功能:
可以让页面中的某个区域变得可折叠,即用户可以根据喜好展开或折叠其中的内容。
属性:
TargetControlID:该扩展器目标控件ID,即将要实现折叠、展开功能的控件的ID
ExpandControlID:指定一个服务器控件的ID,当用户点击该控件时,该扩展器的目标Panel控件将展开
CollapseControlID:指定一个服务器控件的ID,当用户点击该控件时,该扩展器的目标Panel控件将折叠
Collapsed:目标Panel控件的初始化状态,true代表折叠,false代表展开
TextLabelID:指定一个服务器Label控件的ID,用来显示此时目标Panel控件的折叠/展开状态
ImageControlID:指定一个服务器端Image控件的ID,用来告知用户此时目标Panel控件的折叠、展开状态
ExpandedText:当目标Panel控件为展开状态时,TextLabelID属性所指定的Label控件中的文字
CollapsedText:当目标Panel控件为折叠时,TextLabelID属性所指定的Label控件中的文字
ExpandedImage:当目标Panel控件为展开状态时,ImageControlID属性所指定的Image控件中图片的URL
CollapsedImage:当目标Panel控件为折叠状态时,ImageControlID属性所指定的Image控件中图片的URL
实例代码:
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运行结果: