C#如何实现图片轮播功能

本篇内容介绍了“C#如何实现图片轮播功能”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！

效果

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;    }

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