private void pinTextBox_PreviewKeyDown(object sender, KeyEventArgs e)
{
List <TextBox> tbs = new List <TextBox>();
tbs.Add(p1TextBox);
tbs.Add(p2TextBox);
tbs.Add(p3TextBox);
tbs.Add(p4TextBox);
int pIndex = 0;
for (int i = 0; i < tbs.Count; i++)
{
if (tbs[i] == sender)
{
pIndex = i;
break;
}
}
if (e.Key == Key.Back)
{
e.Handled = true;
if (pIndex == 0)
{
tbs[pIndex].Text = "";
}
else
{
tbs[pIndex].Text = "";
tbs[pIndex - 1].Focus();
tbs[pIndex - 1].Select(0, 1);
//tbs[pIndex - 1].SelectionLength = 0;
}
}
else
{
e.Handled = true;
char ch = KeyEventUtility.GetCharFromKey(e.Key);
if (Char.IsDigit(ch))
{
if (pIndex == tbs.Count - 1)
{
tbs[pIndex].Text = ch.ToString();
}
else
{
tbs[pIndex].Text = ch.ToString();
tbs[pIndex + 1].Focus();
tbs[pIndex + 1].Select(0, 0);
//tbs[pIndex + 1].SelectionLength = 0;
}
}
}
}
private void OnWindowPreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.IsRepeat ||
e.Handled)
{
return;
}
if (this.ribbon.IsCollapsed ||
this.ribbon.IsEnabled == false ||
this.window.IsActive == false)
{
return;
}
// Keytips should be cancelled if Alt+Num0 is pressed #241.
// This allows entering special keys via numpad.
if (e.KeyboardDevice.Modifiers == ModifierKeys.Alt &&
e.SystemKey >= Key.NumPad0 &&
e.SystemKey <= Key.NumPad9)
{
this.Terminate();
return;
}
if (IsShowOrHideKey(e))
{
if (this.activeAdornerChain == null ||
this.activeAdornerChain.IsAdornerChainAlive == false ||
this.activeAdornerChain.AreAnyKeyTipsVisible == false)
{
this.ShowDelayed();
}
else
{
this.Terminate();
}
}
else if (e.Key == Key.Escape &&
this.activeAdornerChain != null)
{
this.activeAdornerChain.ActiveKeyTipAdorner.Back();
this.ClearUserInput();
e.Handled = true;
}
else
{
if ((e.Key != Key.System && this.activeAdornerChain == null) ||
e.SystemKey == Key.Escape ||
(e.KeyboardDevice.Modifiers != ModifierKeys.Alt && this.activeAdornerChain == null))
{
return;
}
var actualKey = e.Key == Key.System ? e.SystemKey : e.Key;
// we need to get the real string input for the key because of keys like ä,ö,ü #258
var key = KeyEventUtility.GetStringFromKey(actualKey);
var isKeyRealInput = string.IsNullOrEmpty(key) == false &&
key != "\t";
// Don't do anything and let WPF handle the rest
if (isKeyRealInput == false)
{
// This block is a "temporary" fix for keyboard navigation not matching the office behavior.
// If someone finds a way to implement it properly, here is your starting point.
// In office: If you navigate by keyboard (in menus) and keytips are shown they are shown or hidden based on the menu you are in.
// Implementing navigation the way office does would require complex focus/state tracking etc. so i decided to just terminate keytips and not restore focus.
{
this.backUpFocusedControl = null;
this.Terminate();
}
return;
}
var shownImmediately = false;
// Should we show the keytips and immediately react to key?
if (this.activeAdornerChain == null ||
this.activeAdornerChain.IsAdornerChainAlive == false ||
this.activeAdornerChain.AreAnyKeyTipsVisible == false)
{
this.ShowImmediatly();
shownImmediately = true;
}
if (this.activeAdornerChain == null)
{
return;
}
var previousInput = this.currentUserInput;
this.currentUserInput += key;
if (this.activeAdornerChain.ActiveKeyTipAdorner.ContainsKeyTipStartingWith(this.currentUserInput) == false)
{
// Handles access-keys #258
if (shownImmediately)
{
this.Terminate();
return;
}
// If no key tips match the current input, continue with the previously entered and still correct keys.
this.currentUserInput = previousInput;
System.Media.SystemSounds.Beep.Play();
e.Handled = true;
return;
}
if (this.activeAdornerChain.ActiveKeyTipAdorner.Forward(this.currentUserInput, true))
{
this.ClearUserInput();
e.Handled = true;
return;
}
this.activeAdornerChain.ActiveKeyTipAdorner.FilterKeyTips(this.currentUserInput);
e.Handled = true;
}
}
