GUI Windows Form C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
enum DateTimeFormat {
    ShowClock,
    ShowDay
}
public class MainWindow : Form {
    DateTimeFormat dtFormat = DateTimeFormat.ShowClock;
    private ToolStripMenuItem currentCheckedItem;
    public MainWindow() {
        InitializeComponent();
        BackColor = Color.CadetBlue;
        currentCheckedItem = currentTimeToolStripMenuItem;
        currentCheckedItem.Checked = true;
    }
    private void timerDateTimeUpdate_Tick(object sender, EventArgs e) {
        string panelInfo = "";
        if (dtFormat == DateTimeFormat.ShowClock)
            panelInfo = DateTime.Now.ToLongTimeString();
        else
            panelInfo = DateTime.Now.ToLongDateString();
        toolStripStatusLabelClock.Text = panelInfo;
    }
    private void currentTimeToolStripMenuItem_Click(object sender, EventArgs e) {
        currentCheckedItem.Checked = false;
        dtFormat = DateTimeFormat.ShowClock;
        currentCheckedItem = currentTimeToolStripMenuItem;
        currentCheckedItem.Checked = true;
    }
    private void dayoftheWeekToolStripMenuItem_Click(object sender, EventArgs e) {
        currentCheckedItem.Checked = false;
        dtFormat = DateTimeFormat.ShowDay;
        currentCheckedItem = dayoftheWeekToolStripMenuItem;
        currentCheckedItem.Checked = true;
    }
    private void exitToolStripMenuItem_Click(object sender, EventArgs e) {
        Application.Exit();
    }
    private void aboutToolStripMenuItem_Click(object sender, EventArgs e) {
        MessageBox.Show("My StatusStripApp!");
    }
    private void exitToolStripMenuItem_MouseHover(object sender, EventArgs e) {
        toolStripStatusLabelMenuState.Text = "Exits the app.";
    }
    private void aboutToolStripMenuItem_MouseHover(object sender, EventArgs e) {
        toolStripStatusLabelMenuState.Text = "Shows about box.";
    }
    private void dayoftheWeekToolStripMenuItem_MouseHover(object sender, EventArgs e) {
        toolStripStatusLabelMenuState.Text = "Shows the day of the week.";
    }
    private void currentTimeToolStripMenuItem_MouseHover(object sender, EventArgs e) {
        toolStripStatusLabelMenuState.Text = "Shows the current time.";
    }
    private void SetReadyPrompt(object sender, EventArgs e) {
        toolStripStatusLabelMenuState.Text = "Ready.";
    }
    private void InitializeComponent() {
        this.mainStatusStrip = new System.Windows.Forms.StatusStrip();
        this.toolStripStatusLabelMenuState = new System.Windows.Forms.ToolStripStatusLabel();
        this.toolStripStatusLabelClock = new System.Windows.Forms.ToolStripStatusLabel();
        this.toolStripDropDownButtonDateTime = new System.Windows.Forms.ToolStripDropDownButton();
        this.dayoftheWeekToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.currentTimeToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.menuStrip1 = new System.Windows.Forms.MenuStrip();
        this.fileToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.exitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.helpToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.aboutToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.timerDateTimeUpdate = new System.Windows.Forms.Timer();
        this.mainStatusStrip.SuspendLayout();
        this.menuStrip1.SuspendLayout();
        this.SuspendLayout();
        // 
        // mainStatusStrip
        // 
        this.mainStatusStrip.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.toolStripStatusLabelMenuState,
            this.toolStripStatusLabelClock,
            this.toolStripDropDownButtonDateTime});
        this.mainStatusStrip.LayoutStyle = System.Windows.Forms.ToolStripLayoutStyle.Table;
        this.mainStatusStrip.Location = new System.Drawing.Point(0, 78);
        this.mainStatusStrip.Name = "mainStatusStrip";
        this.mainStatusStrip.Size = new System.Drawing.Size(361, 27);
        this.mainStatusStrip.TabIndex = 0;
        this.mainStatusStrip.Text = "statusStrip1";
        // 
        // toolStripStatusLabelMenuState
        // 
        this.toolStripStatusLabelMenuState.Name = "toolStripStatusLabelMenuState";
        this.toolStripStatusLabelMenuState.Spring = true;
        this.toolStripStatusLabelMenuState.TextAlign = System.Drawing.ContentAlignment.TopLeft;
        // 
        // toolStripStatusLabelClock
        // 
        this.toolStripStatusLabelClock.BorderSides = ((System.Windows.Forms.ToolStripStatusLabelBorderSides)((((System.Windows.Forms.ToolStripStatusLabelBorderSides.Left | System.Windows.Forms.ToolStripStatusLabelBorderSides.Top)
                    | System.Windows.Forms.ToolStripStatusLabelBorderSides.Right)
                    | System.Windows.Forms.ToolStripStatusLabelBorderSides.Bottom)));
        this.toolStripStatusLabelClock.Name = "toolStripStatusLabelClock";
        // 
        // toolStripDropDownButtonDateTime
        // 
        this.toolStripDropDownButtonDateTime.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;
        this.toolStripDropDownButtonDateTime.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.dayoftheWeekToolStripMenuItem,
            this.currentTimeToolStripMenuItem});
        this.toolStripDropDownButtonDateTime.ImageTransparentColor = System.Drawing.Color.Magenta;
        this.toolStripDropDownButtonDateTime.Name = "toolStripDropDownButtonDateTime";
        this.toolStripDropDownButtonDateTime.Text = "toolStripDropDownButton1";
        // 
        // dayoftheWeekToolStripMenuItem
        // 
        this.dayoftheWeekToolStripMenuItem.Name = "dayoftheWeekToolStripMenuItem";
        this.dayoftheWeekToolStripMenuItem.Text = "Day of the Week";
        this.dayoftheWeekToolStripMenuItem.MouseLeave += new System.EventHandler(this.SetReadyPrompt);
        this.dayoftheWeekToolStripMenuItem.MouseHover += new System.EventHandler(this.dayoftheWeekToolStripMenuItem_MouseHover);
        this.dayoftheWeekToolStripMenuItem.Click += new System.EventHandler(this.dayoftheWeekToolStripMenuItem_Click);
        // 
        // currentTimeToolStripMenuItem
        // 
        this.currentTimeToolStripMenuItem.Name = "currentTimeToolStripMenuItem";
        this.currentTimeToolStripMenuItem.Text = "Current Time";
        this.currentTimeToolStripMenuItem.MouseLeave += new System.EventHandler(this.SetReadyPrompt);
        this.currentTimeToolStripMenuItem.MouseHover += new System.EventHandler(this.currentTimeToolStripMenuItem_MouseHover);
        this.currentTimeToolStripMenuItem.Click += new System.EventHandler(this.currentTimeToolStripMenuItem_Click);
        // 
        // menuStrip1
        // 
        this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.fileToolStripMenuItem,
            this.helpToolStripMenuItem});
        this.menuStrip1.Location = new System.Drawing.Point(0, 0);
        this.menuStrip1.Name = "menuStrip1";
        this.menuStrip1.Size = new System.Drawing.Size(361, 24);
        this.menuStrip1.TabIndex = 1;
        this.menuStrip1.Text = "menuStrip1";
        // 
        // fileToolStripMenuItem
        // 
        this.fileToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.exitToolStripMenuItem});
        this.fileToolStripMenuItem.Name = "fileToolStripMenuItem";
        this.fileToolStripMenuItem.Text = "&File";
        // 
        // exitToolStripMenuItem
        // 
        this.exitToolStripMenuItem.Name = "exitToolStripMenuItem";
        this.exitToolStripMenuItem.Text = "E&xit";
        this.exitToolStripMenuItem.MouseLeave += new System.EventHandler(this.SetReadyPrompt);
        this.exitToolStripMenuItem.MouseHover += new System.EventHandler(this.exitToolStripMenuItem_MouseHover);
        this.exitToolStripMenuItem.Click += new System.EventHandler(this.exitToolStripMenuItem_Click);
        // 
        // helpToolStripMenuItem
        // 
        this.helpToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.aboutToolStripMenuItem});
        this.helpToolStripMenuItem.Name = "helpToolStripMenuItem";
        this.helpToolStripMenuItem.Text = "&Help";
        // 
        // aboutToolStripMenuItem
        // 
        this.aboutToolStripMenuItem.Name = "aboutToolStripMenuItem";
        this.aboutToolStripMenuItem.Text = "&About";
        this.aboutToolStripMenuItem.MouseLeave += new System.EventHandler(this.SetReadyPrompt);
        this.aboutToolStripMenuItem.MouseHover += new System.EventHandler(this.aboutToolStripMenuItem_MouseHover);
        this.aboutToolStripMenuItem.Click += new System.EventHandler(this.aboutToolStripMenuItem_Click);
        // 
        // timerDateTimeUpdate
        // 
        this.timerDateTimeUpdate.Enabled = true;
        this.timerDateTimeUpdate.Interval = 1000;
        this.timerDateTimeUpdate.Tick += new System.EventHandler(this.timerDateTimeUpdate_Tick);
        // 
        // MainWindow
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(361, 105);
        this.Controls.Add(this.mainStatusStrip);
        this.Controls.Add(this.menuStrip1);
        this.MainMenuStrip = this.menuStrip1;
        this.Name = "MainWindow";
        this.Text = "Form1";
        this.mainStatusStrip.ResumeLayout(false);
        this.menuStrip1.ResumeLayout(false);
        this.ResumeLayout(false);
        this.PerformLayout();
    }
    private System.Windows.Forms.StatusStrip mainStatusStrip;
    private System.Windows.Forms.ToolStripStatusLabel toolStripStatusLabelMenuState;
    private System.Windows.Forms.ToolStripStatusLabel toolStripStatusLabelClock;
    private System.Windows.Forms.ToolStripDropDownButton toolStripDropDownButtonDateTime;
    private System.Windows.Forms.MenuStrip menuStrip1;
    private System.Windows.Forms.ToolStripMenuItem fileToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem exitToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem helpToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem aboutToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem dayoftheWeekToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem currentTimeToolStripMenuItem;
    private System.Windows.Forms.Timer timerDateTimeUpdate;
    [STAThread]
    static void Main() {
        Application.EnableVisualStyles();
        Application.Run(new MainWindow());
    }
}