/*+---------------------------------------------------------------------+
| |
| TextBox Event Handling |
| |
+---------------------------------------------------------------------*/
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
if (_textChangedByCode || Disabled || _dataProvider == null)
{
return;
}
var text = TextBox.Text;
if (string.IsNullOrEmpty(text))
{
_popup.IsOpen = false;
return;
}
if (_asynchronous)
{
if (_asyncThread != null && _asyncThread.IsAlive)
{
_asyncThread.Interrupt();
}
_asyncThread = new Thread(() =>
{
try
{
if (AsyncDelay > 0)
{
Thread.Sleep(AsyncDelay);
}
var dispatcher = Application.Current.Dispatcher;
string currentText = dispatcher.Invoke(new Func <string>(() => TextBox.Text)).ToString();
if (text != currentText)
{
return;
}
var items = _dataProvider.GetItems(text);
currentText = dispatcher.Invoke(new Func <string>(() => TextBox.Text)).ToString();
if (text != currentText)
{
return;
}
dispatcher.Invoke(new Action(() => PopulatePopupList(items)));
}
catch (ThreadInterruptedException tie)
{
Debug.Print("Interrupted");
}
})
{
IsBackground = true
};
_asyncThread.Start();
}
else
{
var items = _dataProvider.GetItems(text);
PopulatePopupList(items);
}
}
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
if (_textChangedByCode || Disabled || _dataProvider == null)
{
return;
}
if (popupDelay == null)
{
popupDelay = new Timer(_ =>
{
var dispatcher = Application.Current.Dispatcher;
string text = (string)dispatcher.Invoke(new Func <string>(() => GetWordUnderCursor()));
if (String.IsNullOrEmpty(text))
{
dispatcher.Invoke((Action)(() => _popup.IsOpen = false));
}
else
{
var items = _dataProvider.GetItems(text).ToList();
dispatcher.Invoke((Action)(() => PopulatePopupList(items)));
}
}, null, 100, Timeout.Infinite);
}
else
{
popupDelay.Change(100, Timeout.Infinite);
}
}
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
if (callFunction == 1)
{
if (_textChangedByCode || Disabled || _dataProvider == null)
{
return;
}
var text = _textBox.Text;
if (string.IsNullOrEmpty(text))
{
_popup.IsOpen = false;
return;
}
if (_asynchronous)
{
if (_asyncThread != null && _asyncThread.IsAlive)
{
_asyncThread.Abort();
}
_asyncThread = new Thread(() =>
{
List <string> theSaurisItems = new List <string>();
var items = _dataProvider.GetItems(text, out theSaurisItems);
var dispatcher = Application.Current.Dispatcher;
var currentText = dispatcher.Invoke(new Func <string>(() => _textBox.Text)).ToString();
if (text != currentText)
{
return;
}
dispatcher.Invoke(new Action(() => PopulatePopupList(items, theSaurisItems)));
});
_asyncThread.Start();
}
else
{
List <string> theSaurisItems = new List <string>();
var items = _dataProvider.GetItems(text, out theSaurisItems);
PopulatePopupList(items, theSaurisItems);
}
}
}