Databinding

[DLI]

Scenario:

I have a form and two text boxes and one datagrid.

I have a dataset composed of two tables
Questions (QuestionID, QuestionText)
Answers (QuestionID, AnswerText)

there is a one to many relationship between Questions and Answers defined by
this Relation (QuestionAnswer ) in the dataset ds

txtQuestionID is bound to a Questions.Quest ionID
txtQuestion is bound to a Questions.Quest ionText
this.txtQuestio n.DataBindings. Add("Text", ds.Tables["Questions"],
"QuestionText") ;

this.txtQuestio nID.DataBinding s.Add("Text", ds.Tables["Questions"],
"QuestionID ");



Datagrid named dgAnswers is bound to the relation QuestionAnswer

I have a move next button and a move previous button that sets the position
of the table questions forward and back.

The question and the txtQuestionID and txtQuestion change as they should
when I click the buttons.

Problem:
The datagrid displays the list of possible answers for the first question
only (correctly) when the form opens
When I click the next button, the text boxes both change but the datagrid
stays with the answers for the first question.


I have tried very syntax I can think of like:
this.dgAnswers. BindingContext = this.BindingCon text;

this.dgAnswers. SetDataBinding( ds, "Questions.Ques tionAnswer");

If I place another datagrid on the form and set its datasource to

this.dgQuestion s.SetDataBindin g(ds, "Questions" );

and click a different question in this grid, the selection updates properly
in dgAnswers

How can I get the controls and the datagrid to use the same CurrencyManager ?