C# SharePoint Error: The server does not allow messages larger than 2097152 bytes

Question

I am getting SharePoint Error: The server does not allow messages larger than 2097152 bytes error while uploading large file.

Can you please help me Below is my code:

        Folder currentRunFolder = site.GetFolderByServerRelativeUrl(barRootFolderRelativeUrl + "/" + newFolderName);
        FileCreationInformation newFile = new FileCreationInformation { Content = System.IO.File.ReadAllBytes(@p), Url = Path.GetFileName(@p), Overwrite = true };
        currentRunFolder.Files.Add(newFile);
        currentRunFolder.Update();

        context.ExecuteQuery();

Adam Adam · Accepted Answer · 2021-05-06T19:23:35

this is SP online or onPrem? if onPrem You may first try to extend a bit the settings

extend the max file upload on CA for this web application,
set on CA for this web application 'web page security Validation' on Never (in this link there is a screen how to set it)
extend timeout on IIS

also for large files you may consider using Microsoft.SharePoint.Client.File.SaveBinaryDirect method

please check one of my previous answers to a very similar method Upload file to sharepoint with httpclient here I give an example for SP 2013 (but would work in SP 2010 and 2016 as well) to upload a file under 2MB using Files.Add and larger files using SaveBinaryDirect

C# SharePoint Error: The server does not allow messages larger than 2097152 bytes

1 Answers