Writing a Windows Form Application For .NET Framework Using

// Disclaimer and Copyright Information
// WinFileInfo.cs : Implementation of Windows Form Application
//
// All rights reserved.
//
// Written by Naveen K Kohli ([email protected])
// Version 1.0
//
// Distribute freely, except: don't remove my name from the source or
// documentation (don't take credit for my work), mark your changes (don't
// get me blamed for your possible bugs), don't alter or remove this
// notice.
// No warrantee of any kind, express or implied, is included with this
// software; use at your own risk, responsibility for damages (if any) to
// anyone resulting from the use of this software rests entirely with the
// user.
//
// Send bug reports, bug fixes, enhancements, requests, flames, etc. to
// [email protected]
///////////////////////////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////////////
// Summary:
// This tutuorial is designed to show how to write a Windows Form application
// in Microsoft.NET framework. Although Microsoft has provided the SDK with some
// /preliminary documentation but it is not enough. There are a lot of features
// that surface with trial and error. This tutorial is not a very comprehensive
// Windows Form application but it will show you some basic steps to get you
// started.
// The application shows how to write a dialog based application that can be used
// to check attributes of a file. This dialog box is similar to one that can be
// brought up by right clicking on a file and clicking on Properties option in
// Menu.
///////////////////////////////////////////////////////////////////////////////


#define NAVEEN_DEBUG

using System;
using System.Windows.Forms;
using System.Drawing;
using System.IO;
using System.Globalization;
using System.Runtime.InteropServices;
using System.Diagnostics;

public class WinFileInfo : Form
{

/*****************************************************************************
 Constructor : WinFileInfo

 Abstract:     Constructs an instance of WinFileInfo, calls Window's default
               contructor.
			
 Input Parameters:

******************************************************************************/
	public WinFileInfo ()
	{
		InitForm ();
	}

// Define some window control variables...
	Bitmap		m_Bkground			= new Bitmap ("bk_bitma.bmp");
	TextBox		wndFileName			= new TextBox ();
	Panel		wndPanel			= new Panel ();
	GroupBox	wndAttribBox		= new GroupBox ();
	Label		wndLabelFileName	= new Label ();
	Button		wndFindButton		= new Button ();
	Button		wndCloseButton		= new Button ();
	CheckBox	wndFileExistCheck	= new CheckBox ();
	CheckBox	wndArchiveCheck		= new CheckBox ();
	CheckBox	wndReadOnlyCheck	= new CheckBox ();
	CheckBox	wndHiddenCheck		= new CheckBox ();
	Label		wndCreateTimeLabel	= new Label ();
	Label		wndLastAccessLabel	= new Label ();
	Label		wndLastWriteLabel	= new Label ();
	Label		wndCreateTime		= new Label ();
	Label		wndLastAccessTime	= new Label ();
	Label		wndLastWriteTime	= new Label ();
	Label		wndLocationLabel	= new Label ();
	Label		wndLocation			= new Label ();

/*****************************************************************************
 Function:     InitForm

 Abstract:     Creates UI elements (buttons, edit controls, ...) on the 
               WinFileInfo Form.
			
 Input Parameters: None

 Returns: Void
******************************************************************************/
	public void InitForm ()
	{
		// Since this class has been inherited from Form, so we will make use of
		// this (pointer) to call methods on Form.

		// Set the text to be shown as the title of application.
		this.Text = "File Information Application";

		// Set the client area of the form.
		// Make sure that we have imported System.Drawing namespce to use Size.
		this.ClientSize = new Size(400, 280);

		// Indicate that we need Help button to be shown on the form.
		this.HelpButton = true;

		// We don't need a maximize box for this form.
		this.MaximizeBox = false;

		// Set the Find button to ACCEPT button for this form.
		this.AcceptButton  = wndFindButton;

		// Set the close button to Cancel operation button.
		this.CancelButton = wndCloseButton;

		// Set the start position of the form to be center of screen.
		this.StartPosition = FormStartPosition.CenterScreen;

		// Set the backgound image for the form.
		//this.BackgroundImage = m_Bkground;

		// Activate the Form.
		this.Activated += new EventHandler (this.WinFileInfo_activate);

		// Set some properties for static text control..
		wndLabelFileName.Anchor = AnchorStyles.Left;
		wndLabelFileName.Text = "File Name:";
		wndLabelFileName.Location = new Point (0, 5);
		wndLabelFileName.Size = new Size (60, 25);
		wndLabelFileName.TabStop = false;

		// Set some properties for the edit control..
		wndFileName.TabIndex = 0;
		wndFileName.BackColor = Color.White;
		wndFileName.Dock = DockStyle.Right;
		wndFileName.Location = new Point (65, 5);
		wndFileName.Size = new Size (140, 30);

		// Set some properties for Checkboxes now.
		wndFileExistCheck.Text = "File Exist";
		wndFileExistCheck.Enabled = false;
		wndFileExistCheck.Location = new Point (5, 45);

		wndArchiveCheck.Text = "Archive";
		wndArchiveCheck.Enabled = false;
		wndArchiveCheck.Size = new Size (72, 24);
		wndArchiveCheck.Location = new Point (5, 15);

		wndReadOnlyCheck.Text = "Read Only";
		wndReadOnlyCheck.Enabled = false;
		wndReadOnlyCheck.Size = new Size (115, 24);
		wndReadOnlyCheck.Location = new Point (135, 15);

		wndHiddenCheck.Text = "Hidden";
		wndHiddenCheck.Enabled = false;
		wndHiddenCheck.Size = new Size (72, 24);
		wndHiddenCheck.Location = new Point (300, 15);

		// Some properties for controls displaying various times.
		wndCreateTimeLabel.Text = "Created on:";
		wndCreateTimeLabel.Location = new Point (5, 160);
		wndCreateTimeLabel.Size = new Size (75, 24);

		wndLastAccessLabel.Text = "Last accessed on:";
		wndLastAccessLabel.Location = new Point (5, 185);
		wndLastAccessLabel.Size = new Size (100, 24);

		wndLastWriteLabel.Text = "Last write on:";
		wndLastWriteLabel.Location = new Point (5, 210);
		wndLastWriteLabel.Size = new Size (75, 24);

		wndCreateTime.Location = new Point (110, 160);
		wndLastAccessTime.Location = new Point (110, 185);
		wndLastWriteTime.Location = new Point (110, 210);

		wndCreateTime.Size = new Size (220, 24);
		wndLastAccessTime.Size = new Size (220, 24);
		wndLastWriteTime.Size = new Size (220, 24);

		// Some properties for location controls.
		wndLocationLabel.Text = "Location:";
		wndLocationLabel.Location = new Point (5, 130);
		wndLocationLabel.Size = new Size (72, 24);

		wndLocation.Location = new Point (75, 130);
		wndLocation.Size = new Size (325, 24);

		// Set some properties for Find Button.
		wndFindButton.Text = "Find";
		wndFindButton.TabIndex = 0;
		wndFindButton.Anchor = AnchorStyles.Right;
		wndFindButton.Size = new Size (72, 24);
		wndFindButton.Location = new Point (110, 250);
		wndFindButton.Click += new EventHandler (this.buttonFind_click);

		// Set some properties for Close button.
		wndCloseButton.Text = "Close";
		wndCloseButton.TabIndex = 1;
		wndCloseButton.Anchor = AnchorStyles.Right;
		wndCloseButton.Size = new Size (72, 24);
		wndCloseButton.Location = new Point (190, 250);
		wndCloseButton.Click += new EventHandler (this.ButtonClose_Click);

		// Set what edges of panel are going to be anchored to container's edges.
		// In this case, Each edge of the control anchors to the corresponding
		// edge of its container.
		//wndPanel.Anchor = AnchorStyles.All;
		wndPanel.Location = new Point (5, 5);
		wndPanel.Size = new Size (200, 30);
		wndPanel.Text = "File Name";
//		wndPanel.BackColor = Color.Blue;

		// Set the properties for the Attribue GroupBox.
		wndAttribBox.Location = new Point (5, 65);
		wndAttribBox.Text = "Attributes";
		wndAttribBox.Size = new Size (385, 50);

		// Add the CheckBox controls to the Attribute GroupBox.
		wndAttribBox.Controls.Add (wndArchiveCheck);
		wndAttribBox.Controls.Add (wndReadOnlyCheck);
		wndAttribBox.Controls.Add (wndHiddenCheck);

		// Add controls to the Form.
		this.Controls.AddRange(new Control [] {
											 wndPanel,
											 wndAttribBox,
											 wndFileExistCheck,
											 wndLocationLabel,
											 wndLocation,
											 wndCreateTimeLabel,
											 wndLastAccessLabel,
											 wndLastWriteLabel,
											 wndCreateTime,
											 wndLastAccessTime,
											 wndLastWriteTime,
											 wndFindButton,
											 wndCloseButton
											});
		// Add the controls to the panel.
		wndPanel.Controls.AddRange(new Control [] {
												wndLabelFileName,
												wndFileName
											   });
	}

/*****************************************************************************
 Function:     WinFileInfo_activate

 Abstract:     Invoked when the WinFileInfo application window becomes active.
               			
 Input Parameters: source(Object), e(EventArgs)

 Returns: Void
******************************************************************************/
	private void WinFileInfo_activate (Object source, EventArgs e)
	{
	}

/*****************************************************************************
 Function:     buttonFind_click

 Abstract:     Invoked when the "Find" button is clicked. 
			
 Input Parameters: source(Object), e(EventArgs)

 Returns: Void
******************************************************************************/
	private void buttonFind_click(Object source, EventArgs e)
	{
		Console.WriteLine("Find Button clicked!!!");
		Console.WriteLine (wndFileName.Text);
		
		bool bFileExists = File.Exists(wndFileName.Text);
		
		if (bFileExists)
		{
			wndFileExistCheck.Checked = true;
			Console.WriteLine ("File found");
			FileInfo myFile = new FileInfo(wndFileName.Text);
			String strDir = myFile.DirectoryName;
			DateTime dt = myFile.CreationTime;
			FileAttributes attribs = myFile.Attributes;
			wndLocation.Text = strDir;

			DumpFileAttributes ();

			if ((attribs & FileAttributes.Archive) == FileAttributes.Archive)
			{
				wndArchiveCheck.Checked = true;
			}

			if ((attribs & FileAttributes.ReadOnly) == FileAttributes.ReadOnly)
			{
				wndReadOnlyCheck.Checked = true;
			}

			if ((attribs & FileAttributes.Hidden) == FileAttributes.Hidden)
			{
				wndHiddenCheck.Checked = true;
			}

			// First get the time when file was created.
			DateTime timeFile = myFile.CreationTime;
			wndCreateTime.Text = (timeFile.GetDateTimeFormats('F'))[0];

			// Get the last access time.
			timeFile = myFile.LastAccessTime;
			wndLastAccessTime.Text = (timeFile.GetDateTimeFormats('F'))[0];

			// Get the last write time.
			timeFile = myFile.LastWriteTime;
			wndLastWriteTime.Text = (timeFile.GetDateTimeFormats('F'))[0];
		}
	}

///<summary>
///ButtonClose_Click Method:
///<para>
///This method is invoked when Close button on the dialog box is clicked.
///This method closes the application.
///</para>
///</summary>
/*****************************************************************************
 Function:     ButtonClose_Click

 Abstract:     Invoked when the "Close" button is clicked.
			
 Input Parameters: source(Object), e(EventArgs)

 Returns: Void
******************************************************************************/
	private void ButtonClose_Click(Object source, EventArgs e)
	{
		Application.Exit ();
	}

///<summary>
///Description for DumpFileAttributes method.
///Dumps the underlying values associated with various file
///attributes. The execution of this function is conditional.
///For this function to execute symbol NAVEEN_DEBUG needs to
///defined at the top of the file.
///</summary>
/*****************************************************************************
 Function:     DumpFileAttributes

 Abstract:     Dumps the underlying values associated with various file
			   attributes. The execution of this function is conditional.
			   For this function to execute symbol NAVEEN_DEBUG needs to
			   defined at the top of the file.
			
 Input Parameters: 

 Returns: Void
******************************************************************************/
	[Conditional("NAVEEN_DEBUG")] private void DumpFileAttributes ()
	{
		Console.WriteLine ("Dumping all File Attribute Values");
		Console.WriteLine (FileAttributes.Archive);
		Console.WriteLine (FileAttributes.Compressed);
		Console.WriteLine (FileAttributes.Directory);
		Console.WriteLine (FileAttributes.Encrypted);
		Console.WriteLine (FileAttributes.Hidden);
		Console.WriteLine (FileAttributes.Normal);
		Console.WriteLine (FileAttributes.NotContentIndexed);
		Console.WriteLine (FileAttributes.Offline);
		Console.WriteLine (FileAttributes.ReadOnly);
		Console.WriteLine (FileAttributes.ReparsePoint);
		Console.WriteLine (FileAttributes.SparseFile);
		Console.WriteLine (FileAttributes.System);
		Console.WriteLine (FileAttributes.Temporary);
	}

/*****************************************************************************
 Function:     Main

 Abstract:     Entry point into application.
			
 Input Parameters: 

 Returns: void

******************************************************************************/
	public static void Main ()
	{
		Application.Run (new WinFileInfo ());
	}

	//-------------------------------------------------
    // We need to import the Win32 API calls used to deal with
    // image loading.
    //-------------------------------------------------
    [DllImport("user32.dll")]
	public static extern int LoadIcon(int hinst, String name);
	[DllImport("user32.dll")]
    public static extern int DestroyIcon(int hIcon);
	[DllImport("user32.dll")]
	public static extern int LoadImage(int hinst, String lpszName,  uint uType, int cxDesired, int cyDesired, uint fuLoad);
    [DllImport("gdi32.dll")]
    public static extern int DeleteObject(int hObject);
}

Image002.jpg [ 20.6 KiB | Viewed 5724 times ]