DataTable.RejectChanges メソッド

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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