DataTable.RejectChanges DataTable.RejectChanges DataTable.RejectChanges DataTable.RejectChanges Method

定義

このテーブルを読み込むか、前回 AcceptChanges() を呼び出した以降にこのテーブルに対して行われたすべての変更をロールバックします。Rolls back all changes that have been made to the table since it was loaded, or the last time AcceptChanges() was called.

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

次の例ではDataTable、に対していくつかの変更を行いますが、 RejectChangesメソッドを呼び出して変更を拒否します。The following example makes several changes to a DataTable, but rejects the changes by invoking the RejectChanges method.

private void ShowRejectChanges(DataTable table)
{
    // Print the values of row 1, in the column named "CompanyName."
    Console.WriteLine(table.Rows[1]["CompanyName"]);

    // Make Changes to the column named "CompanyName."
    table.Rows[1]["CompanyName"] = "Taro";

    // Reject the changes.
    table.RejectChanges();

    // Print the original values:
    Console.WriteLine(table.Rows[1]["CompanyName"]);
}
Private Sub ShowRejectChanges(table As DataTable)
    ' Print the values of row 1, in the column named "CompanyName."
    Console.WriteLine(table.Rows(1)("CompanyName"))

    ' Make Changes to the column named "CompanyName."
    table.Rows(1)("CompanyName") = "Taro"

    ' Reject the changes.
    table.RejectChanges()

    ' Print the original values:
    Console.WriteLine(table.Rows(1)("CompanyName"))
End Sub

注釈

RejectChanges呼び出すとDataRow 、編集モードのままのオブジェクトは編集をキャンセルします。When RejectChanges is called, any DataRow objects that are still in edit-mode cancel their edits. 新しい行が削除されます。New rows are removed. がにDataRowState Modified設定されてDeletedいる行、またはが元の状態に戻る行。Rows with the DataRowState set to Modified or Deleted return back to their original state.

適用対象

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