Create Xml File (using dataset)

StringBuilder _UserInfo = new StringBuilder();
dataset infoDS=new DataSet();
DataSet infoDS = PXE.Facade.PXEFacade.GetUserRoleOnAsset(bookId, nAssetId);
_UserInfo.Append("");
_UserInfo.Append("");
_UserInfo.Append("");
for (int i = 0; i < infoDS.Tables[0].Rows.Count; i++) { if (infoDS.Tables[0].Rows.Count > 0)
{

string _RoleId = infoDS.Tables[0].Rows[i]["roleid"].ToString();
string _UserId = infoDS.Tables[0].Rows[i]["userid"].ToString();
string _RoleName = infoDS.Tables[0].Rows[i]["roleName"].ToString();
string _Abbreviation = infoDS.Tables[0].Rows[i]["abbreviation"].ToString();
string _DisplayName = infoDS.Tables[0].Rows[i]["displayName"].ToString();

_UserInfo.Append("");

_UserInfo.Append("");

_UserInfo.Append("");
//_UserInfo.Append("");

if (File.Exists(tempFolder + "\\UserInfo.xml"))
{
File.SetAttributes(tempFolder + "\\UserInfo.xml", FileAttributes.Normal);

}

StreamWriter _sw1 = new StreamWriter(tempFolder + "\\UserInfo.xml");
_sw1.WriteLine(_UserInfo.ToString());
_sw1.Flush();
_sw1.Close();
_sw1.Dispose();


}
}
StreamWriter _sw = new StreamWriter(tempFolder + "\\UserInfo.xml");
_UserInfo.Append("");
_UserInfo.Append("");
_sw.WriteLine(_UserInfo.ToString());
_sw.Flush();
_sw.Close();
_sw.Dispose();

/**/