C# Discussion Boards - CodeProject

24-Mar-09 21:37

You may use the DataGridViewImageColumn to add a small picture and write a delegate to open a file you wish to open, when the picture is clicked.

Otherwise physically attaching a file is only valid in e-mail and other messaging services...

Have a Happy Coding.....

ListView in C#

mrithula824-Mar-09 20:00

24-Mar-09 20:00

Hi I am using this code to list the files in ListView control.When i try to add the files to the listview control using

listView1.Items.Add(fil2.ToString());

it gives me only one file i.e the last file in the folder.What change should i do to list all the files in that folder?Please help me with this

amespace WindowsApplication30
{
    public partial class Form1 : Form
    {
        XmlTextReader reader;
        XmlDocument doc = new XmlDocument();
        ColumnHeader colHead;
        String sss = "";
        //private System.Windows.Forms.ListView lwFilesAndFolders;
        public Form1()
        {
            InitializeComponent();
        }

        private void ListDrives_Click(object sender, EventArgs e)
        {
            string[] drives = Environment.GetLogicalDrives();
            // Loop into the string array
            foreach (string strDrive in drives)
            {
                // Add items (drives) to the list
                listBox1.Items.Add(strDrive.ToString());
            }
        }

        private void ShowPath_Click(object sender, EventArgs e)
        {
            CreateHeadersAndFillListView();
            PaintList(sss);
        }

        private void CreateHeadersAndFillListView()
        {
            colHead = new ColumnHeader();
            colHead.Text = "Servers";
            colHead.Width = 200;
            listView1.Columns.Add(colHead);

            colHead = new ColumnHeader();
            colHead.Text = "Status";
            colHead.Width = 100;
            listView1.Columns.Add(colHead);

            colHead = new ColumnHeader();
            colHead.Text = "Last accessed";
            colHead.Width = 100;
            listView1.Columns.Add(colHead);            
        }

        private void PaintList(String sss)
        {
            try
            {
                //ListViewItem lvi;
                //ListViewItem.ListViewSubItem lvsi;
                reader = new XmlTextReader("path.xml");
               
                while (reader.Read())
                {
                    switch (reader.NodeType)
                    {
                        case XmlNodeType.Text: //Display the text in each element.
                            //   Console.WriteLine(reader.Value);
                            String s1;
                            s1 = reader.Value;
                            String ss;
                            ss = listBox1.SelectedItem.ToString();
                            sss = ss + s1;
                            object o3 = (object)sss;
                            //String s = (string)o3;
                            //listBox2.Items.Add(o3);

                            DirectoryInfo dire = new DirectoryInfo(sss);
                            if (dire.Exists)
                            {
                                String[] folder;
                                folder = Directory.GetDirectories(sss);
                                foreach (string foldername in folder)
                                {
                                    DirectoryInfo di = new DirectoryInfo(foldername);
                                    if (di.Exists)
                                    {
                                        String[] files;
                                        files = Directory.GetFiles(foldername);
                                        listView1.Items.Clear();

                                        //this.listView1.BeginUpdate();

                                        foreach (String filename in files)
                                        {
                                            FileInfo fil2 = new FileInfo(filename);
                                            listView1.Items.Add(fil2.ToString());
                                           
                //lvi = new ListViewItem(fil2.ToString());
               //   lvi = new ListViewItem(ssfil2);
              //    //lvi.Text = fil2.Name.ToString();
             //   listView1.Items.Add(lvi);
            //}
            //lvi.ImageIndex = 0;
                                            //lvi.Tag = fil2.FullName;

               //lvsi = new ListViewItem.ListViewSubItem();
                                            //lvsi.Text = "sub item";
                                            //lvi.SubItems.Add(lvsi);

                  //lvsi = new ListViewItem.ListViewSubItem();
                     //lvsi.Text = di.LastAccessTime.ToString();
                                            //lvi.SubItems.Add(lvsi);

                                            //this.listView1.Items.Add(lvi);
                                        }}}}
                                   break;}}
                 
               // this.listView1.EndUpdate();
            }
            catch (System.Exception err)
            {
                MessageBox.Show("Error: " + err.Message);
            }   }} }

Christian Graus24-Mar-09 20:25

Christian Graus

24-Mar-09 20:25

What happens when you step through the code ?

Christian Graus

Driven to the arms of OSX by Vista.

mrithula824-Mar-09 20:56

24-Mar-09 20:56

Hi fil2 contains the list of all the files.If i use listBox.Items.Add(fil2.Tostring()); it dis[plays the list of files in the listbox.But i want to display in the listview control.I have added column headers to the listview control.I want to display the names of the files under the header named "Servers".

foreach (String filename in files)
                                        {
                                            FileInfo fil2 = new FileInfo(filename);
                                            foreach (String sfil in fil2)
                                            {
                                                listView1.Items.Add(sfil);
                                                
                                            }

This gives me name of only the last file in that folder.

King Julien24-Mar-09 21:23

24-Mar-09 21:23

To add an item in ListView control you should supply the listitem.

This may work....
Modify your code like this and try....

foreach (String filename in files)
{
  FileInfo fil2 = new FileInfo(filename);
  
  foreach (String sfil in fil2)
  {
    ListViewItem listitem = new ListViewItem();
    listitem.SubItems.Add(sfil);
    listView1.Items.Add(listitem);
  }
}

Have a Happy Coding.....

mrithula824-Mar-09 21:36

24-Mar-09 21:36

Hi Thanks for the reply.i tried with this, but it shows me an error for the line

foreach (String sfil in fil2)

saying that the foreach cannot be applied to FileInfo.So i tried without the foreach

foreach (String filename in files)
                                       {
                                           FileInfo fil2 = new FileInfo(filename);
                                           lvi = new ListViewItem();
                                           lvi.Text = filename.ToString();
                                           listView1.Items.Add(lvi);}

In any way im getting only the last file in the folder.The following gets the files from the folder.I do not know how to display it in the listview control.

DirectoryInfo di = new DirectoryInfo(foldername);
                                    if (di.Exists)
                                    {
                                        String[] files;
                                        files = Directory.GetFiles(foldername);

King Julien24-Mar-09 23:00

24-Mar-09 23:00

Hi mrithula....

I have personally checked the below code and its working properly in my machine....

DirectoryInfo di = new DirectoryInfo(fbd.SelectedPath);
 if (di.Exists)
 {
   String[] files;
   files = Directory.GetFiles(fbd.SelectedPath);
   foreach (string file in files)
   {
     ListViewItem lvi = new ListViewItem();
     lvi.Text = file;
     lvi.ImageIndex = 0;
     listView1.Items.Add(lvi);
   }
 }

If it shows any error let me know....

Have a Happy Coding.....

mrithula825-Mar-09 0:11

25-Mar-09 0:11

Hi Thank you.Im getting it right now

King Julien25-Mar-09 0:55

25-Mar-09 0:55

"Ella Pugazhum iraivan oruvanukkae"

Have a Happy Coding.....

mrithula825-Mar-09 19:25

25-Mar-09 19:25

Hi I am able to list all the exe files in listView control.If the 1st exe has started i want to set the status of the ist sub item to "Started"

foreach(Process pr in proclist)
           {
               String proname = pr.ProcessName;
               //listBox4.Items.Add(proname);
               lvsi=new ListViewItem.ListViewSubItem();
               lvsi.Text="Started...";
               lvi.SubItems.Add(lvsi);
           }

           int b = proclist.Count;
           listBox4.Items.Add(b.ToString());

proclist contains the list of all exe that have started.Currently there is only 1 exe(i.e the 1st one in the listview control).I want to display started to the 1st subitem.The above code that im using displays "started" as the last sub item.How can i change this?

King Julien25-Mar-09 20:08

25-Mar-09 20:08

when you add the subitem for an item in the listview the sequence starts always from left to right.
Not sure what mistake you are doing.

But you can try this...

To add the subitem, for the STATUS column header, use the same item object which you used to add to the listview control.

i.e.
if item 1 in the Server header is added by using lvi then,

ListviewItem lvi = new ListViewItem();
lvi.SubItem.Add("Started");
ListView.Items.Add(lvi);

This should work i believe.

Have a Happy Coding.....

mrithula825-Mar-09 20:18

25-Mar-09 20:18

Hi I tried with this but it displays "Started.." as a subitem for the last item in listview control.I used this code in the button click event of "Start" button which starts the exe file.

King Julien25-Mar-09 20:49

25-Mar-09 20:49

okay.....

then you may try the SubItem index property, to directly specify which subitem to modify.

for example,

if you want to change the status of the first server Item, then

ServerItem1.SubItems[1].text = "Started";

Have a Happy Coding.....

mrithula825-Mar-09 21:08

25-Mar-09 21:08

Hi I tried with this.Is this right?Nothing gets displayed when the exe starts.

int g = lvi.Index;

               lvi = new ListViewItem();

               if (g == 1)
                   lvi.SubItems[1].Text = "Started..";

               listView1.Items.Add(lvi);

King Julien25-Mar-09 21:30