fileexplorer validation

[Ronen]

How do i validate upon submitting a form that the user actually selected a file in the file explorer?

[Fiko]

Hello Ronen,

Selecting a file in RadFileExplorer does not cause postback to the server. In your case you need to implement your custom logic using the OnClientItemSelected event of the control. This event is fired when an item is selected.

All the best,
Fiko
the Telerik team

[Ronen]

i already used another text box that shows the path of the file, and i used a validator to check if it's empty or doesn't contain a file:

 

 

 

function validateFile(source, args) {

 

 

 

var regex = /.*\..{3,4}/;

 

 

 

 

 

 

var textBoxFileName = document.getElementById('<%=TextBoxFileName.ClientID%>');

 

 

 

if (textBoxExistingFile != null && textBoxFileName != null)

 

{

 

 

if (textBoxFileName.value.length == 0 ||

 

textBoxFileName.value.search(regex) == -1)

{

args.IsValid =

 

false;

 

 

 

return;

 

}

}

args.isValid =

 

true;

 

}

 

 

function fillFileName(sender, args) {

 

 

var label = document.getElementById('<%=TextBoxFileName.ClientID%>');

 

 

if (label != null)

 

label.innerText = args.get_item().get_path();

OnClientItemSelected(sender, args);

}

 

<telerik:RadFileExplorer ID="RadFileExplorer1" runat="server" Configuration-MaxUploadFileSize="307200"

 

 

EnableCreateNewFolder="false" EnableOpenFile="true" OnClientItemSelected="fillFileName">

 

 

<Configuration SearchPatterns="*.jpg,*.jpeg,*.JPG,*.JPEG,*.gif,*.GIF,*.png,*.PNG" />

 

 

</telerik:RadFileExplorer>