Re: Shell Programming - MY CODE! - C# Discussion Boards

Re: Shell Programming - Loading a file selected on list view component

10-Oct-08 4:34

Hello folks!!!

I have a serious problem. I´making a "file explorer" in C# and it has to set a root node from an external HDD and show only files and folders hierarchically down it. This I´ve done and it´s working "fine"... with some problems but working!

The major problem is that I´ve to load a file by double clicking it on the list view (DWGs MUST open with AutoCAD, DOCs and Spreadsheets MUST open with MS Ofiice, Pictures must open with paint and whatever!) I know that I need to use ShellAPI BUT I´m having problems to use it properlly... I´ve been reading some HotTo´s, articles, walkthroughs (including C# does Shell) but none answer my question especifically.....

Can some one please help me? I´m desperate!!!!

thanks

PS. I´m using framework 1.1/2.0 with .NET 2003

DaveyM6910-Oct-08 4:59

Re: Shell Programming - Loading a file selected on list view component [modified]

10-Oct-08 4:59

Do you have to use the shell? if so, there's a cool article on here somewhere if you search.

Any reason why you can't just use System.Diagnosics.Process.Start(pathToFile); ?

[Edit]Check out the articles by arikp[^]

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Gianpaolo Barci10-Oct-08 5:07

Re: Shell Programming - Loading a file selected on list view component

10-Oct-08 5:07

Dave,

I tried but the namespace doesn´t exists....

I´m using VisualStudio 2003!!!

I think I can´t avoid shell....

modified on Friday, October 10, 2008 11:13 AM

Dave Kreskowiak10-Oct-08 5:22

Dave Kreskowiak

10-Oct-08 5:22

Yes, it does exists, and has since .NET 1.0.

What does your code look like??

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Gianpaolo Barci10-Oct-08 6:12

10-Oct-08 6:12

I´ll try to explain my code while my poor English let :P!! It´s a file manager (a TreeView and a ListView). The Tree View shows only FOLDERS and List View only FILES. A file manager similar to Windows explorer but with a RootNode set to an especific folder on an external HD. Only the Root node and subnodes are visible. This I´ve done but not working properlly... just working...
The problem I´m having is to load the program by double-clicking on the file in the ListView.

The code is shown down

using System;
using System.Drawing;
using System.Collections;
using System.Diagnostics;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Management;
using System.Globalization;

namespace Painel_de_Controle_ETECH
{
	public class Workspace : System.Windows.Forms.Form
	{
		private System.Windows.Forms.TreeView tvFolders;
		private System.Windows.Forms.ImageList m_imageListTreeView;
		private System.Windows.Forms.ToolBar toolBar1;
		private System.Windows.Forms.Splitter splitter1;
		private System.Windows.Forms.ListView lvFiles;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Button button1;
		private System.ComponentModel.IContainer components;

		 

		public Workspace()
		{
			InitializeComponent();
			
			//Metodo para preencher a tvFolder
			PopulateDriveList();
		}

		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(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.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Workspace));
			this.tvFolders = new System.Windows.Forms.TreeView();
			this.m_imageListTreeView = new System.Windows.Forms.ImageList(this.components);
			this.toolBar1 = new System.Windows.Forms.ToolBar();
			this.splitter1 = new System.Windows.Forms.Splitter();
			this.lvFiles = new System.Windows.Forms.ListView();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// tvFolders
			// 
			this.tvFolders.Dock = System.Windows.Forms.DockStyle.Left;
			this.tvFolders.ImageList = this.m_imageListTreeView;
			this.tvFolders.Location = new System.Drawing.Point(0, 32);
			this.tvFolders.Name = "tvFolders";
			this.tvFolders.Size = new System.Drawing.Size(168, 360);
			this.tvFolders.TabIndex = 2;
			this.tvFolders.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.tvFolders_AfterSelect);
			// 
			// m_imageListTreeView
			// 
			this.m_imageListTreeView.ImageSize = new System.Drawing.Size(16, 16);
			this.m_imageListTreeView.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("m_imageListTreeView.ImageStream")));
			this.m_imageListTreeView.TransparentColor = System.Drawing.Color.Transparent;
			// 
			// toolBar1
			// 
			this.toolBar1.AutoSize = false;
			this.toolBar1.DropDownArrows = true;
			this.toolBar1.Location = new System.Drawing.Point(0, 0);
			this.toolBar1.Name = "toolBar1";
			this.toolBar1.ShowToolTips = true;
			this.toolBar1.Size = new System.Drawing.Size(602, 32);
			this.toolBar1.TabIndex = 0;
			// 
			// splitter1
			// 
			this.splitter1.Location = new System.Drawing.Point(168, 32);
			this.splitter1.Name = "splitter1";
			this.splitter1.Size = new System.Drawing.Size(3, 360);
			this.splitter1.TabIndex = 5;
			this.splitter1.TabStop = false;
			// 
			// lvFiles
			// 
			this.lvFiles.Dock = System.Windows.Forms.DockStyle.Fill;
			this.lvFiles.Location = new System.Drawing.Point(171, 32);
			this.lvFiles.Name = "lvFiles";
			this.lvFiles.Size = new System.Drawing.Size(431, 360);
			this.lvFiles.TabIndex = 0;
			this.lvFiles.View = System.Windows.Forms.View.Details;
			// 
			// textBox1
			// 
			this.textBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
			this.textBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textBox1.Location = new System.Drawing.Point(312, 8);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(200, 20);
			this.textBox1.TabIndex = 6;
			this.textBox1.Text = "";
			// 
			// button1
			// 
			this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
			this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.button1.Location = new System.Drawing.Point(520, 8);
			this.button1.Name = "button1";
			this.button1.TabIndex = 7;
			this.button1.Text = "Refinar...";
			// 
			// Workspace
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(602, 392);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.textBox1);
			this.Controls.Add(this.lvFiles);
			this.Controls.Add(this.splitter1);
			this.Controls.Add(this.tvFolders);
			this.Controls.Add(this.toolBar1);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
			this.Name = "Workspace";
			this.ShowInTaskbar = false;
			this.Text = "Workspace";
			this.ResumeLayout(false);

		}
		#endregion

		


		#region Pupulate

		//Este método busca no banco de dados do sistema a lista de drives e exibe apenas os discos locais

		#region Criar DriveList
		private void PopulateDriveList()
		{
			//TreeNode nodeRoot;
			TreeNode nodeTreeNode;
			int imageIndex = 0;
			int selectIndex = 0;

			const int LocalDisk = 3;

			this.Cursor = Cursors.WaitCursor;
			//clear TreeView
			tvFolders.Nodes.Clear(); //limpa tvFolders.Nodes
			nodeTreeNode = new TreeNode("My Computer",0,0); //nodeTreeNode apontará para my computer
			/* Note que tvFolders ainda não exibe o nó! Isso ocorre para que ele não exiba o nó MyComputer */
			//Get Drive list
			ManagementObjectCollection queryCollection = getDrives(); //inicia-se a busca pelos drives
			foreach ( ManagementObject mo in queryCollection) //pra cada um deles encontrado
			{
			    //GET DRIVES TYPE (CDs, FLOPPIES...) but this will get only the Local drives...
				switch (int.Parse( mo["DriveType"].ToString())) //mo["DriveType"] receberá um parâmetro dos adaixo
				{
					case LocalDisk:			//Local drives.. O HD externo é estranhamente reconhecido como LocalDrive
						imageIndex = 6;
						selectIndex = 6;
						break;
					
					default:				//defalut to folder
						imageIndex = 2;
						selectIndex = 3;
						break;
				}
				//If the drive found is a Local Drive and it´s not C: then it will be shown (because the drive I want isn´t C:)
				if(int.Parse( mo["DriveType"].ToString()) == LocalDisk && mo["Name"].ToString() != "C:" )//you can set to show C: again if you wish to test it.
				{	
					//this will set to show (poorly) f:\Painel de Controle ETECH\Projetos ETECH as root
					nodeTreeNode = new TreeNode(mo["Name"].ToString() + "\\Painel de Controle ETECH\\Projetos ETECH",imageIndex,selectIndex); //nodeTreeNode receberá o nome do mesmo
					tvFolders.Nodes.Add(nodeTreeNode); //AGORA SIM o tvFolders exibirá o nó! (and then show the node on TreeView)
					
					//add nodeCollection
					TreeNodeCollection nodeCollection = nodeTreeNode.Nodes;
					nodeTreeNode.Expand(); //I´d like to show the root expanded (but it still appears collapsed...)
				}
			}


			//Init files ListView
			InitListView();   //lvFiles exibirá os arquivos.

			this.Cursor = Cursors.Default;

		}
		#endregion

		//Este método preenche a tvFolders com as pastas e subpastas
   		#region Preencher tvFolder
		private void tvFolders_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e)
		{
			//Populate folders and files when a folder is selected
			this.Cursor = Cursors.WaitCursor;

			//get current selected drive or folder
			TreeNode nodeCurrent = e.Node;

			//clear all sub-folders
			nodeCurrent.Nodes.Clear();

			if (nodeCurrent.SelectedImageIndex == 0) 
			{
				//Selected My Computer - repopulate drive list
				PopulateDriveList();
				//PopulateDirectory(nodeCurrent, nodeCurrent.Nodes);
			}
			else 
			{
				//populate sub-folders and folder files
				PopulateDirectory(nodeCurrent, nodeCurrent.Nodes);

			}
			this.Cursor = Cursors.Default;
		}
		#endregion

		//Este método apenas inicia lvFiles
		#region Iniciar lvFiles
		protected void InitListView()
		{
			//init ListView control
			lvFiles.Clear();		//clear control
			//create column header for ListView
			lvFiles.Columns.Add("Name",150,System.Windows.Forms.HorizontalAlignment.Left);
			lvFiles.Columns.Add("Size",75, System.Windows.Forms.HorizontalAlignment.Right);
			lvFiles.Columns.Add("Created", 140, System.Windows.Forms.HorizontalAlignment.Left);
			lvFiles.Columns.Add("Modified", 140, System.Windows.Forms.HorizontalAlignment.Left);

		}
		#endregion

		//Método que busca subdiretórios do nó para exibir no tvFolder
		#region Busacar Diretórios
		protected void PopulateDirectory(TreeNode nodeCurrent, TreeNodeCollection nodeCurrentCollection)
		{
			TreeNode nodeDir;
			int imageIndex = 2;		//unselected image index
			int selectIndex = 3;	//selected image index

			if (nodeCurrent.SelectedImageIndex != 0) 
			{
				//populate treeview with folders
				try
				{
					//check path
					if(Directory.Exists(getFullPath(nodeCurrent.FullPath)) == false)
					{
						MessageBox.Show("Directory or path " + nodeCurrent.ToString() + " does not exist.");
					}
					else
					{
						//populate files
						PopulateFiles(nodeCurrent);

						string[] stringDirectories = Directory.GetDirectories(getFullPath(nodeCurrent.FullPath));
						string stringFullPath = "";
						string stringPathName = "";

						//loop throught all directories
						foreach (string stringDir in stringDirectories)
						{
							stringFullPath = stringDir;
							stringPathName = GetPathName(stringFullPath);
							
							//create node for directories
							nodeDir = new TreeNode(stringPathName.ToString(),imageIndex,selectIndex);
							nodeCurrentCollection.Add(nodeDir);
						}
					}
				}
				catch (IOException e)
				{
					MessageBox.Show("Error: Drive not ready or directory does not exist.");
				}
				catch (UnauthorizedAccessException e)
				{
					MessageBox.Show("Error: Drive or directory access denided.");
				}
				catch (Exception e)
				{
					MessageBox.Show("Error: " + e);
				}
			}
		}
		#endregion

		//Este método pega o NOME dos diretórios e subdiretórios
		#region Nome dos Diretórios
		protected string GetPathName(string stringPath)
		{
			//Get Name of folder
			string[] stringSplit = stringPath.Split('\\');
			int _maxIndex = stringSplit.Length;
			return stringSplit[_maxIndex-1];
		}
		#endregion

		//Este método busca os arquivos do diretório para carrega-los no lvFiles
		#region Buscar Arquivos
		protected void PopulateFiles(TreeNode nodeCurrent)
		{
			//Populate listview with files
			string[] lvData =  new string[4];
			
			//clear list
			InitListView();

			if (nodeCurrent.SelectedImageIndex != 0) 
			{
				//check path
				if(Directory.Exists((string) getFullPath(nodeCurrent.FullPath)) == false)
				{
					MessageBox.Show("Directory or path " + nodeCurrent.ToString() + " does not exist.");
				}
				else
				{
					try
					{
						string[] stringFiles = Directory.GetFiles(getFullPath(nodeCurrent.FullPath));
						string stringFileName = "";
						DateTime dtCreateDate, dtModifyDate;
						Int64 lFileSize = 0;

						//loop throught all files
						foreach (string stringFile in stringFiles)
						{
							stringFileName = stringFile;
							FileInfo objFileSize = new FileInfo(stringFileName);
							lFileSize = objFileSize.Length;
							dtCreateDate = objFileSize.CreationTime; //GetCreationTime(stringFileName);
							dtModifyDate = objFileSize.LastWriteTime; //GetLastWriteTime(stringFileName);

							//create listview data
							lvData[0] = GetPathName(stringFileName);
							lvData[1] = formatSize(lFileSize);
							
							//check if file is in local current day light saving time
							if (TimeZone.CurrentTimeZone.IsDaylightSavingTime(dtCreateDate) == false)
							{
								//not in day light saving time adjust time
								lvData[2] = formatDate(dtCreateDate.AddHours(1));
							}
							else
							{
								//is in day light saving time adjust time
								lvData[2] = formatDate(dtCreateDate);
							}

							//check if file is in local current day light saving time
							if (TimeZone.CurrentTimeZone.IsDaylightSavingTime(dtModifyDate) == false)
							{
								//not in day light saving time adjust time
								lvData[3] = formatDate(dtModifyDate.AddHours(1));
							}
							else							
							{
								//not in day light saving time adjust time
								lvData[3] = formatDate(dtModifyDate);
							}


							//Create actual list item
							ListViewItem lvItem = new ListViewItem(lvData,0);
							lvFiles.Items.Add(lvItem);

							
						}
					}
					catch (IOException e)
					{
						MessageBox.Show("Error: Drive not ready or directory does not exist.");
					}
					catch (UnauthorizedAccessException e)
					{
						MessageBox.Show("Error: Drive or directory access denided.");
					}
					catch (Exception e)
					{
						MessageBox.Show("Error: " + e);
					}
				}
			}
		}
		#endregion

		//Este método pega o caminho dos diretórios e subdiretórios
		#region Pegar Caminho
		protected string getFullPath(string stringPath)
		{
			//Get Full path
			string stringParse = "";
			//remove My Computer from path.
			stringParse = stringPath.Replace("My Computer", "");

			return stringParse;
		}
		#endregion

		//Este método pega no banco de dados do sistema as informações sobre os dispositivos (drives)
		#region Buscar Lista de Drives
		protected ManagementObjectCollection getDrives()
		{
			//get drive collection
			ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT * From Win32_LogicalDisk ");
			ManagementObjectCollection queryCollection = query.Get();
			
			return queryCollection;
		}
		#endregion

        //Este método pega a data dos arquivos no sistema e é carregado por populateFiles
		#region Pegar Data
		protected string formatDate(DateTime dtDate)
		{
			//Get date and time in short format
			string stringDate = "";

			stringDate = dtDate.ToShortDateString().ToString() + " " + dtDate.ToShortTimeString().ToString();

			return stringDate;
		}
		#endregion

		//Este método converte os tamanhos dos aquivos para KB e é chamado por populateFiles
		#region Converter tamanho para KB
		protected string formatSize(Int64 lSize)
		{
			//Format number to KB
			string stringSize = "";
			NumberFormatInfo myNfi = new NumberFormatInfo();

			Int64 lKBSize = 0;

			if (lSize < 1024 ) 
			{
				if (lSize == 0) 
				{
					//zero byte
					stringSize = "0";
				}
				else 
				{
					//less than 1K but not zero byte
					stringSize = "1";
				}
			}
			else 
			{
				//convert to KB
				lKBSize = lSize / 1024;
				//format number with default format
				stringSize = lKBSize.ToString("n",myNfi);
				//remove decimal
				stringSize = stringSize.Replace(".00", "");
			}

			return stringSize + " KB";

		}
		#endregion

		#endregion

		#region Eventos de Shell

		#region Executar Arquivo
		private void executeFile() //This is the shell command I was trying to implement on mey code
		{
			ShellLib.ShellExecute shellExecute = new ShellLib.ShellExecute();
			shellExecute.Path = @"C:\Arquivos de programas\AutoCAD 2008\acad.exe";
			shellExecute.Execute();
		}
		#endregion

		//protected string getFilePath(string strFilePath)
	//	{
		
		//}

		#endregion
	}
}

Just ignore the comments in portuguese!! I translated some important lines to english!!!

If anyone could helpme I will be VERY pleased!!! very very very pleased!!! I will thank my whole life!!!!

Dave Kreskowiak10-Oct-08 6:49

Dave Kreskowiak

10-Oct-08 6:49

NOT THE WHILE BLOODY THING!! Just the part where you're having the problem launching files!

Thankfully, that part is at the end of the file. Noone is going to go looking through all that code for a small part...

Your executeFile method just needs to do something like:

Process.Start(filepath)

Because the Shell interpret spaces as a delimiter, it's a good idea to enclose filepaths in double quotes.

Process.Start(String.Format("\"{0}\"", filepath))

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Gianpaolo Barci10-Oct-08 7:00

10-Oct-08 7:00

hahahahahaha sorry for that, my mistake Smile | :)

!!!!

It was just if you wanted to to test it!!! So I showed the whole thing!!!!

Well, as you can see I´m bloody new on c# and .net!!! The other question is where I call the executeFile method???

but the complier is still yelling me that System.Diagnosics.Process namespace doesn´t exists!!!

There is something else I should do?

Thanks!!! I really appreciate the whole support you are giving me!!!

DaveyM6910-Oct-08 7:45

10-Oct-08 7:45

Oops - that might be because of a typo in my earlier post!

Diagnosics should be
Diagnostics (missed the 't') Blush | :O

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Gianpaolo Barci10-Oct-08 7:56

10-Oct-08 7:56

hehehehehehehe no problem dude!!!!

just one last question... on the header of the code a put just

using System.Diagnostics;

??? because System.Diagnostic.Process is unrecognized too : /

Smile | :)

Thank you dudes.. I really owe you one!!!!

DaveyM6910-Oct-08 8:25

10-Oct-08 8:25

In 'using's at the top of your file you can only put namespaces.

Process is a class within System.Diagnostics so it can't be put in the using (and of course Start is a method of that class).

For future reference, typos like that happen quite regularly. If something's not found there's several ways to find the error.

1. Type the line letter by letter until intellisense kicks in, and see if what you need is in the list (spelled correctly!).
2. Use the Object Browser and search for the class and/or method, or alternatively, browse from the base namespace. This can be good for finding out if there are any references you need to add to your project too.
3. Paste it into google, if there is a typo, at the top of the first page of search results there will normally be a suggested correct spelling.

The first two have the added benifit of showing you all the other stuff in that namespace/class that you wouldn't have known about otherwise. You can learn loads of new stuff by browsing around in there.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Dave Kreskowiak10-Oct-08 8:27

Dave Kreskowiak

10-Oct-08 8:27

Then you just use Process, not System.Diagnostics.Process.
The using statement at the top frees you from haing to type the entire qualifier.

As for where you call the execute statement, that's up to your design! Though, having looked at the entire code you posted, you don't have any code doing anything with the files in the listview after the listview is populated. So, I have no idea what you expect the user to do to launch a file. What happens there is totally up to you.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Gianpaolo Barci10-Oct-08 9:34

10-Oct-08 9:34

Yeah! That´s where I´m placing the method executeFile. I´ll call by an event like listView_Click or eiter the listView_SelectedIndex

The code to populate I found here at CP and with a few changes I made it point to an expecific folder to be the root (just basic programming and basic O.O. concepts). My professors at college helped me a little because they are not quite familiar with .NET Framework. Even I got more familiarity with Assemble Languages and Structured C/Pascal... and few notions of O.O C++ and Objective C(Mac) (I HATE JAVA). I´m still junior in .NET but I´m trying!!!! I almost did it... just a few errors!!!

I appreciate all the help!!! I owe you guys a beer!!!!
Thanks

DaveyM6910-Oct-08 11:27

10-Oct-08 11:27

Having one on you right now Beer | [beer]

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

moving 2.0 to 3.0 and up

netJP12L10-Oct-08 4:28

netJP12L

10-Oct-08 4:28

I have Visual Studio 2005 with Framework 2.0 installed in my machine. Can I use Framework 3.0 or 3.5 with Vistual Studio 2005. Or do you think that I need to have Visual Studio 2008 to work with 3.0 and 3.5. And also is Framework 3.5 is out or is that still in its Beta version.
Thanks

DaveyM6910-Oct-08 4:34

10-Oct-08 4:34

netJP12L wrote:
Can I use Framework 3.0 or 3.5 with Vistual Studio 2005

Yes. A google search will lead you to the correct MS pages to download what you need.

netJP12L wrote:
is Framework 3.5 is out

Yes, has been for some time.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

netJP12L10-Oct-08 4:40

netJP12L

10-Oct-08 4:40

thanks for answering. i am scared upgrading from 2.0 or 3.5 in my existing vs 2005 as it may corrupt something. do you think this possibility. Why microsoft is releasing their framwork so often. It's getting very tough to catch up and live up the with one framwork atleast for a while.

DaveyM6910-Oct-08 4:52

10-Oct-08 4:52

3.0 and 3.5 live in addition to 2.0 so you can still use 2.0 if you like. In fact, VS2008 gives you the option of which of these frameworks you'd like to use on the New Project screen.

If you go for it you'll be able to play with LINQ, extension methods, WPF etc... That's why they added the new frameworks - new stuff/toys to play with Big Grin | :-D

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)

Colin Angus Mackay10-Oct-08 12:51

Colin Angus Mackay

10-Oct-08 12:51

netJP12L wrote:
i am scared upgrading from 2.0 or 3.5 in my existing vs 2005 as it may corrupt something. do you think this possibility.

It is possible but unlikely. That's what backups are for.

2005 to 2008 upgrade is a lot easier than 2003 to 2005 especially as VS2008 supports multi-targetting. That means that in VS2008 you can specify what version of the .NET Framework you want to use in your project.

netJP12L wrote:
Why microsoft is releasing their framwork so often.

Jeez, if you think that is bad you should have been around when MFC was at its height (late 90s). MS were releasing a new version of that every few months at one point.

.NET 3.0 and 3.5 are purely additive. In otherwords they don't make changes to bits released in previous versions. (Unlike 1.1 to 2.0)

That means that if you know .NET 2.0 then you are not required to learn anything new unless you want to.

netJP12L wrote:
It's getting very tough to catch up and live up the with one framwork atleast for a while.

Then concentrate on the areas you will find useful. I try and take a high level view of everything so I know what is out there. Then I drill down into what I need when I need it. I find that I can ramp up to a new part of the framework fairly quickly because I already know what it is for and what it does, I just need to learn the detail.

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