Question

I need to save the user name in a sql table, example: an user
put it’s user name and password in the login, then, in other form must
send some data in textboxes to another user, how can I save the username?
I’m working in a website with visual studio 2008, c sharp and sql server 2005, thanks
in advance.

this is my code in login and I have to pass the user name to the 2nd form

protected void btnLogin_Click(object sender, EventArgs e)

{
    ClPersona login = new ClPersona();
    bool isAuthenticated = login.sqlLogin1((txtUsuario.Text), (txtPassword.Text));
    if (isAuthenticated)
    {
        //prueba para sesion
        Session["sesionicontrol"] = login.NombreUsuario;
        Response.Redirect("../MENU/menu1.aspx");
    }

Answer 1

Drop a label on your target form like this:

<asp:label ID="Label1" runat="server" text="Label"></asp:label>    

Go to code behind of the target page find method Page_Load and add following code:

    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = (string) Session["sesionicontrol"];
    }

This will read the value of login.NombreUsuario hich was saved previously into Session["sesionicontrol"] and display it in label.

Assuptions I made are that:

1. login.NombreUsuario – contains the data you are reffering as user name – and that’s what you want to pass along.
2. it is of type string.

---

Generally Session privides a dictionary to save any named objects. They are shared between all pages inside current session. You can use session to pass some data across pages like this:

WebForm1.aspx

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />

WebForm1.aspx.cs

    protected void Button1_Click(object sender, EventArgs e)
    {
        Session["SomeKey"] = TextBox1.Text;
        Response.Redirect("WebForm2.aspx"); 
    }

This saves the value you have just entered in TextBox into session.

WebForm2.aspx

<asp:label ID="Label1" runat="server" text="Label"></asp:label>    

WebForm2.sapx.cs

public partial class WebForm2 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = (string) Session["someKey"];
    }
}

This fetches the values you have stored in previous page uner key SomeKey and sets it to Label before the page gets rendered. You see the text you have entered on the forst page.