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making Parent Menu Item no click

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grant
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grant asked on 15 Aug 2008, 04:30 PM
I am using a menu control with submenus generated from database.  Is there a way to make the parent non clickable.  Right now when the parent gets clicked, the subs are displayed twice.

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Veselin Vasilev
Telerik team
answered on 18 Aug 2008, 07:54 AM
Hello grant,

You can subscribe to the OnClientItemClicking client-side event and cancel it if the level of the item is 0.

<script type="text/javascript"
function onClicking(sender, eventArgs) 
  var item = eventArgs.get_item(); 
   
  if (item.get_level() == 0) 
  { 
      eventArgs.set_cancel(true); 
  } 
</script> 
<telerik:RadMenu ID="RadMenu1" runat="server" 
   OnClientItemClicking="onClicking"
 


Greetings,
Veskoni
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grant
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answered on 18 Aug 2008, 12:29 PM
Thanks for that, it seems to be working fine.  However when the parent item is clicked it returns an error on the page.  Is this normal or did I miss something? 

Also is there any way to return a message to direct the user on how to properly navigate the menu?
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Veselin Vasilev
Telerik team
answered on 18 Aug 2008, 01:09 PM
Hi grant,

What is the error that you get?

Please paste here all the relevant code so we can reply accordingly.

Thanks

Best wishes,
Veskoni
the Telerik team

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grant
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answered on 18 Aug 2008, 06:14 PM

I managed to find an easy solution to the problem. 

For the menu items that I dont want to be clickable, I simply made the Navigate URL = "#".

Works like a charm, and is quite simple...

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grant
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answered on 18 Aug 2008, 06:15 PM

The menu at : http://www.atlanticportal.com/AtlanticPortal/en/NS.aspx

Works corectly, the parents are not clickable.

I have a different menu for http://www.atlanticportal.com/AtlanticPortal/en/NL.aspx Which is formed in exactly the same way but it generates an <a href="javascript:__doPostBack

The vb code for both menus are as follows.:

Working Menu:

Imports

System.Data.Odbc

Imports

System.Data

Imports

Telerik.WebControls

Partial

Class controls_SideNav

Inherits System.Web.UI.UserControl

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Dim dbcommand As OdbcCommand

Dim dbconnection As OdbcConnection

Dim dbreader As OdbcDataReader

Dim sql As String

dbconnection =

New OdbcConnection("DSN=AtlanticPortal;")

dbconnection.Open()

sql =

"Select * FROM Region WHERE ProvID = " & Session("ProvId").ToString

dbcommand =

New OdbcCommand(sql, dbconnection)

dbreader = dbcommand.ExecuteReader(CommandBehavior.CloseConnection)

Dim dt As DataTable = New DataTable

dt.Load(dbreader)

dbconnection.Close()

dbreader.Close()

Dim radMenu As RadMenu

radMenu =

CType(Me.FindControl("RadMenuSideNav"), Telerik.WebControls.RadMenu)

'Home

Dim parentItem As RadMenuItem

Dim childItem As RadMenuItem

parentItem = radMenu.Items(0)

Select Case Session("ProvID").ToString

Case "1"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/NL.aspx"

Case "2"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/NS.aspx"

Case "3"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/NB.aspx"

Case "4"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/PEI.aspx"

End Select

 

If dt.Rows.Count > 0 Then

'Where To Stay

parentItem = radMenu.Items(1)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/WhereToStayoth.aspx?Region=" & row("ID").ToString & "&Community=0&Category=0&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Where To Eat

parentItem = radMenu.Items(2)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/WhereToEatoth.aspx?Region=" & row("ID").ToString & "&Community=0&Category=0&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Attractions

parentItem = radMenu.Items(3)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/ThingsToDooth.aspx?Region=" & row("ID").ToString & "&Community=0&Category=0&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Services

parentItem = radMenu.Items(4)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/Servicesoth.aspx?Region=" & row("ID").ToString & "&Community=0&Category=0&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Getting Here

parentItem = radMenu.Items(5)

parentItem.NavigateUrl =

"~/AtlanticPortal/en/GettingHereoth.aspx?ProvID=" & Session("ProvID").ToString

'Travel Tools

parentItem = radMenu.Items(6)

parentItem.NavigateUrl =

"~/AtlanticPortal/en/TravelToolsoth.aspx?ProvID=" & Session("ProvID").ToString

End If

End Sub

End

Class






Non Working Menu:

Imports

System.Data.Odbc

Imports

System.Data

Imports

Telerik.WebControls

Partial

Class controls_SideNav

Inherits System.Web.UI.UserControl

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Dim dbcommand As OdbcCommand

Dim dbconnection As OdbcConnection

Dim dbreader As OdbcDataReader

Dim sql As String

dbconnection =

New OdbcConnection("DSN=AtlanticPortal;")

dbconnection.Open()

sql =

"Select * FROM Region WHERE ProvID = " & Session("ProvId").ToString

dbcommand =

New OdbcCommand(sql, dbconnection)

dbreader = dbcommand.ExecuteReader(CommandBehavior.CloseConnection)

Dim dt As DataTable = New DataTable

dt.Load(dbreader)

dbconnection.Close()

dbreader.Close()

Dim radMenu As RadMenu

radMenu =

CType(Me.FindControl("RadMenuSideNav"), Telerik.WebControls.RadMenu)

'Home

Dim parentItem As RadMenuItem

Dim childItem As RadMenuItem

parentItem = radMenu.Items(0)

Select Case Session("ProvID").ToString

Case "1"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/NL.aspx"

Case "2"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/NS.aspx"

Case "3"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/NB.aspx"

Case "4"

parentItem.NavigateUrl =

"~/AtlanticPortal/en/PEI.aspx"

End Select

 

If dt.Rows.Count > 0 Then

'Hotels

parentItem = radMenu.Items(2)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/WhereToStay.aspx?Region=" & row("ID").ToString & "&Community=0&Category=1&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'B&B's

parentItem = radMenu.Items(3)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/WhereToStay.aspx?Region=" & row("ID").ToString & "&Community=0&Category=6&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Cabins

parentItem = radMenu.Items(4)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/WhereToStay.aspx?Region=" & row("ID").ToString & "&Community=0&Category=4&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Campgrounds

parentItem = radMenu.Items(5)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/WhereToStay.aspx?Region=" & row("ID").ToString & "&Community=0&Category=100&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Restaurants

parentItem = radMenu.Items(6)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/WhereToEat.aspx?Region=" & row("ID").ToString & "&Community=0&Category=3&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'attractions

parentItem = radMenu.Items(7)

For Each row As DataRow In dt.Rows

childItem =

New RadMenuItem

childItem.Text = row(

"Name").ToString

childItem.NavigateUrl =

"~/AtlanticPortal/en/ThingsToDo.aspx?Region=" & row("ID").ToString & "&Community=0&Category=0&CategoryName=Attraction&ProvID=" & Session("ProvID").ToString & "&RegionName=" & row("Name").ToString

parentItem.Items.Add(childItem)

Next

'Getting Here

parentItem = radMenu.Items(8)

parentItem.NavigateUrl =

"~/AtlanticPortal/en/GettingHere.aspx?ProvID=" & Session("ProvID").ToString

'Travel Tools

parentItem = radMenu.Items(9)

parentItem.NavigateUrl =

"~/AtlanticPortal/en/TravelTools.aspx?ProvID=" & Session("ProvID").ToString

End If

End Sub

Protected Sub RadMenuSideNav_ItemClick(ByVal sender As Object, ByVal e As Telerik.WebControls.RadMenuEventArgs) Handles RadMenuSideNav.ItemClick

End Sub

End

Class




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Veselin Vasilev
Telerik team
answered on 21 Aug 2008, 02:51 PM
Hello grant,

Have you managed to fix this?

I do not see the __doPostBack in the source of the second page.

Greetings,
Veskoni
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.
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Veselin Vasilev
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