public void VerifyChar()
{
var maskedTextProvider = new MaskedTextProvider(TestSimpleDigitMask);
Assert.True(maskedTextProvider.VerifyChar('1', 0, out MaskedTextResultHint resultHint));
Assert.Equal(MaskedTextResultHint.Success, resultHint);
Assert.False(maskedTextProvider.VerifyChar('T', 0, out resultHint));
Assert.Equal(MaskedTextResultHint.DigitExpected, resultHint);
}
protected override void OnPreviewTextInput(TextCompositionEventArgs e)
{
e.Handled = true;
var validInput = false;
if (!string.IsNullOrWhiteSpace(e.Text) && e.Text.Length == 1)
{
MaskedTextResultHint hint;
validInput = MaskProvider.VerifyChar(e.Text[0], SelectionStart, out hint);
if (validInput)
{
var initialString = MaskProvider.ToDisplayString();
var charArray = initialString.ToCharArray();
charArray[SelectionStart] = e.Text[0];
var verifyString = new string(charArray);
TimeSpan ts;
if (TimeSpan.TryParse(verifyString, CultureInfo.CurrentCulture, out ts))
{
MaskProvider.Replace(e.Text, SelectionStart);
}
else
{
// Case 08:00:00 => 28:00:00 => 20:00:00
if (SelectionStart + 1 < charArray.Length)
{
charArray[SelectionStart + 1] = '0';
verifyString = new string(charArray);
if (TimeSpan.TryParse(verifyString, CultureInfo.CurrentCulture, out ts))
{
MaskProvider.Replace(e.Text, SelectionStart);
MaskProvider.Replace('0', SelectionStart + 1);
}
else
{
validInput = false;
}
}
else
{
validInput = false;
}
}
}
}
base.OnPreviewTextInput(e);
if (validInput)
{
RefreshText();
SelectionStart = GetNextCharacterPosition(SelectionStart);
}
}
protected override void OnPreviewTextInput(TextCompositionEventArgs e)
{
System.ComponentModel.MaskedTextResultHint hint;
int TestPosition;
if (e.Text.Length == 1)
{
this._NewTextIsOk = _mprovider.VerifyChar(e.Text[0], this.CaretIndex, out hint);
}
else
{
this._NewTextIsOk = _mprovider.VerifyString(e.Text, out TestPosition, out hint);
}
base.OnPreviewTextInput(e);
}