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all groups > dotnet windows forms databinding > march 2005 > threads for march 29 - 31, 2005

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Can't add a record to Access DB - "Column xxx does not allow Nulls"
Posted by MrMibs via DotNetMonster.com at 3/31/2005 10:52:35 PM
I'm trying to use a form created with the VB.NET Data Form Wizard. When I try to test the form by adding data, I get the above error message (the record does not get added and it erases a non-related field!). The value in the field is not a NULL value. This seems only to happen to key fields - n...more >>

OnSetComplete, OnSet methods do not fire
Posted by samwise1130 at 3/30/2005 1:33:19 PM
I have an object and a strongly typed collection (inheriting collectionbase) of that object. The collection also implements iBindingList. I am attempting to run some of my own code in the OnSet or the OnSetComplete methods. But when I put a breakpoint in those events, I do not seem to hit t...more >>

Textbox bound to Dataset row, After editing HasChanges return fals
Posted by N.Sheffer at 3/30/2005 7:25:02 AM
I created a form that is displayed as DialogBox for the user. The form has couple of Textbox that are bound to the Dataset and shows the current value in them correctly. " TextBox1.DataBindings.Add("Text", DS, "TableName1.FieldName1"); TextBox2.DataBindings.Add("Text", DS, "TableName1.FieldNa...more >>

Databinding in VB.Net: Errors in debug mode but the application is working!
Posted by Sam Downunder at 3/30/2005 6:37:42 AM
Hi I have an application that has in memory tables which are related. I have recently upgraded to 2003 MSDN - which seems to have thrown an error which I did not have before. Here is the scenario... First I build a couple of simple tables: ______________________________________________...more >>



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