如何在会话中获取dropdownlist选择的值 [英] How to get dropdownlist selected value in session

问题描述

在会话中为ddl选择值分配后，只是为了确保在运行模式下立即窗口中检查的会话值

但它没有花费ddl vale

session [ id]

当前上下文中不存在名称session

  protected   void  btnsaveProduct_Click（ object  sender，EventArgs e）
 {
 
 尝试 
 {
 
 
 con.Open（）; 
 Label1.Text = DropDownList1.SelectedValue; 
会话[  id] = DropDownList1.SelectedValue; 
 SqlCommand cmd =  new  SqlCommand（  rsa_products_sp_ProductTable ，con）; 
 cmd.CommandType = CommandType.StoredProcedure; 
 cmd.Parameters.AddWithValue（  @ Productname，txtProductName.Text）; 
 cmd.Parameters.AddWithValue（  @ ProductShortDescription，txtShortDescription.Text）; 
 cmd.Parameters.AddWithValue（  @ Productdescription，txtProductDescription.Text）; 
 cmd.Parameters.AddWithValue（  @ Price，txtPrice.Text）; 
 cmd.Parameters.AddWithValue（  @ MenuId，DropDownList1.SelectedItem.Value）; >  
请帮助我解决此。

解决方案

Ryan 是正确的。代码似乎很好。但是在即时窗口中，您正在检查 session [id] 而不是 Session [id] 。

After assigning ddl selected value in session for just to make sure checked session value in immediate window in run mode
But it didn't take ddl vale
session["id"]
The name 'session' does not exist in the current context

protected void btnsaveProduct_Click(object sender, EventArgs e)
    {

                  try
     {


con.Open();
       Label1.Text = DropDownList1.SelectedValue;
       Session["id"] = DropDownList1.SelectedValue;
        SqlCommand cmd = new SqlCommand("rsa_products_sp_ProductTable", con);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@Productname", txtProductName.Text);
        cmd.Parameters.AddWithValue("@ProductShortDescription", txtShortDescription.Text);
        cmd.Parameters.AddWithValue("@Productdescription", txtProductDescription.Text);
        cmd.Parameters.AddWithValue("@Price", txtPrice.Text);
        cmd.Parameters.AddWithValue("@MenuId", DropDownList1.SelectedItem.Value);>
     Please Help me with this.

解决方案

Ryan is correct. The code seems good. But in immediate window, you are checking session["id"] instead of Session["id"].

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