本文整理匯總了C#中System.Windows.Forms.Button.Invalidate方法的典型用法代碼示例。如果您正苦於以下問題：C# Button.Invalidate方法的具體用法？C# Button.Invalidate怎麽用？C# Button.Invalidate使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Windows.Forms.Button的用法示例。
在下文中一共展示了Button.Invalidate方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: UpdateButtonEnabled
private void UpdateButtonEnabled(Button button, Command command)
{
button.Enabled = command != null && command.Enabled;
//doesn't work becuase the forecolor is ignored when disabled...
button.ForeColor = button.Enabled ? _enabledToolbarColor : _disabledToolbarColor;//.DimGray;
button.Invalidate();
}示例2: UpdateButtonEnabled
private void UpdateButtonEnabled(Button button, Command command)
{
var enabled = command != null && command.Enabled;
// DuplicatePage and DeletePage are a bit tricky to get right.
// See https://silbloom.myjetbrains.com/youtrack/issue/BL-2183.
if(enabled && command.Implementer != null)
{
var target = command.Implementer.Target as EditingModel;
if(target != null)
{
if(command is DuplicatePageCommand)
enabled = target.CanDuplicatePage;
else if(command is DeletePageCommand)
enabled = target.CanDeletePage;
}
}
//doesn't work because the forecolor is ignored when disabled...
var foreColor = enabled ? _enabledToolbarColor : _disabledToolbarColor; //.DimGray;
// BL-2338: signficant button flashing is apparently caused by setting these and
// invalidating when nothing actually changed. So only do it if something DID change.
if(enabled != button.Enabled || button.ForeColor != foreColor)
{
button.Enabled = enabled;
button.ForeColor = foreColor;
button.Invalidate();
}
}