Shell Programming - Loading a file selected on list view component

[Dave Kreskowiak]

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 Barci]

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
	/// /// Required method for Designer support - do not modify
	/// the contents of this method with the code editor.
	/// 
	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.Lef

[Dave Kreskowiak]

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 Barci]

hahahahahaha sorry for that, my mistake :)!!!! 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!!!

[DaveyM69]

Oops - that might be because of a typo in my earlier post! Diagnosics should be Diagnostics (missed the 't') :-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 Barci]

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 : / :) Thank you dudes.. I really owe you one!!!!

[DaveyM69]

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 Kreskowiak]

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 Barci]

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

[DaveyM69]

Having one on you right now :beer: :-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)