DataRow.AcceptChanges DataRow.AcceptChanges DataRow.AcceptChanges DataRow.AcceptChanges Method

Definizione

Conferma tutte le modifiche apportate a questa riga dall'ultima chiamata al metodo AcceptChanges().Commits all the changes made to this row since the last time AcceptChanges() was called.

public:
 void AcceptChanges();
public void AcceptChanges ();
member this.AcceptChanges : unit -> unit
Public Sub AcceptChanges ()

Eccezioni

La riga non appartiene alla tabella.The row does not belong to the table.

Esempi

L'esempio seguente crea prima di tutto una nuova DataTable con una sola colonna, quindi viene creato un singolo DataRow.The following example first creates a new DataTable with one column, and then creates a single DataRow. Come le DataRow viene creato, aggiunti, modificati ed eliminate, relativo RowState viene stampato.As the DataRow is created, added, modified, and deleted, its RowState is printed.

private void DemonstrateAcceptChanges()
{
    //Run a function to create a DataTable with one column.
    DataTable table = MakeTable();
    DataRow row;

    // Create a new DataRow.
    row = table.NewRow();
    // Detached row.
    Console.WriteLine("New Row " + row.RowState);

    table.Rows.Add(row);
    // New row.
    Console.WriteLine("AddRow " + row.RowState);

    table.AcceptChanges();
    // Unchanged row.
    Console.WriteLine("AcceptChanges " + row.RowState);

    row["FirstName"] = "Scott";
    // Modified row.
    Console.WriteLine("Modified " + row.RowState);

    row.Delete();
    // Deleted row.
    Console.WriteLine("Deleted " + row.RowState);
}

private DataTable MakeTable()
{
    // Make a simple table with one column.
    DataTable table = new DataTable("table");
    DataColumn fnameColumn = new DataColumn(
        "FirstName", Type.GetType("System.String"));
    table.Columns.Add(fnameColumn);
    return table;
}
Private Sub DemonstrateAcceptChanges()
    ' Run a function to create a DataTable with one column.
    Dim table As DataTable = MakeTable()
    Dim row As DataRow 
 
    ' Create a new DataRow.
    row = table.NewRow()
    ' Detached row.
    Console.WriteLine("New Row " & row.RowState)
 
    table.Rows.Add(row)
    ' New row.
    Console.WriteLine("AddRow " & row.RowState)
 
    table.AcceptChanges()
    ' Unchanged row.
    Console.WriteLine("AcceptChanges " & row.RowState)
 
    row("FirstName") = "Scott"
    ' Modified row.
    Console.WriteLine("Modified " & row.RowState)
 
    row.Delete()
    ' Deleted row.
    Console.WriteLine("Deleted " & row.RowState)
 End Sub
 
 Private Function MakeTable()As DataTable
    ' Make a simple table with one column.
    Dim table As DataTable = New DataTable("table")
    Dim fnameColumn As DataColumn = New DataColumn( _
        "FirstName", Type.GetType("System.String"))
    table.Columns.Add(fnameColumn)
    MakeTable = table
 End Function

Commenti

Quando si richiama AcceptChanges, il EndEdit metodo viene chiamato implicitamente per terminare tutte le modifiche.When invoking AcceptChanges, the EndEdit method is implicitly called to end any edits. Se il RowState della riga è stato Added o Modified, il RowState diventa Unchanged.If the RowState of the row was Added or Modified, the RowState becomes Unchanged. Se il RowState è stato eliminato, la riga viene rimossa.If the RowState was Deleted, the row is removed.

Per altre informazioni, vedere il metodo BeginEdit.See the BeginEdit method for more information.

Il DataTable classe include anche un AcceptChanges metodo deteriorando le modifiche apportate all'intera tabella.The DataTable class also has an AcceptChanges method which affects changes made to the whole table. Per altre informazioni e un esempio di codice che illustra come accettare e rifiutare le modifiche alle singole righe di dati, vedere oggetti acceptchange e Rejectchange.For more information and a code example that demonstrates how to accept and reject changes to individual data rows, see AcceptChanges and RejectChanges.

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