How to fill a ListView?

Question

Dear all,

I'm a beginner in C#. Could anyone tell me how to fill a ListView?

Answer 1

Hi @BenTam-3003 ,Welcome to Microsoft Q&A,

For more information on the use of ListView, you can check out the official documentation: https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.listview?view=windowsdesktop-8.0

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace xxx
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            CreateMyListView();
        }
        private void CreateMyListView()
{
    // Create a new ListView control.
    ListView listView1 = new ListView();
    listView1.Bounds = new Rectangle(new Point(10,10), new Size(300,200));

    // Set the view to show details.
    listView1.View = View.Details;
    // Allow the user to edit item text.
    listView1.LabelEdit = true;
    // Allow the user to rearrange columns.
    listView1.AllowColumnReorder = true;
    // Display check boxes.
    listView1.CheckBoxes = true;
    // Select the item and subitems when selection is made.
    listView1.FullRowSelect = true;
    // Display grid lines.
    listView1.GridLines = true;
    // Sort the items in the list in ascending order.
    listView1.Sorting = SortOrder.Ascending;
                
    // Create three items and three sets of subitems for each item.
    ListViewItem item1 = new ListViewItem("item1",0);
    // Place a check mark next to the item.
    item1.Checked = true;
    item1.SubItems.Add("1");
    item1.SubItems.Add("2");
    item1.SubItems.Add("3");
    ListViewItem item2 = new ListViewItem("item2",1);
    item2.SubItems.Add("4");
    item2.SubItems.Add("5");
    item2.SubItems.Add("6");
    ListViewItem item3 = new ListViewItem("item3",0);
    // Place a check mark next to the item.
    item3.Checked = true;
    item3.SubItems.Add("7");
    item3.SubItems.Add("8");
    item3.SubItems.Add("9");

    // Create columns for the items and subitems.
    // Width of -2 indicates auto-size.
    listView1.Columns.Add("Item Column", -2, HorizontalAlignment.Left);
    listView1.Columns.Add("Column 2", -2, HorizontalAlignment.Left);
    listView1.Columns.Add("Column 3", -2, HorizontalAlignment.Left);
    listView1.Columns.Add("Column 4", -2, HorizontalAlignment.Center);

    //Add the items to the ListView.
    listView1.Items.AddRange(new ListViewItem[]{item1,item2,item3});

    // Create two ImageList objects.
    ImageList imageListSmall = new ImageList();
    ImageList imageListLarge = new ImageList();

    // Initialize the ImageList objects with bitmaps.
    //imageListSmall.Images.Add(Bitmap.FromFile("C:\\MySmallImage1.bmp"));
    //imageListSmall.Images.Add(Bitmap.FromFile("C:\\MySmallImage2.bmp"));
    //imageListLarge.Images.Add(Bitmap.FromFile("C:\\MyLargeImage1.bmp"));
    //imageListLarge.Images.Add(Bitmap.FromFile("C:\\MyLargeImage2.bmp"));

    //Assign the ImageList objects to the ListView.
    listView1.LargeImageList = imageListLarge;
    listView1.SmallImageList = imageListSmall;

    // Add the ListView to the control collection.
    this.Controls.Add(listView1);
    }
} }

Best Regards,

Jiale

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Answer 2

I have a GitHub repository dedicated to working with ListView. Which read data from SQL-Server database.

Below is one example

Backend

public List<Contact> GetOwnerContacts()
{
    mHasException = false;
    var ownerContacts = new List<Contact>();


    var selectStatement =
        @"
        SELECT   Cust.CustomerIdentifier ,
                 Cust.CompanyName ,
                 cont.FirstName ,
                 cont.LastName ,
                 PT.PhoneTypeDescription ,
                 CCD.PhoneNumber ,
                 Countries.CountryName
        FROM     Customers AS Cust
                 INNER JOIN dbo.Contact AS cont ON Cust.ContactIdentifier = 
                    cont.ContactIdentifier
                 INNER JOIN dbo.ContactContactDevices AS CCD ON cont.ContactIdentifier = 
                    CCD.ContactIdentifier
                 INNER JOIN dbo.PhoneType AS PT ON CCD.PhoneTypeIdenitfier = 
                    PT.PhoneTypeIdenitfier
                 INNER JOIN dbo.Countries ON Cust.CountryIdentfier = Countries.id
        WHERE    ( Cust.ContactTypeIdentifier = 7 )
        ORDER BY Cust.CompanyName;";


    using (var cn = new SqlConnection() { ConnectionString = ConnectionString })
    {
        using (var cmd = new SqlCommand() { Connection = cn })
        {
            try
            {
                cn.Open();

                cmd.CommandText = selectStatement;

                var reader = cmd.ExecuteReader();
                while (reader.Read())
                {
                    ownerContacts.Add(new Contact()
                    {
                        CustomerIdentifier = reader.GetInt32(0),
                        CompanyName = reader.GetString(1),
                        FirstName = reader.GetString(2),
                        LastName = reader.GetString(3),
                        PhoneTypeDescription = reader.GetString(4),
                        PhoneNumber = reader.GetString(5),
                        CountryName = reader.GetString(6)
                    }) ;
                }

            }
            catch (Exception e)
            {
                mHasException = true;
                mLastException = e;
            }
        }
    }

    return ownerContacts;
}

Frontend

private void Form1_Shown(object sender, EventArgs e)
{
    var dataOperations = new SqlInformation();
    var contacts = dataOperations.GetOwnerContacts();

    ownerContactListView.BeginUpdate();
    foreach (var contact in contacts)
    {

        ownerContactListView.Items.Add(
            new ListViewItem(contact.ItemArray)
            {
                Tag = contact.CustomerIdentifier
            });

    }

    ownerContactListView.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize);
    ownerContactListView.EndUpdate();

    // this is how to select the first item
    //ownerContactListView.FocusedItem = ownerContactListView.Items[0];
    //ownerContactListView.Items[0].Selected = true;

    /*
     * This is a hard coded example to find an item and ensure it's visible
     */
    var item = ownerContactListView.FindItemWithText("Santé Gourmet");

    if (item != null)
    {
        var index = ownerContactListView.Items.IndexOf(item);
        ownerContactListView.Items[index].Selected = true;
        ownerContactListView.EnsureVisible(index);
    }

    CountLabel.Text = $@"Row count: {ownerContactListView.Items.Count}";
    ActiveControl = ownerContactListView;
}

A Group example

Answer 3

You can get custom controls with DataSource property using nuget. https://www.nuget.org/packages/MvvmFx-BoundControls-WinForms

using System;
using System.Data;
using System.Windows.Forms;

public partial class Form1 : Form
{
    public Form1() {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e) {
        var dt = new DataTable();
        dt.Columns.Add("A");
        dt.Columns.Add("B");
        dt.Columns.Add("C");
        dt.Rows.Add("aaa", "bbb", "ccc");
        dt.Rows.Add("ddd", "eee", "fff");
        boundListView1.View = View.Details;
        boundListView1.DataSource = dt;
    }
}