Entity Framework CheckboxList Database Insert - entity-framework

Question

UPDATED:
I'm using a Detailsview Insert Control and I am trying to create a new row in the database from a checkbox in a CheckBoxList. I'm getting the "The INSERT statement conflicted with the FOREIGN KEY constraint"
Here is my cs:
protected void AddPrincipleStaffDetailsView_ItemInserting(object sender, DetailsViewInsertEventArgs e)
{
CheckBoxList PrincipleStaffTitle = (CheckBoxList)FindControl("PrincipleStaffTitle");
if (PrincipleStaffTitle != null)
{
foreach (ListItem item in PrincipleStaffTitle.Items)
{
if (item.Selected)
{
string stringSession = Session["ProductionID"].ToString();
int intProductionID = Int32.Parse(stringSession);
var ID = item.Value;
using (var context = new FactoryTheaterModelFirstContainer())
{
PrincipleStaff principlestaff = new PrincipleStaff();
principlestaff.PrincipleStaffTitle = ID;
principlestaff.Production_proProductionID = intProductionID;
context.PrincipleStaffs.Add(principlestaff);
context.SaveChanges();
}
}
}
}
here is the aspx:
<asp:EntityDataSource ID="PrincipleStaffSource" runat="server" ConnectionString="name=FactoryTheaterModelFirstContainer" DefaultContainerName="FactoryTheaterModelFirstContainer" EnableFlattening="False" EntitySetName="PrincipleStaffs" EntityTypeFilter="PrincipleStaff" EnableInsert="True"></asp:EntityDataSource>
<asp:DetailsView ID="AddPrincipleStaffDetailsView" runat="server" AutoGenerateRows="False" DataKeyNames="PrincipleStaffID" DataSourceID="PrincipleStaffSource" Height="50px" Width="730px" DefaultMode="Insert" OnItemInserting="AddPrincipleStaffDetailsView_ItemInserting" OnItemInserted="AddPrincipleStaffDetailsView_ItemInserted">
<Fields>
<asp:TemplateField HeaderText="Add Principle Staff Role:" SortExpression="PrincipleStaffTitle">
<InsertItemTemplate>
<asp:CheckBoxList ID="PrincipleStaffTitle" runat="server" SelectedValue='<%# Bind("PrincipleStaffTitle") %>'>
<asp:ListItem Value="Director">Director(s)</asp:ListItem>
<asp:ListItem Value="Assistant Director">Assistant Director(s)</asp:ListItem>
<asp:ListItem Value="Written By">Written By(s)</asp:ListItem>
<asp:ListItem Value="Executive Producer">Executive Producer(s)</asp:ListItem>
<asp:ListItem Value="Producer">Producer(s)</asp:ListItem>
<asp:ListItem Value="Techincal Director">Technical Director(s)</asp:ListItem>
</asp:CheckBoxList>
</InsertItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("PrincipleStaffTitle") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowInsertButton="True" />
</Fields>
</asp:DetailsView>
The Production.proProductionID is the foreign key that I'm trying to get into the PrincipleStaff Production_proProductionid column. I can't seem to create the FK relationship.
Thanks for any help that can be provided!

Answer 1

The Below code works. I've since moved my context.savechanges(); outside the loop. My issue was happening on my ItemInserted command.
protected void AddPrincipleStaffDetailsView_ItemInserting(object sender, DetailsViewInsertEventArgs e)
{
CheckBoxList PrincipleStaffCheckBox = (CheckBoxList)AddPrincipleStaffDetailsView.FindControl("PrincipleStaffTitleCheckBoxList");
if (PrincipleStaffCheckBox.Items.Count > 0)
{
foreach (ListItem item in PrincipleStaffCheckBox.Items)
{
if (item.Selected)
{
string stringSession = Session["ProductionID"].ToString();
int intProductionID = 0;
intProductionID = Int32.Parse(stringSession);
var principlestafftitle = item.Value;
try
{
using (var context = new FactoryTheaterModelFirstContainer())
{
Production proid = context.Productions.Single(i => i.proProductionID == intProductionID);
PrincipleStaff principlestaff = new PrincipleStaff()
{
PrincipleStaffTitle = principlestafftitle,
Production_proProductionID = intProductionID
};
proid.PrincipleStaffs.Add(principlestaff);
context.SaveChanges();
}
}
catch (Exception f)
{
Console.WriteLine(f); // or log to file, etc.
throw; // re-throw the exception if you want it to continue up the stack
}
}
}
}
}