Sunday, 8 July 2018

Introduction to Linq query in C#



using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;



namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            List<student> li = new List<student>()

          {



            new student() { studentID = 1, studentName = "John", Age = 18 },

            new student() { studentID = 2, studentName = "Steve",  Age = 21 },

            new student() { studentID = 3, studentName = "Bill",  Age = 25 },

            new student() { studentID = 4, studentName = "Ram" , Age = 20 },

            new student() { studentID = 5, studentName = "Ron" , Age = 31 },

            new student() { studentID = 6, studentName = "Chris",  Age = 17 },

            new student() { studentID = 7, studentName = "Rob",Age = 19  },

        };





            List<student> teenagerlist = li.Where(x => x.Age > 12 && x.Age < 20).ToList();

            Console.WriteLine("Teenager students: ");

            foreach (student item in teenagerlist)

            {

                Console.WriteLine("Name: "+item.studentName);

            }





        }

    }

}

----------------------------------------------------------------------------------------------------------------
class student
    {
        public int studentID { get; set; }
        public string studentName { get; set; }
        public int Age { get; set; }
    }

Friday, 6 July 2018

HR Management system ASP.NET C# PART-1









click here to download the source code

insert data using Entity Framewrok database 1st Approach in windows from





using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using WindowsFormsApplication9.Model;



namespace WindowsFormsApplication9

{

    public partial class Form1 : Form

    {

        db1708c1Entities db = new db1708c1Entities();

        tbl_student s = new tbl_student();

        public Form1()

        {

            InitializeComponent();

        }



        private void button2_Click(object sender, EventArgs e)

        {

           

            s.name = textBox1.Text;

            s.dob = dateTimePicker1.Value;

            s.contatct = textBox2.Text;

            if (s.C_image==null)

            {

                s.C_image = @"C:\images\unknown.png";

            }

            db.tbl_student.Add(s);

            db.SaveChanges();

            MessageBox.Show("Data successfully inserted......");

            dataGridView1.DataSource = db.tbl_student.ToList();

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            dataGridView1.DataSource = db.tbl_student.ToList();

        }



        private void button1_Click(object sender, EventArgs e)

        {

            OpenFileDialog op = new OpenFileDialog();

            op.Filter = "Image Files(*.jpg; *.jpeg; *.gif; *.bmp)|*.jpg; *.jpeg; *.gif; *.bmp";

            if (op.ShowDialog() == DialogResult.OK)

            {

                pictureBox1.Image = new Bitmap(op.FileName);

                pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;

                s.C_image = op.FileName;

               

            }

        }

    }

}


How to delete data from sql server using Windwos form c#



Click here to download the source code

Sunday, 1 July 2018

How to Make search Filter in Visual C# WINDOWS FORM





click here to download the source code

How to Upload image in PHP







<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title>File Upload</title>

</head>



<body>



<form method="post" enctype="multipart/form-data">

<table> <tr> <td><input type="file" name="image"/> </td> <td> <button name="btn">Upload  </button> </td> </tr> </table>

</form>



<?php

if(isset($_POST['btn']))

{

if(isset($_FILES['image']))

{



//FILENAME ,FILESIZE, FILETYPE,FILEEXTENSION...........



  //-------------------------------------------------------------------------------

 

      $errors;

//  $file_name=$file_size=$file_type="";

      $file_name = $_FILES['image']['name'];

      $file_size =$_FILES['image']['size'];

      $file_tmp =$_FILES['image']['tmp_name'];

      $file_type=$_FILES['image']['type'];

      $file_ext=strtolower(end(explode('.',$_FILES['image']['name'])));

  //-------------------------------------------------------------------------------

  $extensions= array("jpeg","jpg","png");

 

   if(in_array($file_ext,$extensions)=== false)  // values are equal so return true

  {

         $errors="extension not allowed, please choose a JPEG or PNG file.";

      }

  else

  {

     if($file_size > 2097152)

     {

       $errors='File size must be excately 2 MB or lesser...';

     }

else

{

$rand=rand();

move_uploaded_file($file_tmp,"uploads/".$rand.$file_name);

}

 

 }





 if(empty($errors))

 {

echo "<p style='color:green'> File Uploaded...</p>";

 }

 else

{

echo "<p style='color:red'> File not Uploaded...</p>";



}







 



}//IF FILE CONTAINS.................



else

{

echo "<p style='color:red'> plz select a FILE.....</p>";

}



}







?>



</body>

</html>

Pass Dynamically Added Html Table Records List To Controller In Asp.net MVC

Controller Code: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using ...