项目总结

//光棒效果

        protected void GridView1_RowDataBound(objectsender, GridViewRowEventArgs e)

        {

            if(e.Row.RowType == DataControlRowType.DataRow)

            {

                e.Row.Attributes.Add("onmouseover", "currentcolor=this.style.backgroundColor;this.style.backgroundColor='#87CEEB'");

                e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=currentcolor");

                HtmlInputCheckBoxch = (HtmlInputCheckBox)e.Row.FindControl("cbTui");

                intxx = Convert.ToInt32(ch.Value);

                if(xx == 1)

                {

                    ch.Checked = true;

                }

                else

                {

                    ch.Checked = false;

                }

 

                HtmlInputCheckBoxc = (HtmlInputCheckBox)e.Row.FindControl("cbHot");

                intx = Convert.ToInt32(c.Value);

                if(x == 1)

                {

                    c.Checked = true;

                }

                else

                {

                    c.Checked = false;

                }

            }

        }

光棒显示，用行数据绑定事件。

复选按钮的绑定

也在这个事件里，注意要判断一下，行类型要是数据行的时候绑定。

。先在页面那里绑定好value，然后根据value值判断是否选中。

 

页面要注意要在加载事件里用isPostBack，如：

If（！isPostBack）

{

……内容

}

否则会取不到内容控件已经更改的数据，而仍然是旧的数据。这一点我是屡屡犯错，屡屡不改！

 

Asp的上传图片（单张上传）

  //上床方法

        public void Upload()

        {         

            HttpPostedFileupImg=this.upImg.PostedFile;

            ClientScriptManagercs = Page.ClientScript;

            stringpicName = "";//生成时间格式的文件名

            stringfilename = "";//不?含?路¡¤径?的Ì?文?件t名?

            //upImg的格式：C:\cake\sdfsdf.jpg

            filename =upImg.FileName.Substring(upImg.FileName.LastIndexOf("\\")+ 1, upImg.FileName.Length - upImg.FileName.LastIndexOf("\\") - 1);

            stringextension = System.IO.Path.GetExtension(filename).ToLower();

//格式限制处理

            if(extension == ".jpg" || extension== ".jpeg" || extension == ".gif" || extension == ".bmp")

            {

                Randomra = new Random();

                DateTimed1 = DateTime.Now;

                picName = d1.ToString("yyyyMMddHHmmss") + ra.Next(100,999).ToString() + extension;//生成时间格式的文件名

                stringsavePath = Server.MapPath("~/UpPic/"+ picName);//保存的路径

                upImg.SaveAs(savePath);

                Session["pic"] = picName;

                this.add.Style.Clear();

                this.add.Style["display"] = "block";

                cs.RegisterStartupScript(this.GetType(), "ss","alert('上传成功')", true);

            }

            else

            {

                cs.RegisterStartupScript(this.GetType(), "ss","alert('上传失败')", true);

            }

        }

 

   //先把放在文件里的图片删除了，再做数据的删除操作，删除数据库的记录。

     File.Delete(Server.MapPath("~/UpPic/" + f.PicUrl));

 

.Nets生成文件夹，以及文件的操作

 

  //创建文件夹

        public static bool CreateDir(stringpath,string fileName)

        {

            try

            {

                Directory.CreateDirectory(path+"\\"+fileName);

                returntrue;

            }

            catch(Exception)

            {

                returnfalse;

            }

        }

 

 

/// <summary>

        ///

        /// </summary>

        /// <param name="dir">完整路径路径</param>

   public static List<ModelFile> FindFile(stringdir)            

   {    

    //在指定目录及子目录下寻找文件

     DirectoryInfo  Dir=new  DirectoryInfo(dir);

     List<ModelFile> li = newList<ModelFile>();

      foreach(DirectoryInfo d inDir.GetDirectories())    //寻找子目录      

{

           ModelFilem = new ModelFile();

           m.FileName = d.Name;

           m.CreateTime =d.CreationTime.ToString();//文件的创建时间

           foreach(var item inDir.GetDirectories(d.Name))//以下操作只是为了计算该文件夹下的文件数量

           {

               inti = 0;

                foreach(var it initem.GetFiles())

               {

                   i++;

               }

                m.Num = i;

           }

           li.Add(m);

       }

      returnli;

   }

 

//返¤¦Ì回?某3一°?文?件t夹D下?的Ì?html文?件t

//读取出子文件

  public static List<ModelHtmlFile> FindSonFile(string dir,stringfileName)

   {

       //在¨²指?定¡§目?录?及¡ã子Á¨®目?录?下?查¨¦找¨°文?件t

       DirectoryInfoDir = new DirectoryInfo(dir);

       List<ModelHtmlFile> li = newList<ModelHtmlFile>();

       vardd=Dir.GetDirectories(fileName);//指定文件夹

      

       foreach(DirectoryInfo d indd)     //查找子目录

       {

           foreach(var item ind.GetFiles())

           {  

               if(item.Extension!=".jpg"){//文件后缀的判断

               ModelHtmlFileht = new ModelHtmlFile();

               ht.FileName = item.Name;

               ht.CreateTime =item.CreationTime.ToString();

               ht.Path = dir + fileName;

               ht.Type = "html";

               li.Add(ht);

               }

           }

       }

       returnli;

   }

 

IO流的操作

/// <summary>

   /// 文件的读取

   /// </summary>

   /// <paramname="url">全¨?部?的Ì?路¡¤径?</param>

   /// <returns></returns>

   public static stringReaderHtml(string url)

   {

       FileStreamfs = null;

       StreamReadersr = null;

 

       stringstr = "";

       try

       {

           //构造文件流

           fs = newFileStream(url,FileMode.Open);

           sr = newStreamReader(fs);

          //从头读到尾

           str = sr.ReadToEnd();

 

           //关闭读写器

           sr.Close();

           //关闭文件流

           fs.Close();

       }

       catch (Exception)

       {

           sr.Close();

           fs.Close();

           returnstr;

       }

       returnstr;

   }

 

//写入

   public static boolWirteHtml(string url,stringstr)

   {

       FileStreamfs = null;

       StreamWritersw = null;

 

       try

       {

           //构造文件流

           fs = newFileStream(url, FileMode.Open);

           //构造写入器

           sw = newStreamWriter(fs, Encoding.UTF8);

           sw.Write(str);

 

           // 关闭读写器

           sw.Close();

           //关闭文件流

           fs.Close();

       }

       catch (Exception)

       {

           sw.Close();

           fs.Close();

           returnfalse;

       }

       return true;

   }

 

用My97DatePicker：

先将js文件WdatePicker.js引入

<asp:TextBox ID="txtTime" runat="server" CssClass="Wdate"

                       onClick="WdatePicker()"></asp:TextBox>

 

这次项目的做的批量删除，是把id用逗号拼接在stirng里面，然后，再用split分割出来取出来，放在一个stirng数组里边。然后就是遍历，一个一个分别删除

 

 

验证码（似乎MVC的验证码）

1普通的aspx页面的验证码（GetValidateCode.aspx）

需要引入一些命名空间：

using System.Drawing;

using System.Drawing.Drawing2D;

using System.IO;

using System.Drawing.Imaging;

 

public partial class GetValidateCode: System.Web.UI.Page

    {

        protectedvoid Page_Load(objectsender, EventArgs e)

        {

            stringvalidatecode = GenerateCheckCode();

            Session["validatecode"]= validatecode;//放到session里面，判断是也是通过session取出来判断

            byte[]bytes = CreateValidateGraphic(validatecode);

            Response.ContentType = "image/Jpeg";

            Response.BinaryWrite(bytes);

        }

 

        /// <summary>

        /// 获取随机验证码

        /// </summary>

        /// <returns></returns>

        public string GenerateCheckCode()

        {

            intnumber;

            charcode;

            stringcheckCode = String.Empty;

            System.Randomrandom = new Random();

            for(int i = 0; i < 5; i++)

            {

                number = random.Next();

                if(number % 2 == 0)

                    code = (char)('0' + (char)(number % 10));

                else

                    code = (char)('A' + (char)(number % 26));

                checkCode += code.ToString();

            }

            returncheckCode;

        }

 

        /// <summary>

        ///创建验证码图片

        public byte[] CreateValidateGraphic(stringvalidateCode)

        {

            Bitmapimage = new Bitmap((int)Math.Ceiling(validateCode.Length* 12.0), 22);

            Graphicsg = Graphics.FromImage(image);

            try

            {

                //随机生成器

Random random = new Random();

                //清空背景色，背景设置为白色

                g.Clear(Color.White);

 

 

                //设置图片的干扰线

                for(int i = 0; i < 25; i++)

                {

                    intx1 = random.Next(image.Width);

                    intx2 = random.Next(image.Width);

                    inty1 = random.Next(image.Height);

                    inty2 = random.Next(image.Height);

                    g.DrawLine(new Pen(Color.Silver), x1, y1, x2, y2);

                }

                Fontfont = new Font("Arial", 12, (FontStyle.Bold| FontStyle.Italic));

                LinearGradientBrushbrush = new LinearGradientBrush(new Rectangle(0,0, image.Width, image.Height),

                 Color.Blue,Color.DarkRed, 1.2f, true);

                g.DrawString(validateCode,font, brush, 3, 2);

                //画图片的前景干扰线

                for(int i = 0; i < 100; i++)

                {

                    intx = random.Next(image.Width);

                    inty = random.Next(image.Height);

                    image.SetPixel(x, y, Color.FromArgb(random.Next()));

                }

                //画图片的边框线               

g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height- 1);

                //保存图片数据

                MemoryStreamstream = new MemoryStream();

                image.Save(stream, ImageFormat.Jpeg);

                //输出图片流

                returnstream.ToArray();

            }

            finally

            {

                g.Dispose();

                image.Dispose();

            }

        }

    }

 

这是一个aspx页面，我写在里面，然后输出，最后再由我需要使用的那个页面指向这个页面。

  <img  onclick="updateCode()"id="validateImg"  src="GetValidateCode.aspx" />

 

updateCode()函数：让它每点击一次改变一次

<script type="text/javascript">

        functionupdateCode() {

            document.getElementById("validateImg").src = "GetValidateCode.aspx?time" + new Date().getMilliseconds();

        }

</script>