Question T3427
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Possible to bypass file size upload limit by uploading multiple files at once

created 5 years ago
  1. Set 50 Mb of file size upload limit.
  2. Choose two files that are together more than 50 Mb's. (2020_02_17_13_41_21_Window.png)
    Result: No error message about file size upload limit bypassing.
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Answers approved by surveyjs Support

created 5 years ago

Hello,

The maxSize option applies to each selected file, not to the whole size. You can introduce a new property, let's say totalSize. You can check this property in the onUploadFiles event handler before start uploading and inform user about limit exceed.

A new property can be added via the following code:

JavaScript
Survey.Serializer.addProperty("file", "maxSize:number");

and can be accessed via the question.maxSize code.

Does it fit your needs?

Thanks, Serge
SurveyJS Team

    Comments (3)
    GO GO
    Gergő Oroszi 5 years ago

      Hi,

      Is it possible to force the File field to show the error message in case if we implement the custom check? If not is there a way to show custom error messages?

      Regards
      Gergő Oroszi

      ST ST
      Serge T 5 years ago

        Hello,

        Sure. Here is the code:

        JavaScript
        question.errors.push(new Survey.ExceedSizeError(question.maxSize, question));

        Thanks, Serge
        SurveyJS Team

        GO GO
        Gergő Oroszi 5 years ago

          Thanks, This should help fixing the issue.

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