Question

I have placed a checkboxlist in a formview object.
I would like to store and load the results of the checkboxlist in a table of an entity framework.

I filled the cbl with values and labels coming from a table that has 2 columns, using the DataSourceID, DataTextField and DataValueField attributes but I can’t seem to find how to bind the cbl to the entity framework object in order to store the checked values when the formview is in “EDIT” mode.

Any help would be appreciate. Thanks!

<asp:FormView ID="formView1" runat="server" DataSourceID="Ods1" 
        Height="203px" Width="495px" 
        onpageindexchanging="formView1_PageIndexChanging">
<EditItemTemplate>
    <asp:CheckBoxList ID="cblProducts" runat="server" RepeatColumns="3" 
                Width="782px" DataSourceID="SqlDataSource1" DataTextField="ProductName" 
                DataValueField="ProductCode">
    </asp:CheckBoxList>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
                ConnectionString="<%$ ConnectionStrings:ApplicationServices %>" 
                SelectCommand="SELECT [ProductCode], [ProductName] FROM [Products]">
    </asp:SqlDataSource>
</EditItemTemplate>
</asp:FormView>
    <asp:ObjectDataSource ID="Ods1" runat="server" 
        DataObjectTypeName="WebApplication1.EDM.Emp" DeleteMethod="DeleteEmp" 
        InsertMethod="CreateNewEmp" OldValuesParameterFormatString="original_{0}" 
        SelectMethod="GetEmpByEmpId" TypeName="WebApplication1.EDM.EmpLogic" 
        UpdateMethod="UpdateEmp" OnSelecting="Ods1_Selecting">
        <SelectParameters>
            <asp:RouteParameter Name="EmpId" RouteKey="EmpId" Type="String" />
        </SelectParameters>
    </asp:ObjectDataSource>

Answer 1

<asp:FormView ID="formView1" runat="server" 
     OnItemUpdating="formView1_ItemUpdating" ...>

protected void formView1_ItemUpdating(object sender, FormViewUpdateEventArgs e)
{
   var cblProducts = formView1.FindControl("cblProducts") as CheckBoxList;

   foreach (ListItem item in cblProducts.Items)
   {
       if (item.Selected)
       {
           // Check if item.Value is not in the db for this employee, if so add it
       }
       else
       {
           // Check if item.Value is in the db for this employee, if so delete it
       }
   }

   // save
}