/// <summary>
/// Handles a change to a User record in the data model.
/// </summary>
/// <param name="sender">The object that originated the event.</param>
/// <param name="userRowChangeEventArgs">The event arguments.</param>
private void OnUserRowDeleted(Object sender, DataModel.UserRowChangeEventArgs userRowChangeEventArgs)
{
// This will delete the item from the list when it is deleted from the data model.
if (userRowChangeEventArgs.Action == DataRowAction.Delete)
{
Int32 index = this.BinarySearch(userItem => userItem.UserId, userRowChangeEventArgs.Row.UserId);
if (index >= 0)
{
this.RemoveAt(index);
}
}
}
/// <summary>
/// Handles a change to a User record in the data model.
/// </summary>
/// <param name="sender">The object that originated the event.</param>
/// <param name="userRowChangeEventArgs">The event arguments.</param>
private void OnUserRowChanged(Object sender, DataModel.UserRowChangeEventArgs userRowChangeEventArgs)
{
// We're only interested in additions and changes in this handler.
if (userRowChangeEventArgs.Action == DataRowAction.Add || userRowChangeEventArgs.Action == DataRowAction.Change)
{
// If the item doesn't exist, it is added. If it exists, it's updated.
Int32 index = this.BinarySearch(userItem => userItem.UserId, userRowChangeEventArgs.Row.UserId);
if (index < 0)
{
this.Insert(~index, new UserItem(userRowChangeEventArgs.Row));
}
else
{
this[index].Copy(userRowChangeEventArgs.Row);
}
}
}
/// <summary>
/// Handles a change to the DataModel.User table.
/// </summary>
/// <param name="sender">User that generated the event.</param>
/// <param name="userRowChangeEvent">The event arguments.</param>
void OnChangeUserRow(Object sender, DataModel.UserRowChangeEventArgs userRowChangeEvent)
{
// Update the entire collection when the user data changes.
this.UpdateCollection();
}
