public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (!targetType.IsAssignableFrom(typeof(string)))
{
return(DependencyProperty.UnsetValue);
}
string workingText = (value == null) ? string.Empty : value.ToString();
string mask = null; // Defaults to no mask when no parameter is specified.
if (parameter != null)
{
Type parameterType = parameter.GetType();
if (parameterType == typeof(string))
{
string stringParameter = ( string )parameter;
if (!string.IsNullOrEmpty(stringParameter))
{
mask = stringParameter;
}
}
else
{
return(DependencyProperty.UnsetValue);
}
}
if (!string.IsNullOrEmpty(mask))
{
try
{
string rawText = string.Empty;
CultureInfo currentCulture = CultureInfo.CurrentCulture;
if (value != null)
{
try
{
Type valueDataType = value.GetType();
MethodInfo valueToStringMethodInfo =
valueDataType.GetMethod("ToString", new Type[] { typeof(string), typeof(IFormatProvider) });
string formatSpecifier = MaskedTextBox.GetFormatSpecifierFromMask(mask, currentCulture);
if (valueToStringMethodInfo != null)
{
rawText = ( string )valueToStringMethodInfo.Invoke(value, new object[] { formatSpecifier, currentCulture });
}
else
{
rawText = value.ToString();
}
}
catch
{
rawText = value.ToString();
}
}
MaskedTextProvider maskedTextProvider = new MaskedTextProvider(mask, currentCulture);
maskedTextProvider.Set(rawText);
return(maskedTextProvider.ToString(false, true));
}
catch
{
}
}
return(value.ToString());
}