我的xxx中有[System.Web.Script.Services.ScriptService]。 asmx.cs文件。 [System.Web.Script.Services.ScriptService] 公共類ABCDetailService：System.Web.Services.WebService {[的WebMethod] [ScriptMethod（UseHttpGet =真，ResponseFormat = ResponseFormat.Json）] 公共無效GetPersons（INT iDisplayLength ，int iDisplayStart，int iSortCol_0，string sSortDir_0，string sSearch） {} –

您可以發佈完整的asmx文件代碼嗎？ –

錯誤：System.InvalidOperationException：缺少參數：iDisplayLength。在System.Web.Services.Protocols.ValueCollectionParameterReader.Read（NameValueCollection中集）在System.Web.Services.Protocols.HttpServerProtocol.ReadParameters（）在System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest（） –

服務器端使用asmx jquery數據表

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