Show select button when validation fail for MaxFileInputsCount="1"

[Benjamin]

hi.

i would like to check how do i enable the "Select" button when the validation fails?

 

my current mock up is as such

1.<telerik:RadAsyncUpload RenderMode="Lightweight" MultipleFileSelection="Disabled" MaxFileSize="500000" OnClientValidationFailed="validationFailed" AllowedFileExtensions="jpg,jpeg,png" MaxFileInputsCount="1" runat="server" ID="fileCourseImage" PostbackTriggers="btnSubmit">
2.</telerik:RadAsyncUpload>

[Benjamin]

and would like to also check how do i call a JS function when there is change to this control. i.e, user delete the file or user upload file

[Benjamin]

to add on i have tried using 

OnClientFilesUploaded="myJSfunction()"

OnClientFileUploadRemoved="myJSfunction()"

but upon page loaded, be it inital page load or after returning from a postback, either of the 2 event keep being triggered. once i remove them even is working normally

[Ivan Danchev]

Hello Benjamin,

The behavior with the Select button hiding when the selected file fails the validation is a bug. We logged it and will do our best to fix it as soon as possible. We are sorry for any inconvenience it might have caused you.

The bug's status can be tracked on our Feedback Portal.

As a token of gratitude for reporting this issue I updated your Telerik points.

Regards,
Ivan Danchev
Telerik by Progress