Hide or show label based on seach.

Hi, on my asp.net page I have a search box, a label and a database connection.

I am trying to show or hide the label depending on the data inputted into the search box.
For example if a user enters ID number 3452 into the search box and it is not in the database the label should be visible, however if it is a valid ID within the database the label should be hidden.

I have the following code in my system however the label is showing even if the ID entered is in the database is valid.

if (TextBox50.Text != "CCARNo")
        {
            Label5.Visible = true;
        }
        else
        {
            Label5.Visible = false;
        }
Does anyone know what I must do to get the code working as expected?
Thank you for your help.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Show_label_based_on_seach._Default" %>

    Untitled Page



using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
namespace Show_label_based_on_seach
{
    public partial class _Default : System.Web.UI.Page
    {
        string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
        SqlCommand com;
        string str;
        protected void Button1_Click(object sender, EventArgs e)
        {
            SqlConnection con = new SqlConnection(connStr);
            con.Open();
            str = "select count(*)from test where id='" + txtId.Text + "'";
            com = new SqlCommand(str, con);
            int count = Convert.ToInt32(com.ExecuteScalar());
            if (count > 0)
            {
                Label1.Visible = false;
            }
            else
            {
                Label1.Visible = true;
            }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            Label1.Visible = false;
        }
    }
}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Satyapriya Nayak13y ago
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Show_label_based_on_seach._Default" %>

    Untitled Page














using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
namespace Show_label_based_on_seach
{
    public partial class _Default : System.Web.UI.Page
    {
        string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
        SqlCommand com;
        string str;
        protected void Button1_Click(object sender, EventArgs e)
        {
            SqlConnection con = new SqlConnection(connStr);
            con.Open();
            str = "select count(*)from test where id='" + txtId.Text + "'";
            com = new SqlCommand(str, con);
            int count = Convert.ToInt32(com.ExecuteScalar());
            if (count > 0)
            {
                Label1.Visible = false;
            }
            else
            {
                Label1.Visible = true;
            }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            Label1.Visible = false;
        }
    }
}
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