[CLOSED] File Type Filter in FileUploadField

Hi, Can you please suggest how to put a file type filter to restrict users only to select jpg or png. I am using following FileUploadField code -

Code:

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X.FileUploadField()
        .ID("UploadSignatureEnglishID")
        .ButtonOnly(true)
        .ButtonText("Upload Signature in English")
        .Icon(Icon.ImageAdd)
        .DirectEvents(de =>
        {
            de.Change.Url = Url.Action("UploadSignInEnglish");
            de.Change.FormID = "BFID";
            de.Change.Before = @"Ext.Msg.wait('Uploading...', 'Uploading');";
            de.Change.Success = "fnhandleSignUploadEnglish(result)";
            de.Change.Failure = @"Ext.Msg.show({
                    title  : 'Error',
                    msg    : 'Error during uploading',
                    minWidth: 200,
                    modal  : true,
                    icon    : Ext.Msg.ERROR,
                    buttons : Ext.Msg.OK
                });";
        })

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Thanks in advance.

Hello @Barnali!

Use a validator on the field:

Code:

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.Validator(v => v.Handler=@"if (/^.*\.(txt|exe)/i.exec(value)) return true; return 'Choose a valid file extension.';")

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Hope this helps!