Get Sharepoint Document FileVersions using C#

Question

Hi:
My question is to retrieve document version history including the current version.
I used the below, and I am able to get the version history but in that list current version data is not included. instead current version details are loaded into the file item.

List list = ctx.Web.Lists.GetByTitle("DocumentLibraryTitle");
ListItem item = list.GetItemById(1);
ListItemVersionCollection versions = item.Versions;
Microsoft.SharePoint.Client.File file = item.File;
FileVersionCollection fileVersions = file.Versions;
ctx.Load(list); ctx.Load(item); ctx.Load(versions);
ctx.Load(file); ctx.Load(fileVersions);
ctx.ExecuteQuery();

My requirement is to load all the versions of the document into a combobox and based on the selection I need to document that versioned file.
I request someone to provide me a solution.

Answer 1

Hi @Deepthi Vangapandu
We can use FileVersion.IsCurrentVersion property to check and get current version. Please refer to the following code

using (ClientContext clientContext = new ClientContext("http://xxx.sharepoint.com/sites/MySiteCollection"))  
{  
List targetList = clientcontext.Web.Lists.GetByTitle("Documents");  
ListItem oItem = targetList.GetItemById(13);  
CamlQuery oQuery = new CamlQuery();  
   
oQuery.ViewXml = @"<View><Query><Where>  
<Eq>  
<FieldRef Name='LinkFilename' />  
<Value Type='Text'>document.docx</Value>  
</Eq>  
</Where></Query></View>";  
   
ListItemCollection oItems = targetList.GetItems(oQuery);  
clientcontext.Load(oItems);  
clientcontext.ExecuteQuery();  
   
oItem = oItems.FirstOrDefault();  
   
FileVersionCollection oFileVersionCollection = oItem.File.Versions;  
clientcontext.Load(oFileVersionCollection);  
clientcontext.ExecuteQuery();  
   
foreach (FileVersion oFileVersion in oFileVersionCollection)  
{  
if (oFileVersion.IsCurrentVersion)  
{  
Console.WriteLine("Current Verrsion of the file: " + oFileVersion.VersionLabel);  
}  
}  
}  

Here is the details about FileVersion.IsCurrentVersion property
https://learn.microsoft.com/en-us/previous-versions/office/sharepoint-csom/ee539266(v=office.15)

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