我有一个搜索关键字然后返回DataTable的函数.我想检查里面是否有行,因为有时候找不到查询.
'which one shoud I use ?
If dtDataTable Is Nothing Then
'some code
lbl_count.Text = "Found 0 result"
End If
If dtDataTable.Rows.Count > 0 Then
'some code
lbl_count.Text = "Found " & dtDataTable.Rows.Count.ToString & " results"
End If
谢谢.
怎么样：
原文链接：https://www.f2er.com/vb/255593.htmlIf dtDataTable IsNot Nothing AndAlso dtDataTable.Rows.Count > 0 Then
'some code
lbl_count.Text = "Found " & dtDataTable.Rows.Count.ToString & " results"
Else
'some code
lbl_count.Text = "Found 0 result"
End If