Click event on sub page menu makes my master page menu go away..???

Question

I've populated a menu using xml retrieved from a stored procedure and all is working great, except when I select an item from the sub menu and call a click event and it makes my main menu on my site.master go away and shifts the current aspx page up.
<asp:Menu ID="mnu_catproj" runat="server" BackColor="#B5C7DE" DynamicEnableDefaultPopOutImage="False" DynamicHorizontalOffset="2"
DynamicPopOutImageTextFormatString="" Style="position: relative;" Font-Bold="True" Font-Italic="False" Font-Names="Verdana" Font-Size="X-Small"
ForeColor="White" Orientation="Horizontal" StaticEnableDefaultPopOutImage="False" StaticSubMenuIndent="10px" >
<DataBindings>
<asp:MenuItemBinding DataMember="Category" TextField="#InnerText" ValueField="#Value" />
<asp:MenuItemBinding DataMember="Project" TextField="#InnerText" />
</DataBindings>
<DynamicHoverStyle BackColor="#CC9900" ForeColor="#0000CC" />
<DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<DynamicMenuStyle BackColor="#B5C7DE" />
<DynamicSelectedStyle BackColor="#507CD1" />
<StaticHoverStyle BackColor="#284E98" ForeColor="White" />
<StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
<StaticSelectedStyle BackColor="#507CD1" />
</asp:Menu>
Protected Sub mnu_catproj_MenuItemClick(sender As Object, e As MenuEventArgs) Handles mnu_catproj.MenuItemClick
lblCategory.Text = mnu_catproj.SelectedItem.Parent.Text.ToString()
lblProject.Text = mnu_catproj.SelectedItem.Text()
btnMD_submit.Enabled = True
End Sub
I know the click event is calling the subroutine but the Master Page menu goes away
<asp:Menu ID="MainMenu" runat="server" DataSourceID="XmlDataSource1" Font-Names="Verdana" ForeColor="#333399" ScrollDownImageUrl="/Images/menuSeparator.gif" StaticPopOutImageUrl="/Images/menuSeparator.gif" Orientation="Horizontal" DynamicPopOutImageUrl="~/Images/triangle-16.gif" ItemWrap="True" CssClass="menuStyle" Height="27px">
<DataBindings>
<asp:MenuItemBinding DataMember="Menu" Depth="0" TextField="text" Selectable="False" />
<asp:MenuItemBinding DataMember="SubMenu" Depth="1" NavigateUrlField="url" TextField="text" ValueField="url" />
<asp:MenuItemBinding DataMember="SubMenu" Depth="2" NavigateUrlField="url" TextField="text" ValueField="url" SelectableField="url" />
<asp:MenuItemBinding DataMember="SubMenu1" NavigateUrlField="url" TextField="text" ValueField="text" ToolTipField="#Value" TargetField="target" />
</DataBindings>
<DynamicHoverStyle BackColor="#003399" Font-Size="X-Small" ForeColor="White" Font-Bold="False" />
<DynamicMenuItemStyle HorizontalPadding="10px" VerticalPadding="5px" BackColor="#E5E5E5" BorderColor="#999999" BorderStyle="Solid" BorderWidth="0.01em" Font-Size="X-Small" ForeColor="Black" />
<DynamicMenuStyle BackColor="#E5E5E5" />
<DynamicSelectedStyle BackColor="#507CD1" Font-Size="X-Small" />
<StaticHoverStyle BackColor="#FF9900" ForeColor="White" Font-Bold="False" />
<StaticMenuItemStyle HorizontalPadding="15px" VerticalPadding="4px" />
<StaticMenuStyle CssClass="menuStyle" />
<StaticSelectedStyle BackColor="#FFCC66" />
</asp:Menu>
finally: this works fine in Firefox browser but not in IE or Chrome

Answer 1

Hi DeanO78O,
This forum is to discuss problems of Windows Forms. Your question is not related to the topic of this forum.
You could  post it in the dedicated ASP.Net Forum
http://forums.asp.net for more efficient responses, where you can contact ASP.NET experts.
Best regards,
Youjun Tang
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.