// <Snippet1>
public static void DemonstrateOnRemoveTable()
{
DerivedDataSet dataSet = CreateDataSet();
if (dataSet.Tables.Count > 0)
{
dataSet.Tables.RemoveAt(0);
}
}
// <Snippet1>
private void RejectChangesInDataSet()
{
// Instantiate the derived DataSet.
DerivedDataSet derivedData = new DerivedDataSet();
// Insert code to change values.
// Invoke the RejectChanges method in the derived class.
derivedData.RejectDataSetChanges();
}
public static DerivedDataSet CreateDataSet()
{
// Create a DataSet with one table containing two columns.
DerivedDataSet derived = new DerivedDataSet();
// Add table to DataSet.
DataTable table = derived.Tables.Add("Items");
// Add two columns.
DataColumn column = table.Columns.Add("id", typeof(int));
column.AutoIncrement = true;
table.Columns.Add("item", typeof(int));
// Set primary key.
table.PrimaryKey = new DataColumn[] { table.Columns["id"] };
return(derived);
}