以下代码是在Datacolchanged事件中执行的。是哪里错了？为何总是总得不到库存不足的提示呢？
Dim po As String = e.DataRow("PO")
Dim ty As String = e.DataRow("material_type")
Dim name As String = e.DataRow("material_name")
Dim size As String = e.DataRow("material_size")
Dim color As String = e.DataRow("color")
Dim pdr As DataRow = DataTables("库存表").Find("PO = '" & po & "' And material_type = '" & ty & "' And material_name = '" & name & "' And material_size = '" & size & "' And material_color = '" & color & "'")
If e.DataCol.name = "quantity" And pdr Is Nothing Then
If pdr("stocking_qty") < e.NewValue Then
MessageBox.Show("库存不足")
End If
End If
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Post By：2012/9/18 9:28:00 [只看该作者]
