100分求上传图片属性里的大小问题

还有这等问题，真的还没碰到过，帮你顶
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欢迎试用ASP.NET大文件上传组件(AspnetUpload 1.0 Release & 无刷新进度条)
http://bestcomy.europe.webmatrixhosting.net
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if("" != UpFileControl.PostedFile.FileName)
{
imagePath= UpFileControl.PostedFile.FileName;
imageType= imagePath.Substring(imagePath.LastIndexOf(".")+1);
imageName = imagePath.Substring(imagePath.LastIndexOf("\\")+1); if("jpg" != imageType && "gif" != imageType)
{
Response.Write("<script language='javascript'> alert('对不起！请您选择jpg或者gif格式的图片！');</script>");
return;
}
else
{
HttpPostedFile SendImage=UpFileControl.PostedFile;
imageSize=SendImage.ContentLength;////取得图片
imageBody=new Byte[imageSize];

Stream StreamObject=SendImage.InputStream;//建立数据流对象
StreamObject.Read(imageBody,0,imageSize);///把图像数据放到mMarkBody中,其中0代表数据指针位置,intFileLength代表要读取的流的长度 imagePath=UpFileControl.PostedFile.FileName;//取得图象路径 SqlCom="insert into Image(ImageName,Image,ImageSize) values('"+imageName+"','"+imageBody+"','"+imageSize.ToString()+"')";
con.Open();
cmd = new SqlCommand(SqlCom,con);
try
{
cmd.ExecuteNonQuery();
Response.Write("成功!");
}
catch
{
Response.Write("失败!");
}
con.Close();
}
}

HttpFileCollection files  = HttpContext.Current.Request.Files;      System.Text.StringBuilder strMsg = new System.Text.StringBuilder();
      try
      {
        for(int iFile = 0; iFile < files.Count; iFile++)
        {
          ///'检查文件扩展名字
          HttpPostedFile postedFile = files[iFile];
          string fileName, fileExtension;
          fileName = System.IO.Path.GetFileName(postedFile.FileName);
          if (fileName != "")
          {
            fileExtension = System.IO.Path.GetExtension(fileName);
             postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("images/") + fileName);
          }
        }
        strStatus.Text = strMsg.ToString();
        return true;
      }
      catch(System.Exception Ex)
      {
        strStatus.Text = Ex.Message;
        return false;
      }

<%@ 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>

可不可以不要UploadFile.PostedFile.FileName 这样的语句，因为我的地址是从数据库里取出的，不能够点浏览的。

调试易

100分求上传图片属性里的大小问题

解决方案 »