Question

I used Facebook like button in ASP .Net my web site master page and when sharing page link in Facebook. I want to change the thumbnail attach with link to each pages, I get image url back end of my asp website and assign to variable and when I’m trying to bind it to front end as below it doesn’t get actual value

<link rel="image_src" type="image/jpeg" href=" <% = ImgLink %>"/>

(ImgLink is dynamic variable I got from my back end of code ) at least it doesn’t suggest in visual studio.

Answer 1

Try

<asp:PlaceHolder runat="server">
    <link rel="image_src" type="image/jpeg" <%= "href='" + ImgLink + "'"%>/>
</asp:Placeholder>

Here is a detailed explanation why this is working.