DataTable 转 JSON,XML转JSON

 今天总结一下关于DataTable,XML转JSON的方法：

首先需要引入命名空间： using Newtonsoft.Json 1 public string DataTableToJsonWithStringBuilder(DataTable table)

 2     {
 3         var jsonString = new StringBuilder();
 4         if (table.Rows.Count > 0)
 5         {
 6               jsonString.Append("[");
 7             for (int i = 0; i < table.Rows.Count; i++)
 8             {
 9                 jsonString.Append("{");
10                 for (int j = 0; j < table.Columns.Count; j++)
11                 {
12                     if (j < table.Columns.Count - 1)
13                     {
14                         jsonString.Append("\"" + table.Columns[j].ColumnName.ToString()
15                      + "\":" + "\""
16                      + table.Rows[i][j].ToString() + "\",");
17                     }
18                     else if (j == table.Columns.Count - 1)
19                     {
20                         jsonString.Append("\"" + table.Columns[j].ColumnName.ToString()
21                      + "\":" + "\""
22                      + table.Rows[i][j].ToString() + "\"");
23                     }
24                 }
25                 if (i == table.Rows.Count - 1)
26                 {
27                     jsonString.Append("}");
28                 }
29                 else
30                 {
31                     jsonString.Append("},");
32                 }
33             }
34               jsonString.Append("]");
35         }
36         return jsonString.ToString();
37     }

调用：

var xmlToJson = DataTableToJsonWithStringBuilder(newdt);// datatable转json数组

//XML转JSON

var xmlToJson1 = JsonConvert.SerializeXmlNode(child, Newtonsoft.Json.Formatting.None, true);