Check Out Item(String)
Checks the specified item out of source control.
[System.Runtime.InteropServices.DispId(5)] public bool CheckOutItem (string ItemName);
The full path to the file to check out.
A Boolean value indicating
true if the item was successfully checked out; otherwise,
CheckOutItem checks out a project item that is under source control. This checks it out via the owning project and returns whether the checkout was successful.