vb.net – rows.add和importRow之间的区别
发布时间:2020-12-17 00:18:52 所属栏目:大数据 来源:网络整理
导读:在vb.net中向数据表添加行时,rows.add和importRow之间有什么区别? Dim dt As DataTableDim dr As DataRow'Add row this way...dt.rows.add(dr)'or this way.dt.importRow(dr) 两者都做相同的功能添加行到datatable但主要区别是 DataTable dt1=new DataTable
在vb.net中向数据表添加行时,rows.add和importRow之间有什么区别?
Dim dt As DataTable Dim dr As DataRow 'Add row this way... dt.rows.add(dr) 'or this way. dt.importRow(dr)
两者都做相同的功能添加行到datatable但主要区别是
DataTable dt1=new DataTable(); DataRow dr1=dt1.NewRow(); DataTable dt2=new DataTable(); dt2.Rows.Add(dr1); // will give you error already dr1 belongs to another datatable in that //case you can do like this dt2.ImportRow(dr1); // safe dt1.Rows.Add(dr1); // safe as dr1 Row belongs to DataTable1 so no exception raise 希望能给你一个想法.. (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! |