1拼多多sku货号价格 2拼多多sku增删改功能（70%）

TEMUKJD/UserComponent/UcComboBoxMutiSelect .cs

@@ -0,0 +1,161 @@
+using NaiBa.Util.Extension;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace TemuKJD.UserComponent
+{
+    public partial class UcComboBoxMutiSelect : ComboBox
+    {
+        //private bool _IsMultiSelect;
+        //public bool IsMultiSelect { get => _IsMultiSelect; set => _IsMultiSelect = value; }
+
+        public string DefaultText { get; set; } = "全部";
+
+        public List<object> SelectItems
+        {
+            get
+            {
+                if (this.checkedListBox == null)
+                    return this.Items.Cast<object>().ToList();
+
+                List<object> lstObj = new List<object>();
+                for (int i = 0; i < checkedListBox.Items.Count; i++)
+                {
+                    if (checkedListBox.GetItemChecked(i))
+                    {
+                        lstObj.Add(checkedListBox.Items[i]);
+                    }
+                }
+                return lstObj;
+            }
+        }
+
+        CheckedListBox checkedListBox = null;
+        public UcComboBoxMutiSelect()
+        {
+            SetStyle(ControlStyles.DoubleBuffer |
+            ControlStyles.OptimizedDoubleBuffer |
+            ControlStyles.AllPaintingInWmPaint, true);
+            UpdateStyles();
+
+            this.DropDown += UcComboBoxMutiSelect_DropDown;
+            //this.DropDownClosed += UcComboBoxMutiSelect_DropDownClosed;
+        }
+
+        private void UcComboBoxMutiSelect_DropDownClosed(object sender, EventArgs e)
+        {
+            if (checkedListBox != null)
+                checkedListBox.Visible = false;
+        }
+
+        private void UcComboBoxMutiSelect_DropDown(object sender, EventArgs e)
+        {
+            this.DropDownHeight = 1;
+
+            if (checkedListBox == null)
+            {
+                checkedListBox = new CheckedListBox();
+                checkedListBox.Visible = false;
+                checkedListBox.CheckOnClick = true;
+                checkedListBox.ItemCheck += checkedListBox_ItemCheck;
+                checkedListBox.MouseLeave += checkedListBox_MouseLeave;
+                checkedListBox.MouseEnter += CheckedListBox_MouseEnter;
+                checkedListBox.MouseMove += CheckedListBox_MouseMove;
+                //checkedListBox.MouseUp += new MouseEventHandler(this.checkedListBox_MouseUp);
+
+                Point point = new Point();
+                point.X = this.Left;
+                point.Y = this.Top + this.Height;
+                var parentForm = this.Parent;
+                while (!(parentForm is Form))
+                {
+                    point.X += parentForm.Left;
+                    point.Y += parentForm.Top;
+                    parentForm = parentForm.Parent;
+                }
+                parentForm.Controls.Add(checkedListBox);
+                checkedListBox.Location = point;
+                checkedListBox.Size = new Size(Math.Max(80, this.Width), 100);
+            }
+
+            string str1 = string.Join(",", this.Items.Cast<object>().Select(o => o.ParseToString()));
+            string str2 = string.Join(",", this.checkedListBox.Items.Cast<object>().Select(o => o.ParseToString()));
+            if (str1 != str2)
+            {
+                foreach (var item in this.Items)
+                {
+                    checkedListBox.Items.Add(item.ParseToString(), true);
+                }
+            }
+
+            this.FindForm().ActiveControl = checkedListBox;
+            checkedListBox.Visible = true;
+            checkedListBox.BringToFront();
+        }
+
+        private void CheckedListBox_MouseMove(object sender, MouseEventArgs e)
+        {
+            //this.DropDownClosed -= UcComboBoxMutiSelect_DropDownClosed;
+        }
+
+        private void CheckedListBox_MouseEnter(object sender, EventArgs e)
+        {
+            //this.DropDownClosed -= UcComboBoxMutiSelect_DropDownClosed;
+        }
+
+        private void checkedListBox_MouseLeave(object sender, EventArgs e)
+        {
+            ////this.DropDownClosed += UcComboBoxMutiSelect_DropDownClosed;
+            ////统计选取的项目
+            //string str = "";
+            //for (int i = 0; i < checkedListBox.Items.Count; i++)
+            //{
+            //    if (checkedListBox.GetItemChecked(i))
+            //    {
+            //        str += $"{checkedListBox.Items[i].ParseToString()};";
+            //    }
+            //}
+            //this.Text = str;
+            checkedListBox.Visible = false;
+            this.OnDropDownClosed(null);
+        }
+
+        private void checkedListBox_ItemCheck(object sender, EventArgs e)
+        {
+            //统计选取的项目
+
+            Task.Run(() =>
+            {
+                Thread.Sleep(100);
+                Invoke(new Action(() =>
+                {
+                    string str = "";
+                    for (int i = 0; i < checkedListBox.Items.Count; i++)
+                    {
+                        if (checkedListBox.GetItemChecked(i))
+                        {
+                            str += $"{checkedListBox.Items[i].ParseToString()};";
+                        }
+                    }
+                    this.Text = str;
+
+
+                    string str1 = string.Join(";", this.Items.Cast<object>().Select(o => o.ParseToString()));
+                    if (this.Text.Trim(';') == str1)
+                    {
+                        this.Text = this.DefaultText;
+                    }
+                }));
+            });
+
+        }
+    }
+}