Question

Using Microsoft Visual Studio C#

In this lab assignment, you'll write code that parses an email address and formats the ci and zip code portion of an address. String Handling Email: nne@murach.com Parse City: Fresno State: ca Zp code: 93722 Format ให้ 2 Parsed String Formatted String User name: anne Domain name: murach.comm City, State, Zip: Fresno, CA 93722 OK OK Create a new Windows Forms Application named StringHandling and build the form as shown above. 1. Add code to parse the email address into two parts when the user clicks the Parse button the user name before the sign and the domain name after the @ sign. Be sure to check that the email contains an sign before you parse it, and display an error message if it doesn't. Also, be sure to remove any leading or trailing spaces that the user enters. Display the results in a message box like the first one shown above. 2. 3. Test the application with both valid and invalid email addresses to be sure it works correctly. Add code to format an address 4. Add code to format the city, state, and zip code when the user clicks the Format button. To do that, create a string that contains the city, state, and zip code and then use the Insert method to insert the appropriate characters. Be sure that the two-character state code is in uppercase. (You can assume that the user enters appropriate data in each text box.) Display the results in a message box like the second one shown above. Test the application to be sure it formats the city, state, and zip code correctly. 5.

Answer 1

Dear Student ,

As per the requirement submitted above , kindly find the below solution.

Here a new Windows Forms Application in C# is created using Visual Studio 2017 with name "StringHandling".This application contains a form with name "Form1.cs".Below are the files associated with form1.

1.Form1.cs[Design]

String Handling Email Parse City: State Zip code Format Exit

2.Form1.Designer.cs

namespace StringHandling
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;

/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}

#region Windows Form Designer generated code

/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.lblEmail = new System.Windows.Forms.Label();
this.txtEmail = new System.Windows.Forms.TextBox();
this.btnParse = new System.Windows.Forms.Button();
this.txtCity = new System.Windows.Forms.TextBox();
this.lblCity = new System.Windows.Forms.Label();
this.txtState = new System.Windows.Forms.TextBox();
this.lblState = new System.Windows.Forms.Label();
this.txtZipCode = new System.Windows.Forms.TextBox();
this.lblZipCode = new System.Windows.Forms.Label();
this.btnFormat = new System.Windows.Forms.Button();
this.btnExit = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// lblEmail
//
this.lblEmail.AutoSize = true;
this.lblEmail.Location = new System.Drawing.Point(28, 32);
this.lblEmail.Name = "lblEmail";
this.lblEmail.Size = new System.Drawing.Size(35, 13);
this.lblEmail.TabIndex = 0;
this.lblEmail.Text = "Email:";
//
// txtEmail
//
this.txtEmail.Location = new System.Drawing.Point(86, 29);
this.txtEmail.Name = "txtEmail";
this.txtEmail.Size = new System.Drawing.Size(172, 20);
this.txtEmail.TabIndex = 1;
//
// btnParse
//
this.btnParse.Location = new System.Drawing.Point(296, 32);
this.btnParse.Name = "btnParse";
this.btnParse.Size = new System.Drawing.Size(75, 23);
this.btnParse.TabIndex = 2;
this.btnParse.Text = "&Parse";
this.btnParse.UseVisualStyleBackColor = true;
this.btnParse.Click += new System.EventHandler(this.btnParse_Click);
//
// txtCity
//
this.txtCity.Location = new System.Drawing.Point(86, 79);
this.txtCity.Name = "txtCity";
this.txtCity.Size = new System.Drawing.Size(172, 20);
this.txtCity.TabIndex = 4;
//
// lblCity
//
this.lblCity.AutoSize = true;
this.lblCity.Location = new System.Drawing.Point(28, 82);
this.lblCity.Name = "lblCity";
this.lblCity.Size = new System.Drawing.Size(27, 13);
this.lblCity.TabIndex = 3;
this.lblCity.Text = "City:";
//
// txtState
//
this.txtState.Location = new System.Drawing.Point(86, 116);
this.txtState.Name = "txtState";
this.txtState.Size = new System.Drawing.Size(63, 20);
this.txtState.TabIndex = 6;
//
// lblState
//
this.lblState.AutoSize = true;
this.lblState.Location = new System.Drawing.Point(28, 119);
this.lblState.Name = "lblState";
this.lblState.RightToLeft = System.Windows.Forms.RightToLeft.No;
this.lblState.Size = new System.Drawing.Size(35, 13);
this.lblState.TabIndex = 5;
this.lblState.Text = "State:";
//
// txtZipCode
//
this.txtZipCode.Location = new System.Drawing.Point(86, 157);
this.txtZipCode.Name = "txtZipCode";
this.txtZipCode.Size = new System.Drawing.Size(113, 20);
this.txtZipCode.TabIndex = 8;
//
// lblZipCode
//
this.lblZipCode.AutoSize = true;
this.lblZipCode.Location = new System.Drawing.Point(28, 160);
this.lblZipCode.Name = "lblZipCode";
this.lblZipCode.Size = new System.Drawing.Size(52, 13);
this.lblZipCode.TabIndex = 7;
this.lblZipCode.Text = "Zip code:";
//
// btnFormat
//
this.btnFormat.Location = new System.Drawing.Point(296, 154);
this.btnFormat.Name = "btnFormat";
this.btnFormat.Size = new System.Drawing.Size(75, 23);
this.btnFormat.TabIndex = 9;
this.btnFormat.Text = "&Format";
this.btnFormat.UseVisualStyleBackColor = true;
this.btnFormat.Click += new System.EventHandler(this.btnFormat_Click);
//
// btnExit
//
this.btnExit.Location = new System.Drawing.Point(296, 203);
this.btnExit.Name = "btnExit";
this.btnExit.Size = new System.Drawing.Size(75, 23);
this.btnExit.TabIndex = 10;
this.btnExit.Text = "&Exit";
this.btnExit.UseVisualStyleBackColor = true;
this.btnExit.Click += new System.EventHandler(this.btnExit_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(383, 238);
this.Controls.Add(this.btnExit);
this.Controls.Add(this.btnFormat);
this.Controls.Add(this.txtZipCode);
this.Controls.Add(this.lblZipCode);
this.Controls.Add(this.txtState);
this.Controls.Add(this.lblState);
this.Controls.Add(this.txtCity);
this.Controls.Add(this.lblCity);
this.Controls.Add(this.btnParse);
this.Controls.Add(this.txtEmail);
this.Controls.Add(this.lblEmail);
this.Name = "Form1";
this.Text = "String Handling";
this.ResumeLayout(false);
this.PerformLayout();

}

#endregion

private System.Windows.Forms.Label lblEmail;
private System.Windows.Forms.TextBox txtEmail;
private System.Windows.Forms.Button btnParse;
private System.Windows.Forms.TextBox txtCity;
private System.Windows.Forms.Label lblCity;
private System.Windows.Forms.TextBox txtState;
private System.Windows.Forms.Label lblState;
private System.Windows.Forms.TextBox txtZipCode;
private System.Windows.Forms.Label lblZipCode;
private System.Windows.Forms.Button btnFormat;
private System.Windows.Forms.Button btnExit;
}
}

3.Form1.cs

//namespace
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;
//application namespace
namespace StringHandling
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
//Parse Button click
private void btnParse_Click(object sender, EventArgs e)
{
//taking email adress entered by user
string email = txtEmail.Text;
//checking if email contains @
if(email.Contains('@'))
{
//if email contains @
//declaring array to store string before @ and after @
string[] stringArray = new string[2];
//trim email and split based on @
stringArray = email.Trim().Split('@');
//display username and Domain name in the message box
MessageBox.Show("User name:" + stringArray[0] + Environment.NewLine + "Domain name:" + stringArray[1], "Parsed String");
}
else
{
//if email does not contains @ then display message
MessageBox.Show("Email should have @ sign");
}

}
//Format button click
private void btnFormat_Click(object sender, EventArgs e)
{ //concatenate string
string format = "CityStateZip" + txtCity.Text +", "+txtState.Text.ToUpper() + txtZipCode.Text;
//using Insert() method
format = format.Insert(4, ",").Insert(10, ",").Insert(14, ":");
//display on the message box
MessageBox.Show(format, "Formatted String");
}
//Exit button click
private void btnExit_Click(object sender, EventArgs e)
{
this.Close();//close form
}
}
}

======================================================

Output : Run application using F5 and will get the screen as shown below

Screen 1 :

String Handling Email Parse City: State Zip code Format Exit

Screen 2:Screen when email does not contains @

String Handling Emal: anne Email Parse City: State Email should have @ sign Zip code: Format OK Exit

Screen 3:Screen showing parsed string

String Handling Email anne@murach.com Parse Parsed String City: State r User name:anne Domain name:murach.com Zip code Format OK Exit

Screen 4:Screen showing formatted string

String Handling Email anne@murach.com Parse Cty: Fresano City: State са Zp code: 93722 Fomat Exit Formatted String City, State,Zip:Fresno, CA93722 OK

NOTE : PLEASE FEEL FREE TO PROVIDE FEEDBACK ABOUT THE SOLUTION.