简单语法错误空检查数据表/gridview asp.net vb
我有这个代码:
Dim Result As New DataTable
DataAdapter.Fill(Result)
'bind data to visible surname/name grid
If Result.Rows.Count = 0 Then
NoInputBottom.Text = "No Results. Please widen your search criteria and try again"
NoInputTop.Text = "No Results. Please widen your search criteria and try again"
Else
GV.DataSource = Result
GV.DataBind()
End If
我还尝试将检查移动到网格视图,如下所示:
If GV.Columns.Count = 0 Then
NoInputBottom.Text = "No Options Selected: Please select your search criteria and try again"
NoInputTop.Text = "No Options Selected: Please select your search criteria and try again"
End If
当我运行代码时。 noinput 标签没有值,空检查似乎失败了?如果搜索没有返回结果,请告诉我如何显示消息。
I have this code:
Dim Result As New DataTable
DataAdapter.Fill(Result)
'bind data to visible surname/name grid
If Result.Rows.Count = 0 Then
NoInputBottom.Text = "No Results. Please widen your search criteria and try again"
NoInputTop.Text = "No Results. Please widen your search criteria and try again"
Else
GV.DataSource = Result
GV.DataBind()
End If
I have also tried moving the check to the gridview like so:
If GV.Columns.Count = 0 Then
NoInputBottom.Text = "No Options Selected: Please select your search criteria and try again"
NoInputTop.Text = "No Options Selected: Please select your search criteria and try again"
End If
When I run the code. the noinput labels do not have value, the null check seems to be failing? Please can you tell me how to display a message if the search returned no reults.
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这是我对原始问题的评论的副本,以便能够将问题标记为已回答(谢谢菲尔)。
This is a copy of my comment to the original question in order to be able to mark the question as answered (thank you Phil).