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 designernamespace 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()); } }}
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