Upload Images to the Server | RadEditor for ASP.NET AJAX Documentation
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Upload Images to the Server

RadEditor has built-in support for uploading/deleting/inserting images. The developer can allow end-users to upload, insert and delete images in the folder structure of the web-application by setting the following properties:


As of Q2 2015 the default upload control is RadAsycnUpload. In order for the uploading to work, you need to either permit the application to read/write in App_Data folfer, or change the target folder set to the TemporaryFolder property.

For example, to enable users to upload images in the "~/Images" folder and all of its subfolders, you need to set the ImageManager-ViewPaths, ImageManager-UploadPaths, and ImageManager-DeletePaths properties as follows:

There are two approaches to set the Image Manager's paths:

<telerik:RadEditor RenderMode="Lightweight" ID="RadEditor1" runat="server"
    ImageManager-DeletePaths="~/Images" >
<telerik:RadEditor RenderMode="Lightweight" ID="RadEditor1" runat="server">
        UploadPaths="~/Images" />
string[] imagepath = {"~/Images"};
RadEditor1.ImageManager.UploadPaths = imagepath;
RadEditor1.ImageManager.ViewPaths = imagepath;
RadEditor1.ImageManager.DeletePaths = imagepath;        
Dim imagepath() As String = {"~/Images"}
RadEditor1.ImageManager.UploadPaths = imagepath
RadEditor1.ImageManager.ViewPaths = imagepath
RadEditor1.ImageManager.DeletePaths = imagepath 

Note that the imagepath variable is an array of strings and that the Images folder must be:

  • a subdirectory of your web application or
  • a virtual directory of your web application that has a physical path pointing outside of your web application.
  • a shared drive that is a virtual folder of your web application.

You should also grant full ASP.NET (WinXP) / NETWORK SERVICE (Win 2003 and Vista) account permissions to the Images Folders.

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