Executes the appropriate commands to delete, insert, or update the specified rows in the data source.
'Declaration
Public Function UpdateRows( _
ByVal () As DataRow _
) As Integer
Parameters
- datarows
- An array of System.Data.DataRow objects containing the rows to be updated.
Return Value
The number of rows successfully updated from the
DbDataTable.
The following code adds two records to a table and updates them. The table is rendered then to console.
static void UpdateATable(DbDataTable myDataTable, IDbConnection myConnection)
{
myDataTable.Connection = myConnection;
myDataTable.SelectCommand = myConnection.CreateCommand();
myDataTable.SelectCommand.CommandText = "SELECT EmpNo, EName FROM Test.Emp";
try
{
myDataTable.Active = true;
DataRow[] newRows = new DataRow[2];
newRows[0] = myDataTable.Rows.Add(new object[] {20000,"Jefferson"});
newRows[1] = myDataTable.Rows.Add(new object[] {20001,"Jameson"});
myDataTable.UpdateRows(newRows);
foreach(DataRow myRow in myDataTable.Rows)
{
foreach(DataColumn myCol in myDataTable.Columns)
{
Console.Write(myRow[myCol]+"\t");
}
Console.WriteLine();
}
}
finally
{
myDataTable.Active = false;
}
}
Public Sub UpdateATable(ByVal myDataTable As DbDataTable, ByVal myConnection As IDbConnection)
myDataTable.Connection = myConnection
myDataTable.SelectCommand = myConnection.CreateCommand()
myDataTable.SelectCommand.CommandText = "SELECT EmpNo, EName FROM Test.Emp"
Try
myDataTable.Active = True
Dim newVal1() As Object = {20000, "Jefferson"}
Dim newVal2() As Object = {20001, "Jameson"}
Dim newRows(1) As DataRow
newRows(0) = myDataTable.Rows.Add(newVal1)
newRows(1) = myDataTable.Rows.Add(newVal2)
myDataTable.UpdateRows(newRows)
Dim myRow As DataRow
Dim myCol As DataColumn
For Each myRow In myDataTable.Rows
For Each myCol In myDataTable.Columns
Console.Write(myRow(myCol) & Chr(9))
Next myCol
Console.WriteLine()
Next myRow
Finally
myDataTable.Active = False
End Try
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2