public Dictionary <string, string> UpdateImage(int mediaId, string style, string linkTarget)
{
legacyAjaxCalls.Authorize();
//load the control with the specified properties and render the output as a string and return it
Page page = new Page();
string path = Umbraco.Core.IO.IOHelper.ResolveUrl(Umbraco.Core.IO.SystemDirectories.Umbraco) + "/controls/Images/ImageViewer.ascx";
ImageViewer imageViewer = page.LoadControl(path) as ImageViewer;
imageViewer.MediaId = mediaId;
ImageViewer.Style _style = (ImageViewer.Style)Enum.Parse(typeof(ImageViewer.Style), style);
imageViewer.ViewerStyle = _style;
imageViewer.LinkTarget = linkTarget;
//this adds only the anchor with image to be rendered, not the whole control!
page.Controls.Add(imageViewer);
imageViewer.DataBind();
StringWriter sw = new StringWriter();
HttpContext.Current.Server.Execute(page, sw, false);
Dictionary <string, string> rVal = new Dictionary <string, string>();
rVal.Add("html", sw.ToString());
rVal.Add("mediaId", imageViewer.MediaId.ToString());
rVal.Add("width", imageViewer.FileWidth.ToString());
rVal.Add("height", imageViewer.FileHeight.ToString());
rVal.Add("url", imageViewer.MediaItemPath);
rVal.Add("alt", imageViewer.AltText);
return(rVal);
}
protected override void CreateChildControls()
{
base.CreateChildControls();
//if preview is enabled, add it to the wrapper
if (_showpreview)
{
//create the preview wrapper
PreviewContainer = new HtmlGenericControl("div");
PreviewContainer.ID = "preview";
Controls.Add(PreviewContainer);
ImgViewer = (ImageViewer)Page.LoadControl(IOHelper.ResolveUrl(SystemDirectories.Umbraco) + "/controls/Images/ImageViewer.ascx");
ImgViewer.ID = "ImgViewer";
ImgViewer.ViewerStyle = ImageViewer.Style.ImageLink;
PreviewContainer.Style.Add(HtmlTextWriterStyle.MarginTop, "5px");
PreviewContainer.Controls.Add(ImgViewer);
}
}