Note that I am setting the datepicker.SharedCalendar.FastNavigationStep = 12, so that the FastNavigation should jump by 12 months.
However, it still jumps by the default 3 months. The FastNavigationStep property update is not taking. Incidentally, the FastNavigationPreviousToolTip and FastNavigationNextToolTip are not taking either.
Any help would be appreciated.
Code:
         <telerik:RadGrid ID="grdFamily" runat="server" DataSourceID="ldsUserFamilyMembers" Skin="Vista"    Width="500px"
                 AutoGenerateColumns="false" AllowAutomaticDeletes="true" AllowAutomaticInserts="true" AllowAutomaticUpdates="true" 
                    GridLines="None" PageSize="5" OnItemDataBound="RadGrid1_ItemDataBound"
                    AllowPaging="True"  >
                    
                    <MasterTableView DataKeyNames="pk_user_family_member"  TableLayout="Fixed" CommandItemDisplay="Top"  DataSourceID="ldsUserFamilyMembers" Width="500px">
                        <Columns>
                        ...
                        <telerik:GridDateTimeColumn  DataField="birth_date" PickerType="DatePicker" DataFormatString="{0:MMM dd, yyyy}" HeaderText="Birth Day" >
                            </telerik:GridDateTimeColumn>
                       ...
                        </Columns>
                        <EditFormSettings>
                            <EditColumn ButtonType="ImageButton" />
                        </EditFormSettings>
                    </MasterTableView>
                </telerik:RadGrid>
 protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
        {
            if (e.Item is GridDataItem && e.Item.IsInEditMode)
            {
                GridEditableItem item = (GridEditableItem)e.Item;
                RadDatePicker datepicker = (RadDatePicker)item["DateTimeColumn"].Controls[0];
                datepicker.SharedCalendar.FastNavigationStep = 12; 
                datepicker.SharedCalendar.FastNavigationNextToolTip = "Next Month";
                datepicker.SharedCalendar.FastNavigationPrevToolTip = "Previous Month";
            }
        }
