/// <summary>
/// Raises the Populating event when the AutoCompleteBox is populating the
/// selection adapter with suggestions based on the text property.
/// </summary>
/// <param name="e">The populating event data.</param>
protected virtual void OnPopulating(PopulatingEventArgs e)
{
PopulatingEventHandler handler = Populating;
if (handler != null)
{
handler(this, e);
}
}
/// <summary>
/// Handles the timer tick when using a populate delay.
/// </summary>
/// <param name="sender">The source object.</param>
/// <param name="e">The event arguments.</param>
private void PopulateDropDown(object sender, EventArgs e)
{
if (DelayTimer != null)
{
DelayTimer.Stop();
}
// Update the prefix/search text.
SearchText = Text;
// The Populated event enables advanced, custom filtering. The
// client needs to directly update the ItemsSource collection or
// call the Populate method on the control to continue the
// display process if Cancel is set to true.
PopulatingEventArgs populating = new PopulatingEventArgs(SearchText);
OnPopulating(populating);
if (!populating.Cancel)
{
PopulateComplete();
}
}
