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  • c#两个listbox怎么把内容添加到另外个listbox

    https://bbs.csdn.net/topics/392156324?page=1

     public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
     
                listBox1.SelectionMode = SelectionMode.MultiSimple;
                listBox2.SelectionMode = SelectionMode.MultiSimple;
     
                listBox1.Items.Add(1); ;
                listBox1.Items.Add(2);
                listBox1.Items.Add(3);
                listBox1.Items.Add(4);
                listBox1.Items.Add(5);
     
                button1.Click += new EventHandler(button_Click);
                button2.Click += new EventHandler(button_Click);
                button3.Click += new EventHandler(button_Click);
                button4.Click += new EventHandler(button_Click);
            }
     
            void button_Click(object sender, EventArgs e)
            {
                switch ((sender as Button).Text)
                {
                    case ">": ItemMove(listBox1, listBox2); break;
                    case "<": ItemMove(listBox2, listBox1); break;
                    case ">>": ItemMove(listBox1, listBox2, true); break;
                    case "<<": ItemMove(listBox2, listBox1, true); break;
                }
            }
            void ItemMove(ListBox a, ListBox b, bool all=false)
            {
                var st = new ArrayList();
                if(all) foreach (var item in a.Items) st.Add(item);            
                else foreach (var item in a.SelectedItems) st.Add(item);
                foreach(var item in st)
                {
                    b.Items.Add(item);
                    a.Items.Remove(item);
                }            
            }
        }

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  • 原文地址:https://www.cnblogs.com/zkwarrior/p/9102255.html
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