Public Class TransactFile 
   Inherits TempFile
   Implements CSharpTest.Net.Interfaces.ITransactable 

public class TransactFile : TempFile, CSharpTest.Net.Interfaces.ITransactable  

string testdata = Guid.NewGuid().ToString();

using (TempFile replace = new TempFile())
using (TransactFile temp = new TransactFile(replace.TempPath))
{
    temp.WriteAllText(testdata);
    Assert.IsTrue(temp.Exists);
    temp.Rollback();
    Assert.IsFalse(temp.Exists);
}

Dim testdata As String = Guid.NewGuid().ToString()

Using replace As New TempFile()
    Using temp As New TransactFile(replace.TempPath)
        temp.WriteAllText(testdata)
        Assert.IsTrue(temp.Exists)
        temp.Rollback()
        Assert.IsFalse(temp.Exists)
    End Using
End Using