Checking if a SPFolder Exists

Ran into a colleague’s code that was incorrectly trying to check if a folder existed. It was something like:

private bool CheckFolderExists(SPWeb parentWeb, string folderName) {
    SPFolder folder = parentWeb.GetFolder(folderName);
    if (folder == null) {
        return false;
    }
    else {
         return true;
    }
}

however this always returns an actual SPFolder object, and the correct way is to check the Exists property of the returned object ie:

private bool CheckFolderExists(SPWeb parentWeb, string folderName) {
    SPFolder folder = parentWeb.GetFolder(folderName);
    return folder.Exists;
}

NB: Yes, this post is almost identical to my earlier one about checking if an SPWeb object exists.

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