关于ID获得问题

Question

当然是用Request.QueryString了。
        if (Request.QueryString["id"] != null)
        {
            string Id = Request.QueryString["Id"].ToString();
        }

Answer 1

用Session传值
前一个页面内.cs中,Session["ID"] = ?;
x.aspx.cs中, string id = Session["ID"].ToString();
最好先在globle配制文件中声明Session["ID"]并赋null

Answer 2

用 Request了
if(!string.IsNullOrEmpty(Request["id"]))
{
   string   Id   =   Request["Id"]; 
}

Answer 3

用Request.QueryString就可以了,不用session

Answer 4

我把 x.aspx.cs中写下如下代码，调用
        string strConnection = "server=local;uid=sa;pwd=sa;database=dbname";
        SqlConnection objConnection = new SqlConnection(strConnection);
        objConnection.Open();
        SqlCommand cmd = new SqlCommand("SELECT * FROM class where classID=Request.QueryString['Id']", objConnection);
        SqlDataReader dr = cmd.ExecuteReader();
        string strBody1 = null;
        string strBody2 = null;
        dr.Read()
        strBody1 += "" + dr["name"] + "";
        strBody1 += "" + dr["show"] + "";
        dr.Close();
        objConnection.Close();
        return strBody;请问这样写对吗？
如果我要在aspx文件中分别显示出name和show，改怎么办呢？谢谢

Answer 5

 private string id = null;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            id = Request.QueryString["id"];
            Response.Write(id);
        }
    }

Answer 6

public string GetStrBody()
{
string   strConnection   =   "server=local;uid=sa;pwd=sa;database=dbname"; 
                SqlConnection   objConnection   =   new   SqlConnection(strConnection); 
                objConnection.Open(); 
                SqlCommand   cmd   =   new   SqlCommand("SELECT   *   FROM   class   where   classID=Request.QueryString['Id']",   objConnection); 
                SqlDataReader   dr   =   cmd.ExecuteReader(); 
                string   strBody1   =   null; 
                string   strBody2   =   null; 
                dr.Read() 
                strBody1   +=   ""   +   dr["name"]   +   ""; 
                strBody1   +=   ""   +   dr["show"]   +   ""; 
                dr.Close(); 
                objConnection.Close(); 
                return   strBody; 
}protected   void   Page_Load(object   sender,   EventArgs   e) 
{ 
                if   (!IsPostBack) 
                { 
                        string strBody=GetStrBody();
                        string[] arry = strBody.split('');
                        string name = arry[0];
                        string show = arry[1]; 
this.TextBox1.Text = name;
this.TextBox2.Text = show;                } 
}

Answer 7

aspx.cs文件public partial class _1 : System.Web.UI.Page
{
    public string GetStrBody()
      {
                //链接数据库并打开读取
                string   strBody1   =   null; 
                string   strBody2   =   null; 
                dr.Read() 
                strBody1   +=   ""   +   dr["title"]   +   ""; 
                strBody1   +=   ""   +   dr["content"]   +   ""; 
                dr.Close(); 
                objConnection.Close(); 
                return   strBody; 
     }
    protected void Page_Load(object sender, EventArgs e)
    {
        if   (!IsPostBack) 
                { 
                        string strBody=GetStrBody();
                        string[] arry = strBody.split('');
                        string name = arry[0];
                        string show = arry[1]; 
                        this.TextBox1.Text = name;
                        this.TextBox2.Text = show;                } 
    }}aspx文件    <form runat="server">
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
    </form>我运行了，一直提示“ 编译器错误信息: CS1011: Empty character literal”错误，在 string[] arry = strBody.split(''); 这一行，请问改怎么解决呢？