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

Nell'esempio seguente viene prima creato un DataTable nuovo oggetto con una colonna e quindi viene creato DataRowun singolo oggetto.The following example first creates a new DataTable with one column, and then creates a single DataRow. Quando viene creato, aggiunto, modificato ed eliminato RowState , viene stampato. DataRowAs 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 New DataTable("table")
    Dim fnameColumn As 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 in modo implicito per terminare le modifiche.When invoking AcceptChanges, the EndEdit method is implicitly called to end any edits. Se la RowState della riga è stata aggiunta o modificata RowState , diventa invariato.If the RowState of the row was Added or Modified, the RowState becomes Unchanged. RowState Se 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.

La DataTable classe dispone inoltre di AcceptChanges un metodo che influisca sulle modifiche apportate all'intera tabella.The DataTable class also has an AcceptChanges method which affects changes made to the whole table. Per ulteriori informazioni e un esempio di codice in cui viene illustrato come accettare e rifiutare le modifiche alle singole righe di dati, vedere AcceptChanges e RejectChanges.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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