how to add a div to container div in c# code behind

Question

ASP.NET, C#

As the title suggests I was wondering if anyone knew how to programatically (c# code behind file) add a div to another a container div (in the aspx page)

Answer 1

This may be a very old question but I would like to add my solution for helping:

First, to the "div" you already have in your page (the one you want to add another "div" to) give the runat="server" property so you can access it from code behind, it would look like this:

Then in your Page_Load() method add the following:

protected void Page_Load(object sender, EventArgs e)
{
   //We create our new div
   System.Web.UI.HtmlControls.HtmlGenericControl newDiv = 
     new System.Web.UI.HtmlControls.HtmlGenericControl("DIV");
   newDiv.ID = "newSuperDIV"; //<---Give and ID to the div, very important!
   newDiv.Style.Value = "background-color:white; height:61%;"; //<---Add some style as example
   newDiv.Attributes.Add("class", "amazingCssClass"); //<---Apply a css class if wanted
   superDiv.Controls.Add(newDiv); //<---Add the new div to our already existing div
}

Genearte your div directly inside the Page_Load function so it will assure that exists after any postback, avoid generating it inside code blocks like (!IsPostBack){} otherwise it will not exist in your page.