TREEVIEW只输入表名,父ID,节点ID,节点名就得到树型结构之十八(转)

///
/// Execute a SqlCommand (that returns a resultset) against the database specified in the connection string
/// using the provided parameters.
///
///
/// e.g.:
/// FillDataset(connString, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, new SqlParameter("@prodid", 24));
///
/// A valid connection string for a SqlConnection
/// The CommandType (stored procedure, text, etc.)
/// The stored procedure name or T-SQL command
/// An array of SqlParamters used to execute the command
/// A dataset wich will contain the resultset generated by the command
/// This array will be used to create table mappings allowing the DataTables to be referenced
/// by a user defined name (probably the actual table name)
///
public static void FillDataset(string connectionString, CommandType commandType,
string commandText, DataSet dataSet, string[] tableNames,
params SqlParameter[] commandParameters)
{
if( connectionString == null || connectionString.Length == 0 ) throw new ArgumentNullException( "connectionString" );
if( dataSet == null ) throw new ArgumentNullException( "dataSet" );
// Create & open a SqlConnection, and dispose of it after we are done
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();

// Call the overload that takes a connection in place of the connection string
FillDataset(connection, commandType, commandText, dataSet, tableNames, commandParameters);
}
}

///
/// Execute a stored procedure via a SqlCommand (that returns a resultset) against the database specified in
/// the connection string using the provided parameter values. This method will query the database to discover the parameters for the
/// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
///
///
/// This method provides no access to output parameters or the stored procedure's return value parameter.
///
/// e.g.:
/// FillDataset(connString, CommandType.StoredProcedure, "GetOrders", ds, new string[] {"orders"}, 24);
///
/// A valid connection string for a SqlConnection
/// The name of the stored procedure
/// A dataset wich will contain the resultset generated by the command
/// This array will be used to create table mappings allowing the DataTables to be referenced
/// by a user defined name (probably the actual table name)
///
/// An array of objects to be assigned as the input values of the stored procedure
public static void FillDataset(string connectionString, string spName,
DataSet dataSet, string[] tableNames,
params object[] parameterValues)
{
if( connectionString == null || connectionString.Length == 0 ) throw new ArgumentNullException( "connectionString" );
if( dataSet == null ) throw new ArgumentNullException( "dataSet" );
// Create & open a SqlConnection, and dispose of it after we are done
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();

// Call the overload that takes a connection in place of the connection string
FillDataset (connection, spName, dataSet, tableNames, parameterValues);
}
}

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