In the previous article, when the meta tag is dynamically added to the page in the CS file, the "control contains code blocks (I .e.), so the control set cannot be modified" error occurs. Solution

Use the following method in the CS file to dynamically add meta tags to the page.CodeBlock (that is, <%... %>), the control set cannot be modified.

 

// Set keywords and page descriptions
Public void setmeta (string key, string des)
{
Htmlmeta
KEYWORDS = new htmlmeta (), // keywords
Description = new htmlmeta (); // description
Keywords. Name = "keywords ";
Keywords. content = key;

Description. Name = "Description ";
Description. content = des;

Page. header. Controls. Add (keywords );
Page. header. Controls. Add (description );
}

 

Solution:

Run the <JavaScript> </JavaScript> code block of this page and its master page (if any) from

The code block is taken out and put into the body. The problem is solved.