將數據集的大小傳遞給角度服務

Question

將數據集的大小傳遞給角度服務。我正在嘗試將數據集（計數）的大小傳遞給角度服務。我剛開始工作與角度和任何幫助，不勝感激。

的Controler：

public JsonResult GetAllCurrentSettings() 
    { 
     var jsonString = string.Empty; 

     string query = "SELECT * from test"; 

     try 
     { 
      using (SqlConnection conn = new SqlConnection(connStringApps)) 
      { 
       conn.Open(); 
       using (SqlCommand command = new SqlCommand(query, conn)) 
       { 
        DataTable dt = new DataTable(); 

        using (SqlDataReader rdr = command.ExecuteReader()) 
        { 
         dt.Load(rdr); 
        } 

        jsonString = Newtonsoft.Json.JsonConvert.SerializeObject(dt, Formatting.None); 
        return Json(jsonString); 
       } 
      } 
     } 
     catch (Exception ex) 
     { 
      Console.Write(ex.ToString()); 
      return Json(jsonString); 
     } 
    } 

角服務

myApp.service('allCurrentSettingsService', ['$http', '$q', function ($http, $q) { 
     var allSettings = null; 
     this.getList = function() { 
      var def = $q.defer() 
      if (allSettings) { 
       def.resolve(allSettings); 
      } else { 
       $http.post('GetAllCurrentSettings') 
        .then(function (response) { 
         var response = $.parseJSON(response.data) 
         allSettings = response; 
         def.resolve(allSettings); 
        }); 
      } 
      return def.promise; 
     } 
    }]); 

Answer 1

$http.post('GetAllCurrentSettings') 
       .then(function (response) { 
        var response = $.parseJSON(response.data) 

響應已經是一個JSON對象。

$ .parseJSON：採用格式正確的JSON字符串並返回結果JavaScript值。

您可以直接使用response對象是這樣的：

def.resolve(response);