WebForm 實例 (ASP.NET) 台南市教育局網路中心 在職教師校務行政系統程式 開發進階班 行政網路組

熟悉 Web Controls 實作各元件使用 實作報名表 Forms (Validate ……..) Panel 切換 String 處理 實作 IE Web Controls

File Upload with ASP.NET(1) 1. Setting up HTML form for file uploading 注意元件為 RunAt=server 2. Receiving uploaded file. protected System.Web.UI.HtmlControls.HtmlInputFile myFile; if(myFile.PostedFile != null ) { // 檔案上傳 } else { // 沒有檔案 }

File Upload with ASP.NET(2) 3. PostedFile property will contain a valid System.Web.HttpPostedFile object if file indeed was uploaded. HttpPostedFile provides us with 4 properties: ContentLength – size of uploaded file in bytes ContentType – MIME type of uploaded file, i.e. “ image/gif ” FileName – full path to uploaded file on client ’ s system, i.e. c:\Some folder\MyPicture.gif 4. 建立目錄 5.RTM 版本 --- 修改 machine.config 修正為 ………

File Upload with ASP.NET(3) PostedFile.SaveAs() IO 元件 Directory.GetFiles() File.Exists() File. Delete() 字串處理 LastIndexOf() Substring() WebControl Listbox 使用

File Upload with ASP.NET(4) 結合目錄及 upload 功能 --- 可做新增刪除修改

System.Drawing(1) Bitmap class and the Graphics class 第一步 Bitmap objBitmap = new Bitmap(width, height); 第二步 Graphics objGraphics=Graphics.FromImage(objBitmap);

System.Drawing(2) objGraphics.FillRectangle(new SolidBrush(Color.Black), 0, 0, width, height); Font fontBanner=new Font(" 新細明體 ", 16, FontStyle.Bold); StringFormat stringFormat=new StringFormat(); stringFormat.Alignment = StringAlignment.Center; objGraphics.DrawString() objBitmap.Save() objGraphics.Dispose(); objBitmap.Dispose();

System.Drawing(3) 成果 : 自動產生圖型

System.Drawing(4) 成果 : 自動產生圖型 (2)

State Management in ASP.NET Client-side state management A. Cookies. if (Request.Cookies[ “ username ” ]!=null) lbMessage.text= ” Dear “ +Request.Cookies[ “ username ” ].Value+ ”, Welcome shopping here! ” ; else lbMessage.text= ” Welcome shopping here! ” ; B. Hidden Field C. View State D. Query Strings Server-side state management: A. Aplication object B. Session object C. Database