I am getting "System.InvalidOperationException: Operation is not valid due to the current state of the object.
" when it tries to execute the if (oDR["CountPO"] == null) line of code.
Any ideas? Thanks.
for (int i = 0; i < dt2.Rows.Count; i++)
{
string contract = dt2.Rows[i][0].ToString();
{
& ...
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