Which event takes value the session's variables?

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I'm invoking in the ItemDataBound event of repeater control an object that uses the value of the user's session, but I get error, it seems that the object can not to be created and when I use this same object in subsequent events at load, I haven't problem, I need to know when to start the session's variables at exist?.

the code is the follow:

C#

protected void repDias_OnItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
	DateTime date = (DateTime)e.Item.DataItem;
	Literal litDia = (Literal)e.Item.FindControl("litDia");
	HtmlTableCell tdDia = (HtmlTableCell)e.Item.FindControl("tdDia");
	int vencidos=0;
	int mantenimientos = 0;
	string usuarioid;
	string clienteid;
    if (Session["Usuarioid"] != null)
		usuarioid = Session["Usuarioid"].ToString();
	if (Session["clienteid"] != null)
		clienteid = Session["clienteid"].ToString();
	lstFechaMantenimiento.DataSource = _m.obtenerTodos("", "",usuarioid, "", clienteid);
	lstFechaMantenimiento.DataTextField = "sigrev";
	lstFechaMantenimiento.DataValueField = "id";
	lstFechaMantenimiento.DataBind();
	DateTime dt= new DateTime();
	DateTime dthoy = new DateTime();
	DateTime dtfecha = new DateTime();
	dt=DateTime.Now;
	string hoy = string.Format("{2}-{1}-{0}", dt.Year, dt.Month.ToString("D2"), dt.Day.ToString("D2"));
	dthoy = Convert.ToDateTime(hoy); 
	if (date.DayOfWeek == DayOfWeek.Saturday || date.DayOfWeek == DayOfWeek.Sunday)
		tdDia.Attributes.Add("class", "weekend");
		if (_actualMes == date.Month)
		{
			litDia.Text = string.Format("<a href=\"{0}?CalDate={3}-{2}-{1}\"{4}>{3}</a>", Request.Path, date.Year, date.Month.ToString("D2"), date.Day.ToString("D2"), (_specialDaySelected && date.Equals(_selectedDate)) ? " class=\"selected\"" : string.Empty);
			fechamantenimiento = string.Format("{2}-{1}-{0}", date.Year, date.Month.ToString("D2"), date.Day.ToString("D2"));
			dtfecha = Convert.ToDateTime(fechamantenimiento); 
			for (int i = 0; i < lstFechaMantenimiento.Items.Count; i++)
			{
				if (dthoy <= dtfecha)
				{
					if (fechamantenimiento == lstFechaMantenimiento.Items[i].Text)
					{	mantenimientos = mantenimientos + 1;	}
				}
				else
				{
					if (fechamantenimiento == lstFechaMantenimiento.Items[i].Text)
					{	vencidos = vencidos + 1;	}
				}
			}
			if (mantenimientos > 0)
				tdDia.Attributes.Add("class", "fechamantenimiento");
			if (vencidos > 0)
				tdDia.Attributes.Add("class", "vencido");
		}
		else
			litDia.Text = string.Format("<span>{0}</span>", date.Day.ToString("D2"));
		tdDia.ID = string.Empty;	
	}
}

Please, someone could help me.
thans in advance.

Posted 31-Jul-14 4:19am

danigeraleddin

Updated 4-Aug-14 3:50am

v9

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Comments

_Amy 31-Jul-14 11:10am

Can I see your code?

danigeraleddin 31-Jul-14 12:13pm

My guide is the following link http://stackoverflow.com/questions/4724350/asp-net-availability-calendar-showing-full-year , my purpose is to assign a class to a cell in an annual calendar, the color of the cell depends on the values that are in a list that is filled with a procedure that uses the session's variable, but i believe that the session's variable is null at the time. I updated my question and I've put the code

Wombaticus 31-Jul-14 13:18pm

page_load is called before OnItemDataBound, or indeed before any controls' events.

danigeraleddin 31-Jul-14 15:11pm

According to the page's trace , the databound event fires before the page loads as often as needed to build the control. This is the order of events showing me the trace.

Begin PreInit,End PreInit,Begin Init,End Init,Begin InitComplete,End InitComplete,Begin PreLoad,End PreLoad,Begin Load,Page_Load,End Load,Begin LoadComplete,End LoadComplete,Begin PreRender,End PreRender,Begin PreRenderComplete,End PreRenderComplete,Begin SaveState,End SaveState,Begin SaveStateComplete,End SaveStateComplete,Begin Render,End Render.

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Abhinav S · Accepted Answer · 2014-08-01T18:53:00

Solution 1

Use the System.Web.HttpContext.Current.Session class to read session variables.
For e.g. var param = System.Web.HttpContext.Current.Session["loginParameters"].

Posted 1-Aug-14 18:53pm

Abhinav S

Comments

danigeraleddin 4-Aug-14 9:58am

Hi, thank for the post, I tried with System.Web.HttpContext.Current.Session, but the problem persists, for events prior to load the session variable appears with null.