version 1.0.2005.1 final (self-servicing) VS2005 winforms

hiya,

I have a combobox that contains a databindings that links to a child entityCollection. The child EntityCollection is also bound to a datagridView.

 TblReturnProductConditionCollection returnProductConditionCollection = new TblReturnProductConditionCollection();
            returnProductConditionCollection.GetMulti(null);

            cboReturnProductCondition.DataSource = returnProductConditionCollection;
            cboReturnProductCondition.ValueMember = "returnProductCondtionId";
            cboReturnProductCondition.DisplayMember = "returnProductCondtionName";
            cboReturnProductCondition.DataBindings.Clear();
            cboReturnProductCondition.DataBindings.Add(new Binding("SelectedValue", this.childBindingSource, myProject.TblReturnProductsFieldIndex.ReturnProductCondtionId.ToString(), true));

My problem:

When I select a differnt item in the combobox, I get one of 2 errors:

1) operation is not valid due to the current state of the object 2) value of '3' is not valid for index start

Hmm, I've no idea.

Can anyone help?

many thanks,

yogi

Please refer to Using Generated Code -> Self Service -> Data Binding and perticulerly "Design time support in VS.NET 2005" section in the referance manual to see if this applies to you.

hiya,

I read the help. I am doing the databinding at runtime, in code. The only design-time stuff I have are the blank bindingSources that I dragged onto my form.

I set all the values for these bindingSources in code.

This is my code..Is there maybe something else that i should be aware of?

Cheers,

yogi

//predicate code.
  IPredicateExpression filtReturnProductCondition = new PredicateExpression();
            filtReturnProductCondition.Add(PredicateFactory.CompareValue(TblReturnProductsFieldIndex.ReturnProductCondtionId, ComparisonOperator.Equal, (int)cboReturnProductCondition.SelectedValue)); //
            filtReturnProductCondition.Add(PredicateFactory.CompareValue(TblReturnProductsFieldIndex.ReturnId, ComparisonOperator.Equal, _selectedReturnId));

//databindingCode
            tblReturnProductsCollection1.GetMulti(filtReturnProductCondition);
            childBindingSource.DataSource = tblReturnProductsCollection1;
            dgvReturns.DataSource = childBindingSource;


TblReturnProductConditionCollection returnProductConditionCollection = new TblReturnProductConditionCollection();
            returnProductConditionCollection.GetMulti(null);

            cboReturnProductCondition.DataSource = returnProductConditionCollection;
            cboReturnProductCondition.ValueMember = "returnProductCondtionId";
            cboReturnProductCondition.DisplayMember = "returnProductCondtionName";
            cboReturnProductCondition.DataBindings.Clear();
            cboReturnProductCondition.DataBindings.Add(new Binding("SelectedValue", this.childBindingSource, myProject.TblReturnProductsFieldIndex.ReturnProductCondtionId.ToString(), true));

the cboReturnProductCondition_SelectIndexChanged event handler calls the above code.

hiya,

I'm still no further forward. Has anyone seen any of the errors that I am getting? The strange thing is that, I click "OK" to the error dialog box, then the operation actually succeeds

cheers,

yogi

right,

I think I know WHY i'm getting this error, but it's probably better if I start a new post.

cheers,

yogi