vb.net – 检查DataTable是否有行的有效方法
发布时间:2020-12-17 00:14:01 所属栏目:大数据 来源:网络整理
导读: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 lb
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:
If 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 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |