Guide me in my coding I asked this question earlier

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C#

Hello Sir,

I am using Membership in my page well when I call the textbox Id in the below function, The page never reconize the id.

my view: I have to find Control to passId of textbox in function
txtuserName and txtPassword both declared in Membership Template fields(Anonymous Template field)

Please help in Membership....

protected void btnLogin_Click(object sender, EventArgs e)
{
    if (validData())
    {
        login();
    }
}

private void login()
{ 
    DataTable dtuser=new DataTable();
    try
    {
        dtuser = Login.GetLoginUserDetail(txtUserName.Text.Trim(),txtPassword.Text.Trim());
    }
    catch
    {
        
    }
        
    if (dtuser.Rows.Count>0)
    {
        string usertype = dtuser.Rows[0]["UserType"].ToString();
        if (usertype=="TL") // For TL
        {
            Session["USERID"] = dtuser.Rows[0]["UserID"].ToString();
            Session["USERTYPE"] = dtuser.Rows[0]["UserType"].ToString();
            Session["USERLOGINNAME"] = dtuser.Rows[0]["employeename"].ToString();
            Session["EMPLOYEEID"] = dtuser.Rows[0]["empid"].ToString();
            Response.Redirect("~/TL/frmTLHome.aspx");
               
        }
    }
    else
    {
        Messagebox1.Show("Invalid Username or Password!");
    }
}