How to find a HtmlGenericControl using a Class
Question
I'm trying to figure out how to find a "div" which is in my main .aspx page from a class, is this possible? If so how? I've tried the code below but is not working
HtmlGenericControl step1 = (HtmlGenericControl)Page.FindControl("step1")
I know this is the way I would do it in the code behind file but in this case I want to do it from a class file.
Thank you in advance.
Basically what I'm trying to accomplish is this, I have multiple divs in my page all of the have runtat="server" visible="false" when certain criteria is met I want to be able to change the visible="true". I have this scenario in multiple pages so I want to be able to create a Class and check for the conditions there and through this way make the div visible or un-visible
4 answers
solution1
1 ACCPTED 2012-10-17 05:32:07
The div element must have the runat="server" attribute:
<body>
<form id="form1" runat="server">
<div id="step1" runat="server"></div>
</form>
</body>
Now, you can find the control with a method in a separated class, which is called from the code behind class of the page:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Class1 class1 = new Class1();
class1.FindDiv(this);
}
}
Separated class:
public class Class1
{
public HtmlGenericControl FindDiv(Page page)
{
HtmlGenericControl step1 = (HtmlGenericControl)page.FindControl("step1");
return step1;
}
}
solution2
0 2012-10-17 05:29:02
If you use ASP Panel instead of a div u can access it and Panel renders as div. If u give runat="server" to a div u should be able to access it.
solution3
0 2012-10-17 05:32:21
You cannot do that if it is not a server side control..
If it is a HTML control you need to set runat="server" attribute to the div to find it in code behind..
solution4
0 2012-10-20 09:36:39
Try
HtmlGenericControl div = (HtmlGenericControl)this.FindControl("div1");
Note : In order to make this code work, you need to have runat="server" property at aspx page.
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