Select Case e.DataCol.Name Case "外径","内径","高度" Dim dr As DataRow = e.DataRow Dim str As String = "" If dr.IsNull("外径") = False Then str &= "×OD" & dr("外径") End If If dr.IsNull("内径") = False Then str &= "×ID" & dr("内径") End If If dr.IsNull("高度") = False Then str &= "×THK" & dr("高度") End If e.DataRow("参数合并") = str.Trim("×") End Select