private void Run1()
{
// 明示キャスト
object obj = new EditBox();
IControl control = (IControl)obj;
IDataBound dataBound = (IDataBound)obj;
}
private void Run0()
{
// 暗黙キャスト
EditBox editBox = new EditBox();
IControl control = editBox;
IDataBound dataBound = editBox;
}