Atlas学习手记(11):使用ModalPopup Extender
ModalPopup是AtlasControlToolkit中提供的一个Extender,本文将会用它来实现一个类似模态的确定对话框,并实现灰屏效果。
主要内容
1.ModalPopup Extender介绍
2.完整示例
一.ModalPopup Extender介绍
用过网易邮箱的朋友,都应该对这个界面非常熟悉,有一个确定对话框(其实不是对话框),并且具有灰屏效果:
本文将看看如何使用ModalPopup Extender来实现类似于这样的效果。ModalPopup的示例代码如下,每个ModalPopupExtender都必须添加ModalPopupProperties:
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它的属性如下:
属性 |
说明 |
TargetControlID |
触发ModalPopup的控件ID |
PopupControlID |
作为ModalPopup显示的控件ID |
OkControlID |
确定控件ID |
OnOkScript |
确定后要执行的JS代码 |
CancelControlID |
取消控件ID |
OnCancelScript |
取消后要执行的JS代码 |
BackgroundCssClass |
当显示ModalPopup时的背景CSS样式 |
DropShadow |
是否为ModalPopup添加drop-shadow效果 |
二.完整示例
下面我们看这个具体的示例[来自于http://blogs.vertigosoftware.com/],点击一个删除按钮,弹出确定对话框,如果用户选择YES,将在街面上显示Item deleted,否则显示Action canceled。首先我们用一个Panel来作为Popup对话框,在它上面有提示的文本,确定和取消按钮:
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这里特别要注意一下的就是为Panel设置Style="display: none",在初始的界面中隐藏,直到点击按钮的时候才会触发它显示。然后用一个Button来做为TargetControl,用来触发ModalPopup,用Label显示文本。
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下面就是添加ModalPopupExtender了,设置它的相关属性如下:
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定义CSS样式,为了实现灰屏效果,注意modalBackground样式:
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最后编写一点简单的JS脚本,作为OnOkScript和OnCancelScript:
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至此,大功告成。编译运行:
点击按钮后就可以看到效果了: