按你的操作没发现有你这样的问题.
SqlConnection con=new SqlConnection(@"server=yio;uid=sa;pwd=;database=northwind");
SqlDataAdapter da=new SqlDataAdapter("select * from Employees",con);
DataTable dt=new DataTable();
DataColumn dc=new DataColumn("MyTest");
dt.Columns.Add("MyTest");
da.Fill(dt);
dataGrid1.DataSource=dt
SqlConnection con=new SqlConnection(@"server=yio;uid=sa;pwd=;database=northwind");
SqlDataAdapter da=new SqlDataAdapter("select * from Employees",con);
DataTable dt=new DataTable();
DataColumn dc=new DataColumn("MyTest");
dt.Columns.Add("MyTest");
da.Fill(dt);
dataGrid1.DataSource=dt
解决方案 »
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