我想我需要在此按钮单击事件中编写代码以获得所需的输出,但无法写下步骤。你们的任何帮助都会有所帮助,并使我学习。谢谢你。
private void btnViewAllEntries_Click(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(Helper.ConnectionString);
SqlCommand cmd = new SqlCommand("Select * from DirDetails");
con.Open();
con.Close();
MessageBox.Show(DetailsView.cs);//DetailsView.cs is winform with gridview
}