为侧边栏仪表板创建 Web 用户控件，并为每个项目提供模式弹出窗口
您好，基本上我想创建一个控件，可以将弹出窗口添加到在页面标记中声明的菜单项。我希望语法如下：
<uc1:Sidebar id="" runat="server" enablePopup="True">
<PopUpBindings>
<PopedControlId="" BackgroundClass="" TargetItemIndex=""/>
<PopedControlId="" BackgroundClass="" TargetItemIndex=""/>
..
</PopUpBindings>
</uc1:Sidebar>
我能够使用 asmx 页面中的成员字段创建enablePopUp。如下所示
private bool _enablePopup;
public Boolean EnablePopup
{
get { return _enablePopup; }
set { _enablePopup = value; }
}
，但创建一个绑定集，如标记 1 中所示。以前从未这样做过。有人可以对此给予提示吗？ 问题2： 正在创建此用户控件，因为无法与 Repeater 的数据绑定一起创建 modalPopup。我在中继器 ItemDatabound 事件中尝试了以下操作，但会抛出异常“无法找到目标控件 Id ={0}”
mpcpnlNewBp.TargetControlID = e.Item.ID;//open modalpopup
Hi basically i want to create a Control that can add popup to menuItems which is declared in the markup of the page. I would like the syntax to be like below:
<uc1:Sidebar id="" runat="server" enablePopup="True">
<PopUpBindings>
<PopedControlId="" BackgroundClass="" TargetItemIndex=""/>
<PopedControlId="" BackgroundClass="" TargetItemIndex=""/>
..
</PopUpBindings>
</uc1:Sidebar>
I am able to create enablePopUp using Member Fields in the asmx Page. Like Below
private bool _enablePopup;
public Boolean EnablePopup
{
get { return _enablePopup; }
set { _enablePopup = value; }
}
but creating a bindings set as in markUp 1. Never done that before. Could someone give hints to this.
Question 2:
This usercontrol is being created because modalPopup could not be created along with Repeater's Databinding. I tried the below in repeaters ItemDatabound event but would throw exception "Target control Id ={0} could not be found"
mpcpnlNewBp.TargetControlID = e.Item.ID;//open modalpopup
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您需要的是控件上的集合属性 - 请参阅来自 MSDN 的示例代码来了解一下。
如果需要更多设计器支持，例如用于编辑属性的 UI，那么您需要创建集合编辑器 - 检查
编辑：
对于中继器等模板化控件，需要在正确的父控件上下文中找到目标控件，而模态弹出窗口无法做到这一点。解决方案是在页面/用户控件上使用虚拟（隐藏）控件作为模式弹出窗口的目标控件，然后使用扩展器的 java 脚本 API 根据需要隐藏/显示弹出窗口（请参阅 本文（适用于客户端 API）。
What you need is Collection properties on your control - see this example code from MSDN to get an idea.
If more designer support such as UI for editing properties is needed then you need to create Collection Editor - check this related example.
EDIT:
With templated controls such as repeater, target control needs to be found in the correct parent control context which Modal Popup cannot do. The solution is to use a dummy (hidden) control on the page/user control as a target control for the modal popup and then use extender's java-script API to hide/show popup as per needs (see this article for client side API).