public List <CategoryItems> QueryNodesByIndex(string keySpell)
{
CategoryItems item = new CategoryItems()
{
IndexSpell = "%" + keySpell + "%"
};
DataSet ds = new SqlCmdHelper()
{
SqlConnString = SqlConnString
}.GenerateQuerySqlAndExcute(item.GetQueryByIndexSpell(), item);
return(DataHelp.DataReflection.DataSetConvert <CategoryItems>(ds));
}