RadTabStrip with RadMultiPage

[Gromiko]

Hi Telerik Team,

I am developing a webpart using RadTabStrip structure associated to a RadMultipage that can contain three RadPageViews.
Every single RadPageView has a set of controls grouped in a single custom class.
This structure is displayed properly on the page, but when I save data to use them in the next page, I try to access the controls in each of these pageviews but I don't find them.
In fact, the call PageView.Controls [index] gives the following error: 'SystemArgumentException index was out of range'.
Also when I perform a FindControl ("MyCustomControl") on every single multipage or on PageView for direct research of my custom control I receive as output 'null'. Now  I attach my code.

ASPX

 <div class="el-tabview-strip">
       <rad:RadTabStrip ID="RadTabStrip1" runat="server" Orientation="VerticalLeft" SelectedIndex="0" MultiPageID="RadMultiPage1"></rad:RadTabStrip>
 </div>
 <div class="el-tabview-content">
        <div>
            <rad:RadMultiPage ID="RadMultiPage1" runat="server" SelectedIndex="0" Height="416px" ></rad:RadMultiPage>
        </div>
 </div>

ASPX.CS

 

protected void Page_Load(object sender, EventArgs e)
{
   if (!IsPostBack)
      {
       List<String> aac = GetState();
       foreach (String cc in aac)
              {
               //Adding View to MultiPage
               Telerik.Web.UI.RadPageView view = new Telerik.Web.UI.RadPageView();
                    view.ID = ClientID + "radPageView" + cc.NumeroCC;
                    CustomControls MyCustomControl = new CustomControls();
                    MyCustomControl.ID = ClientID + "customContol" + cc.NumeroCC;
                    view.Controls.Add(MyCustomControl);
                    RadMultiPage1.PageViews.Add(view);
                    //Adding Tab to RAdstrip
                    Telerik.Web.UI.RadTab tab = new Telerik.Web.UI.RadTab();
                    tab.Text = "C/C " + cc.NumeroCC.Replace("/", " / ");
                    tab.CssClass = "tabsTab paddingTop17";
                    tab.SelectedCssClass = "tabsTab tabsTabSelected paddingTop17";
                    tab.PageViewID = ClientID + "radPageView" + cc.NumeroCC;
                    RadTabStrip1.Tabs.Add(tab);
                }
            }
        }
 public override void SaveNavigationState(Core.NavigationEventArgs e)
        {
            List<String> list = new List<String>();
            String aac = new String();
            for (int i = 0; i < RadMultiPage1.Controls.Count; i++)
            {
                Telerik.Web.UI.RadPageView pageView = RadMultiPage1.Controls[i] as Telerik.Web.UI.RadPageView;
                CustomControls current = pageView.Controls[i] as CustomControls;
                if (current == null)
                    return;
                aac = current.GetControl(); //This Method Return the value of all control grouped in the CustomControl
                list.Add(aac);
            }
    }

I hope you can help me.
Best regards,
Gromiko Francese

[Dimitar Terziev]

Hi Gromiko,

The code that you are using seems right. Could you clarify whether this is a SharePoint application and if so which version of SharePoint you are using?

Kind regards,
Dimitar Terziev
the Telerik team

[Gromiko]

HI Dimitar,
Thanks for your reply.
Yes it's a SharePoint Application.
I'm using SharePoint 2010.

Best Regards,
Gromiko Francese

[Kalina]

Hello Gromiko,

Thank you for the additional details provided.
However I doubt that the issue is SharePoint related because I succeeded to reproduce it with a simple ASP.NET page.

I inspected your code and I will suggest you add the custom control at PageViewCreated event handler.
Please find more details about this approach at the sample page provided. It is a very basic implementation but I believe it will help you resolve the issue.



All the best,
Kalina
the Telerik team