jqeury eval将字符串转换json的方法

 1 $.ajax({
 2     type: "post",
 3     contentType: "application/json",
 4     url: "../WebForm1.aspx/GetRightsStr",
 5     dataType: "json",
 6     success: function(msg){
 7         alert(msg.d);
 8         var data = eval("(" + msg.d + ")");
 9         $.each(data.rights, function(index, item){
10             alert(item.RightsName);
11         });
12     },
13     error: function(e, s, d){
14         alert(e);
15         alert(s);
16         alert(d);
17     }
18 });

 1     /// <summary> 
 2     /// DataTable转成Json 
 3     /// </summary> 
 4     /// <param name="jsonName">josn名称</param> 
 5     /// <param name="dt">要转换的数据集</param> 
 6     /// <returns></returns> 
 7      public static string DataTableToJson(string jsonName, DataTable dt)
 8     {
 9         StringBuilder Json = new StringBuilder();
10         Json.Append("{\"" + jsonName + "\":[");
11         if (dt.Rows.Count > 0)
12         {
13             for (int i = 0; i < dt.Rows.Count; i++)
14             {
15                 Json.Append("{");
16                 for (int j = 0; j < dt.Columns.Count; j++)
17                 {
18                     Json.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":\"" + dt.Rows[i][j].ToString() + "\"");
19                     if (j < dt.Columns.Count - 1)
20                     {
21                         Json.Append(",");
22                     }
23                 }
24                 Json.Append("}");
25                 if (i < dt.Rows.Count - 1)
26                 {
27                     Json.Append(",");
28                 }
29             }
30         }
31         Json.Append("]}");
32         return Json.ToString();
33     }