|
public CreateInstance ( IServiceProvider provider, |
||
| provider | IServiceProvider | |
| objectType | ||
| argTypes | ||
| args | object | |
| Результат | object | |
public static object CreateInstance(IServiceProvider provider, Type objectType, Type [] argTypes, object [] args)
{
if (objectType == null)
{
throw new ArgumentNullException("objectType");
}
object instance = null;
if (provider != null)
{
TypeDescriptionProvider typeDescrProvider = provider.GetService(typeof(TypeDescriptionProvider)) as TypeDescriptionProvider;
if (typeDescrProvider != null)
{
instance = typeDescrProvider.CreateInstance(provider, objectType, argTypes, args);
}
}
// TODO: also search and use the internal providers table once Add/RemoveProvider have been implemented
if (instance == null)
{
instance = Activator.CreateInstance(objectType, args);
}
return(instance);
}
/// <summary>Creates an object that can substitute for another data type.</summary>
/// <returns>The substitute <see cref="T:System.Object" />.</returns>
/// <param name="provider">An optional service provider.</param>
/// <param name="objectType">The type of object to create. This parameter is never null.</param>
/// <param name="argTypes">An optional array of types that represent the parameter types to be passed to the object's constructor. This array can be null or of zero length.</param>
/// <param name="args">An optional array of parameter values to pass to the object's constructor.</param>
public virtual object CreateInstance(IServiceProvider provider, Type objectType, Type[] argTypes, object[] args)
{
if (_parent != null)
{
return(_parent.CreateInstance(provider, objectType, argTypes, args));
}
return(Activator.CreateInstance(objectType, args));
}