Thread: How can I change the meta description tag contents in CodeBehind?

Hi,

For one of my static pages I need to dynamically change the meta description from the CodeBehind file (myPage.aspx.cs)

I did some research and found that the way to do this in .NET 3.5 is:

Code:

protected void Page_Load(object sender, System.EventArgs e)
{
   <..other existing code..>			
			
   //set meta tag description
   HtmlMeta hm1 = new HtmlMeta();
   hm1.Name = "description";
   hm1.Content = "Test Description";
					
   Page.Header.Controls.Add(hm1);

}

However, instead of modifying the existing tag, it creates a duplicate <meta name="description" content=""> just before the </header> tag with content being populated from ASPDNSF. The description I am inputting in the hm1.Content is ignored.

This only works if I delete the <meta name="description" content=""> tag from my template.master. With the meta tag deleted from the template everything works fine.

But since other pages need to pull the description from ASPDNSF I cannot just simply delete the meta tag in template.master.

I have also tried putting an if statement in the template.master file to detect the filename and only write the meta tag if the page is not myPage.aspx but I received an error saying that code blocks are not allowed in that section.

How can I edit the description in the aspx.cs file?

Thanks in advance,

I actually found the code that ASPDNSF uses in SkinBase.cs to do this from the data entered in the admin for topics etc.

so I copied that and modified it a little for my aspx.cs file and everything works great now!

Code:

protected void Page_Load(object sender, System.EventArgs e)
{
   <..other existing code..>

   if (this.Header != null)
   {
      foreach (Control c in this.Header.Controls)
      {
         HtmlMeta hm1 = c as HtmlMeta;
         if (hm1 != null && hm1.Name.Equals("description", StringComparison.InvariantCultureIgnoreCase))
         {
            hm1.Content = "enter new description here";
          }
       }
    }
}