GridView2
1、镶套(在GridView里镶套BulletedList)
2、手工实现编辑、更新全部记录
private SqlDataReader read(string id)
{
SqlConnection mycon = new SqlConnection(ConfigurationManager.ConnectionStrings["pubconn"].ToString());
mycon.Open();
SqlCommand cmd = new SqlCommand("select title from titles where pub_id='" + id + "'", mycon);
return cmd.ExecuteReader(CommandBehavior.CloseConnection);
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
foreach (GridViewRow gvr in GridView1.Rows)
{
string id = gvr.Cells[0].Text;
BulletedList bl = (BulletedList)gvr.Cells[2].FindControl("bl1");
bl.DataSource = read(id);
bl.DataTextField = "title";
bl.DataBind();
}
}
重点:return cmd.ExecuteReader(CommandBehavior.CloseConnection); 关闭连接{
SqlConnection mycon = new SqlConnection(ConfigurationManager.ConnectionStrings["pubconn"].ToString());
mycon.Open();
SqlCommand cmd = new SqlCommand("select title from titles where pub_id='" + id + "'", mycon);
return cmd.ExecuteReader(CommandBehavior.CloseConnection);
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
foreach (GridViewRow gvr in GridView1.Rows)
{
string id = gvr.Cells[0].Text;
BulletedList bl = (BulletedList)gvr.Cells[2].FindControl("bl1");
bl.DataSource = read(id);
bl.DataTextField = "title";
bl.DataBind();
}
}
2、手工实现编辑、更新全部记录
protected void Button1_Click(object sender, EventArgs e)
{
GridView1.Columns[1].Visible = false;
GridView1.Columns[2].Visible = true;
}
protected void Button2_Click(object sender, EventArgs e)
{
for (int i = 0; i < GridView1.Rows.Count; i++)
{
string id = GridView1.Rows[i].Cells[0].Text;
string name = ((TextBox)GridView1.Rows[i].Cells[2].FindControl("textbox1")).Text;
SqlConnection mycon = new SqlConnection(ConfigurationManager.ConnectionStrings["mydbcon"].ToString());
mycon.Open();
SqlCommand cmd = new SqlCommand("update test set 姓名='" + name + "' where 学号='" + id + "'",mycon);
cmd.ExecuteNonQuery();
}
GridView1.Columns[1].Visible = true;
GridView1.Columns[2].Visible = false;
{
GridView1.Columns[1].Visible = false;
GridView1.Columns[2].Visible = true;
}
protected void Button2_Click(object sender, EventArgs e)
{
for (int i = 0; i < GridView1.Rows.Count; i++)
{
string id = GridView1.Rows[i].Cells[0].Text;
string name = ((TextBox)GridView1.Rows[i].Cells[2].FindControl("textbox1")).Text;
SqlConnection mycon = new SqlConnection(ConfigurationManager.ConnectionStrings["mydbcon"].ToString());
mycon.Open();
SqlCommand cmd = new SqlCommand("update test set 姓名='" + name + "' where 学号='" + id + "'",mycon);
cmd.ExecuteNonQuery();
}
GridView1.Columns[1].Visible = true;
GridView1.Columns[2].Visible = false;