Question

File l/O Create a Person class (firstName, lastName, phoneNumber, gender (Use radioButtons for gender in the GUI) ) Create a List<Person> Create a GUI that will collect the Person information from the user and have 3 buttons: Add, Display, Read. Add button Add the just created person to List<Person>, and append to a text file Display button > print out all persons currently in the List<Person> in a label in a visually attractive way Read button(USually will be used when we re-open the application ) should read the saved text file and recreate the List<Person>

answer in c# console application.

Answer 1

Output:

Form1 First Name nayantharar35546346female nayan tharan Last Name Phone Number 35546346 O FeMale Male Add Display Read X

Form.cs:

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

using System.Windows.Forms;
using System.IO;

namespace FileOperationForm
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

List<Person> list = new List<Person>();
private void button1_Click(object sender, EventArgs e)
{
Person obj = new Person();
obj.firstname = textBox1.Text;
obj.lastName = textBox2.Text;
obj.phoneNumber = textBox3.Text;
if(radioButton1.Checked==true)
{
obj.male = true;
}
else
{
obj.female = true;
}

list.Add(obj);

using (StreamWriter writer = new StreamWriter("..\\..\\TextFile1.txt", true))
{
writer.WriteLine(obj.firstname + obj.lastName+obj.phoneNumber);
if(obj.male==true)
{
writer.WriteLine("Male");
}
else
{
writer.WriteLine("FeMale");
}
}

}

private void button2_Click(object sender, EventArgs e)
{
  
for(int i=0;i<list.Count;i++)
{
richTextBox1.Text += list[i].firstname + list[i].lastName + list[i].phoneNumber;
if(list[i].male==true)
{
richTextBox1.Text += "male";
}
else
{
richTextBox1.Text += "female";
}

richTextBox1.Text += Environment.NewLine;
}

}

private void button3_Click(object sender, EventArgs e)
{
using (StreamReader reader = new StreamReader("..\\..\\TextFile1.txt"))
{
while (true)
{
string line = reader.ReadLine();
if (line == null)
{
break;
}

}
}
}
}

class Person
{
public string firstname;
public string lastName;
public string phoneNumber;
public bool female;
public bool male;
}
}

Designer code:

namespace FileOperationForm
{
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.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.textBox1 = new System.Windows.Forms.TextBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.textBox3 = new System.Windows.Forms.TextBox();
this.radioButton1 = new System.Windows.Forms.RadioButton();
this.radioButton2 = new System.Windows.Forms.RadioButton();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.richTextBox1 = new System.Windows.Forms.RichTextBox();
this.SuspendLayout();
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(40, 46);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(57, 13);
this.label1.TabIndex = 0;
this.label1.Text = "First Name";
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(40, 95);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(58, 13);
this.label2.TabIndex = 1;
this.label2.Text = "Last Name";
//
// label3
//
this.label3.AutoSize = true;
this.label3.Location = new System.Drawing.Point(40, 152);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(78, 13);
this.label3.TabIndex = 2;
this.label3.Text = "Phone Number";
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(127, 46);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(100, 20);
this.textBox1.TabIndex = 3;
//
// textBox2
//
this.textBox2.Location = new System.Drawing.Point(127, 92);
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(100, 20);
this.textBox2.TabIndex = 4;
//
// textBox3
//
this.textBox3.Location = new System.Drawing.Point(139, 152);
this.textBox3.Name = "textBox3";
this.textBox3.Size = new System.Drawing.Size(100, 20);
this.textBox3.TabIndex = 5;
//
// radioButton1
//
this.radioButton1.AutoSize = true;
this.radioButton1.Location = new System.Drawing.Point(92, 223);
this.radioButton1.Name = "radioButton1";
this.radioButton1.Size = new System.Drawing.Size(48, 17);
this.radioButton1.TabIndex = 6;
this.radioButton1.TabStop = true;
this.radioButton1.Text = "Male";
this.radioButton1.UseVisualStyleBackColor = true;
//
// radioButton2
//
this.radioButton2.AutoSize = true;
this.radioButton2.Location = new System.Drawing.Point(297, 223);
this.radioButton2.Name = "radioButton2";
this.radioButton2.Size = new System.Drawing.Size(60, 17);
this.radioButton2.TabIndex = 7;
this.radioButton2.TabStop = true;
this.radioButton2.Text = "FeMale";
this.radioButton2.UseVisualStyleBackColor = true;
//
// button1
//
this.button1.Location = new System.Drawing.Point(43, 314);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 8;
this.button1.Text = "Add ";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(216, 314);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(75, 23);
this.button2.TabIndex = 9;
this.button2.Text = "Display";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Location = new System.Drawing.Point(395, 314);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(75, 23);
this.button3.TabIndex = 10;
this.button3.Text = "Read";
this.button3.UseVisualStyleBackColor = true;
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// richTextBox1
//
this.richTextBox1.Location = new System.Drawing.Point(315, 46);
this.richTextBox1.Name = "richTextBox1";
this.richTextBox1.Size = new System.Drawing.Size(192, 151);
this.richTextBox1.TabIndex = 11;
this.richTextBox1.Text = "";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(572, 449);
this.Controls.Add(this.richTextBox1);
this.Controls.Add(this.button3);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.radioButton2);
this.Controls.Add(this.radioButton1);
this.Controls.Add(this.textBox3);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.label3);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
this.PerformLayout();

}

#endregion

private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.RadioButton radioButton1;
private System.Windows.Forms.RadioButton radioButton2;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.RichTextBox richTextBox1;
}
}

Please rate it if the above solution helps you in any way or if you have any concerns comment it, I will help you through again.