private void Lb_ItemCheck(object sender, ItemCheckEventArgs e)
{
Enum changedItem = (Enum)lb.Items[e.Index];
if (e.NewValue == CheckState.Checked)
{
_value = _value.SetFlags(changedItem);
}
else
{
_value = _value.ClearFlags(changedItem);
}
OnCheckedChanged?.Invoke(this, changedItem);
textbox.Text = _value.ToString();
}
/// <summary>
/// 删除标识符并返回新值
/// </summary>
/// <typeparam name="T">枚举类型</typeparam>
/// <param name="variable">枚举值</param>
/// <param name="flag">需要删除的标识符</param>
/// <returns>返回新值</returns>
public static T ClearFlag <T>(this Enum variable, T flag)
{
return(variable.ClearFlags(flag));
}
