public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
var str = value as string;
if (str != null || value == null)
{
IStringConvertible obj = (IStringConvertible)Activator.CreateInstance(_Type);
if (!obj.FromString(str, culture))
{
throw new ArgumentException(string.Format("Can't convert this string to a {0}", _Type.Name), str);
}
return(obj);
}
return(null);
}
static void Main(string[] args)
{
Employee employee = new Employee("Petr", "Tinka");
Console.WriteLine(employee.ToUpperCase());
//Console.WriteLine(employee.ToLowerCase());
//IStringConvertible convertible = (IStringConvertible)employee;
IStringConvertible convertible = employee;
Console.WriteLine(convertible.ToLowerCase());
ShowConverted(employee);
MyClass mc = new MyClass();
ShowConverted(mc);
}
public static object ConvertFromStr(Type type, string str)
{
if (convertersFromString.ContainsKey(type))
{
return convertersFromString[type].Invoke(str);
}
if (type.GetInterface(stringConvertibleTypeName) != null)
{
IStringConvertible convertible = (IStringConvertible)Activator.CreateInstance(type);
bool success = convertible.ConvertFromString(str);
if (success)
return convertible;
}
Debug.LogWarning("there's no converter built in for type " + type.Name + " and type is not IValueConvertible or conversion failed!");
return TypeDescriptor.GetConverter(type).ConvertFromString(str);
}
static void ShowConverted(IStringConvertible StringConvertible)
{
Console.WriteLine(StringConvertible.ToUpperCase());
Console.WriteLine(StringConvertible.ToLowerCase());
}