asp.NetDataSet変換josn出力例

 
  
public class JsonUtil 
  
{ 
  
public string ToJson(DataSet dataSet) 
  
{ 
  
string jsonString = "{"; 
  
foreach (DataTable table in dataSet.Tables) 
  
{ 
  
jsonString += """" + table.TableName + """:" + ToJson(table) + ","; 
  
} 
  
jsonString = jsonString.TrimEnd(','); 
  
return jsonString + "}"; 
  
} 
  
public string ToJson(DataTable dt) 
  
{ 
  
StringBuilder jsonString = new StringBuilder(); 
  
jsonString.Append("["); 
  
DataRowCollection drc = dt.Rows; 
  
for (int i = 0; i < drc.Count; i++) 
  
{ 
  
jsonString.Append("{"); 
  
for (int j = 0; j < dt.Columns.Count; j++) 
  
{ 
  
string strKey = dt.Columns[j].ColumnName; 
  
string strValue = drc[i][j].ToString(); 
  
 
  
Type type = dt.Columns[j].DataType; 
  
jsonString.Append("""" + strKey + """:"); 
  
strValue = String.Format(strValue, type); 
  
 
  
jsonString.Append("""" + strValue + ""","); 
  
 
  
} 
  
jsonString.Append("},"); 
  
} 
  
jsonString.Remove(jsonString.Length - 1, 1); 
  
jsonString.Append("]"); 
  
return jsonString.ToString(); 
  
} 
  
} 
  
 
 

 
  
JsonUtil ju = new JsonUtil(); 
  
Response.Write(ju.ToJson(ds));