Question

I found something weird. Let’s say I have a Car model and a Company model.

So my Car model has a CompanyId row.

Let’s say I change a Car‘s CompanyId then I SubmitChanges on the DataContext.

Here’s my problem:
The CompanyId of my Car model gets updated. But the Car.Company relation does NOT.

So if I change Car.CompanyId from 1 to 2. Then I output Car.Company.CompanyId, it’ll show up 1 instead of 2.

So my question is: Is there a way to update EVERYTHING in the DataContext?

I’m currently using:

public void RefreshCollection()
{
    // On rafraichit les données à partir de la DB.
    dataContext.Refresh(RefreshMode.KeepChanges);

    // On va chercher les données complête de la table.
    purchaseOrders = from po in dataContext.PurchaseOrders
                     orderby po.PurchaseOrderId ascending
                     select po;
}

To update my collection.

And:

private void sauvegarderToolStripMenuItem_Click(object sender, EventArgs e)
{
    purchaseOrder.OrderDate = orderDate.Value;
    purchaseOrder.RequiredDate = requiredDate.Value;
    purchaseOrder.ShipTo = shipTo.Text;
    purchaseOrder.State = helper.ConvertComboBoxIndexToStateIndex(
        stateKey.SelectedIndex);

    // On cast un autre type pour le forcer à être un ComboBoxItem
    var supplierItem = (ComboBoxItem)supplierId.SelectedItem;
    purchaseOrder.SupplierId = supplierItem.Id;

    dataContext.SubmitChanges();
}

To submit my changes.

Answer 1

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