Do ListItemVersion.VersionId and FileVersion.Id have the same value for a particular version?

Question

Hello

We use CSOM to capture FileVersion.Id for a particular file version of a file in various libraries and retrieve it later. Following are my questions -

• Are ListItemVersion.VersionId for the list item version of that file version and FileVersion.Id always the same?
• If we pass FileVersion.Id to ListItem.Version.GetById to retrieve a specific ListItemVersion and then load its fileVersion, will it load the same fileVersion? see below
  var lisItemVersion = listItem.Versions.GetById(fileVersionId) ;
clientContext.Load(listItemVersion);
clientContext.Load(listItemVersion.FileVersion, x => x.ID, x => x.Length, x => x.CreatedBy, x => x.Url);
  OR
  Do we need to load all listItem.Versions and corresponding fileVersions and check for file version id individually?
  clientContext.Load(listItem.Versions, f => f.Include(x => x.VersionId, x => x.FileVersion.ID, x => x.FileVersion.Length, x => x.FileVersion.CreatedBy, x => x.FileVersion.Url));
foreach (ListItemVersion x in listItem.Versions)
{
if (x.FileVersion.ID == fileVersionId)
{
return x.FileVersion;
}
}

Thanks

Answer 1

Hi @nyacharya,

Per my research, the ListItemVersion.VersionId and FileVersion.Id will return the same value. You could refer to the following document

https://learn.microsoft.com/en-us/dotnet/api/microsoft.sharepoint.client.listitemversion.versionid?view=sharepoint-csom#microsoft-sharepoint-client-listitemversion-versionid

https://learn.microsoft.com/en-us/previous-versions/office/sharepoint-csom/ee542654(v=office.15)

You could use the code to get sharepoint file version

// Get File using version Id
// NOTE: Every Major check In will be incremented by "512" e.g. version 1.0 will have ID = 512, Version 2.0 will have ID = 1024
//Every Minor check in will be incremented by "1" e.g version 0.1 will have ID = 1 , version 0.2 will have ID = 2

FileVersion oFileVersion = oItem.File.Versions.GetById(512);
clientcontext.Load(oFileVersion);
clientcontext.ExecuteQuery();

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