DataTableCollection.AddRange(DataTable[]) 方法
定义
public:
void AddRange(cli::array <System::Data::DataTable ^> ^ tables);
public void AddRange (System.Data.DataTable?[]? tables);
public void AddRange (System.Data.DataTable[] tables);
member this.AddRange : System.Data.DataTable[] -> unit
Public Sub AddRange (tables As DataTable())
参数
- tables
- DataTable[]
要添加到集合中的 DataTable 对象的数组。The array of DataTable objects to add to the collection.
示例
下面的示例创建两个 DataTable 对象,并将它们添加到的 DataTableCollection DataSet 。The following example creates two DataTable objects and adds them to the DataTableCollection of a DataSet.
public static void DataTableCollectionAddRange()
{
// create a DataSet with two tables
DataSet dataSet = new DataSet();
// create Customer table
DataTable customersTable = new DataTable("Customers");
customersTable.Columns.Add("customerId",
typeof(int)).AutoIncrement = true;
customersTable.Columns.Add("name",
typeof(string));
customersTable.PrimaryKey = new DataColumn[] { customersTable.Columns["customerId"] };
// create Orders table
DataTable ordersTable = new DataTable("Orders");
ordersTable.Columns.Add("orderId",
typeof(int)).AutoIncrement = true;
ordersTable.Columns.Add("customerId",
typeof(int));
ordersTable.Columns.Add("amount",
typeof(double));
ordersTable.PrimaryKey = new DataColumn[] { ordersTable.Columns["orderId"] };
dataSet.Tables.AddRange(new DataTable[] { customersTable, ordersTable });
// print the tables and their columns
foreach (DataTable table in dataSet.Tables)
{
Console.WriteLine(table.TableName);
foreach (DataColumn column in table.Columns)
{
Console.Write("{0}\table", column.ColumnName);
}
Console.WriteLine();
}
}
Public Sub DataTableCollectionAddRange()
' create a DataSet with two tables
Dim dataSet As New DataSet()
' create Customer table
Dim customersTable As New DataTable("Customers")
customersTable.Columns.Add("customerId", _
Type.GetType("System.Int32")).AutoIncrement = True
customersTable.Columns.Add("name", Type.GetType("System.String"))
customersTable.PrimaryKey = New DataColumn() _
{customersTable.Columns("customerId")}
' create Orders table
Dim ordersTable As New DataTable("Orders")
ordersTable.Columns.Add("orderId", _
Type.GetType("System.Int32")).AutoIncrement = True
ordersTable.Columns.Add("customerId", _
Type.GetType("System.Int32"))
ordersTable.Columns.Add("amount", _
Type.GetType("System.Double"))
ordersTable.PrimaryKey = New DataColumn() _
{ordersTable.Columns("orderId")}
dataSet.Tables.AddRange(New DataTable() {customersTable, ordersTable})
' print the tables and their columns
Dim table As DataTable
Dim column As DataColumn
For Each table In dataSet.Tables
Console.WriteLine(table.TableName)
For Each column In table.Columns
Console.Write("{0}" & vbTab, column.ColumnName)
Next
Console.WriteLine()
Next
End Sub