asp：从codebehind访问repeateritem itemtemplate内部的html元素

Question

How to access HTML "input type="checkbox" data-item="myItems" id="id123"" in ascx.cs file when the input is in asp:repeater ? This does not work, cuz findcontrol only works with system.web.ui.control:

var checkBox = (System.Web.UI.HtmlControls.HtmlInputCheckBox)e.Item.FindControl("id123");

This:

var checkBox = (Checkbox)e.Item.FindControl("id123");

will work if I make asp:checkbox instead html input.
But then another question: What is the equivalent for html input "data-" attribute in asp:checkbox ?

Answer 1

Answer to first part :

You need to set runat="server" on the html input.

<input type="checkbox" id="id123" data-item="myItems" runat="server".....

Answer to second part :

You can specify any attribute on server controls and they will be spewed as is in the generated html. So you can have:

<asp:checkbox id="id123" data-item="myItems" runat="server"....

Answer 2

您需要在要从背后的代码访问的任何元素中包含runat="server"属性。