本文整理匯總了VB.NET中System.Windows.Forms.DateTimePicker.DropDown事件的典型用法代碼示例。如果您正苦於以下問題：VB.NET DateTimePicker.DropDown事件的具體用法？VB.NET DateTimePicker.DropDown怎麽用？VB.NET DateTimePicker.DropDown使用的例子？那麽, 這裏精選的事件代碼示例或許可以為您提供幫助。您也可以進一步了解該事件所在類System.Windows.Forms.DateTimePicker的用法示例。
在下文中一共展示了DateTimePicker.DropDown事件的1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VB.NET代碼示例。
示例1:
' When the calendar drops down, display a MessageBox indicating
' that DateTimePicker will not accept dates before MinDateTime or
' after MaxDateTime. Use a StringBuilder object to build the string
' for efficiency.
Private Sub DateTimePicker1_DropDown(ByVal sender As Object, _
ByVal e As EventArgs) Handles DateTimePicker1.DropDown
Dim messageBuilder As New System.Text.StringBuilder
messageBuilder.Append("Choose a date after: ")
messageBuilder.Append(DateTimePicker.MinDateTime.ToShortDateString)
messageBuilder.Append(" and a date before: ")
messageBuilder.Append(DateTimePicker.MaxDateTime.ToShortDateString)
MessageBox.Show(messageBuilder.ToString())
End Sub