-1

我有以下方法用于搜索数据库中的字段

此方法返回数据并在我的笔记本电脑本地计算机上正常工作，但当我将项目上传到服务器时，该方法不起作用并返回空数据。

注意：我的本地笔记本电脑 2008 上的 sqlserver 但在服务器 2012 上

这是方法

        //this method for search
    protected void fillGridView(int followingID, string text)
    {

        SqlCommand myCommand = new SqlCommand("select t.*,u.firstName,u.lastName,u2.firstName as afirstName,u2.lastName as alastName ,i.icon,ii.iconPath as taskIcon, iii.iconPath as seenIcon,f.fileName,f.fileID from tasks as t inner join users as u on u.userID=t.addedBy inner join users as u2 on u2.userID=t.attachTo inner join priorityIcons as i on t.priority=i.priorityID inner join icons as ii on t.status=ii.iconName inner join icons as iii on t.isNew=iii.iconName left join files as f on t.fileID=f.fileID where t.followingID=@followingID and t.description LIKE '%" + text + "%' or t.followingID=@followingID and t.title LIKE '%" + text + "%'");

        myCommand.Parameters.AddWithValue("@followingID", followingID);
        myCommand.Parameters.AddWithValue("@text", text);

        SqlConnection con = new SqlConnection();
        con.ConnectionString = connection;

        myCommand.Connection = con;
        con.Open();            

        DataSet ds = new DataSet();
        SqlDataAdapter adapter = new SqlDataAdapter(myCommand);

        try
        {

            adapter.Fill(ds);

            tasksRepeater.DataSourceID = null;
            tasksRepeater.DataSource = ds.Tables[0];
            tasksRepeater.DataBind();
            tasksCounter();
        }
        catch (Exception ex)
        {
            DAO.exDao myEx = new DAO.exDao();
            myEx.insert(ex);
            Response.Redirect("./error.aspx");
            //success = false;
            //throw ex;
        }
    }
4

2 回答 2

0

嗨，用这个替换你的代码

无需编写 DBAccess db = new DBAccess();

        myCommand.Parameters.Add(new SqlParameter("@followingID", followingID));
        myCommand.Parameters.Add(new SqlParameter("@text", text));

和

        DataSet ds = new DataSet();
        SqlDataAdapter adapter = new SqlDataAdapter(myCommand);
        adapter .Fill(ds);
于 2013-11-02T07:56:40.400 回答
-1

我通过在我尝试查找的单词之前添加 N 个字符来解决问题

这是很好的工作方法

//this method for search
    protected void fillGridView(int followingID, string text)
    {

        SqlCommand myCommand = new SqlCommand("select t.*,u.firstName,u.lastName,u2.firstName as afirstName,u2.lastName as alastName ,i.icon,ii.iconPath as taskIcon, iii.iconPath as seenIcon,f.fileName,f.fileID from tasks as t inner join users as u on u.userID=t.addedBy inner join users as u2 on u2.userID=t.attachTo inner join priorityIcons as i on t.priority=i.priorityID inner join icons as ii on t.status=ii.iconName inner join icons as iii on t.isNew=iii.iconName left join files as f on t.fileID=f.fileID where t.followingID=@followingID and t.description LIKE N'%" + text + "%' or t.followingID=@followingID and t.title LIKE N'%" + text + "%'");

        myCommand.Parameters.AddWithValue("@followingID", followingID);
        myCommand.Parameters.AddWithValue("@text", text);

        SqlConnection con = new SqlConnection();
        con.ConnectionString = connection;

        myCommand.Connection = con;
        con.Open();            

        DataSet ds = new DataSet();
        SqlDataAdapter adapter = new SqlDataAdapter(myCommand);

        try
        {

            adapter.Fill(ds);

            tasksRepeater.DataSourceID = null;
            tasksRepeater.DataSource = ds.Tables[0];
            tasksRepeater.DataBind();
            tasksCounter();
        }
        catch (Exception ex)
        {
            DAO.exDao myEx = new DAO.exDao();
            myEx.insert(ex);
            Response.Redirect("./error.aspx");
            //success = false;
            //throw ex;
        }
    }
于 2013-11-02T12:16:50.430 回答