大家有没有好的图片上传实例啊（C#），大家知道的推荐一下

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaspp/html/aspnet-fileupload.asp
http://www.ondotnet.com/pub/a/dotnet/2002/04/01/asp.html
http://www.developer.com/net/asp/article.php/3097661
http://www.codeproject.com/aspnet/FileUploadProgressBar.asp
http://www.stardeveloper.com/articles/display.html?article=2003022601&page=1

<%@ Page Language="c#" Debug="true" Trace="true"%>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Imaging" %>
<html>
<script runat =server>
      void UploadBtn_Click(Object sender, EventArgs e) {
         String filename;
         String filename1;
         String[] filename2;
         int q;
         filename=UploadFile.PostedFile.FileName ;
         filename2=filename.Split(new Char[] {'\\'});
         q=filename2.GetUpperBound(0);
         filename1=filename2[q];
         dis.Text="上传文件名："+filename1+"<br/>";
         UploadFile.PostedFile.SaveAs(Server.MapPath(filename1));
         ImageEditor.Visible = true;
         dis.Text+="文件大小："+UploadFile.PostedFile.ContentLength+"字节数";
         Image1.Src=filename1;
      }
      void UpdateBtn_Click(Object sender, EventArgs e) {
        String filename1;
   filename1=Image1.Src;
   System.Drawing.Image image = System.Drawing.Image.FromFile(Server.MapPath(filename1));
   System.Drawing.Image newimage = new Bitmap(image.Width, image.Height, PixelFormat.Format32bppRgb);
   Graphics g = Graphics.FromImage(newimage);
   g.DrawImage(image,0,0,image.Width,image.Height);
   Font f = new Font(FontType.SelectedItem.Text, Int32.Parse(FontSize.SelectedItem.Text));
   Brush b = new SolidBrush(Color.Red);
   g.DrawString(Caption.Text, f, b, 10, 140);
   g.Dispose();
   //System.Drawing.Image thumbImage = newimage.GetThumbnailImage(Convert.ToInt32(Width.Text),Convert.ToInt32(Height.Text),null,0);
   image.Dispose();
  // thumbImage.Save(Server.MapPath(filename1), ImageFormat.Jpeg);
   Image1.Src=filename1;
   Caption.Text="";
      }   </script>   <body>
   <asp:label id="dis" runat=server/>
     <form enctype="multipart/form-data" runat=server>          <h3>          Select File To Upload: <input id="UploadFile" type=file runat=server>          <asp:button Text="Upload Me!" OnClick="UploadBtn_Click" runat=server/>          <hr>

          <asp:panel id="ImageEditor" Visible=false runat=server>             <img ID="Image1" src="" runat="server"/>             <h3>
                Image Width: <asp:textbox id="Width" runat=server/>                 Image Height: <asp:textbox id="Height" runat=server/> <br/>                 Text Caption: <asp:textbox id="Caption" runat=server/>                 Caption Size: <asp:dropdownlist id="FontSize" runat=server>
                                         <asp:listitem>14</asp:listitem>
                                         <asp:listitem>18</asp:listitem>
                                         <asp:listitem>26</asp:listitem>
                                         <asp:listitem>36</asp:listitem>
                                         <asp:listitem>48</asp:listitem>
                                         <asp:listitem>62</asp:listitem>
                                      </asp:dropdownlist>
                 Caption Font: <asp:dropdownlist id="FontType" runat=server>
                                         <asp:listitem>黑体</asp:listitem>
                                         <asp:listitem>仿宋</asp:listitem>
                                         <asp:listitem>隶书</asp:listitem>
                                         <asp:listitem>楷书</asp:listitem>
                                         <asp:listitem>方正姚体</asp:listitem>
                                         <asp:listitem>华文彩云</asp:listitem>
                                      </asp:dropdownlist>

                 <asp:button Text="Update Image" OnClick="UpdateBtn_Click" runat=server/>             </h3>
          </asp:panel>      </form>   </body>
</html>

<%@ Page Language="c#" Debug="true" Trace="true"%>
<%@ Import Namespace="System.IO" %>
<html>
<head>
<script runat="server">    void SubmitButton_Click(Object sender, EventArgs e) {
       if (File1.PostedFile != null) {
          try {
              File1.PostedFile.SaveAs("E:/hnb/");
             //File1.PostedFile.SaveAs(Request.PhysicalApplicationpath);
             Span1.InnerHtml = "Upload Successful!";
          }
          catch (Exception ex) {
             Span1.InnerHtml = "Error saving file <b>C:\\" +
                File1.Value + "</b><br>" + ex.ToString();
          }
       }
    } </script>
</head>
<body>
    <form runat="server" enctype="multipart/form-data">
        Select a file to upload:<br />
        <input type="file" id="File1" runat="Server">
        <p>
        <input type="submit" id="Submit1" runat="Server"
         value="Upload File" OnServerClick="SubmitButton_Click">
        <p>
        <span id="Span1" runat="Server" />
    </form>
</body>
</html>
大家看一下这段代码错在哪里呢

lihonggen0(李洪根，MS MVP，标准答案来了)
很久没看见你了！

to lxcc(虫子):我经常上的呀!你可以在vb论坛和.net部分见到最近在做一个2000万的大项目.电信的

File1.PostedFile.SaveAs("E:/hnb/文件名");

File1.PostedFile.SaveAs("C:\\Uploads\\uploadedfile.txt");你必须保证有这个目录

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwebuihtmlcontrolshtmlinputfileclasspostedfiletopic.asp

<%@ Page Language="C#" AutoEventWireup="True" %><html>
<head>

    <script language="C#" runat="server">

       void Button1_Click(object Source, EventArgs e)
       {

          if (Text1.Value == "")
          {
             Span1.InnerHtml = "Error: you must enter a file name";
             return;
          }

          if (File1.PostedFile != null)
          {
             try
             {
                File1.PostedFile.SaveAs("c:\\temp\\"+Text1.Value);
                Span1.InnerHtml = "File uploaded successfully to <b>c:\\temp\\" +
                                  Text1.Value + "</b> on the Web server";
             }
             catch (Exception exc)
             {
                Span1.InnerHtml = "Error saving file <b>c:\\temp\\" +
                                  Text1.Value + "</b><br>" + exc.ToString();
             }
          }
       }

    </script>

</head>
<body>

    <h3>HtmlInputFile Sample</h3>

    <form enctype="multipart/form-data" runat="server">

       Select File to Upload:
       <input id="File1"
              type="file"
              maxlength="30"
              runat="server"/>

       <p/>
       Save as filename (no path):
       <input id="Text1"
              type="text"
              runat="server"/>

       <p/>
       <span id="Span1"
             style="font: 8pt verdana;"
             runat="server" />

       <p/>
       <input type="button"
              id="Button1"
              value="Upload"
              OnServerClick="Button1_Click"
              runat="server">

    </form>

</body>
</html>

调试易

大家有没有好的图片上传实例啊（C#），大家知道的推荐一下

解决方案 »