public static T SurroundConstruct <T>(this ConstructorContext ctx, Func <ConstructorContext, T> constructor)
where T : ModifiableEntity
{
ctx.Type = typeof(T);
return((T)Manager.SurroundConstruct(ctx, constructor));
}
public virtual ModifiableEntity ConstructCore(ConstructorContext ctx)
{
Func <ConstructorContext, ModifiableEntity> c = Constructors.TryGetC(ctx.Type);
if (c != null)
{
ModifiableEntity result = c(ctx);
return(result);
}
if (ctx.Type.IsEntity() && OperationClient.Manager.HasConstructOperations(ctx.Type))
{
return(OperationClient.Manager.Construct(ctx));
}
return((ModifiableEntity)Activator.CreateInstance(ctx.Type));
}
public virtual ModifiableEntity SurroundConstruct(ConstructorContext ctx, Func <ConstructorContext, ModifiableEntity> constructor)
{
IDisposable disposable = null;
try
{
foreach (var pre in PreConstructors.GetInvocationListTyped())
{
disposable = Disposable.Combine(disposable, pre(ctx));
if (ctx.CancelConstruction)
{
return(null);
}
}
var entity = constructor(ctx);
if (entity == null || ctx.CancelConstruction)
{
return(null);
}
foreach (Action <ConstructorContext, ModifiableEntity> post in PostConstructors.GetInvocationListTyped())
{
post(ctx, entity);
if (ctx.CancelConstruction)
{
return(null);
}
}
return(entity);
}
finally
{
if (disposable != null)
{
disposable.Dispose();
}
}
}
public static void PostConstructors_AddFilterProperties(ConstructorContext ctx, ModifiableEntity entity)
{
if (entity == null)
{
throw new ArgumentNullException("result");
}
if (ctx.Element is SearchControl)
{
var filters = ((SearchControl)ctx.Element).FilterOptions.Where(fo => fo.Operation == FilterOperation.EqualTo && fo.Token is ColumnToken);
var pairs = from pi in ctx.Type.GetProperties(BindingFlags.Public | BindingFlags.Instance)
join fo in filters on pi.Name equals fo.Token.Key
where Server.CanConvert(fo.Value, pi.PropertyType) && fo.Value != null
select new { pi, fo };
foreach (var p in pairs)
{
p.pi.SetValue(entity, Server.Convert(p.fo.Value, p.pi.PropertyType), null);
}
}
}
protected object OnCreate()
{
if (!CanCreate())
{
return(null);
}
object value;
if (Creating == null)
{
Type type = SelectType(t => Navigator.IsCreable(t, isSearch: false));
if (type == null)
{
return(null);
}
object entity = new ConstructorContext(this).ConstructUntyped(type);
value = entity;
}
else
{
value = Creating();
}
if (value == null)
{
return(null);
}
if (ViewOnCreate)
{
value = OnViewingOrNavigating(value, creating: true);
}
return(value);
}
public static ModifiableEntity SurroundConstructUntyped(this ConstructorContext ctx, Type type, Func <ConstructorContext, ModifiableEntity> constructor)
{
ctx.Type = type;
return(Manager.SurroundConstruct(ctx, constructor));
}
public static ModifiableEntity ConstructUntyped(this ConstructorContext ctx, Type type)
{
return(ctx.SurroundConstructUntyped(type, Manager.ConstructCore));
}
public static T Construct <T>(this ConstructorContext ctx)
where T : ModifiableEntity
{
return((T)ctx.SurroundConstructUntyped(typeof(T), Manager.ConstructCore));
}
