StrataFrame Forum
Back
Login
Login
Home
»
StrataFrame Application Framework - V1
»
Issues
»
problem with BBS & standart .NET grid
problem with BBS & standart .NET grid
Post Reply
Like
2
problem with BBS & standart .NET grid
View
Flat Ascending
Flat Descending
Threaded
Options
Subscribe to topic
Print This Topic
RSS Feed
Goto Topics Forum
Author
Message
hector
hector
posted 12 Years Ago
ANSWER
Topic Details
Share Topic
Group: StrataFrame Users
Posts: 52,
Visits: 559
Hi folks :
I have a problem with BBS & standart .NET grid.
I have 2 BO on a form ... Let Say ParentBO and ChildBO...
As the names implys one is parent and other is child.
I setup ParentRelationship and ParentBusinessObject properties of these BO's properly as i always do.
I also setup the BBS and grid as in SF Help document (Topic :
Understanding the Business Binding Source (BBS) Control)
When I call ParentBO's Save I got a exception from SF's internal method PushDataToChildren.
When ı debug the problem i noticed that there is a one parent BO (ParentBO) but more then one child BO (which i never declared).
And these extra child BO's ParentRelationship was nothing...
This is first time I am using BBS...
When i worked on BBS deeply, I have also noticed that BBS ınternally, create an BO of same type for each row.
And I also noticed the problem is those Child BOs which internally added by BBS in SF.
Is this normal working logic of BBS?
Am i missing something in this picture?
Please advice ...
Kind regards...
Reply
Like
2
Replies
hector
hector
posted 12 Years Ago
ANSWER
Post Details
Share Post
Group: StrataFrame Users
Posts: 52,
Visits: 559
Hi Ben,
As I can see the problem is here in this private method in ..\MicroFour StrataFrame Business\business\BusinessBindingSource.vb :
Private Function CreateShareAndAddBusinessObject(ByVal index As Integer) As BusinessLayer
'-- Create a new object
Dim loReturn As BusinessLayer = CType(Activator.CreateInstance(Me._BusinessObject.GetType()), BusinessLayer)
'-- Share the table
Me._BusinessObject.ShareCurrentDataTable(loReturn)
'-- Set the parent business object of the instance object
loReturn.ParentBusinessObject = _BusinessObject.ParentBusinessObject '->>>>>>
In this line setting ParentBusinessObject increase
ChildBusinessObjects collection and when parent BO calls save method there are lot of child BO to be save and their ParentRelationship property is nothing
'-- Add the object to the list
Me._BusinessObjectList.Add(index, loReturn)
'-- Return the new object
Return loReturn
End Function
Thanks Ben
Reply
Like
2
StrataFrame Team
S
StrataFrame Team
posted 12 Years Ago
ANSWER
Post Details
Share Post
S
Group: StrataFrame Developers
Posts: 3K,
Visits: 2.5K
OK, I think I have an idea... the ParentRelationship is generally set through the type editor on the business object component editor. That means that the definition for the ParentRelationship gets put into the InitializeComponent() of the business object. Any time you create a new instance of the business object type, it should already have the ParentRelationship set. Are you setting the parent relationship a different way, such as setting it explicitly on the form?
To fix it, I can do a build for you or if you are comfortable with building the source yourself, the CreateShareAndAddBusinessObject() method needs to be changed to this:
Private Function CreateShareAndAddBusinessObject(ByVal index As Integer) As BusinessLayer
'-- Create a new object
Dim loReturn As BusinessLayer = CType(Activator.CreateInstance(Me._BusinessObject.GetType()), BusinessLayer)
'-- Share the table
Me._BusinessObject.ShareCurrentDataTable(loReturn)
'-- Set the parent relationship in case it was set on the business object explicitly outside of the constructor
If loReturn.ParentRelationship Is Nothing Then
loReturn.ParentRelationship = Me._BusinessObject.ParentRelationship
End If
'-- Set the parent business object of the instance object
loReturn.ParentBusinessObject = _BusinessObject.ParentBusinessObject
'-- Add the object to the list
Me._BusinessObjectList.Add(index, loReturn)
'-- Return the new object
Return loReturn
End Function
Reply
Like
2
GO
Merge Selected
Merge into selected topic...
Merge into merge target...
Merge into a specific topic ID...
Open Merge
Threaded View
Threaded View
problem with BBS & standart .NET grid
hector
-
12 Years Ago
Nope, you're not missing anything from the picture. The foremost...
StrataFrame Team
-
12 Years Ago
[quote][b]Ben Chase (2/25/2013)[/b][hr]... I'm sure you'll probably be...
Edhy Rijo
-
12 Years Ago
Hi Ben, As I can see the problem is here in this private method in...
hector
-
12 Years Ago
OK, I think I have an idea... the ParentRelationship is generally set...
StrataFrame Team
-
12 Years Ago
You are right Ben.. I did so.. I will try your sugession and let u...
hector
-
12 Years Ago
Problem is solved Ben... Thanks a lot indeed You are great:)
hector
-
12 Years Ago
Post Reply
Like
2
Similar Topics
Post Quoted Reply
Reading This Topic
Login
Login
Remember Me
Reset Password
Resend Validation Email
Login
Explore
Messages
Mentions
Search