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how to add item in listview control

Anupam Mishra 1785 17-Jan-2016
Hi all,
i want to use list view  to display item in windows form. Please give me a suitable example to display content as dynamic.
thank you .
c# c#  .net 
Updated on 18-Jan-2016
Anupam Mishra

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1 Answers

Anupam Mishra

Anupam Mishra

18-Jan-2016

I have a listview in C# with four columns and add an item with a specified directory (i.e. c or other drive). I have done it like this and it seems to work:

public Form1()
        {
            InitializeComponent();
            listView1.View = View.Details;
            listView1.GridLines = true;
            listView1.FullRowSelect = true;
                  // for adding column in listview  
            listView1.Columns.Add("Index", 60);
            listView1.Columns.Add("File Name", 300);
            listView1.Columns.Add("Size", 100);
            listView1.Columns.Add("Readonly", 70);
            int i = 1;
              // Get all text files of specified directory to add
a listview
            string[] filePaths = Directory.GetFiles(@"D:\\Anupam
Mishra",  "*.txt",         SearchOption.AllDirectories);
            foreach (var item in filePaths)
            {
                long len = new FileInfo(item.ToString()).Length;
                String name = new FileInfo(item.ToString()).Name;
              // for adding item in listview  
                ListViewItem _item = new ListViewItem();
                _item.Text = i.ToString();
                _item.SubItems.Add(name);
               
_item.SubItems.Add(BytesToString(len));
               
_item.SubItems.Add(filePaths.IsReadOnly.ToString());
                 // adding item in listview
                listView1.Items.Add(_item);
                i++;
            }
        }

 for checking the file size we create a new function BytesToString(double) as below:

It returns total size and unit of file size. 

  static String BytesToString(long byteCount)
        {
            string[] _unit = { "Byte", "KB", "MB", "GB", "TB", "PB", "EB" };
            if (byteCount == 0)
                return "0" + _unit [0];
            long bytes = Math.Abs(byteCount);
            int place = Convert.ToInt32(Math.Floor(Math.Log(bytes, 1024)));
            double num = Math.Round(bytes / Math.Pow(1024, place), 1);
            return (Math.Sign(byteCount) * num).ToString() + " "+_unit [place];
        }

It runs where user click on the button and display current selected row data. Code as follow:

private void button1_Click(object sender, EventArgs e)
        {
            string _filePath = null;
            string Size = null;
            string ro = null;
            try
            {
              // When we selected any row
                _filePath =listView1.SelectedItems[0].SubItems[1].Text;
                Size =listView1.SelectedItems[0].SubItems[2].Text;
                ro =listView1.SelectedItems[0].SubItems[3].Text;
                MessageBox.Show(_filePath + "," + Size + "," + ro);
            }
            catch (Exception)
            {
                MessageBox.Show("Please select the atleast one file");
            }
        }

Output:

MindStick Training
MindStick Training

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