I'm using a GridView/DetailsView combo to view, edit and insert records. It appears to work for most fields, but I can't get past a problem on a value that is a date. My access db has the field set as DateTime, and the input is coming thru a simple textbox. I can view fields that already exist, and I can change dates quite easily, but every time I try to insert a new record, I get a null date being passed.

Is this not supported for dates? What am I doing wrong? (I've really trimmed the code back in the following example to make it easier to debug.)

 <asp:DetailsView AutoGenerateRows="False"
  ID="DetailsView1" runat="server"
  EnableViewState="True"
  CssClass="admintable"
  Width="350"
  Cellpadding="3"
  Cellspacing="0"
  Font-Name="Arial, Helvetica, sans-serif"
  Font-Size="12px"
  DataKeyNames="Rec_ID" DataSourceID="AccessDataSourceDetails"
        HeaderText="Event Details"
  OnItemInserting="DetailsView1_ItemInserting"
  OnItemUpdated="DetailsView1_ItemUpdated"
  OnItemInserted="DetailsView1_ItemInserted"
  >
 <HeaderStyle BackColor="#dddddd"
  Font-Bold="True"
  Font-Size="11"
  HorizontalAlign="Center" />
 <FooterStyle BackColor="#666666" Font-Bold="True" HorizontalAlign="Center" />
        <Fields>

  <%-- Event Name --%>
   <asp:TemplateField HeaderText="Name">
       <ItemTemplate>
     <asp:Label ID="EventName" Runat="Server" Text='<%# Eval("Name") %>' />
     </ItemTemplate>
    <EditItemTemplate>
     <asp:textbox id="EventName" runat="server"
      TextMode="SingleLine" Columns="35" text='<%#Bind("Name")%>' />
        </EditItemTemplate>
       <InsertItemTemplate>
     <asp:textbox id="InsertEventName" runat="server"
      TextMode="SingleLine" Columns="35" text='<%#Bind("Name")%>' />
     <asp:RequiredFieldValidator ID="RequiredFieldValidator1"
      runat="server" ControlToValidate="InsertEventName"
      ErrorMessage="Event Name is missing">*
      </asp:RequiredFieldValidator>
     </InsertItemTemplate>
     </asp:TemplateField>

   <%-- Event Date --%>
   <asp:TemplateField HeaderText="Event Date">
       <ItemTemplate>
          <asp:Label ID="EventDateLabel" Runat="Server"
                   Text='<%# Eval("Date1", "{0:d}") %>' />
        </ItemTemplate>
       <InsertItemTemplate>
     <asp:textbox id="InsertEventDate" runat="server"
      TextMode="SingleLine" Columns="10" Text='<%# Bind("Date1", "{0:d}") %>' />
     <asp:RequiredFieldValidator ID="RequiredFieldValidator2"
      runat="server" ControlToValidate="InsertEventDate"
      ErrorMessage="Event Date is missing">*
      </asp:RequiredFieldValidator>
       <asp:CustomValidator id="CustomValidator1" runat="server"
      ControlToValidate="InsertEventDate"
      OnServerValidate="ServerValidateED"
      Display="Static"
      ErrorMessage="Event Date is invalid">*
     </asp:CustomValidator>
     </InsertItemTemplate>

       <EditItemTemplate>
     <asp:textbox id="EditEventDate" runat="server"
      TextMode="SingleLine" Columns="10" Text='<%# Bind("Date1", "{0:d}") %>' />
     <asp:RequiredFieldValidator ID="RequiredFieldValidator3"
      runat="server" ControlToValidate="EditEventDate"
      ErrorMessage="Event Date is missing">*
      </asp:RequiredFieldValidator>
       <asp:CustomValidator id="CustomValidator2" runat="server"
      ControlToValidate="EditEventDate"
      OnServerValidate="ServerValidateED"
      Display="Static"
      ErrorMessage="Event Date is invalid">*
     </asp:CustomValidator>
     </EditItemTemplate>
      </asp:TemplateField>


              <asp:CommandField ShowEditButton="True" ShowInsertButton="True" ShowDeleteButton="True" />
            </Fields>
          </asp:DetailsView>

          <asp:AccessDataSource ID="AccessDataSourceDetails" runat="server"
         datafile="~/App_Data/WVEvents.mdb"
            SelectCommand="SELECT * FROM [EventHH] WHERE ([Rec_id] = @Rec_id)"
            UpdateCommand="UPDATE EventHH SET Name=@Name, Date1=@Date1
    WHERE Rec_ID = @Rec_ID"
            InsertCommand="INSERT INTO EventHH (Name,TrueEvent,Date1) VALUES (@Name,True,@Date1)"
    >
            <SelectParameters>
             <asp:ControlParameter ControlID="GridView1" Name="Rec_id" PropertyName="SelectedValue"
                 Type="String" />
             </SelectParameters>
            <UpdateParameters>
             <asp:Parameter Name="Name" Type="String" />
             <asp:Parameter Name="Date1" Type="DateTime" />
             </UpdateParameters>
            <InsertParameters>
             <asp:Parameter Name="Name" Type="String" />
              <asp:Parameter Name="TrueEvent" Type="Boolean" />
             <asp:Parameter Name="Date1" Type="DateTime" />
             </InsertParameters>
          </asp:AccessDataSource>