scvagadiya.files.wordpress.com … · web viewcreate a program to demonstrate the use of...

Advance .Net Technology (170707)

Practical:-3

Aim: - Create a Program to demonstrate the Use of Inheritance in VB.NET

Program:

Module Module1

Public Class class1

Public Sub print()

Console.WriteLine("Base class") Console.WriteLine("print") Console.WriteLine("*********************") End Sub

End Class

Public Class class2 Inherits class1

Public Sub display() Console.WriteLine("--------------------------") Console.WriteLine("Child class") Console.WriteLine("display") End Sub

End Class

Sub Main() Console.WriteLine("Inheritance in vb.net") Dim o As New class1() o.print() Dim c As New class2 c.print() c.display() Console.ReadLine()

End Sub

End Module

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Output:-

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Practical:-4

Aim: - Write a Program for Constructor and Destructor using VB.NET.

Program

Imports System.ConsoleModule Module1

Sub Main() Dim con As New Constructor(20) WriteLine("Constructor return age which is....:") WriteLine(con.ShowAge()) 'storing a value in the constructor by passing a value(20) and calling it with the ShowAge method Dim obj As New Destroy() Read()

End Sub

End Module

Public Class Constructor Public Age As Integer

Public Sub New(ByVal x As Integer) 'constructor Age = x 'storing the value of Age in constructor End Sub

Public Function ShowAge() As Integer Return Age 'returning the stored value End Function

End ClassPublic Class Destroy

Protected Overrides Sub Finalize() 'creating a Destrustor Write("VB.NET") Read() End SubEnd Class

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Output:-

Practical:-5

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Aim: -Create Application using VB.Net Use the following Controls: Forms Property Text Box Button Message Box Tooltips Events Tab Order

Program

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If TextBox1.Text = "ABC" And TextBox2.Text = "123" Then MsgBox("Succesfully Login") Else MsgBox("Login Fail") End If End SubEnd Class

Output:-

Practical:-6

VIMAT/BE/CE/120940107018


Aim: - Create Application using VB.Net Use the following Controls:

a. List Boxb. Combo Boxc. Check Boxd. Option Buttone. Menu

Program

Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim dept As String dept = ListBox1.SelectedItem Label6.Text = "Selected department is.." + dept

Dim clg As String clg = ComboBox1.SelectedItem Label7.Text = "Selected collage is.." + clg

Dim a, b As String a = RadioButton1.Text b = RadioButton2.Text If RadioButton1.Checked Then Label1.Text = "gender is.." + a Else Label1.Text = "gender is.." + b End If

If CheckBox1.Checked = True Then Label8.Text = "Hobbies are.." + CheckBox1.Text End If

If CheckBox2.Checked = True Then Label8.Text &= "," + CheckBox2.Text End If


If CheckBox4.Checked = True Then

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Label8.Text &= "," + CheckBox4.Text End If



If CheckBox7.Checked = True Then Label8.Text &= "," + CheckBox7.Text End If End SubEnd Class

Output:-

Practical:-7

Aim: - Implement MDI Form which demonstrates use of all Child Forms.

VIMAT/BE/CE/120940107018


Program

Form1.vb

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim windows1 As New Form2 windows1.MdiParent = Me windows1.Show()

End SubEnd Class

Form2.vb

Public Class Form2

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Me.Close()

End SubEnd Class

Output:-

VIMAT/BE/CE/120940107018


VIMAT/BE/CE/120940107018


Practical:-9

Aim: - Create Application which calculate simple Interest and Compound Interest.

Program

Public Class Form1

Private Sub btnExit_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles btnExit.Click End End Sub

Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click Dim principal, years As Integer Dim rate, interest, amount As Single

principal = txtPrincipal.Text years = txtYears.Text rate = txtRate.Text

If rbSimpleInterest.Checked = True Then interest = (principal * years * rate) / 100 Else amount = principal * Math.Pow((1 + rate / 100), years) interest = amount - principal End If txtInterest.Text = interest End Sub

Private Sub btnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClear.Click txtPrincipal.Text = " " txtYears.Text = " " txtRate.Text = " " txtInterest.Text = " " End SubEnd Class

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Output:-

Practical:-10

VIMAT/BE/CE/120940107018


Aim: - Implement Window Form based Application that includes functionality Insert, Update, Delete and Display Records of Database.

Program

Imports System.Data.SqlClient

Public Class Form1

Dim con As New SqlConnection Dim cmd As New SqlCommand Dim myAdapter As SqlDataAdapter Dim myDataSet As DataSet

Private Sub btInsert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btInsert.Click con.ConnectionString = "Data Source=ADMIN-PC;Initial Catalog=Emp;Integrated Security=True"

con.Open()

cmd.Connection = con cmd.CommandText = "INSERT INTO emp (Emp_id, Emp_name, Emp_address, Emp_phone) VALUES (@ID,@Name,@Address,@Phone)"

cmd.Parameters.AddWithValue("@ID", TextBox1.Text) cmd.Parameters.AddWithValue("@Name", TextBox2.Text) cmd.Parameters.AddWithValue("@Address", TextBox3.Text) cmd.Parameters.AddWithValue("@Phone", TextBox4.Text) cmd.ExecuteNonQuery()

con.Close()

MsgBox("Added Successfully") End Sub

Private Sub btDisplay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btDisplay.Click DataGridView1.Show() con.ConnectionString = "Data Source=ADMIN-PC;Initial Catalog=Emp;Integrated Security=True"

con.Open()

cmd.Connection = con

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cmd.CommandText = " SELECT * FROM emp "

myDataSet = New DataSet()

'Instantiate DataAdapter object myAdapter = New SqlDataAdapter()

'Set DataAdapter command properties myAdapter.SelectCommand = cmd

'Populate the Dataset myAdapter.Fill(myDataSet, "emp")

If (myDataSet.Tables("emp").Rows.Count = 0) Then MessageBox.Show("There are currently no registries in the database.") Else DataGridView1.DataSource = myDataSet.Tables("emp") End If

cmd.ExecuteNonQuery()

con.Close() End Sub

Private Sub btDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btDelete.Click con.ConnectionString = "Data Source=ADMIN-PC;Initial Catalog=Emp;Integrated Security=True"

con.Open()

cmd.Connection = con cmd.CommandText = "Delete From emp where Emp_id='" & TextBox1.Text & "' "

cmd.Parameters.AddWithValue("@ID", TextBox1.Text) cmd.Parameters.AddWithValue("@Name", TextBox2.Text) cmd.Parameters.AddWithValue("@Address", TextBox3.Text) cmd.Parameters.AddWithValue("@Phone", TextBox4.Text)

cmd.ExecuteNonQuery() MsgBox(" delete Sucecessfully") con.Close() End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

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DataGridView1.Hide()

End Sub

Private Sub btUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btUpdate.Click con.ConnectionString = "Data Source=ADMIN-PC;Initial Catalog=Emp;Integrated Security=True"

con.Open()

cmd.Connection = con cmd.CommandText = "update emp set Emp_id = '" & TextBox1.Text & "', " & " Emp_name = '" & TextBox2.Text & "', " & " Emp_address ='" & TextBox3.Text & "'," & "Emp_phone = '" & TextBox4.Text & "' where Emp_id = '" & TextBox1.Text & "'"

cmd.Parameters.AddWithValue("@ID", TextBox1.Text) cmd.Parameters.AddWithValue("@Name", TextBox2.Text) cmd.Parameters.AddWithValue("@Address", TextBox3.Text) cmd.Parameters.AddWithValue("@Phone", TextBox4.Text)

cmd.ExecuteNonQuery()

con.Close()

MsgBox("update Successfully")

End SubEnd Class

Output:-

VIMAT/BE/CE/120940107018


Practical:-11

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Aim: - Implement Application Using GDI+.

Program

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;

namespace WindowsFormsApplication1{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) {

} protected override void OnPaint(PaintEventArgs args) { //Get the Graphics object from PaintEventArgs Graphics g = args.Graphics; //Draw rectangle g.DrawRectangle( new Pen(Color.Blue, 3), new Rectangle(10, 10, 50, 50)); //Fill ellipse g.FillEllipse( Brushes.Red, new Rectangle(60, 60, 100, 100)); //Draw text g.DrawString("Text", new Font("Verdana", 14), new SolidBrush(Color.Green), 200, 200); } }}

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Output:-

Practical:-13

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Aim: Write a program to create a class which implements Constructors, Destructors, Overloading and overriding concepts using C#.

Program:

using System;using System.Collections.Generic;using System.Linq;using System.Text;

namespace ConsoleApplication1{ class Base { public Base() { int a = 10; Console.WriteLine("Constructor(no args) Result : " + a); Console.WriteLine("--------------------------------------"); } public Base(int b) { int a = b; Console.WriteLine("Constructor(with args) Result : " + a); Console.WriteLine("--------------------------------------"); }

public void circle() { float r = 6; Double a = 3.14 * r * r; Console.WriteLine("Method(no args) Circle1 Result : " + a); Console.WriteLine("--------------------------------------"); } public void circle(float b) { float r = b; Double a = 3.14 * r * r; Console.WriteLine("Method(With args) Circle2 Result : " + a); Console.WriteLine("--------------------------------------"); }

public virtual void circle(String f_name, String l_name) { Console.WriteLine("Base Method : ");

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Console.WriteLine(f_name + " " + l_name); Console.WriteLine("--------------------------------------"); }

~Base() { Console.WriteLine("Its Distructor..."); Console.ReadLine(); }

} class Child : Base { public void circle() { float r = 6; Double a = 3.14 * r * r; Console.WriteLine("Method override(no args) Result : " + a); Console.WriteLine("--------------------------------------"); } public override void circle(String f_name, String l_name) { Console.WriteLine("Override Method : "); Console.WriteLine(f_name + " " + l_name); Console.WriteLine("--------------------------------------"); } }

class Program { public static void Main(string[] args) { Base ob1 = new Base(); Base ob2 = new Base(10);

ob1.circle(); ob1.circle(20);

ob1 = new Child(); ob1.circle(); ob1.circle("KRISHNA", "MODI"); Console.ReadLine(); } }}

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Output:

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Practical:-14

Aim: Use Events and delegates in C# application.

Program:

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;

namespace ConsoleApplication1{ //public delegate void SimpleDelegate();

public class EventTest { public event BoilerLogHandler BoilerEventLog; public delegate void BoilerLogHandler(string status); private int value;

public delegate void NumManipulationHandler();

public event NumManipulationHandler ChangeNum;

protected virtual void OnNumChanged() { if (ChangeNum != null) { ChangeNum(); } else { Console.WriteLine("Event fired!"); }

} public EventTest(int n) { SetValue(n); } public void SetValue(int n) { if (value != n)

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{ value = n; OnNumChanged(); } }

class TestDelegate {

/*public static void MyFunc() { Console.WriteLine("I was called by delegate ..."); }*/

static void Main(string[] args) { EventTest e = new EventTest(5); e.SetValue(7); e.SetValue(11); Console.ReadKey(); /* // Instantiation SimpleDelegate simpleDelegate = new SimpleDelegate(MyFunc);

// Invocation simpleDelegate();*/ Console.ReadLine(); } } }}

Output:

VIMAT/BE/CE/120940107018


Practical:-15

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Aim: Design Student Registration from Using ASP.Net.

Program:

Default.aspx

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="WebApplication6._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <div> <table border="0" cellpadding="0" cellspacing="0"> <tr> <th colspan="3"> Registration </th> </tr> <tr> <td> Username </td> <td> <asp:TextBox ID="txtUsername" runat="server" /> </td> <td> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ErrorMessage="Required" ForeColor="Red" ControlToValidate="txtUsername" runat="server" /> </td> </tr> <tr> <td> Password </td> <td>

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<asp:TextBox ID="txtPassword" runat="server" TextMode="Password" /> </td> <td> <asp:RequiredFieldValidator ID="RequiredFieldValidator2" ErrorMessage="Required" ForeColor="Red" ControlToValidate="txtPassword" runat="server" /> </td> </tr> <tr> <td> Confirm Password </td> <td> <asp:TextBox ID="txtConfirmPassword" runat="server" TextMode="Password" /> </td> <td> <asp:CompareValidator ID="CompareValidator1" ErrorMessage="Passwords do not match." ForeColor="Red" ControlToCompare="txtPassword" ControlToValidate="txtConfirmPassword" runat="server" /> </td> </tr> <tr> <td> Email </td> <td> <asp:TextBox ID="txtEmail" runat="server" /> </td> <td> <asp:RequiredFieldValidator ID="RequiredFieldValidator3" ErrorMessage="Required" Display="Dynamic" ForeColor="Red" ControlToValidate="txtEmail" runat="server" /> <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" Display="Dynamic" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*" ControlToValidate="txtEmail" ForeColor="Red" ErrorMessage="Invalid email address." /> </td> </tr> <tr> <td> </td> <td> <asp:Button ID="Button1" Text="Submit" runat="server" OnClick="RegisterUser" /> </td> <td> </td>

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</tr></table> </div> </form></body></html>

Default.aspx.vb

Imports System.Data.SqlClient

Public Class _Default Inherits System.Web.UI.Page

Protected Sub RegisterUser(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click Dim userId As Integer = 0 Dim constr As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString Using con As New SqlConnection(constr)

Using cmd As New SqlCommand("INSERT INTO [Users] (Username,Password,Email) VALUES(@Username, @Password , @Email )") Using sda As New SqlDataAdapter()

cmd.Parameters.AddWithValue("@Username", txtUsername.Text.Trim()) cmd.Parameters.AddWithValue("@Password", txtPassword.Text.Trim()) cmd.Parameters.AddWithValue("@Email", txtEmail.Text.Trim()) cmd.Connection = con con.Open() cmd.ExecuteNonQuery() con.Close() End Using End Using Dim message As String = String.Empty Select Case userId Case -1 message = "Username already exists.\nPlease choose a different username." Exit Select Case -2 message = "Supplied email address has already been used." Exit Select Case Else message = "Registration successful.\nUser Id: " + userId.ToString() Exit Select

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End Select End Using End SubEnd Class

Output:

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Practical:-16

Aim: Create Web application which Demonstrate Use Of Web services.

Program:

Imports System.Web.ServicesImports System.Web.Services.ProtocolsImports System.ComponentModel

' To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.' <System.Web.Script.Services.ScriptService()> _<System.Web.Services.WebService(Namespace:="http://tempuri.org/")> _<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _<ToolboxItem(False)> _Public Class Service1 Inherits System.Web.Services.WebService

<WebMethod()> _ Public Function HelloWorld() As String Return "Hello World" End Function <WebMethod()> _ Public Function addition(ByVal a As Integer, ByVal b As Integer) As String Return a + b End Function <WebMethod()> _ Public Function subt(ByVal a As Integer, ByVal b As Integer) As String Return a - b End Function <WebMethod()> _ Public Function mul(ByVal a As Integer, ByVal b As Integer) As String Return a * b End Function <WebMethod()> _ Public Function div(ByVal a As Integer, ByVal b As Integer) As String Return a / b End FunctionEnd Class

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Output:

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