Guid insert problem

[Teoman]

Hi,
i am binging scheduler with ef datasource.but it always insert pk 00000-0000.And i have another problem.i add resource which i want to save email it automatically adds combobox?how i can change it with textbox?any solution?

  <telerik:RadScheduler ID="RadScheduler1" runat="server" DataEndField="ENDDATE"
                    DataKeyField="RESERVATIONID" DataSourceID="EntityDataSource1"
                    DataStartField="STARTDATE" DataSubjectField="SUBJECT">
                    <ResourceTypes>
                        <telerik:ResourceType DataSourceID="EntityDataSource1" KeyField="NAMESURNAME"
                            Name="AD SOYAD" TextField="NAMESURNAME" ForeignKeyField="NAMESURNAME" />
                        <telerik:ResourceType DataSourceID="EntityDataSource1" KeyField="PHONE"
                            Name="TELEFON" TextField="PHONE" ForeignKeyField="PHONE" />
                    </ResourceTypes>
                </telerik:RadScheduler>
                <asp:EntityDataSource ID="EntityDataSource1" runat="server"
                    ConnectionString="name=CCEntities" DefaultContainerName="CCEntities"
                    EnableDelete="True" EnableFlattening="False" EnableInsert="True"
                    EnableUpdate="True" EntitySetName="RESERVATIONS">
                </asp:EntityDataSource>