4) WPF Program to Insert Employee Details to Database

Step 1 :

Design of Mainwindow.xaml

Step 2 :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Data.SqlClient;


namespace WpfApplication2
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        string cs = "server=NAGABABU-PC;database=nagababu;uid=sa;pwd=abc";

        public MainWindow()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            SqlConnection con = new SqlConnection(cs);
            int eno = Convert.ToInt32(textBox1.Text);
            string ename = textBox2.Text;
            double sal = double.Parse(textBox3.Text);
            SqlCommand cmd = new SqlCommand("insert into emp values (@eno,@ename,@sal)", con);
            cmd.Parameters.AddWithValue("@eno", eno);
            cmd.Parameters.AddWithValue("@ename", ename);
            cmd.Parameters.AddWithValue("@sal", sal);
            con.Open();
            int i = cmd.ExecuteNonQuery();
            con.Close();
            if (i == 1)
            {
                label4.Content = "Record Inserted Successfully";
            }
            else
            {
                label4.Content = "Record Not Inserted";
            }

        }
    }
}

Output :

Database :