Question

Is it recommended to check the Page.IsPostBack in a user control Page_Load Event like

    protected void Page_Load(object sender, EventArgs e)
    {

        if (!Page.IsPostBack)
        {


        }


    }

I am getting wierd results

Edit ~ Here is the thing. When the main form is loaded, I use Request.QueryString to get the customer id which I then place in a SESSION variable.

On the control Load event I read the SESSION variable to get the data for that customer. So, do I need to check PostBack at the control level?

Edit ~ Here is the load event of the control

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            //Getting and storing the customer account number 
            if (string.IsNullOrEmpty((string)Session["CustomerNumber"]))
            {
                Session["CustomerNumber"] = cust.GetCustomerNumber(myHelper.GetCustomerIDFromQueryString());
                LoadProductData();
            }
        }

    }

Here is the myHelper Class

static class myHelper
{
    public static Guid GetCustomerIDFromQueryString()
    {
        //Getting the GUID (used as customerid in CRM) from the URL request of the selected account.  
        return Sql.ToGuid(System.Web.HttpContext.Current.Request["ID"]);
    }

}

}

Answer 1

If you use “!IsPostBack” in page load, when the user click other control it do a postBack, so you don’t get your data.
I hope that helps you.