I'm using a grid containing around 10 columns, the first one is a checkbox and the column header is called "Tag PUs". A user will click 1 or more checkboxes and then hit a button called "Send Notification". It looks like it's doing a postback. That being said, whichever rows were checked are now off again. Do I have to use some sort of session variable? If so, how do I set it?

I was wanting to do a FOR loop like this (NOTE: "checker" is the variable that checks to see if the checkbox is ON or not.

for (int x = 0; x < Grid1.Items.Count; x++)
{
sEmailBody = "";
sEmailSubj = "";
bool checker = Convert.ToBoolean(Grid1.Items[x].Cells[0].Value);
if (checker == true)
{
sPickupNum = Grid1.Items[x].Cells["PickUpNo"].Value.ToString().Trim();
sCustOrdNum = Grid1.Items[x].Cells["CustOrdNum"].Value.ToString().Trim();
sPONum = Grid1.Items[x].Cells["PONum"].Value.ToString().Trim();
sDateReady = Grid1.Items[x].Cells["DateReady"].Value.ToString().Substring(0, 10).Trim();
sPUTime = Grid1.Items[x].Cells["Descrip"].Value.ToString().Trim();
sPickupLocn = Grid1.Items[x].Cells["PickupLocn"].Value.ToString().Trim();
sDelAgentLocn = Grid1.Items[x].Cells["DelAgentLocn"].Value.ToString().Trim();
sTotShipUnits = Grid1.Items[x].Cells["TotShipUnits"].Value.ToString().Trim();
sTotWeight = Grid1.Items[x].Cells["TotWeight"].Value.ToString().Trim();
sTotCubes = Grid1.Items[x].Cells["TotCubes"].Value.ToString().Trim();
sCreatedOn = Grid1.Items[x].Cells["CreatedOn"].Value.ToString().Substring(0, 10).Trim();
sComments = Grid1.Items[x].Cells["Comments"].Value.ToString().Trim();

sEmailSubj = "Please schedule pickup# " + sPickupNum + " at " + sPickupLocn;

sEmailBody += currentuser + " has asked for you to please schedule the following pickup: " + "\n\n";
sEmailBody += "Pickup#: " + sPickupNum + "\r\n";
sEmailBody += "Pickup At: " + sPickupLocn + "\r\n";
sEmailBody += "Delivering To: " + sDelAgentLocn + "\r\n";
sEmailBody += "V.T.#: " + sCustOrdNum + "\r\n";
sEmailBody += "P.O.#: " + sPONum + "\r\n";
sEmailBody += "Date Ready: " + sDateReady + "\r\n";
sEmailBody += "Est. Pickup Time: " + sPUTime + "\r\n";
sEmailBody += "Total Shipping Units: " + sTotShipUnits + " / Total Weight: " + sTotWeight + " / Total Cubes: " + sTotCubes + "\r\n";
sEmailBody += "Assigned By: " + currentuser + "\r\n";

emaildt = new DateTime();
sPUStat = "ASSIGNED";
nvcEmail.CreateEmail(sSmtpServer, sMailFrom, sMailTo, sEmailSubj, sEmailBody);

ExelWebMisc.InsertPickupWIP(sConnectionString, sPickupNum, sPUStat, emailalias, sMailTo, emaildt, sComments, currentuser);
}

That fixed it. I was reloading the grid regardless of whether it was or wasn't a postback. I moved that line of code so that it only does it IF (!Page.IsPostBack) and it worked. Thanks for your help!