I'm still making tests.

I put a list view in a Micro Four User Control which is contained in a Micro Four Form and the time of loading is 2800 ms.

When I put directly the same list in a Micro Four Form, the time is about 450 ms.

What are the reasons of this difference ?

Best regards

David

I put my BO in my user control and I raise the ParentFormLoading event in userControl_Load event.

I saw that there is no PrimaryBusinessObject property in a user control.

Should I put a BO in the form which contains the user control ? I don't think so.

Could you help me by telling me the procedure to follow.

Thanks in advance

David

I retried this afternoon and I found the same result. I can't succeed to find where the problem is.

I need your help.

David

I succeed to have the same time of loading when I put a list directly in a form and when I put a list in user control contained in a form.

The problem seems to come from the parameters of the BOTranslation I did.

So, now, I have a time of loading equals to 520 ms in a user control. It's better

But, I'm trying to do this by code but my list doesn't load

I have this code in my form_load:

What's wrong ?

Thanks for your help.

David

The line "_ucClient.BOTranslations.Add(_BOTranslationItem1);" isn't not in my code.

David

First, I think that you are making this harder than you need to in regards to the user control.  Just for a little background, we have a large number of user controls that are used within dialogs and forms which in turn use the BO translations between the two.  Here is how a user control is intended to work:

1. Drop your BOs on a user control and bind to them just as though they were on a form
2. Once the user control is written, drop that user control on a form or dialog
3. Drop on the BOs of the same type that were dropped on the user control
4. Then build the project
5. Stay within the designer, and select the user control
6. Go the BO Translations of the user control and click the "..." button
7. This will then bring up a translations dialog.  Add a translation for each BO that needs to be translated from the dialog into the user control...they will have to be of the same BO type on each translation (one for one).
8. Now populate the BOs on the form (or the user control can populate them if this is how you intend your app to work, but just for arguments sake, lets populate the Bos on the dialog here)
9. Now when you run, you should be able to populate the BOs on the form and you will see them reflected within the user control

I follow your method and it's work.

But if I want to do the same by code and not by the designer, I don't manage to laod my list.

Do I forget something in the code I posted before ?

David

In fact, I want to use User Control to re use them in several screens. So I want to use code to create dynamicly my user controls and  I don't manage to create translations between my form and my user control.

When I put my user control in my form on the designer it works correctly.

Nevertheless, when I do the same by code by creating myself translations in the Form_Load(), it doesn't work. I put code before the InitializeComponent() and after but the result is the same.

What can I do ?

Thanks

David

Well, let's go at it from this perspective.  The BOs get translated within the Load of the form.  The SF users controls also have a property that exposes which object from which to translate.  I am not answering from a machine with VS on it (long story), but the user control has a property called TranslationObject (I think), but it will be iin the same category as the BOTranslations property of the UserControl.

You can set this to the form (or even set it in code) and it may resolve your problem.  If not, you can also implement the IParentFormLoading interface to control the initialization of the control.  But let's start with the first before we get into the second.

Here is my code.

I already set the TranslationObject property of my user control to my form. So, I will implement the IParentFormLoading interface to control the initialization of the control as you said.

David

I send you a sample project. I put the 2 examples. One with my user control created directly on the form by the designer which works. The other in which I create the user control and BOTranslation in the code.

David

Did you have the time to test my sample ?

Regards,

David

I will work with Strataframe for many years so I have time

Could you re-post that sample with the infragistic references and toolstrips removed? We don't have the version of infragistics you are using, so we can't build the project as is.

Thanks!

Here is a new sample without Infragistics references.
In my table, I have 4 columns CodeClient, Nom, CodePostal and Adresse as you can see in my BO.designer.cs.

I don't succeed to load my list when I create manually my uc in my form.
And I don't know why.

Hope this sample will work on your computer.

Regards,

David

1. You need to ensure that your projects enforce invalid variable declarations, etc. at compile time.  You can turn some compiler errors off, and this is not the crux of the issue, but bottom line is that you want to see all errors during a compile...let nothing be ignored.
2. You are not properly using the ListView.  First of all, on your user control, you have a ListView that has a PopulationDataSourceSettings set to call your ReturnClientList() (I am paraphrasing here on your method name).  This will never work.  A ListView creates an internal BO.  In your user control, you do not reference or load from the clientBO1 anywhere.  So obviously you are not going to be able to load from that BO.  In your PopulationDataSourceSettings you need to set the Method To Invoke to CopyDataFrom, the you will handle the ListPopulating event to provide the clientBO1 there so that the instance you are trying to translate will appear.  There are a lot of samples on the forum as well as in the install of SF showing how to poipulate a ListView this way...including many examples in the StrataFlix sample.  Please refer to these samples to learn how to populate a ListView this way.
3. Once you work through these problems, you will need to override the OnLoad method instead of handling the event (though you can handle the event, overriding the OnLoad gives you the control to place your code before or after the base logic...just good .NET standards).  When you setup a BO translation, all of this will be done within the OnLoad of the form and the controls...so you will want to place your logic there.  Now once the BO is translated....YOU WILL HAVE to requery the ListView in order to get the updated contents of the translated BO into the ListView.
   
   lstClients.Requery()
   

That should be enough to get you going down the right path.

I succeed to load a listview in an user control with a designer. But I'm not sure you understand my problem.
I want to add an user control by code
UserControl _uc = new UserControl();

I wonder how to link a BO in the form and in the user control in the code and set the PopulationDataSourceSettings.

I set the properties by code but nothing happened. I may forgot something but why I don't know.

public Form1()
{
InitializeComponent();
_clientBO = new ClientBO();
_clientBO.ParentFormLoading += new MicroFour.StrataFrame.UI.IInitOnFormLoad.ParentFormLoadingEventHandler(_clientBO_ParentFormLoading);
_clientBO.ParentContainer = this;
_clientBO.SynchronizingObject = this;
_ucClient = new ucClient();
this.PrimaryBusinessObject = _clientBO;
_BOTranslationItem1.DestinationBusinessObject = "_ucClient.clientBO1";
_BOTranslationItem1.SourceBusinessObject = "Form1._clientBO";
_ucClient.BOTranslations.AddRange(new MicroFour.StrataFrame.UI.Windows.Forms.BusinessObjectTranslationItem[] {
_BOTranslationItem1});
_ucClient.Dock = System.Windows.Forms.DockStyle.Fill;
_ucClient.ParentContainer = this;
_ucClient.TranslationObject = this;
this.Controls.Add(_ucClient);
}
void _clientBO_ParentFormLoading()
{
_clientBO.RetournerTousClients();
}