private void TagControl_OnPreviewMouseUp(object sender, MouseButtonEventArgs e)
{
TagControlItemViewModel itemWithEDit = null;
foreach (var item in lst.Items)
{
if ((item as TagControlItemViewModel).IsEditing)
{
itemWithEDit = item as TagControlItemViewModel;
}
}
if (itemWithEDit != null)
{
var item = lst.ItemContainerGenerator.ContainerFromItem(itemWithEDit) as ListBoxItem;
if (item != null)
{
item.Focus();
var txt = UIHelper.FindVisualChild <TextBox>(item);
if (txt != null)
{
txt.Focus();
}
}
}
}
private void BackSpacePressed(string inputText)
{
if (string.IsNullOrEmpty(inputText))
{
var lastItem = TagViewModelCollection.LastOrDefault(tvm => tvm.IsEditing == false);
if (lastItem != null)
{
TagViewModelCollection.Remove(lastItem);
}
}
else
{
TagControlItemViewModel itemWithEDit = null;
foreach (var item in lst.Items)
{
if ((item as TagControlItemViewModel).IsEditing)
{
itemWithEDit = item as TagControlItemViewModel;
}
}
if (itemWithEDit != null)
{
var item = lst.ItemContainerGenerator.ContainerFromItem(itemWithEDit) as ListBoxItem;
if (item != null)
{
var txt = UIHelper.FindVisualChild <TextBox>(item);
if (txt != null)
{
string currentValue = txt.Text;
string selectedText = txt.SelectedText;
if (!string.IsNullOrEmpty(selectedText))
{
//delete all selected text
var caretIndex = txt.CaretIndex;
txt.Text = txt.Text.Replace(txt.SelectedText, string.Empty);
txt.CaretIndex = caretIndex;
}
else
{
//delete last symbol in textbox
var caretIndex = txt.CaretIndex;
if (caretIndex > 0)
{
string backSpace = currentValue.Remove(caretIndex - 1, 1);
txt.Text = backSpace;
txt.CaretIndex = caretIndex - 1;
}
}
}
}
}
}
}