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;
public class Form1 : Form
{
  private System.Windows.Forms.SplitContainer splitContainer1;
  private System.Windows.Forms.SplitContainer splitContainer2;
  private System.Windows.Forms.WebBrowser webBrowser1;
  private System.Windows.Forms.TextBox TextBox1;
  private System.Windows.Forms.Panel pnlFileList;
  private System.Windows.Forms.Button cmdHide;
  private System.Windows.Forms.ListView ListView1;
  private System.Windows.Forms.ColumnHeader ColumnHeader1;
  private System.Windows.Forms.Panel pnlShow;
  private System.Windows.Forms.Button cmdShow;
  public Form1() {
        InitializeComponent();
        ListView1.Items.Add("A");
        ListView1.Items.Add("B");
        ListView1.Items.Add("C");
  }
  private void cmdHide_Click(object sender, EventArgs e)
  {
    splitContainer1.Panel1Collapsed = true;
    pnlShow.Visible = true;
  }
  private void cmdShow_Click(object sender, EventArgs e)
  {
    splitContainer1.Panel1Collapsed = false;
    pnlShow.Visible = false;
    
  }
  private void InitializeComponent()
  {
        this.splitContainer1 = new System.Windows.Forms.SplitContainer();
        this.pnlFileList = new System.Windows.Forms.Panel();
        this.cmdHide = new System.Windows.Forms.Button();
        this.ListView1 = new System.Windows.Forms.ListView();
        this.ColumnHeader1 = new System.Windows.Forms.ColumnHeader();
        this.splitContainer2 = new System.Windows.Forms.SplitContainer();
        this.webBrowser1 = new System.Windows.Forms.WebBrowser();
        this.TextBox1 = new System.Windows.Forms.TextBox();
        this.pnlShow = new System.Windows.Forms.Panel();
        this.cmdShow = new System.Windows.Forms.Button();
        this.splitContainer1.Panel1.SuspendLayout();
        this.splitContainer1.Panel2.SuspendLayout();
        this.splitContainer1.SuspendLayout();
        this.pnlFileList.SuspendLayout();
        this.splitContainer2.Panel1.SuspendLayout();
        this.splitContainer2.Panel2.SuspendLayout();
        this.splitContainer2.SuspendLayout();
        this.pnlShow.SuspendLayout();
        this.SuspendLayout();
        // 
        // splitContainer1
        // 
        this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
        this.splitContainer1.Location = new System.Drawing.Point(29, 10);
        this.splitContainer1.Name = "splitContainer1";
        // 
        // splitContainer1.Panel1
        // 
        this.splitContainer1.Panel1.Controls.Add(this.pnlFileList);
        this.splitContainer1.Panel1MinSize = 50;
        // 
        // splitContainer1.Panel2
        // 
        this.splitContainer1.Panel2.Controls.Add(this.splitContainer2);
        this.splitContainer1.Size = new System.Drawing.Size(477, 366);
        this.splitContainer1.SplitterDistance = 155;
        this.splitContainer1.TabIndex = 0;
        this.splitContainer1.Text = "splitContainer1";
        // 
        // pnlFileList
        // 
        this.pnlFileList.Controls.Add(this.cmdHide);
        this.pnlFileList.Controls.Add(this.ListView1);
        this.pnlFileList.Dock = System.Windows.Forms.DockStyle.Fill;
        this.pnlFileList.Location = new System.Drawing.Point(0, 0);
        this.pnlFileList.Name = "pnlFileList";
        this.pnlFileList.Padding = new System.Windows.Forms.Padding(0, 0, 1, 0);
        this.pnlFileList.Size = new System.Drawing.Size(155, 366);
        this.pnlFileList.TabIndex = 21;
        // 
        // cmdHide
        // 
        this.cmdHide.Dock = System.Windows.Forms.DockStyle.Bottom;
        this.cmdHide.FlatStyle = System.Windows.Forms.FlatStyle.System;
        this.cmdHide.Location = new System.Drawing.Point(0, 346);
        this.cmdHide.Name = "cmdHide";
        this.cmdHide.Size = new System.Drawing.Size(154, 20);
        this.cmdHide.TabIndex = 23;
        this.cmdHide.Text = "<< Hide";
        this.cmdHide.Click += new System.EventHandler(this.cmdHide_Click);
        // 
        // ListView1
        // 
        this.ListView1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                    | System.Windows.Forms.AnchorStyles.Left)
                    | System.Windows.Forms.AnchorStyles.Right)));
        this.ListView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
        this.ColumnHeader1});
        this.ListView1.Location = new System.Drawing.Point(0, 3);
        this.ListView1.Name = "ListView1";
        this.ListView1.Size = new System.Drawing.Size(152, 337);
        this.ListView1.TabIndex = 22;
        this.ListView1.UseCompatibleStateImageBehavior = false;
        this.ListView1.View = System.Windows.Forms.View.Details;
        // 
        // ColumnHeader1
        // 
        this.ColumnHeader1.Name = "ColumnHeader1";
        this.ColumnHeader1.Text = "File";
        this.ColumnHeader1.Width = 99;
        // 
        // splitContainer2
        // 
        this.splitContainer2.Dock = System.Windows.Forms.DockStyle.Fill;
        this.splitContainer2.Location = new System.Drawing.Point(0, 0);
        this.splitContainer2.Name = "splitContainer2";
        this.splitContainer2.Orientation = System.Windows.Forms.Orientation.Horizontal;
        // 
        // splitContainer2.Panel1
        // 
        this.splitContainer2.Panel1.Controls.Add(this.webBrowser1);
        // 
        // splitContainer2.Panel2
        // 
        this.splitContainer2.Panel2.Controls.Add(this.TextBox1);
        this.splitContainer2.Size = new System.Drawing.Size(318, 366);
        this.splitContainer2.SplitterDistance = 173;
        this.splitContainer2.TabIndex = 0;
        this.splitContainer2.Text = "splitContainer2";
        // 
        // webBrowser1
        // 
        this.webBrowser1.Dock = System.Windows.Forms.DockStyle.Fill;
        this.webBrowser1.Location = new System.Drawing.Point(0, 0);
        this.webBrowser1.Name = "webBrowser1";
        this.webBrowser1.Size = new System.Drawing.Size(318, 173);
        this.webBrowser1.TabIndex = 0;
        // 
        // TextBox1
        // 
        this.TextBox1.Dock = System.Windows.Forms.DockStyle.Fill;
        this.TextBox1.Location = new System.Drawing.Point(0, 0);
        this.TextBox1.Multiline = true;
        this.TextBox1.Name = "TextBox1";
        this.TextBox1.ReadOnly = true;
        this.TextBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
        this.TextBox1.Size = new System.Drawing.Size(318, 189);
        this.TextBox1.TabIndex = 1;
        // 
        // pnlShow
        // 
        this.pnlShow.Controls.Add(this.cmdShow);
        this.pnlShow.Dock = System.Windows.Forms.DockStyle.Left;
        this.pnlShow.Location = new System.Drawing.Point(10, 10);
        this.pnlShow.Name = "pnlShow";
        this.pnlShow.Padding = new System.Windows.Forms.Padding(0, 0, 3, 0);
        this.pnlShow.Size = new System.Drawing.Size(19, 366);
        this.pnlShow.TabIndex = 23;
        this.pnlShow.Visible = false;
        // 
        // cmdShow
        // 
        this.cmdShow.Dock = System.Windows.Forms.DockStyle.Fill;
        this.cmdShow.FlatStyle = System.Windows.Forms.FlatStyle.System;
        this.cmdShow.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        this.cmdShow.Location = new System.Drawing.Point(0, 0);
        this.cmdShow.Name = "cmdShow";
        this.cmdShow.Size = new System.Drawing.Size(16, 366);
        this.cmdShow.TabIndex = 21;
        this.cmdShow.Text = ">";
        this.cmdShow.Click += new System.EventHandler(this.cmdShow_Click);
        // 
        // Form1
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(516, 386);
        this.Controls.Add(this.splitContainer1);
        this.Controls.Add(this.pnlShow);
        this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        this.Name = "Form1";
        this.Padding = new System.Windows.Forms.Padding(10);
        this.Text = "Split Window";
        this.splitContainer1.Panel1.ResumeLayout(false);
        this.splitContainer1.Panel2.ResumeLayout(false);
        this.splitContainer1.ResumeLayout(false);
        this.pnlFileList.ResumeLayout(false);
        this.splitContainer2.Panel1.ResumeLayout(false);
        this.splitContainer2.Panel2.ResumeLayout(false);
        this.splitContainer2.Panel2.PerformLayout();
        this.splitContainer2.ResumeLayout(false);
        this.pnlShow.ResumeLayout(false);
        this.ResumeLayout(false);
  }
  [STAThread]
  static void Main()
  {
    Application.EnableVisualStyles();
    Application.Run(new Form1());
  }
}