private void UnSetupDataContext(NumberBoxModel model)
{
model.FocusRequest -= Model_FocusRequest;
model.SelectRequest -= Model_SelectRequest;
model.CaretIndexChanged -= Model_CaretIndexChanged;
model.PreviewTextInput -= Model_PreviewTextInput;
}
/// <summary>
/// Tab键按下时的响应;
/// </summary>
private bool OnTabKeyDown()
{
var currentWritableNumberBox = GetCurrentWritableNumberBox();
if (currentWritableNumberBox?.Number == null)
{
return(true);
}
var index = _numberBoxes.IndexOf(currentWritableNumberBox);
NumberBoxModel nextNumberBox = null;
if (index == _numberBoxes.Count - 1)
{
nextNumberBox = _numberBoxes[0];
}
else
{
nextNumberBox = _numberBoxes[index + 1];
}
currentWritableNumberBox.IsReadOnly = true;
if (IsInputing)
{
IsInputing = false;
currentWritableNumberBox.TabConfirm();
}
nextNumberBox.IsReadOnly = false;
nextNumberBox.SelectAll();
nextNumberBox.Focus();
return(true);
}