OnClientFilesDropping
The client-side FilesDropping event is raised when the user drops the files for uploading in the file list of RadFileExplorer.
To handle this event, simply write a JavaScript function that can be called when the event occurs. Then assign the name of this function as the value of the OnClientFilesDropping property of the control.
The client-side OnClientFilesDropping event handler receives two arguments:
Sender: The RadFileExplorer object that fired the event.
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Event arguments: A cancelable event arguments object of type Sys.CancelEventArgs that exposes the following methods:
Table 1: OnClientFilesDropping Event Arguments Object
Name Parameters Return Type Description get_cancel() Boolean Returns a value that indicates whether the event is cancelled. get_count() Integer Returns the count of the dropped items. get_dropArgs() Object Returns the drop arguments of the underlying RadAsyncUpload control. set_cancel(value) Boolean Sets whether the event will be cancelled (if true is passed).
Example 1: Handle the RadFileExplorer's client-side FilesDropping event.
<telerik:RadFileExplorer ID="RadFileExplorer1" runat="server" OnClientFilesDropping="onClientFilesDropping">
<Configuration ViewPaths="~/Images" DeletePaths="~/Images" UploadPaths="~/Images" />
</telerik:RadFileExplorer>
<script>
function onClientFilesDropping(fileExplorer, args) {
var filesCount = args.get_count();
alert("You have are about to upload " + filesCount + " files.");
}