dataColChanged事件
If e.DataCol.name = "金额" Then
If e.DataRow.IsNull("日期") = False AndAlso e.DataRow.IsNull("欠款人") = False Then
Dim fdr As DataRow = DataTables("车" & e.DataRow("欠款人")).Find("日期 = #" & e.DataRow("日期") & "#")
If fdr Is Nothing Then
fdr = DataTables("车" & e.DataRow("欠款人")).addnew
fdr("日期") = e.DataRow("日期")
fdr("车号") = e.DataRow("欠款人")
End If
fdr("支款") = e.DataRow("金额")
End If
End If