If e.DataCol.name = "产品"
If e.DataRow("产品") > ""
Dim fdr As DataRow = DataTables("表A").find("[产品] = '" & e.DataRow("产品") & "' and [单价2] > 0", "_Identify desc")
If fdr IsNot Nothing Then
e.DataRow("单价1") = fdr("单价2")
End If