MimeType Checking

[Anthony]

I see that the file explorer allows files to be checked by their file extension. Is it possible to check files based on mime type?

[Fiko]

Hello Anthony,

Yes, you need to set a custom FileBrowserContentProvider and override the StoreFile method. In this method you can get the MIME type of the uploaded file. For your convenience I have attached a demo showing how this can be implemented.

I hope this helps.

Kind regards,
Fiko
the Telerik team

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[Ram Adduri]

I saw your demo application. its nice and working fine but only problem is it should show a message once he tried to upload file. is there any way to show that message also one more help i need that is there any way that i need to open olny specified extension files.

Thansk,
Ram

[Dobromir]

Hi Ram,

In order to pop-up a message from the code behind you need to register client script to the page using the approach given in the following KB article:
Calling radalert from codebehind (all versions of RadWindow)

Regarding the opened files, RadFileExplorer fires a client event OnClientFileOpen and you can use the following approach to check the file extension:

<telerik:RadFileExplorer ID="RadFileExplorer1" runat="server" OnClientFileOpen="OnClientFileOpen" EnableOpenFile="true">
    <Configuration ViewPaths="~/" />
</telerik:RadFileExplorer>

<script type="text/javascript">
    function OnClientFileOpen(sender, args)
    {
        var item = args.get_item();

        if (item.get_extension())
            alert("The selected item's extension is: " + item.get_extension());
        else
            alert("The selected item is a folder");

        //cancles the event
        args.set_cancel(true);

    }
</script>

I hope this helps.

Sincerely yours,
Dobromir
the Telerik team

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