Binding issue(BO's field property called 2 times)

hector — Thu, 04 Dec 2014 15:40:01 GMT

While i studying on StrataFlix application, I have noticed that BO's fields called at least 2 times when win form opening.

Call stack is below.

Is this by design?

How can we prevent this?

I think this can yield performance problems since calcuated BO's fields may do some heavy works.

Any advice?

StrataFlix.Business.dll!StrataFlix.Business.MoviesBO.mv_Title.get()Line 296 C#

StrataFlix.Business.dll!StrataFlix.Business.MoviesBO.FieldDescriptor.GetValue(objectcomponent) Line 706 + 0x2e bytes C#

System.Windows.Forms.dll!System.Windows.Forms.BindToObject.GetValue()+ 0x42 bytes

System.Windows.Forms.dll!System.Windows.Forms.Binding.PushData(boolforce) + 0x81 bytes

System.Windows.Forms.dll!System.Windows.Forms.Binding.UpdateIsBinding()+ 0x8b bytes

System.Windows.Forms.dll!System.Windows.Forms.ListManagerBindingsCollection.AddCore(System.Windows.Forms.BindingdataBinding) + 0x37 bytes

System.Windows.Forms.dll!System.Windows.Forms.BindingsCollection.Add(System.Windows.Forms.Bindingbinding) + 0x50 bytes

System.Windows.Forms.dll!System.Windows.Forms.BindingContext.UpdateBinding(System.Windows.Forms.BindingContextnewBindingContext, System.Windows.Forms.Binding binding) + 0xe4 bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.UpdateBindings()+ 0x68 bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.OnBindingContextChanged(System.EventArgse) + 0x15d bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.OnParentBindingContextChanged(System.EventArgse) + 0x5b bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.OnBindingContextChanged(System.EventArgse) + 0x130 bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.OnParentBindingContextChanged(System.EventArgse) + 0x5b bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.OnBindingContextChanged(System.EventArgse) + 0x130 bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.CreateControl()+ 0xad bytes

System.Windows.Forms.dll!System.Windows.Forms.Control.SetVisibleCore(boolvalue) + 0x1bc bytes

RE: Binding issue(BO's field property called 2 times)

hector — Thu, 04 Dec 2014 15:40:01 GMT

Thanks Trent.

An update :

The BO's field i mentioned was mv_Title.

Only referance to this field in MovieMaintenance form is below line which is not in form loading.

The calling to this event as i mentioned was at when form go to visible.

I hope we can hear your comments soon.

Thanks again

...StrataFlixNew\CSharp\StrataFlix\Dialogs\Maintenance\Movie Maintenance\MovieMaintenance.cs(421):
if (MicroFour.StrataFrame.Messaging.MessageForm.ShowMessageByKey("MovieMaintenance_Delete", Movies.mv_Title) == MicroFour.StrataFrame.Messaging.MessageFunctionType.Yes)

RE: Binding issue(BO's field property called 2 times)

Trent L. Taylor — Thu, 04 Dec 2014 15:26:09 GMT

Hector:

No, this is not by design. I will see if I can reproduce this later, there is probably a refresh someplace that is causing the second evaluation. The StrataFlix WinForms apps hasn't been updated or changed in a long time, so there are probably some techniques that need an update anyway.

StrataFrame Forum » StrataFrame Application Framework - V1 » Business Objects and Data Access (How do I?) » Binding issue(BO's field property called 2 times)

Binding issue(BO's field property called 2 times)

RE: Binding issue(BO's field property called 2 times)

RE: Binding issue(BO's field property called 2 times)