public object ConvertBack(object value, Type sourceType, object parameter, CultureInfo culture)
{
if (value == null)
{
if (!DefaultValueConverter.AcceptsNull(sourceType))
{
CultureInfo invariantCulture = CultureInfo.InvariantCulture;
string str = "ValueConverter can't convert Type {0} to Type {1}";
object[] objArray = new object[] { "'null'", sourceType.ToString() };
throw new InvalidOperationException(string.Format(invariantCulture, str, objArray));
}
value = null;
}
else
{
Type type = value.GetType();
this.EnsureConverter(sourceType, type);
if (this.converter == null)
{
CultureInfo cultureInfo = CultureInfo.InvariantCulture;
string str1 = "ValueConverter can't convert Type {0} to Type {1}";
object[] objArray1 = new object[] { type.ToString(), sourceType.ToString() };
throw new InvalidOperationException(string.Format(cultureInfo, str1, objArray1));
}
value = this.converter.ConvertBack(value, sourceType, parameter, culture);
}
return(value);
}
public object ConvertBack(object o, Type type, object parameter, CultureInfo culture)
{
if (o == null && DefaultValueConverter.AcceptsNull(this.sourceType))
{
return(o);
}
if (o != null && this.sourceType.IsAssignableFrom(o.GetType()))
{
return(o);
}
if (this.sourceType != typeof(string))
{
CultureInfo invariantCulture = CultureInfo.InvariantCulture;
string str = "ValueConverter can't convert Type {0} to Type {1}";
object[] objArray = new object[] { o.GetType().ToString(), this.sourceType.ToString() };
throw new InvalidOperationException(string.Format(invariantCulture, str, objArray));
}
return(o.ToString());
}
private object ConvertHelper(object o, Type destinationType, CultureInfo culture, bool isForward)
{
object obj;
bool flag = isForward ? !this.shouldConvertTo : !this.shouldConvertFrom;
if (flag)
{
if (!flag || ((o == null || !destinationType.IsAssignableFrom(o.GetType())) && (o != null || !DefaultValueConverter.AcceptsNull(destinationType))))
{
CultureInfo invariantCulture = CultureInfo.InvariantCulture;
string str = "ValueConverter can't convert Type {0} to Type {1}";
object[] objArray = new object[] { (o == null ? "'null'" : o.GetType().ToString()), destinationType.ToString() };
throw new InvalidOperationException(string.Format(invariantCulture, str, objArray));
}
obj = o;
flag = false;
}
else
{
obj = !isForward?this.typeConverter.ConvertFrom(o) : this.typeConverter.ConvertTo(o, destinationType);
}
return(obj);
}
