how to change the tab title at runtime?

[sourabh tewari]

Well I am trying to change the tab heading titles programmatically at runtime...just trying out the trial version...I am new...so please don't mind my ignorance...I tried to search but in vain.Everytime I tried to change the text property of the radtab from code behind...I end up with an object null reference error...lemme tell you what I tried...I need to know as to how do we set the title of a tab at runtime without ending up with an "Object reference not set to an instance of an object." error.

public partial class JobseekerHome : BasePage
{
    #region RadStripBar
    protected override void Page_Load(object sender, System.EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            AddTab("LanguageUC", "Mini profile");
            AddPageView(RadTabStrip1.FindTabByText("LanguageUC"));
            AddTab("OrdersCS", "Experience");
            AddTab("ProjectUC", "Experience");
        }
    }

    private void AddTab(string tabValue, string tabName)
    {
        RadTab tab = new RadTab();
        tab.Text = tabValue;
        tab.Value = tabName;
        RadTabStrip1.Tabs.Add(tab);
    }

    protected void RadMultiPage1_PageViewCreated(object sender, RadMultiPageEventArgs e)
    {
        string userControlName = e.PageView.ID + ".ascx";

        Control userControl = Page.LoadControl(userControlName);
        userControl.ID = e.PageView.ID + "_userControl";

        e.PageView.Controls.Add(userControl);
        e.PageView.FindControl(RadTabStrip1.FindTabByText("LanguageUC").Text="Language");
        e.PageView.FindControl(RadTabStrip1.FindTabByText("OrdersCS").Text = "Orders");
    }

    private void AddPageView(RadTab tab)
    {
        RadPageView pageView = new RadPageView();
        pageView.ID = tab.Text;
        RadMultiPage1.PageViews.Add(pageView);
        pageView.CssClass = "pageView";
        tab.PageViewID = pageView.ID;
    }

    protected void RadTabStrip1_TabClick(object sender, RadTabStripEventArgs e)
    {
        AddPageView(e.Tab);
        e.Tab.PageView.Selected = true;
    }

    #endregion

[sourabh tewari]

I have fixed my problem.

[Alfonso]

protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            if (Session["Codigo"] == null)
            {
                //Response.Redirect(Common.NavegacionWeb.Entrada);
            }
            Session["Validate"] = true;
            AddTab("SolicitudCmp","Solicitud");
            AddPageView(rdtbstrmenu.FindTabByValue("SolicitudCmp"));
            AddTab("Contrato","Contrato / Orden de Compra");
            //AddTab("Contrato");
        }

        if (Session["flagValidate"] != null)
        {
            if (((bool?)Convert.ToBoolean(Session["flagValidate"])) == false)
            {
                //Validate();
                Page.Validate("Diligenciamiento");
                Page.Validate("Location");
                this.UpdatePanelCuerpo.Update();
            }
            else
            {
                if (((bool?)Convert.ToBoolean(Session["Validate"])) == true)
                {
                }
                else
                {
                    //Validate();
                    Page.Validate("Diligenciamiento");
                    Page.Validate("Location");
                    this.UpdatePanelCuerpo.Update();
                }
            }
        }
    }
    private void AddTab(string tabValue, string tabName)
    {
        RadTab tab = new RadTab();
        tab.Text = tabName;
        tab.Value = tabValue;
        tab.Width = Unit.Pixel(200);
        rdtbstrmenu.Tabs.Add(tab);
    }
    protected void rdmltpgmenu_PageViewCreated(object sender, RadMultiPageEventArgs e)
    {        
        string userControlName = "~/Controls/" + e.PageView.ID + ".ascx";
        Control userControl = Page.LoadControl(userControlName);
        userControl.ID = e.PageView.ID + "_userControl";

        e.PageView.Controls.Add(userControl);
    }
    private void AddPageView(RadTab tab)
    {
        RadPageView pageView = new RadPageView();
        pageView.ID = tab.Value;
        pageView.CssClass = "contentWrapper" + tab.Index;
        rdmltpgmenu.PageViews.Add(pageView);
        tab.PageViewID = pageView.ID;
    }
    protected void rdtbstrmenu_TabClick(object sender, RadTabStripEventArgs e)
    {
        AddPageView(e.Tab);
        e.Tab.PageView.Selected = true;
    }

[Alfonso]

protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            if (Session["Codigo"] == null)
            {
                //Response.Redirect(Common.NavegacionWeb.Entrada);
            }
            Session["Validate"] = true;
            AddTab("SolicitudCmp","Solicitud");
            AddPageView(rdtbstrmenu.FindTabByValue("SolicitudCmp"));
            AddTab("Contrato","Contrato / Orden de Compra");
            //AddTab("Contrato");
        }

        if (Session["flagValidate"] != null)
        {
            if (((bool?)Convert.ToBoolean(Session["flagValidate"])) == false)
            {
                //Validate();
                Page.Validate("Diligenciamiento");
                Page.Validate("Location");
                this.UpdatePanelCuerpo.Update();
            }
            else
            {
                if (((bool?)Convert.ToBoolean(Session["Validate"])) == true)
                {
                }
                else
                {
                    //Validate();
                    Page.Validate("Diligenciamiento");
                    Page.Validate("Location");
                    this.UpdatePanelCuerpo.Update();
                }
            }
        }
    }
    private void AddTab(string tabValue, string tabName)
    {
        RadTab tab = new RadTab();
        tab.Text = tabName;
        tab.Value = tabValue;
        tab.Width = Unit.Pixel(200);
        rdtbstrmenu.Tabs.Add(tab);
    }
    protected void rdmltpgmenu_PageViewCreated(object sender, RadMultiPageEventArgs e)
    {
        string userControlName = "~/Controls/" + e.PageView.ID + ".ascx";
        Control userControl = Page.LoadControl(userControlName);
        userControl.ID = e.PageView.ID + "_userControl";

        e.PageView.Controls.Add(userControl);
    }
    private void AddPageView(RadTab tab)
    {
        RadPageView pageView = new RadPageView();
        pageView.ID = tab.Value;
        pageView.CssClass = "contentWrapper" + tab.Index;
        rdmltpgmenu.PageViews.Add(pageView);
        tab.PageViewID = pageView.ID;
    }
    protected void rdtbstrmenu_TabClick(object sender, RadTabStripEventArgs e)
    {
        AddPageView(e.Tab);
        e.Tab.PageView.Selected = true;
    }