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Winform的学习

          昨天由于一些原因没有上课啦,虽然也看啦一些东西,但是感觉太少也就没有来啦,嘿嘿,今天认真地了解啦winform,学习了一些控件的使用,但是感觉好多属性知道怎么用的,却还是记得不太清楚,感觉看到啦知道,之后可能又会全然忘记啦,虽然这个winform已经不再用啦,但是还想是想好好学习下啦,只怕那天再次遇到啦还要自己在找资料啦,所以我还是详细的总结下啦

      一.弹窗

         在Form中弹出另外一个窗体,首先建立一个Form窗体,把Form转变为容器,改变其属性如下:

        

    然后在工具中选取ToolStripMenuItem工具,添加其天梯,建立其他子窗体:

             

      在父窗体中实现弹窗功能代码如下:   

public partial class frmMain : Form    {        public frmMain()        {            InitializeComponent();        }        private void 弹出主窗体ToolStripMenuItem_Click(object sender, EventArgs e)        {            Form2 f2 = new Form2();            f2.MdiParent = this;            Form3 f3 = new Form3();            f3.MdiParent = this;            Form4 f4 = new Form4();            f4.MdiParent = this;            Form5 f5 = new Form5();            f5.MdiParent = this;            Form6 f6 = new Form6();            f6.MdiParent = this;            Form7 f7 = new Form7();            f7.MdiParent = this;            Form8 f8 = new Form8();            f8.MdiParent = this;            f2.Show(); f3.Show(); f4.Show();            f5.Show(); f6.Show(); f7.Show();            f8.Show();        }        private void 弹出纵向主窗体ToolStripMenuItem_Click(object sender, EventArgs e)        {            this.LayoutMdi(MdiLayout.TileVertical);        }        private void 弹出横向主窗体ToolStripMenuItem_Click(object sender, EventArgs e)        {            this.LayoutMdi(MdiLayout.TileHorizontal);        }    }

            二.图片控件PictureBox的使用

       设计Form窗体如下所示,添加一个PictureBox控件,然后选择添加两个按钮,最好下载一组图片以便于备用,然后实现其点击按钮上一张可以在PictureBox中显示上一张图片,点击按钮下一张,可以再PictureBox中显示下一张图片,代码如下:

               

    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        int i = 0;        private void Form1_Load(object sender, EventArgs e)        {            string[] arraypath = Directory.GetFiles(@"G:\image");            this.pictureBox1.Image = Image.FromFile(arraypath[0]);          }           private void btnpre_Click(object sender, EventArgs e)        {            string[] arraypath = Directory.GetFiles(@"G:\image");                       if (i == 0)            {                this.pictureBox1.Image = Image.FromFile(arraypath[arraypath.Length - 1]);                i = arraypath.Length - 1;            }            else            {                i--;                this.pictureBox1.Image = Image.FromFile(arraypath[i]);            }                }        private void button2_Click(object sender, EventArgs e)        {            string[] arraypath = Directory.GetFiles(@"G:\image");            if (i == arraypath.Length - 1)            {                this.pictureBox1.Image = Image.FromFile(arraypath[0]);                i = 0;            }            else            {                i++;                this.pictureBox1.Image = Image.FromFile(arraypath[i]);            }        }    }

               三.图片幻灯片形式播放

           在Form窗体中选择添加控件PictureBox,然后添加一控件Timer即可,然后设置Timer的属性其属性,实现代码如下:

           

       

public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {            string[] arraypath = Directory.GetFiles(@"G:\image");            this.pictureBox1.Image = Image.FromFile(arraypath[0]);        }        int i = 0;        private void timer1_Tick(object sender, EventArgs e)        {            string[] arraypath = Directory.GetFiles(@"G:\image");            i++;            if (i == arraypath.Length)            {                i = 0;                this.pictureBox1.Image = Image.FromFile(arraypath[i]);            }            else            {                this.pictureBox1.Image = Image.FromFile(arraypath[i]);            }                           }    }

               四.richBox。

                简单的说, 比普通textbox多的功能: 可以为每个字设定独立的字体,字号,颜色等..可以添加图片, 可以添加OLD对象.还比textbox多了很多种方法,比如直接打开文件,打印文件等。下面简单的实现下其功能:新建一个Form窗体,然后选择一个richBox控件,在文本框中选择写入一些文本,然后实现其事件,格式以及代码如下:

      

        private void richTextBox1_TextChanged(object sender, EventArgs e)        {            this.richTextBox1.AppendText("我被你写入了这个对话框里面");        }

             五.comboBox的使用

               combobox在这里使用时间需要注意的是,仅仅能够选择单项。

                       

    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {            string[] strs = {"--请选择下拉项--", "C语言也能干大事","在校不迷茫","毕业即辉煌" };            this.comboBox1.Items.AddRange(strs);                                this.comboBox1.SelectedItem = this.comboBox1.Items[0];        }}

             六.textbox的简单使用

        private void button1_Click(object sender, EventArgs e)        {            string urlpath = this.textBox1.Text;            Uri uri = new Uri("http://"+ urlpath);            this.webBrowser1.Url = uri;        }

         实现输入网址可以打开其网页的功能,例如:打开如鹏网。

               

            七.实现区域的三级分类

        在Form窗体上面选择三个textbox即可,然后实现其功能,代码入下:  

 public partial class Form1 : Form    {        string[] Sheng = { "--请选择省份--", "河南省", "湖南省" };        string[] Henancity = { "--请选择城市--", "郑州", "洛阳", "开封" };        string[] HuNancity = { "--请选择城市--", "长沙", "湘潭", "株洲" };        string[] zhengzhouArea = {"高新区","中原区","金水区","管城区","二七区","惠济区","郑东新区","航空港区","经开区" };        string[] changshaArea = {"雨花区","芙蓉区","高桥区","岳麓区","韶山区" };        public Form1()        {            InitializeComponent();        }        private void Form1_Load(object sender, EventArgs e)        {            this.cmbsheng.Items.AddRange(Sheng);            this.cmbsheng.SelectedIndex = 0;        }        private void cmbsheng_SelectedIndexChanged(object sender, EventArgs e)        {            int index = this.cmbsheng.SelectedIndex;            switch (index)            {                case 1:                    this.cmbcity.Items.Clear();                    this.cmbcity.Items.AddRange(Henancity);                    this.cmbcity.SelectedIndex = 0;                                        break;                case 2:                    this.cmbcity.Items.Clear();                    this.cmbcity.Items.AddRange(HuNancity);                    this.cmbcity.SelectedIndex = 0;                    break;                default:                    break;            }        }        private void cmbcity_SelectedIndexChanged(object sender, EventArgs e)        {            int  index=this.cmbcity.SelectedIndex;            object selecttext = this.cmbcity.SelectedItem;            switch (index)            {                case 1:                    if (selecttext.Equals("郑州"))                    {                        this.cmbarea.Items.Clear();                        this.cmbarea.Items.AddRange(zhengzhouArea);                        this.cmbarea.SelectedIndex = 0;                    }                    else if(selecttext.Equals("长沙"))                    {                        this.cmbarea.Items.Clear();                        this.cmbarea.Items.AddRange(changshaArea);                        this.cmbarea.SelectedIndex = 0;                    }                              break;                case 2:                    this.cmbarea.Items.Clear();                    this.cmbarea.Items.AddRange(null);                    this.cmbarea.SelectedIndex = 0;                    break;                case 3:                    this.cmbarea.Items.Clear();                    this.cmbarea.Items.AddRange(null);                    this.cmbarea.SelectedIndex = 0;                    break;            }        }    }

              八.用ListBox和PictureBox实现其在ListBox中选择图片的序列,在picturebox中显示图片

 private void Form1_Load(object sender, EventArgs e)        {            string[] imagepath = Directory.GetFiles(@"G:\image");            string[] filename=new string[imagepath.Length];            for (int i = 0; i < imagepath.Length; i++)            {                string path = Path.GetFileNameWithoutExtension(imagepath[i]);                filename[i] = path+"\r\n";                           }               listBox1.Items.AddRange(filename);        }        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)        {            int index = this.listBox1.SelectedIndex;            this.pictureBox1.Image = Image.FromFile(@"G:\image\" + index + ".jpg");        }

 结果如下:

                    

               九.在messagebox消息框小时选择的listBox的内容

              

private void Form1_Load(object sender, EventArgs e)        {            string[] strs = {"1","2","3" };            listBox1.Items.AddRange(strs);        }        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)        {                 var  selected= this.listBox1.SelectedItems;                 foreach (var item in selected)                 {                     MessageBox.Show(item.ToString());                 }        }

          其运行结果如下:

               

            好啦,今天在云和学院学习就这些啦,虽然有点多吧,但是在winform这方面也不需要过多的学习吧,所以就讲啦好多啦,只是让我们理解熟悉啦,嘿嘿,winform的学习感觉还好啦,只是在每个控件的属性上面该设置哪个属性估计记得是不太清楚,我想是不熟悉的原因吧。

Winform的学习