RadUpload has been replaced by RadAsyncUpload, Telerik’s next-generation ASP.NET upload component. If you are considering Telerik’s Upload control for new development, check out the documentation of RadAsyncUpload or the control’s product page. If you are already using RadUpload in your projects, you may be interested in reading how easy the transition to RadAsyncUpload is and how you can benefit from it in this blog post. The official support for RadUpload has been discontinued in June 2013 (Q2’13), although it is still be available in the suite. We deeply believe that RadAsyncUpload can better serve your upload needs and we kindly ask you to transition to it to make sure you take advantage of its support and the new features we constantly add to it.
The RadUpload control is laid out in rows, as shown below:
The number of rows is controlled by the InitialFileInputsCount and MaxFileInputsCount properties.
Each row always contains a file input area, which behaves like an HTML input element with type set to "file", but has a more customizable look and feel.
To the left of the file input area appears an optional check box. The check box allows users to select a row for deletion. The check box appears if the ControlObjectsVisibility property includes "CheckBoxes".
To the right of the file input area appear an optional clear button and/or remove button. The clear button deletes the current value in the file input area, and the remove button deletes the entire row. These buttons appear if the ControlObjectsVisibility property includes "ClearButtons" and/or "RemoveButtons".
Below the rows appears the optional add button. The add button lets users add additional rows (up to MaxFileInputsCount). The add button appears if the ControlObjectsVisibility property includes "AddButton".
Also below the rows appears the optional delete selected button. This button behaves like the remove buttons, except that it operates on all rows that are selected using the check boxes. The delete selected button appears if the ControlObjectsVisibility property include "DeleteSelectedButton"