一个关于上传的问题！

Question

private void cmdUpFile_Click(object sender, System.EventArgs e)
        {
            lblErr.Visible = false;
            Bitmap empPic;
            try
            {
                empPic = new Bitmap( File1.PostedFile.InputStream );
            }
            catch
            {
                lblErr.Text = "错误文件格式，请重试！！";
                lblErr.Visible = true;
                return;
            }            lnkPic.Src = File1.PostedFile.FileName;
            cmdOK.Visible = true;
        }        private void cmdOK_Click(object sender, System.Web.UI.ImageClickEventArgs e)
        {
            if ( this.EmpRightCode >= 3 )
            {
                Bitmap empPic;
                try
                {
                    empPic = new Bitmap(lnkPic.Src);
                }
                catch(Exception ex)
                {
                    
                    lblErr.Text = ex.ToString();
                    lblErr.Visible = true;
                    return;
                }                Bitmap picSmall = new Bitmap( empPic,110,130 );
                MemoryStream stream = new MemoryStream();
                picSmall.Save( stream,System.Drawing.Imaging.ImageFormat.Jpeg );
                byte[] byteArray = stream.ToArray();                int empID = Convert.ToInt16( lblEmpID.Text,10 );
                
                MrBaseInf PhotoAccess = new MrBaseInf();
                PhotoAccess.UpdateEmpPic( empID,byteArray );
                Response.Redirect("empbase.aspx?empid="+lblEmpID.Text,false);
            }
            else
            {
                JScript.Alert("您没有权限进行此操作！");
            }
        }
为什么运行后，会提示无效的参数，请大虾们帮帮忙，小人不胜感激！！～

Answer 1

先单步调试下，看看哪里错了提示啊。