上传图片

private void btnBookAdd_Click(object sender, System.EventArgs e)
  {
   
   if(this.txtProductCode.Text!=null && this.txtProductCode.Text.Length>0 && this.txtProductName.Text!=null && this.txtProductName.Text.Length>0)
   {
    //////////////////////////
    //保存上传新闻图象
    int errorno=0;
    string filename=" ";//保存头像图片的路径信息
    string name=""; //仅保存文件名
 
    if(newsimage.PostedFile==null)
    {
     //     wc.InnerHtml="请先选择一个图片再点粘贴";
     errorno=1;
    }
    else
    {
     if(newsimage.PostedFile.FileName.Length<3)
     {
      //      wc.InnerHtml="请先选择一个图片再点粘贴";
      errorno=1;
     }
     else
     {
      if(newsimage.PostedFile.FileName.Substring(newsimage.PostedFile.FileName.Length-3).ToLower()!="gif" && newsimage.PostedFile.FileName.Substring(newsimage.PostedFile.FileName.Length-3).ToLower()!="jpg" )
      {
       //       wc.InnerHtml="图片格式只接受jpg和gif两种格式";
       errorno=1;
      }
      if(newsimage.PostedFile.ContentLength==0)
      {
       //       wc.InnerHtml="请先选择一个图片再点粘贴";
       errorno=1;
      }
      if(newsimage.PostedFile.ContentLength>600000)
      {
       //       wc.InnerHtml="图片大小限定在600K以内";
       errorno=1;
      }
     }
    }
    if(errorno==0)
    {
     string path=Server.MapPath("images");
     filename=DateTime.Now.ToString();
     filename=filename.Replace(":","");
     filename=filename.Replace("-","");
     filename=filename.Replace(" ","");
     Random r=new Random();
     filename=filename+r.Next(1000);
     filename=filename+"."+newsimage.PostedFile.FileName.Substring(newsimage.PostedFile.FileName.Length-3);
     name=filename; 
     filename=path+"/"+filename;    
     try
     {
      newsimage.PostedFile.SaveAs(filename);
     }
     catch
     {
//      wc.InnerHtml=ex.Message;
     }
    }
    //////////////////////////
    try
    {
     SqlConnection con=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["connectionString"]);
     if(this.ddlCata.SelectedIndex==-1)
     {
      this.ddlCata.SelectedIndex=0;
     }
     
     DateTime time=DateTime.Now;
     if(this.txtProductIntroductionDate.Text!=null && this.txtProductIntroductionDate.Text.Length>0)
     {
      time=DateTime.Parse(this.txtProductIntroductionDate.Text);
     }
     string ProductCode=this.txtProductCode.Text;//
     string ProductType=this.ddlCata.SelectedItem.Value;//
     DateTime ProductIntroductionDate=time;
     string ProductName=this.txtProductName.Text;//
     string ProductDescription="";
     if(this.txtProductDescription.Text!=null)
     {
      ProductDescription=this.txtProductDescription.Text;//
     }
     string ProductDetail="";
     if(this.txtDetail.InnerHtml!=null)
     {
      ProductDetail=htmlencode(this.txtDetail.InnerHtml);
     }
     string ProductSize="";
     if(this.txtProductSize.Text!=null)
     {
      ProductSize=this.txtProductSize.Text;//
     }
     string ProductImageURL=name;//
     double UnitPrice=0;
     if(this.txtUnitPrice.Text!=null)
     {
      UnitPrice=double.Parse(this.txtUnitPrice.Text);//
     }
     int OnSale=Int32.Parse(this.ddlOnSale.SelectedItem.Value);

     string strcom="insert into Products ( ProductCode,ProductType,ProductIntroductionDate,ProductName,ProductDescription,ProductDetail,ProductSize,ProductImageURL,UnitPrice,OnSale ) values ( '"+ProductCode+"','"+ProductType+"','"+ProductIntroductionDate+"','"+ProductName+"','"+ProductDescription+"','"+ProductDetail+"','"+ProductSize+"','"+ProductImageURL+"',"+UnitPrice+","+OnSale+")";
     SqlCommand com=new SqlCommand(strcom,con);
     con.Open();
     com.ExecuteNonQuery();
     con.Close();
     this.wc.InnerHtml="<b>添加成功！</b>";
     this.txtProductCode.Text="";
     this.txtProductDescription.Text="";
     this.txtProductIntroductionDate.Text="";
     this.txtProductName.Text="";
     this.txtProductSize.Text="";
     this.txtUnitPrice.Text="";
    }
    catch(Exception ex)
    {     
     Response.Redirect("Error.aspx?error="+ex.Message);
    }
   }
  }
  
  
  
  
  
  
  
  
  
  
  
  
  
  <IMG src='<%= Context.Request.ApplicationPath %>/images/<%#DataBinder.Eval(Container.DataItem, "ProductImageURL")%>'>