Question

I declared a hyperlink in asp.net as follows;

 <asp:HyperLink ID="hyp" runat="server" Text="new user"></asp:HyperLink>

but, I am not getting the underline link, where I could click on it and go to a new page.

HyperLink hyp = new HyperLink();
hyp.ID = "hyp";
hyp.NavigateUrl = "http://localhost/";
hyp.Visible = true;
Page.Controls.Add(hyp);

Answer 1

You are defining the link multiple times.

The first time is in your ASPX-page. This time only the ID– and Text-property are set.

The second time you create a new link, and this time you do not set the Text-property (which is mandatory), by using:

HyperLink hyp = new HyperLink();
hyp.ID = "hyp";

and

Page.Controls.Add(hyp);

Your code-behind should just contain:

hyp.NavigateUrl = "http://localhost/";

This part is optional, but based on your example does not seem necessary:

hyp.Visible = true;