C#实现图片轮播功能的示例代码

public partial class FORM1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    public bool Pflag;
    int flag = 0;
    FileSystemInfo[] fsinfo;
    ArrayList al = new ArrayList();
    int MM = 0;

    private void splitContainer2_Panel2_Paint(object sender, PaintEventArgs e)
    {
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        cbbShowType.SelectedIndex = 0;
    }

    private void button1_Click(object sender, EventArgs e)
    {
        if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
        {
            al.Clear();
            listBox1.Items.Clear();
            txtPicPath.Text = folderBrowserDialog1.SelectedPath;
            DirectoryInfo di = new DirectoryInfo(txtPicPath.Text);
            fsinfo = di.GetFileSystemInfos();
            for (int i = 0; i < fsinfo.Length; i++)
            {
                string filename = fsinfo[i].ToString();
                string filetype = filename.Substring(filename.LastIndexOf(".") + 1, filename.Length - filename.LastIndexOf(".") - 1);
                filetype = filetype.ToLower();
                if (filetype == "jpeg" || filetype == "jpg" || filetype == "png" || filetype == "gif" || filetype == "bmp")
                {
                    listBox1.Items.Add(fsinfo[i].ToString());
                    al.Add(fsinfo[i].ToString());
                    flag++;
                }
            }

            listBox1.SetSelected(0, true);
            listBox1.Focus();
            tssltotel.Text = "共有" + flag + "张图片";
            Pflag = true;
        }
    }

    private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string picpath = txtPicPath.Text + "\\" + listBox1.SelectedItem.ToString();
        tsslPath.Text = "|当前第" + Convert.ToString(listBox1.SelectedIndex + 1) + "张图片|图片位置：" + picpath;
        pictureBox1.Image = Image.FromFile(picpath);
        MM = listBox1.SelectedIndex;
    }

    private void button3_Click(object sender, EventArgs e)
    {
        listBox1.Items.Clear();
        txtPicPath.Text = "";
        tssltotel.Text = "";
        tsslPath.Text = "";
        pictureBox1.Image = null;
        Pflag = false;
        timer1.Stop();
        button5.Enabled = true;
    }

    private void button5_Click(object sender, EventArgs e)
    {
        if (Pflag)
        {
            if (txtTime.Text != "")
            {
                if (cbbShowType.SelectedIndex == 1)
                {
                    timer1.Interval = int.Parse(txtTime.Text.Trim());
                    timer1.Start();
                    button5.Enabled = false;
                }
                else
                {
                    Form2 frm2 = new Form2();
                    frm2.fsi = al;
                    frm2.picPath = txtPicPath.Text.Trim();
                    frm2.mytimer = int.Parse(txtTime.Text.Trim());
                    frm2.ShowDialog();
                }
            }
        }
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        if (MM < listBox1.Items.Count)
        {
            if (txtPicPath.Text.Trim().Length == 3)
            {
                pictureBox1.Image = Image.FromFile(txtPicPath.Text.Trim() + listBox1.Items[MM].ToString());
                listBox1.SetSelected(MM, true);
            }
            else
            {
                pictureBox1.Image = Image.FromFile(txtPicPath.Text.Trim() + "\\" + listBox1.Items[MM].ToString());
                listBox1.SetSelected(MM, true);
            }
        }

        MM++;
    }

    private void txtTime_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (!(e.KeyChar <= '9' && e.KeyChar >= '0') && e.KeyChar != '\r' && e.KeyChar != '\b')
        {
            e.Handled = true;
        }
    }

    private void txtTime_KeyDown(object sender, KeyEventArgs e)
    {
        if (txtTime.Text != "")
        {
            if (txtTime.Text.Trim().Substring(0, 1) == "0")
            {
                txtTime.Text = txtTime.Text.Substring(1, txtTime.Text.Length - 1);
            }
        }
    }

    private void button6_Click(object sender, EventArgs e)
    {
        timer1.Stop();
        button5.Enabled = true;
    }
}

public partial class Form2 : Form
{
    public Form2()
    {
        InitializeComponent();
    }
    public ArrayList fsi=new ArrayList();
    public int mytimer;
    public string picPath;
    private void pictureBox1_Click(object sender, EventArgs e)
    {
        timer1.Stop();
        this.Close();
    }

    private void pictureBox2_Click(object sender, EventArgs e)
    {

    }

    private void Form2_Load(object sender, EventArgs e)
    {
        timer1.Interval = mytimer;
        timer1.Start();
    }

    int MM = 0;
    private void timer1_Tick(object sender, EventArgs e)
    {
        if (MM <fsi.Count)
        {
            if (picPath.Length == 3)
            {
                pictureBox2.Image = Image.FromFile(picPath +fsi[MM].ToString());
            }
            else
            {
                pictureBox2.Image = Image.FromFile(picPath + "\\" + fsi[MM].ToString());
            }
        }
        MM++;
    }
}

 partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.statusStrip1 = new System.Windows.Forms.StatusStrip();
            this.tssltotel = new System.Windows.Forms.ToolStripStatusLabel();
            this.tsslPath = new System.Windows.Forms.ToolStripStatusLabel();
            this.splitContainer1 = new System.Windows.Forms.SplitContainer();
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.button6 = new System.Windows.Forms.Button();
            this.button5 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.cbbShowType = new System.Windows.Forms.ComboBox();
            this.txtTime = new System.Windows.Forms.TextBox();
            this.label2 = new System.Windows.Forms.Label();
            this.button1 = new System.Windows.Forms.Button();
            this.txtPicPath = new System.Windows.Forms.TextBox();
            this.label1 = new System.Windows.Forms.Label();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.statusStrip1.SuspendLayout();
            this.splitContainer1.Panel1.SuspendLayout();
            this.splitContainer1.Panel2.SuspendLayout();
            this.splitContainer1.SuspendLayout();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            // 
            // statusStrip1
            // 
            this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.tssltotel,
            this.tsslPath});
            this.statusStrip1.Location = new System.Drawing.Point(0, 398);
            this.statusStrip1.Name = "statusStrip1";
            this.statusStrip1.Size = new System.Drawing.Size(616, 22);
            this.statusStrip1.TabIndex = 0;
            this.statusStrip1.Text = "statusStrip1";
            // 
            // tssltotel
            // 
            this.tssltotel.BackColor = System.Drawing.Color.Transparent;
            this.tssltotel.Name = "tssltotel";
            this.tssltotel.Size = new System.Drawing.Size(0, 17);
            // 
            // tsslPath
            // 
            this.tsslPath.BackColor = System.Drawing.Color.Transparent;
            this.tsslPath.Name = "tsslPath";
            this.tsslPath.Size = new System.Drawing.Size(0, 17);
            // 
            // splitContainer1
            // 
            this.splitContainer1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
            this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.splitContainer1.Location = new System.Drawing.Point(0, 0);
            this.splitContainer1.Name = "splitContainer1";
            // 
            // splitContainer1.Panel1
            // 
            this.splitContainer1.Panel1.Controls.Add(this.listBox1);
            this.splitContainer1.Panel1.Controls.Add(this.button6);
            this.splitContainer1.Panel1.Controls.Add(this.button5);
            this.splitContainer1.Panel1.Controls.Add(this.button3);
            this.splitContainer1.Panel1.Controls.Add(this.cbbShowType);
            this.splitContainer1.Panel1.Controls.Add(this.txtTime);
            this.splitContainer1.Panel1.Controls.Add(this.label2);
            this.splitContainer1.Panel1.Controls.Add(this.button1);
            this.splitContainer1.Panel1.Controls.Add(this.txtPicPath);
            this.splitContainer1.Panel1.Controls.Add(this.label1);
            // 
            // splitContainer1.Panel2
            // 
            this.splitContainer1.Panel2.Controls.Add(this.pictureBox1);
            this.splitContainer1.Size = new System.Drawing.Size(616, 398);
            this.splitContainer1.SplitterDistance = 205;
            this.splitContainer1.SplitterWidth = 1;
            this.splitContainer1.TabIndex = 1;
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Location = new System.Drawing.Point(5, 148);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(195, 244);
            this.listBox1.TabIndex = 0;
            this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged);
            // 
            // button6
            // 
            this.button6.Location = new System.Drawing.Point(70, 119);
            this.button6.Name = "button6";
            this.button6.Size = new System.Drawing.Size(63, 23);
            this.button6.TabIndex = 9;
            this.button6.Text = "停止播放";
            this.button6.UseVisualStyleBackColor = true;
            this.button6.Click += new System.EventHandler(this.button6_Click);
            // 
            // button5
            // 
            this.button5.Location = new System.Drawing.Point(5, 119);
            this.button5.Name = "button5";
            this.button5.Size = new System.Drawing.Size(63, 23);
            this.button5.TabIndex = 8;
            this.button5.Text = "开始播放";
            this.button5.UseVisualStyleBackColor = true;
            this.button5.Click += new System.EventHandler(this.button5_Click);
            // 
            // button3
            // 
            this.button3.Location = new System.Drawing.Point(135, 119);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(63, 23);
            this.button3.TabIndex = 6;
            this.button3.Text = "清除数据";
            this.button3.UseVisualStyleBackColor = true;
            this.button3.Click += new System.EventHandler(this.button3_Click);
            // 
            // cbbShowType
            // 
            this.cbbShowType.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cbbShowType.FormattingEnabled = true;
            this.cbbShowType.Items.AddRange(new object[] {
            "原图大小显示",
            "适应窗口显示"});
            this.cbbShowType.Location = new System.Drawing.Point(5, 93);
            this.cbbShowType.Name = "cbbShowType";
            this.cbbShowType.Size = new System.Drawing.Size(195, 20);
            this.cbbShowType.TabIndex = 0;
            // 
            // txtTime
            // 
            this.txtTime.Location = new System.Drawing.Point(5, 63);
            this.txtTime.Name = "txtTime";
            this.txtTime.Size = new System.Drawing.Size(195, 21);
            this.txtTime.TabIndex = 4;
            this.txtTime.Text = "1000";
            this.txtTime.KeyDown += new System.Windows.Forms.KeyEventHandler(this.txtTime_KeyDown);
            this.txtTime.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.txtTime_KeyPress);
            // 
            // label2
            // 
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(3, 48);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(89, 12);
            this.label2.TabIndex = 3;
            this.label2.Text = "暂停时间(毫秒)";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(143, 20);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(57, 23);
            this.button1.TabIndex = 2;
            this.button1.Text = "浏览...";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // txtPicPath
            // 
            this.txtPicPath.BackColor = System.Drawing.Color.White;
            this.txtPicPath.Location = new System.Drawing.Point(5, 21);
            this.txtPicPath.Name = "txtPicPath";
            this.txtPicPath.ReadOnly = true;
            this.txtPicPath.Size = new System.Drawing.Size(137, 21);
            this.txtPicPath.TabIndex = 1;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(3, 6);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(65, 12);
            this.label1.TabIndex = 0;
            this.label1.Text = "图片目录：";
            // 
            // pictureBox1
            // 
            this.pictureBox1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox1.Location = new System.Drawing.Point(0, 0);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(406, 394);
            this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
            this.pictureBox1.TabIndex = 0;
            this.pictureBox1.TabStop = false;
            // 
            // timer1
            // 
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.BackColor = System.Drawing.Color.WhiteSmoke;
            this.ClientSize = new System.Drawing.Size(616, 420);
            this.Controls.Add(this.splitContainer1);
            this.Controls.Add(this.statusStrip1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.MaximizeBox = false;
            this.Name = "Form1";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "图片自动播放器";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.statusStrip1.ResumeLayout(false);
            this.statusStrip1.PerformLayout();
            this.splitContainer1.Panel1.ResumeLayout(false);
            this.splitContainer1.Panel1.PerformLayout();
            this.splitContainer1.Panel2.ResumeLayout(false);
            this.splitContainer1.ResumeLayout(false);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.StatusStrip statusStrip1;
        private System.Windows.Forms.SplitContainer splitContainer1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TextBox txtPicPath;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.TextBox txtTime;
        private System.Windows.Forms.ListBox listBox1;
        private System.Windows.Forms.Button button6;
        private System.Windows.Forms.Button button5;
        private System.Windows.Forms.Button button3;
        private System.Windows.Forms.ComboBox cbbShowType;
        private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog1;
        private System.Windows.Forms.ToolStripStatusLabel tsslPath;
        private System.Windows.Forms.ToolStripStatusLabel tssltotel;
        private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.Timer timer1;

    }

  partial class Form2
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.pictureBox2 = new System.Windows.Forms.PictureBox();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox2)).BeginInit();
            this.SuspendLayout();
            // 
            // pictureBox1
            // 
            this.pictureBox1.Dock = System.Windows.Forms.DockStyle.Right;
            this.pictureBox1.Image = global::PicPlay.Properties.Resources.图标__57_;
            this.pictureBox1.Location = new System.Drawing.Point(686, 0);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(27, 451);
            this.pictureBox1.TabIndex = 0;
            this.pictureBox1.TabStop = false;
            this.pictureBox1.Click += new System.EventHandler(this.pictureBox1_Click);
            // 
            // timer1
            // 
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // pictureBox2
            // 
            this.pictureBox2.Dock = System.Windows.Forms.DockStyle.Fill;
            this.pictureBox2.Location = new System.Drawing.Point(0, 0);
            this.pictureBox2.Name = "pictureBox2";
            this.pictureBox2.Size = new System.Drawing.Size(686, 451);
            this.pictureBox2.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
            this.pictureBox2.TabIndex = 1;
            this.pictureBox2.TabStop = false;
            this.pictureBox2.Click += new System.EventHandler(this.pictureBox2_Click);
            // 
            // Form2
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.BackColor = System.Drawing.Color.Black;
            this.ClientSize = new System.Drawing.Size(713, 451);
            this.Controls.Add(this.pictureBox2);
            this.Controls.Add(this.pictureBox1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "Form2";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "Form2";
            this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
            this.Load += new System.EventHandler(this.Form2_Load);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox2)).EndInit();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.Timer timer1;
        private System.Windows.Forms.PictureBox pictureBox2;

    }