BindingSource.MoveNext And MovePreviou Skips Records

Sep 17, 2009

I have a binding source that when I use the MoveNext or MovePrevious methods it skips records. I've tried circumventing this by using Position ++ and Position -1 instead but I still get the same result. I even resorted to manually sorting the binding source to see if that would help but no joy as well there.

I have a bindingsource that is tied to a dataset class. I added 2 records to start and movenext worked as it should (moved 1 to 2) as well as move previous. I added a third record and now the movenext method skips record 2 and moves straight to 3. The same symptom also occurred for move previous. I also added a fourth record and it got even weirder. As before when movenext was invoked, the record pointer moved from record 1 to 3. I invoke MoveNext again and it moves to record 4. Now I hit MovePrevious from Record 4 and it moves to record 2 skipping record three.

Others who are working on forms with different bindingsources ties to the same dataset class are seeing similar things.

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[Code]...

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I am having a problem trying to save records in a parent / child data relation. I have to tables tblContacts & tblMember. There is a fk relation on the ContactID field. The tblContacts table is the master record. I am using a set up bound windows forms controls to do the data collection. The problem that I am having is in saving the child record. After the form is populated in both the fields and hitting the save button the items in the child record get deleted. It does add a row in the child record but only the ContactID (from the master table) and the key for the tblMember table. This program will not be using a datagrid. I did experiment with datagrids and it works well. The problem is when I try to use detail views in the form of textboxes that are bound to the bindingsource.

[Code]...

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Storing Master / Detail Records Using Bindingsource And A Fk Relationship?

Jun 12, 2011

I am having a problem trying to save records in a parent / child data relation. I have to tables tblContacts & tblMember. There is a fk relation on the ContactID field. The tblContacts table is the master record. I am using a set up bound windows forms controls to do the data collection. The problem that I am having is in saving the child record.After the form is populated in both the fields and hitting the save button the items in the child record get deleted. It does add a row in the child record but only the ContactID (from the master table) and the key for the tblMember table.

I can see that since the new master record incites the addition of a new row, the data is abandoned. Once there is a save done to the master / child record I can go back and modify the fields and it saves it successfully. I know I must be missing something small. I am not sure how to work around this so that the controls are read into memory and then completed in the new row. I have an example of my code:

Private Sub TblContactsBindingNavigatorSaveItem_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TblContactsBindingNavigatorSaveItem.Click
Dim newMemberRow As DataRow 'To create a new row in the tblMember table

[code].....

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Dim iSql As String = "UPDATE CompanyDetails SET Description = '" & DescriptionRadTextBox.Text & "' WHERE ID =" & Val(txtId.Text)
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[CODE]...

How my code works when I want to update I see the changes in the textbox when I do my movelast, movenext. but when I go to the database the changes are not there can someone help I am using vb.net 2010 and access 2010If you think it you can achieve it

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Here is the code:

Using cmd As New SqlCommand("doGetAllSizesForProduct", oConn)
cmd.CommandType = CommandType.StoredProcedure
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[Code].....

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[code].....

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Here is my code for the buttons:

CODE:

Here is the full code

CODE:

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Here is the archive: [URL]

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Dim Btn As Button = DirectCast(sender, Button)
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[code]....

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[CODE]...

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[code].....

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[Code]...

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[Code]....

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