vb.net datagridview输入数据时如何判断重复
Dim YIQCNo As String
If DataGridView1.Rows.Count - 2 > 0 Then
For I = 0 To DataGridView1.Rows.Count - 1
If Not (DataGridView1.Item(2, I).Value) Is DBNull.Value Then
YIQCNo = Trim(DataGridView1.Item(2, I).Value) '取表已添加的值
If TextBox9.Text = YIQCNo Then '进行对比了
MsgBox(YIQCNo & "不能重复添加!")
Exit Sub
Else
End If
End If
Next
End If
这是我在论坛上找的,但是 If TextBox9.Text = YIQCNo Then '进行对比了
不知道怎么对比,不想用SQL判断,谢谢大家了,还有更好的办法吗