private static void ComboBoxOnDropDownOpened(object sender, EventArgs eventArgs)
{
var comboBox = (ComboBox)sender;
var cloneTextBox = comboBox.Template.FindName("EditableTextBoxClone", comboBox) as TextBox;
var originalTextBox = comboBox.Template.FindName("PART_EditableTextBox", comboBox) as TextBox;
if (cloneTextBox != null && originalTextBox != null)
{
var managedOverlayInfo = new ComboBoxAssistManagedOverlayInfo(comboBox, originalTextBox, cloneTextBox);
cloneTextBox.PreviewKeyDown += CloneTextBoxOnPreviewKeyDown;
cloneTextBox.SelectionLength = originalTextBox.SelectionLength;
cloneTextBox.SelectionStart = originalTextBox.SelectionStart;
originalTextBox.SelectionChanged += OriginalTextBoxOnSelectionChanged;
SetManagedOverlayInfo(comboBox, managedOverlayInfo);
SetManagedOverlayInfo(originalTextBox, managedOverlayInfo);
SetManagedOverlayInfo(cloneTextBox, managedOverlayInfo);
}
cloneTextBox?.Dispatcher.BeginInvoke(new Action(() =>
{
cloneTextBox.Focus();
}));
}
private static void ComboBoxOnDropDownOpened(object sender, EventArgs eventArgs)
{
var comboBox = (ComboBox)sender;
var cloneTextBox = comboBox.Template.FindName("EditableTextBoxClone", comboBox) as TextBox;
var originalTextBox = comboBox.Template.FindName("PART_EditableTextBox", comboBox) as TextBox;
if (cloneTextBox != null && originalTextBox != null)
{
var managedOverlayInfo = new ComboBoxAssistManagedOverlayInfo(comboBox, originalTextBox, cloneTextBox);
cloneTextBox.PreviewKeyDown += CloneTextBoxOnPreviewKeyDown;
cloneTextBox.SelectionLength = originalTextBox.SelectionLength;
cloneTextBox.SelectionStart = originalTextBox.SelectionStart;
originalTextBox.SelectionChanged += OriginalTextBoxOnSelectionChanged;
SetManagedOverlayInfo(comboBox, managedOverlayInfo);
SetManagedOverlayInfo(originalTextBox, managedOverlayInfo);
SetManagedOverlayInfo(cloneTextBox, managedOverlayInfo);
}
cloneTextBox?.Dispatcher.BeginInvoke(new Action(() =>
{
cloneTextBox.Focus();
}));
}