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01 public class JsonUtil

02 {

03 public string ToJson(DataSet dataSet)

04 {

05 string jsonString = "{";

06 foreach (DataTable table in dataSet.Tables)

07 {

08 jsonString += """" + table.TableName + """:" + ToJson(table) + ",";

09 }

10 jsonString = jsonString.TrimEnd(',');

11 return jsonString + "}";

12 }

13 public string ToJson(DataTable dt)

14 {

15 StringBuilder jsonString = new StringBuilder();

16 jsonString.Append("[");

17 DataRowCollection drc = dt.Rows;

18 for (int i = 0; i < drc.Count; i++)

19 {

20 jsonString.Append("{");

21 for (int j = 0; j < dt.Columns.Count; j++)

22 {

23 string strKey = dt.Columns[j].ColumnName;

24 string strValue = drc[i][j].ToString();

25

26 Type type = dt.Columns[j].DataType;

27 jsonString.Append("""" + strKey + """:");

28 strValue = String.Format(strValue, type);

29

30 jsonString.Append("""" + strValue + """,");

31

32 }

33 jsonString.Append("},");

34 }

35 jsonString.Remove(jsonString.Length - 1, 1);

36 jsonString.Append("]");

37 return jsonString.ToString();

38 }

39 }

使用

1 JsonUtil ju = new JsonUtil();

2 Response.Write(ju.ToJson(ds));

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