WinForm的 DataGridView 绑定了数据源，数据不显示怎么办

Posted 2023-03-15

给名叫 CCS_info 的 DataGridView 绑定了数据源，8个列的DataProperName也设定好了，数据就是显示不出来

this.CCS_info.AutoGenerateColumns = false;
string queryStr = "SELECT c_num, c_name, type, credit, term, c_time, c_room, t_name FROM CC_info where s_num='" + sno + "'";
con = new SqlConnection(conStr);
cmd = new SqlCommand(queryStr, con);
con.Open();
SqlDataReader dr = cmd.ExecuteReader();
BindingSource bs = new BindingSource();
bs.DataSource = dr;
this.CCS_info.DataSource = bs;
con.Close();

参考技术A SqlDataReader dr = cmd.ExecuteReader();
BindingSource bs = new BindingSource();
bs.DataSource = dr;
this.CCS_info.DataSource = bs;
改成
sqldataadapter da =new sqldataadapter(queryStr, con);
datatable dt=new datatable();
da.fill(dt);
this.CCS_info.DataSource = dt; 参考技术B 还缺少一个绑定事件吧？
this.CCS_info.datebind() 参考技术C 试试绑定到DataTable看看 ？本回答被提问者采纳