zszq-trs/Tools/YLTestTool/Forms/FormSelectClient.cs

using System.Data;
using YLErp.Modules;

namespace YLErp.Forms
{
    public partial class FormSelectClient : Form
    {
        public FormSelectClient()
        {
            InitializeComponent();
        }

        public string SelectedClient { get; private set; }

        protected override void OnLoad(EventArgs e)
        {
            var clients = DataCacheProvider.GetClientDataSource().AsQueryable()
                .Select(n => new ListViewItem { Text = n.Name + "# " + n.id }).ToArray();
            listView1.Items.AddRange(clients);
        }

        private void btnSearch_Click(object sender, EventArgs e)
        {
            var search = tbSearch.Text.Trim();
            var query = DataCacheProvider.GetClientDataSource().AsQueryable();
            if (!string.IsNullOrEmpty(search))
            {
                query = query.Where(n => n.Name != null && n.Name.Contains(search));
            }
            var clients = query.Select(n => new ListViewItem { Text = n.Name + "# " + n.id }).ToArray();
            listView1.Items.Clear();
            listView1.Items.AddRange(clients);
        }

        private void btnSelect_Click(object sender, EventArgs e)
        {
            if (listView1.CheckedItems.Count > 0)
            {
                var si = listView1.CheckedItems[0];
                var index = si.Text.LastIndexOf("# ");
                SelectedClient = si.Text.Substring(0, index);
            }
            this.DialogResult = DialogResult.OK;
            this.Close();
        }

        private void listView1_ItemChecked(object sender, ItemCheckedEventArgs e)
        {
            if (!e.Item.Checked) return;

            if (!e.Item.Selected)
            {
                e.Item.Selected = true;
            }

            if (listView1.CheckedItems.Count > 1)
            {
                foreach (ListViewItem item in listView1.CheckedItems)
                {
                    if (item != e.Item)
                    {
                        item.Checked = false;
                    }
                }
            }
        }

        private void listView1_ItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e)
        {
            System.Diagnostics.Debug.WriteLine($"[select]{e.IsSelected} -- {e.Item.Text}");

            if (e.IsSelected && !e.Item.Checked)
            {
                e.Item.Checked = true;
            }
        }

        private void tbSearch_KeyDown(object sender, KeyEventArgs e)
        {
            if(e.KeyCode == Keys.Enter)
            {
                btnSearch.PerformClick();
            }
        }
    }
}