columnselector.cs

实现简单个人数据库系统

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

namespace QueryTool_V1
{
    public partial class columnSelector : Form
    {
        public columnSelector()
        {
            InitializeComponent();
            button1.Enabled = false;
            button2.Enabled = false;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            // -->
            for (int s = 0; s < listBox1.SelectedItems.Count; s++)
                listBox2.Items.Add(listBox1.SelectedItems[s]);
            for (int s = 0; s < listBox1.SelectedItems.Count; s++)
                listBox1.Items.Remove(listBox1.SelectedItems[s]);
            if (0 == listBox1.Items.Count)
                button1.Enabled = false;
            else
                button1.Enabled = true;
            if (0 == listBox2.Items.Count)
                button2.Enabled = false;
            else
                button2.Enabled = true;

        }

        private void button2_Click(object sender, EventArgs e)
        {
            // <--
            for (int us = 0; us < listBox2.SelectedItems.Count; us++)
                listBox1.Items.Add(listBox2.SelectedItems[us]);
            for (int us = 0; us < listBox2.SelectedItems.Count; us++)
                listBox2.Items.Remove(listBox2.SelectedItems[us]);
            if (0 == listBox2.Items.Count)
                button2.Enabled = false;
            else
                button2.Enabled = true;
            if (0 == listBox1.Items.Count)
                button1.Enabled = false;
            else
                button1.Enabled = true;

        }

        private void button3_Click(object sender, EventArgs e)
        {
            // Move up
        }

        private void button4_Click(object sender, EventArgs e)
        {
            // Move Down
        }
    }
}