将Datagrid复制到Datatable [英] Copy Datagrid to Datatable

问题描述

如何将数据从datagrid复制到datatable.我需要从datagrid删除选定的行，为此，我正在尝试将数据从datagrid复制到datatable并从datatable删除选定的行并将数据表再次绑定到datagrid.但是我在if(dt.rows.count)行上收到对象引用错误.这可能是问题，还是有其他简便的方法来删除所选行.

How to copy data from datagrid to datatable. I need to delete the selected row from datagrid, for this i am trying to copy data from datagrid to datatable and deleting the selected row from datatable and bind the datatable again to datagrid. but i am getting the object reference error on the line if(dt.rows.count). what could be the problem or is there any other easy way to remove the selected row.

dt = (DataTable)Datagrid1.DataSource;

if (dt.Rows.Count > 0)
{
   dt.Rows[2].Delete();
}

推荐答案

在此

dt = (DataTable)Datagrid1.DataSource;

之后，实际上dt为null 这就是为什么您会收到此错误的原因.

Thats why you are getting this error.

签出以下链接.
http://social.msdn.microsoft.com/论坛/en-US/winformsdatacontrols/thread/73c01abf-8c79-4ac8-9391-c8700cb1c917 [

checkout the follwing link.
http://social.msdn.microsoft.com/forums/en-US/winformsdatacontrols/thread/73c01abf-8c79-4ac8-9391-c8700cb1c917[^]

Hope this may help.

请参阅此内容，可能会有所帮助
http://social.msdn.microsoft.com/论坛/en-US/csharpgeneral/thread/53983755-bcdd-4d35-b307-08b370e42f81 [

Refer this, might help
http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/53983755-bcdd-4d35-b307-08b370e42f81[^]

这篇关于将Datagrid复制到Datatable的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！