我編寫了評論頁面。它的工作正常,但所有SELECTED
記錄正在使用Response.Write(dr[0].ToString());
顯示,但使用Response.Write
我們不能有序地管理它們。所以,我決定在Labels
顯示記錄,但我不想使用分頁。因此,現在要在每次更新記錄時自動添加新的Set
,Labels
(即set
是一組標籤名稱,電子郵件,網站和評論)?生成無限制標籤
我也嘗試使用Labels
而不是Response.Write
,但在標籤中只顯示最後一條記錄。
請告訴我如何顯示每組記錄中的每個記錄labels
。
我的代碼如下。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Odbc;
public partial class comment : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string MyConString = "DRIVER={MySQL ODBC 3.51 Driver};" + "SERVER=localhost;" + "DATABASE=test_com;" + "UID=root;" + "PASSWORD=*****;" + "OPTION=3";
OdbcConnection MyConnection = new OdbcConnection(MyConString);
MyConnection.Open();
OdbcCommand cmd = new OdbcCommand("Select name, email, website, comments from awm_comments", MyConnection);
OdbcDataReader dr = cmd.ExecuteReader();
if (dr.HasRows == false)
{
throw new Exception();
}
while (dr.Read())
{
Response.Write(dr[0].ToString());
Response.Write(dr[1].ToString());
Response.Write(dr[2].ToString());
Response.Write(dr[3].ToString());
/* test using labels. Being displayed only last record.
Label1.Text = dr[0].ToString();
Label2.Text = dr[1].ToString();
Label3.Text = dr[2].ToString();
Label4.Text = dr[3].ToString();
*/
}
}
protected void Submit_Click(object sender, EventArgs e)
{
string name = tb_name.Text;
string email = tb_email.Text;
string website = tb_website.Text;
string comment = tb_comment.Text;
string MyConString = "DRIVER={MySQL ODBC 3.51 Driver};" + "SERVER=localhost;" + "DATABASE=test_com;" + "UID=root;" + "PASSWORD=******;" + "OPTION=3";
OdbcConnection MyConnection = new OdbcConnection(MyConString);
OdbcCommand cmd = new OdbcCommand("INSERT INTO awm_comments(name, email, website, comments, notify)VALUES(?, ?, ?, ?, ?)", MyConnection);
cmd.Parameters.Add("@email", OdbcType.VarChar, 255).Value = name;
cmd.Parameters.Add("@alternate_email", OdbcType.VarChar, 255).Value = email;
cmd.Parameters.Add("@ipaddr", OdbcType.VarChar, 255).Value = website;
cmd.Parameters.Add("@security_question", OdbcType.VarChar, 255).Value = comment;
if (cb_notify.Checked == true)
{
int not = 1;
cmd.Parameters.Add("@security_question", OdbcType.Int, 11).Value = not;
}
else if (cb_notify.Checked == false)
{
int not = 0;
cmd.Parameters.Add("@security_question", OdbcType.Int, 11).Value = not;
}
MyConnection.Open();
cmd.ExecuteNonQuery();
MyConnection.Close();
}
}
太棒了。這工作正常,但第一個標籤的所有記錄按順序顯示,然後是第二個。我需要以SET方式。 – Mal