DataTable.AcceptChanges 方法

定義

命名空間:

System.Data

組件:

System.Data.Common.dll

來源:

DataTable.cs

認可自前一次呼叫 AcceptChanges() 以來對這個資料表所做的所有變更。

public:
 void AcceptChanges();

public void AcceptChanges ();

member this.AcceptChanges : unit -> unit

Public Sub AcceptChanges ()

範例

下列範例會測試每個數據表是否有錯誤。 如果資料表的錯誤可以藉由將它傳遞至未定義的函式) 來協調 (， AcceptChanges 則會呼叫 ，否則 RejectChanges 會呼叫 。

private void AcceptOrReject(DataTable table)
{
    // If there are errors, try to reconcile.
    if(table.HasErrors)
    {
        if(Reconcile(table))
        {
            // Fixed all errors.
            table.AcceptChanges();
        }
        else
        {
            // Couldn'table fix all errors.
            table.RejectChanges();
        }
    }
    else
    {
        // If no errors, AcceptChanges.
        table.AcceptChanges();
    }
}

private bool Reconcile(DataTable thisTable)
{
    foreach(DataRow row in thisTable.Rows)
    {
        //Insert code to try to reconcile error.

        // If there are still errors return immediately
        // since the caller rejects all changes upon error.
        if(row.HasErrors)
            return false;
    }
    return true;
}

Private Sub AcceptOrReject(table As DataTable)
    ' If there are errors, try to reconcile.
        If (table.HasErrors) Then
            If (Reconcile(table)) Then
                ' Fixed all errors.
                table.AcceptChanges()
            Else
                ' Couldn'table fix all errors.
                table.RejectChanges()
            End If
        Else
            ' If no errors, AcceptChanges.
            table.AcceptChanges()
        End If
 End Sub
 
Private Function Reconcile(thisTable As DataTable) As Boolean
    Dim row As DataRow
    For Each row in thisTable.Rows
       'Insert code to try to reconcile error.

       ' If there are still errors return immediately
       ' since the caller rejects all changes upon error.
       If row.HasErrors Then
           Reconcile = False
           Exit Function
       End If
    Next row
    Reconcile = True
 End Function

備註

呼叫 時 AcceptChanges ， DataRow 任何仍在編輯模式中的物件都已成功結束其編輯。 DataRowState也會變更：所有數據AddedModified列都會變成 Unchanged，而且Deleted會移除數據列。

AcceptChanges當您嘗試使用 DbDataAdapter.Update 方法更新 DataSet 之後，通常會在上DataTable呼叫 方法。

另請參閱

• DataTables