how to render my custom web-part as soon as i insert on the page?

Question

i have created a web-part that user will define the url to render and after user insert the web part on the page it did not renders, user have to edit and enter the url and click apply or ok button in the prop.

here is my code i am using...

string SiteUrl = SPContext.Current.Site.Url;//Get the url of current site
                using (SPSite site = new SPSite(SiteUrl))
                {
                    SPWeb web = site.OpenWeb();
                    SPFile webPartPage = web.GetFile(SPContext.Current.ListItemServerRelativeUrl);
                    SPLimitedWebPartManager webPartManager = webPartPage.GetLimitedWebPartManager(System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared);
                    web.AllowUnsafeUpdates = true;
                    pvwp.Title = WebPart.WebPartTitle;
                    pvwp.Description = WebPart.WebPartDescription;
                    if (string.IsNullOrEmpty(WebPart.WebPartContentLink.ToString()))
                    {
                        pvwp.ContentLink = "http://www.cnn.com";
                    }

                    pvwp.Width = "10in";
                    pvwp.Height = "15in";

                    pvwp.ContentLink = WebPart.WebPartContentLink.ToString();
                    //webPartManager.AddWebPart(pvwp, "TOP", 0);
                    this.Controls.Add(pvwp); 
                } 

Answer 1

To get the page viewer webpart to display in your webpart, just instantiate a new instance of the PageViewerWebPart object, set the properties with the value from the webpart property, and add it to the Controls for the webpart.

[ToolboxItemAttribute(false)]
public class WebPart1 : System.Web.UI.WebControls.WebParts.WebPart
{

    private string _ViewerInformation = null;

    [Personalizable(PersonalizationScope.Shared)]
    [WebBrowsable(true)]
    [System.ComponentModel.Category("PageViewer Filter")]
    [WebDisplayName("List with ViewerInformation")]
    [WebDescription("The list on the current site where the user information is stored.")]
    public string listWithViewerInformation
    {
        get
        {
            if (_ViewerInformation == null)
            {
                _ViewerInformation = string.Empty;
            }
            return _ViewerInformation ;
        }
        set { _ViewerInformation = value; }
    }
    protected override void CreateChildControls()
    {
        PageViewerWebPart pvwp = new PageViewerWebPart();
        pvwp.ContentLink = _ViewerInformation ;
        this.Controls.Add(pvwp);
    }
}