admin/UpdateLink.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.IO;
public partial class admin_UpdateLink : System.Web.UI.Page
{
  SqlHelper data = new SqlHelper();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            int nResult = -1;
            if (Request.Params["id"] != null)
            {
                if (Int32.TryParse(Request.Params["id"].ToString(), out nResult) == false) { return; }
                SqlDataReader dr = Getnhuodong(nResult);
                if (dr.Read())
                {
                    title.Text = dr["name"].ToString();
                    TextBox2.Text = dr["Username"].ToString();
                    TextBox1.Text = dr["Url"].ToString();

                }
            }

        }
    }
    public SqlDataReader Getnhuodong(int nID)
    {
        SqlConnection myConnection = new SqlConnection(SqlHelper.connstring);
        string cmdText = "SELECT * FROM Link WHERE id=" + nID;
        SqlCommand myCommand = new SqlCommand(cmdText, myConnection);
        SqlDataReader dr = null;
        try
        {
            myConnection.Open();
            dr = myCommand.ExecuteReader(CommandBehavior.CloseConnection);
        }
        catch (SqlException ex)
        {
            throw new Exception(ex.Message, ex);
        }
        return dr;
    }
    //保存信息
    private void Updatehuodong(string sTitle, string sContent,string SUsername, int nNewsID)
    {

        SqlConnection myConnection = new SqlConnection(SqlHelper.connstring);

        string cmdText = "";