就这段程序,前部分是设置用户id的.后部分是把得到用户id的.可是cookies传值的时候总是 未将对象引用设置到对象的实例.
求高手解决
public void setUserID(string name)
{
string sql="select * from user_lable where user_Name='"+name+"'";


DataTable dt=this.ExeSqlDataTable(sql);

int id=int.Parse(dt.Rows[0]["userID"].ToString());
Response.Cookies["id"].Value=id.ToString();
}






public int getuserID()
{
if(Response.Cookies["UserID"]!=null)
{

return int.Parse(Response.Cookies["id"].Value.ToString());

}
else
{
return -1;
}

public HttpCookie (
string name
)
需要初始化

HttpCookie MyCookie = new HttpCookie("id");
DateTime now = DateTime.Now;

MyCookie.Value = now.ToString();
MyCookie.Expires = now.AddHours(1);

Response.Cookies.Add(MyCookie);