Ajax Toolkit 中的CalendarExtender控件

< asp:TextBox runat = " server "  ID = " TextBox1 "  MaxLength = " 10 " ></ asp:TextBox >< asp:ImageButton ID = " ImageButton1 "  runat = " server "  SkinID = " CalendarImageButton "  OnClientClick = " javascript:return false; "   />< ajaxToolkit:CalendarExtender runat = " server "  TargetControlID = " TextBox1 "  CssClass = " ajaxToolkit-CalendarExtender "  Format = " MM/dd/yyyy "  PopupButtonID = " ImageButton1 "  id = " CalendarExtender1 "   />

１．使用CalendarExtender控件的页面，必需包括Ajax Extensions控件ScriptManager；
２．CalendarExtender控件的属性Format可定制日期显示格式，默认值为＂d＂，显示为＂1/25/2007＂．如果要定制日期格式为＂2007-01-25＂，应使用字符串＂yyyy-MM-dd＂，而不是＂yyyy-mm-dd＂；
３．如上图所示，若想从TextBox控件中取到日期值，请保证TextBox控件的ReadOnly属性的值为＂false＂，若设置为＂true＂，将无法从TextBox控件中取到值．

4．注意TargetControlID, PopupButtonID的属性.