DataGridViewのSelectedIndexChangedイベントを取得する方法

DataGridViewのSelectedIndexChangedイベントを取得する方法

VB.NET

Private dgvCmb As DataGridViewComboBoxEditingControl = Nothing

Private Sub dgv1_EditingControlShowing(ByVal sender As Object, _
        ByVal e As DataGridViewEditingControlShowingEventArgs) _
        Handles dgv1.EditingControlShowing
    If TypeOf e.Control Is DataGridViewComboBoxEditingControl Then
        Dim dgv As DataGridView = CType(sender, DataGridView)

        If dgv.CurrentCell.OwningColumn.Name = "ComboBox" Then
            Me.dgvCmb = _
                CType(e.Control, DataGridViewComboBoxEditingControl)
            AddHandler Me.dgvCmbBox.SelectedIndexChanged, _
                AddressOf dgvCmbBox_SelectedIndexChanged
        End If
    End If
End Sub

Private Sub dgv1_CellEndEdit(ByVal sender As Object, _
        ByVal e As DataGridViewCellEventArgs) _
        Handles dgv1.CellEndEdit
    If Not (Me.dgvCmb Is Nothing) Then
        RemoveHandler Me.dgvCmbBox.SelectedIndexChanged, _
            AddressOf dgvCmbBox_SelectedIndexChanged
        Me.dgvCmb = Nothing
    End If
End Sub

Private Sub dgvCmbBox_SelectedIndexChanged(ByVal sender As Object, _
        ByVal e As EventArgs)
    Dim cb As DataGridViewComboBoxEditingControl = _
        CType(sender, DataGridViewComboBoxEditingControl)
    Console.WriteLine(cb.SelectedItem)
End Sub

C#

private DataGridViewComboBoxEditingControl dgvCmb = null;

private void dgv1_EditingControlShowing(object sender,
    DataGridViewEditingControlShowingEventArgs e)
{
    if (e.Control is DataGridViewComboBoxEditingControl)
    {
        DataGridView dgv = (DataGridView)sender;

        if (dgv.CurrentCell.OwningColumn.Name == "ComboBox")
        {
            this.dgvCmb =
                (DataGridViewComboBoxEditingControl)e.Control;
            this.dgvCmbBox.SelectedIndexChanged +=
                new EventHandler(dgvCmbBox_SelectedIndexChanged);
        }
    }
}

private void dgv1_CellEndEdit(object sender,
    DataGridViewCellEventArgs e)
{
    if (this.dgvCmb != null)
    {
        this.dgvCmbBox.SelectedIndexChanged -=
            new EventHandler(dgvCmbBox_SelectedIndexChanged);
        this.dgvCmb = null;
    }
}

private void dgvCmbBox_SelectedIndexChanged(object sender,
    EventArgs e)
{
    DataGridViewComboBoxEditingControl cb =
        (DataGridViewComboBoxEditingControl)sender;
    Console.WriteLine(cb.SelectedItem);
}