IPWorks Cloud 2020 Kotlin Edition

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ListVersions Method

Lists previous versions of a file resource.

Syntax

public fun listVersions(fileId: String?)

Remarks

This method lists previous versions of the file resource specified by FileId. The current version is not included in the results.

Calling this method will fire the ResourceList event once for each file version, and will also populate the Resources collection.

If there are still more file versions available to list when this method returns, the VersionMarker property will be populated. Continue to call this method until VersionMarker is empty to accumulate all pages of results in the Resources collection.

Note that Box only returns certain resource details when listing file versions; this is a limitation of the Box API that cannot be changed. Specifically, the following fields are returned:

The MaxResults configuration setting can be used to control the maximum number of results to return at once.

Note that Box only tracks file versions for paid accounts.

// ResourceList event handler.
box.OnResourceList += (s, e) => {
  Console.WriteLine(e.Name + ", Version: " + e.VersionId);
};

do {
  box.ListVersions("f:09876");

  for (int i = 0; i < box.Resources.Count; i++) {
    // Process resource versions here.
  }
} while (!string.IsNullOrEmpty(box.VersionMarker));

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IPWorks Cloud 2020 Kotlin Edition - Version 20.0 [Build 7941]