public static eDataType GetType(Type type)
{
while (type != null)
{
if (type.IsEnum)
{
return(eDataType.Int32);
}
if (type.IsNullableGeneric())
{
type = type.GetGenericArguments()[0];
}
if (type.IsEnum)
{
return(eDataType.Int32);
}
if (dicTypeToDataType.ContainsKey(type))
{
return(dicTypeToDataType[type]);
}
type = type.BaseType;
}
throw new ArgumentNullException("type");
}
public static Type GetGenericTypeInNullable(this Type source)
{
if (!source.IsNullableGeneric())
{
return(null);
}
return(source.GetGenericArguments()[0]);
}
public static object GetDefaultValueNoNull(this Type source)
{
object value = null;
if (source == typeof(string))
{
value = string.Empty;
}
else if (source.IsNullableGeneric())
{
value = Activator.CreateInstance(source.GetGenericTypeInNullable());
}
else
{
value = Activator.CreateInstance(source);
}
return(value);
}
public static bool IsNullable(this Type source)
{
return(!source.IsValueType || source.IsNullableGeneric());
}
