One of the tasks I had recently was to get not only a web page into a SharePoint page but also pass in parameters from the Query String. Let’s say I am going to create the page at http://localhost/sharepoint/mypage.aspx in a normal way. In order to host a page inside that SharePoint page, we can use a Page Viewer Web Part, but this limits what can be done. Instead, we can create a custom web part to do the work…

public class CustomWebPart : WebPart {
    public override void Render(HtmlTextWriter writer){
        string rawUrl = Context.Request.Url.OriginalString;
        int index = rawUrl.IndexOf("?");

        string query = String.Empty;
        if(index != -1) query = rawUrl.Substring(index);

        writer.Write(
            "