Answer to Question #4956 in C# for vassan

Question

Write a GUI application which allows the user to enter a name, password and phone number. When they click the Save button, the three fields are appended to a text file in a single line, separated by commas. The application should handle 5 records. Use it to add the 5 records to the text file.

Answer 1

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

namespace q4956
{
    public partial class Form1 : Form
    {
        
        public Form1()
        {
            InitializeComponent();
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            string name = "";
            string password = "";
            string phone = "";

            if (txtName.Text.Length != 0)
            {
                name = txtName.Text;
            }
            else
            {
                lblNameError.Text = "*";
                return;
            }
            if (txtPassword.Text.Length != 0)
            {
                password = txtPassword.Text;
            }
            else
            {
                lblPasswordError.Text = "*";
                return;
            } if (txtPhone.Text.Length != 0)
            {
                phone = txtPhone.Text;
            }
            else
            {
                lblPhoneError.Text = "*";
                return;
            }
            lblNameError.Text = "";
            lblPasswordError.Text = "";
            lblPhoneError.Text = "";
            StreamWriter sr = new StreamWriter("db.txt",true);
            sr.WriteLine(name + ","+password+","+phone);
            sr.Close();
            sr.Dispose();
            txtName.Text = "";
            txtPassword.Text = "";
            txtPhone.Text = "";
        }
    }
}


form 1 designer

namespace q4956
{
    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.txtName = new System.Windows.Forms.TextBox();
            this.txtPassword = new System.Windows.Forms.TextBox();
            this.label2 = new System.Windows.Forms.Label();
            this.txtPhone = new System.Windows.Forms.TextBox();
            this.label3 = new System.Windows.Forms.Label();
            this.lblNameError = new System.Windows.Forms.Label();
            this.lblPasswordError = new System.Windows.Forms.Label();
            this.lblPhoneError = new System.Windows.Forms.Label();
            this.btnSave = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(35, 15);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(38, 13);
            this.label1.TabIndex = 0;
            this.label1.Text = "Name:";
            // 
            // txtName
            // 
            this.txtName.Location = new System.Drawing.Point(74, 12);
            this.txtName.Name = "txtName";
            this.txtName.Size = new System.Drawing.Size(100, 20);
            this.txtName.TabIndex = 1;
            // 
            // txtPassword
            // 
            this.txtPassword.Location = new System.Drawing.Point(74, 39);
            this.txtPassword.Name = "txtPassword";
            this.txtPassword.PasswordChar = '*';
            this.txtPassword.Size = new System.Drawing.Size(100, 20);
            this.txtPassword.TabIndex = 2;
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(17, 42);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(56, 13);
            this.label2.TabIndex = 3;
            this.label2.Text = "Password:";
            // 
            // txtPhone
            // 
            this.txtPhone.Location = new System.Drawing.Point(74, 66);
            this.txtPhone.Name = "txtPhone";
            this.txtPhone.Size = new System.Drawing.Size(100, 20);
            this.txtPhone.TabIndex = 4;
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(33, 69);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(41, 13);
            this.label3.TabIndex = 5;
            this.label3.Text = "Phone:";
            // 
            // lblNameError
            // 
            this.lblNameError.AutoSize = true;
            this.lblNameError.ForeColor = System.Drawing.Color.Red;
            this.lblNameError.Location = new System.Drawing.Point(181, 15);
            this.lblNameError.Name = "lblNameError";
            this.lblNameError.Size = new System.Drawing.Size(0, 13);
            this.lblNameError.TabIndex = 6;
            // 
            // lblPasswordError
            // 
            this.lblPasswordError.AutoSize = true;
            this.lblPasswordError.ForeColor = System.Drawing.Color.Red;
            this.lblPasswordError.Location = new System.Drawing.Point(181, 42);
            this.lblPasswordError.Name = "lblPasswordError";
            this.lblPasswordError.Size = new System.Drawing.Size(0, 13);
            this.lblPasswordError.TabIndex = 7;
            // 
            // lblPhoneError
            // 
            this.lblPhoneError.AutoSize = true;
            this.lblPhoneError.ForeColor = System.Drawing.Color.Red;
            this.lblPhoneError.Location = new System.Drawing.Point(181, 69);
            this.lblPhoneError.Name = "lblPhoneError";
            this.lblPhoneError.Size = new System.Drawing.Size(0, 13);
            this.lblPhoneError.TabIndex = 8;
            // 
            // btnSave
            // 
            this.btnSave.Location = new System.Drawing.Point(74, 103);
            this.btnSave.Name = "btnSave";
            this.btnSave.Size = new System.Drawing.Size(75, 23);
            this.btnSave.TabIndex = 9;
            this.btnSave.Text = "Save";
            this.btnSave.UseVisualStyleBackColor = true;
            this.btnSave.Click += new System.EventHandler(this.btnSave_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(214, 148);
            this.Controls.Add(this.btnSave);
            this.Controls.Add(this.lblPhoneError);
            this.Controls.Add(this.lblPasswordError);
            this.Controls.Add(this.lblNameError);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.txtPhone);
            this.Controls.Add(this.label2);
            this.Controls.Add(this.txtPassword);
            this.Controls.Add(this.txtName);
            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.TextBox txtName;
        private System.Windows.Forms.TextBox txtPassword;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.TextBox txtPhone;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label lblNameError;
        private System.Windows.Forms.Label lblPasswordError;
        private System.Windows.Forms.Label lblPhoneError;
        private System.Windows.Forms.Button btnSave;
    }
}

Program 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace q4956
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}