public void Insert()
{
ControlCollection controlCollection = new ControlCollection(new Control());
Control newControl = new Control();
Control controlWithName = new Control
{
Name = "Special Control"
};
// Test insert while out of bounds
try
{
controlCollection.Insert(5, newControl);
Assert.Fail("Insert failed to throw an IndexOutOfRangeException");
}
catch (IndexOutOfRangeException) { }
// Test insert with no other controls currently in collection
controlCollection.Insert(0, newControl);
Assert.AreEqual(1, controlCollection.Count, DebugUtilities.FailedAssertMessage("Insert()", 2, 1, controlCollection.Count));
for (int i = 0; i < 10; ++i)
{
controlCollection.Add(new Control());
}
// Test Basic Insert
controlCollection.Insert(4, controlWithName);
Assert.AreEqual(controlWithName.Name, controlCollection[4], DebugUtilities.FailedAssertMessage("Insert()", 2, controlWithName.Name, controlCollection[4]));
controlCollection.Remove(controlWithName);
// Test Smart Insert
controlCollection.Insert(8, controlWithName);
Assert.AreEqual(controlWithName.Name, controlCollection[8], DebugUtilities.FailedAssertMessage("Insert()", 3, controlWithName.Name, controlCollection[8]));
controlCollection.Remove(controlWithName);
}
/// <summary>
/// Replaces a specific index in a control collection
/// </summary>
/// <param name="originalCollection">The collection that is being modified</param>
/// <param name="indexToReplace">The index to be replaced</param>
/// <param name="newControl">The new control to replace the old control</param>
public static void Replace(this ControlCollection originalCollection, int indexToReplace, Control newControl)
{
originalCollection.Insert(indexToReplace, newControl);
originalCollection.RemoveAt(indexToReplace + 1);
}