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troubleshooting Question

Combo-box crashing Win-forms C# app

Avatar of Adapt2NL
Adapt2NL asked on
.NET ProgrammingMicrosoft Development
6 Comments1 Solution397 ViewsLast Modified:
Application data source is an Entity Framework. The Combo-box is bound to the data using a bindingSource control and when I attempt to exit the application the combo-box goes blank and the application hangs. It doesnt close and no further mouse clicks are accepted.

Interestingly I see that the SelectedIndexChanged event happens multiple times when I move between records using the navigator even when I dont change the combo box and it seems as if something happens to the combo box as I attempt to close the app using the red top right hand x.

There is no other code other than what you see attached and what is generated by VS2010.
namespace Sales
    public partial class frmMain : Form
        public frmMain()

        private void frmMain_Load(object sender, EventArgs e)

        private void GetCustomers()
            var myData = new IIAAModel.IIAAEntities();
            var customerQuery = from c in myData.tblCustomers
                                select c;

            tblCustomerBindingSource.DataSource = customerQuery.ToList();
        /*private void GetOneCustomer(int CustomerID) 
            var myData = new IIAAModel.IIAAEntities();
            var customerQuery = from c in myData.tblCustomers
                                where c.lngCustomerID == CustomerID
                                select c;

        private void cboAccountNumber_SelectedIndexChanged(object sender, EventArgs e)

                MessageBox.Show("cbo Changed");
            catch (Exception ex)

Avatar of rogerard
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