Add new list row using Object Model is sharepoint list

private void updateSharePoint(NewSSP_SubmitBLLFields objNewSSP, stringstrNotifiers)
{ SPSite siteCollection = null;
SPWeb topLevelSite = null;


string strNewXRef = String.Empty;
bool blnNoError = true;
try
{
SPSecurity.RunWithElevatedPrivileges(delegate()
{
siteCollection = newSPSite(System.Configuration.ConfigurationManager.AppSettings["SPDocumentLibrary"].ToString());
topLevelSite = siteCollection.AllWebs[ConfigurationManager.AppSettings["TopLevelSite"].ToString()];
});
topLevelSite.AllowUnsafeUpdates = true;
SPList list = topLevelSite.Lists[ConfigurationManager.AppSettings["ListName"].ToString()];




// Create List Item
SPListItem objListItem = list.Items.Add();
objListItem["Title"] = objNewSSP.Title;
objListItem["SSP #"] = strRetSSPID.ToString();

string strUserName = Session["FullName"].ToString();
for (int i = 0; i 0)
{
objListItem["Estimated Completion Date"] = txtEstimateComplitionDate.Text;
}
objListItem["Request Date"] = DateTime.Today.ToShortDateString().ToString();
objListItem["Timing"] = txtTiming.Text;
objListItem["Cost"] = txtCost.Text;
objListItem["How Affect Product"] = txtHowAffectProduct.Text;





string strNList = string.Empty;
if (lstnotification.Items.Count > 0)
{

for (int i = 0; i < lstnotification.Items.Count; i++)
{

if(!string.IsNullOrEmpty(lstnotification.Items[i].ToString()))
{
strNList = lstnotification.Items[i].ToString() + ";";
}
}
objNewSSP.NotificationList = strNList.ToString();
objListItem["NotificationList"] = strNList;
}
objListItem.Update();
topLevelSite.AllowUnsafeUpdates = false;
UploadSSPFiles();
hdnDupTitle.Value = "Yes";
}





catch (Exception ex)
{
blnNoError = false;
lblMsg.Text = "Error " + ex.StackTrace.ToString() + " While Updating Sharepoint List";


// lblSuccessMsg.Text = "";
}
finally
{
if (blnNoError)
{
lblMsg.Text = "";

// lblSuccessMsg.Text = "Document has been reserved successfully";
txtComments.Enabled = false;
//btnSubmit.Enabled = false;
}
}
siteCollection.Dispose();
topLevelSite.Dispose();
if (blnNoError)
{

//Response.Redirect("Confirm.aspx?id=9&SSPID=" + strRetSSPID);
spnSSPID.InnerText = strRetSSPID.ToString();
ScriptManager.RegisterStartupScript(this, Page.GetType(), "","ShowDivLayer('shadow','divShowSSPID');", true);
}
}
http://www.infoitweb.com/Common/Articles.aspx?TypeID=11&ContentID=139