Error covert string to int

Hi Arvind,


Try this..


Create table employee (empid varchar(50),empname varchar(50),sal int)


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





   


   

   

   
   

   
   

   
   

   

   
            Text="Insert Data" />

   
  
 
   






using System;
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;
public partial class _Default : System.Web.UI.Page
{
    string strConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
    string str;
    SqlCommand com;
    int count;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            autogenerated();
          
        }
    }

    void autogenerated()
    {
        SqlConnection con = new SqlConnection(strConnString);
        str = "select count(*) from employee";
        com = new SqlCommand(str, con);
        con.Open();
        count = Convert.ToInt16(com.ExecuteScalar()) + 1;
        txt_empid.Text = count.ToString();
        txt_empid.Enabled = false;
        con.Close();
    }
    protected void btn_insert_Click(object sender, EventArgs e)
    {
        SqlConnection con = new SqlConnection(strConnString);
        con.Open();
        str = "insert into employee values('" + txt_empid.Text.Trim() + "','" + txt_empname.Text.Trim() + "'," + txt_sal.Text.Trim() + ")";
        com = new SqlCommand(str, con);
        com.ExecuteNonQuery();
        con.Close();
        Label4.Text = "Records successfully Inserted";
        txt_empname.Text = "";
        txt_sal.Text = "";
        autogenerated();
    }
}



Thanks
If this post helps you mark it as answer

Hi,
Try beloow line of code

Int32 a = Convert.ToInt32(textBox1.Text);

hi Arvind,

ur question is not clear for me.

u want to display identity value after saving the data in sql. am i correct?

If yes then,
use datareader or adapter to fetch the record.