asp.netDataSet转换成josn并输出示例

publicclassJsonUtil
{
publicstringToJson(DataSetdataSet)
{
stringjsonString="{";
foreach(DataTabletableindataSet.Tables)
{
jsonString+=""""+table.TableName+""":"+ToJson(table)+",";
}
jsonString=jsonString.TrimEnd(",");
returnjsonString+"}";
}
publicstringToJson(DataTabledt)
{
StringBuilderjsonString=newStringBuilder();
jsonString.Append("[");
DataRowCollectiondrc=dt.Rows;
for(inti=0;i<drc.Count;i++)
{
jsonString.Append("{");
for(intj=0;j<dt.Columns.Count;j++)
{
stringstrKey=dt.Columns[j].ColumnName;
stringstrValue=drc[i][j].ToString();

Typetype=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("]");
returnjsonString.ToString();
}
}