listBox和pictureBox的使用

重要属性:
pictureBox中SizeMode可以更改图像显示的尺寸大小。

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; using System.IO; namespace ListBox { public partial class Form1 : Form { public Form1() { InitializeComponent(); } //为了在两个方法中都能访问到 String[] path = Directory.GetFiles("E:\\00","*.jpg"); private void Form1_Load(object sender, EventArgs e) { for ( int i = 0; i < path.Length; i++) { //根据路径名获取文件名称 string fileName = Path.GetFileName(path[i]); listBox1.Items.Add(fileName); } } private void listBox1_DoubleClick(object sender, EventArgs e) { //添加图片文件,需要添加全路径 pictureBox1.Image = Image.FromFile(path[listBox1.SelectedIndex]); } } }

 

使用List

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;
using System.IO;

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

        //为了在两个方法中都能访问到
        List<string> list = new List<string>();

        private void Form1_Load(object sender, EventArgs e)
        {
            String[] path = Directory.GetFiles("E:\\00", "*.jpg");
             for ( int i = 0; i < path.Length; i++)
            {
                 //根据路径名获取文件名称
                 string fileName = Path.GetFileName(path[i]);
                 listBox1.Items.Add(fileName);

                 //将图片全路径添加到List泛型中;
                 list.Add(path[i]);
            }
        }

        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            //添加图片文件,需要添加全路径
            pictureBox1.Image = Image.FromFile(list[listBox1.SelectedIndex]);
        }

        private void listBox1_Click(object sender, EventArgs e)
        {
            
            pictureBox1.Image = Image.FromFile(list[listBox1.SelectedIndex]);
        }
    }
}

  

posted @ 2017-08-23 13:00  mCat  Views(1025)  Comments(0Edit  收藏  举报