private void spalteEinfügenToolStripMenuItem_Click(object sender, EventArgs e)
{
if (sender is ToolStripItem menuItem)
{
if (menuItem.Owner is ContextMenuStrip owner)
{
if (owner.SourceControl is DataGridView dataGrid)
{
if (dataGrid.DataSource is DataTable dataTable)
{
var dialog = new AddColumnDialog();
if (dialog.ShowDialog() == DialogResult.OK)
{
_controller.AddColumn(dataTable, dialog.ColumnViewModel);
}
}
}
}
}
}