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Foundations of ASP.NET AJAX phần 8

hộp kiểm tra hoàn thành bởi các liên kết Cập nhật, bạn sẽ thấy nội dung của việc kiểm soát UpdateProgress trong khi cập nhật đang diễn ra. Hình 6-8 cho thấy bản cập nhật trong tiến trình. Bạn sẽ thấy làm thế nào để thực hiện chúng trong phần "Sử dụng Pushpins" một chút ở phần sau của chương này, | 178 CHAPTER 8 USING THE ASP.NET AJAX CONTROL TOOLKIT PART 2 other pages and upon successful entry of the required data were then redirected back to the original page. Again a perfect example of this scenario is a login page. The ModalPopup extender is ideal when there is a need in web pages to display a popup in a modal fashion. The modal pop-up is triggered by an event on the target control after which it blocks all user access to the underlying page until the user makes a selection in the modal pop-up. The pop-up itself is typically a Panel control although it could be other controls as well. This control can be positioned anywhere on the page as stated by its X and Y properties. Table 8-7 lists the main properties of this extender. Table 8-7. ModalPopup Extender Properties Property Name Description BackgroundCssClass CSS class to be applied to the background when the modal pop-up is displayed. DropShadow Boolean value indicating whether or not to display a drop shadow for the modal pop-up. CancelControlID ID of the Cancel button for the modal pop-up. OkControlID ID of the OK button for the modal pop-up. OnCancelScript Client JavaScript script to load when the modal pop-up is dismissed with the Cancel button. OnOkScript Client JavaScript script to load when the modal pop-up is dismissed with the OK button. PopupControlID ID of the control to display as a modal pop-up often a Panel control . PopupDragHandleControlID ID of the control used as the drag handle for the modal pop-up. TargetControlID ID of the control that instigates the modal pop-up. X The initial X coordinate of the modal pop-up. Y The initial Y coordinate of the modal pop-up. For a great example of the ModalPopup extender turn to the sample web site provided with the ASP.NET AJAX Toolkit and view the file ModalPopup.aspx. When you click the Click here to change the paragraph style link a modal pop-up menu appears offering a range of paragraph styling options to the user via several radio buttons. .