代码如下:<%@ Page Language="C#" ResponseEncoding="gb2312" %> <%@ Import Namespace="System" %> <%@ Import Namespace="System.IO" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Drawing.Imaging" %> <script runat="server"> void Page_Load(Object sender, EventArgs e) { if (!Page.IsPostBack) { ImgPreview.Visible = false; } } void GetThumbnailImage(int width, int height, string...
1）前台 代码如下:<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:UpdatePanel ID="UpdateP...
如图: 点击浏览,选择图片之后,右面显示图片第一步: 创建CtFileUpLoad.ascx 代码如下:<%@ Control Language="C#" AutoEventWireup="true" CodeFile="CtFileUpLoad.ascx.cs" Inherits="WebParts_CtFileUpLoad" %> <table cellpadding="0" cellspacing="0"> <tr> <td> <iframe src="/WebParts/FileUpLoad.aspx?<%=ParsValue %>" width="240px" height="22px" frameborder="0" scrolling="no"></iframe> </td> <td> <asp:TextBox runat...
代码如下:<table style="width: 100%"> <tr> <td> <asp:ValidationSummary ID="ValidationSummary1" runat="server" /> <br /> <asp:FileUpload ID="FileUpload1" runat="server" /> <asp:Button ID="btn_upload" runat="server" OnClick="btn_upload_Click" Text="Upload" /> <asp:CustomValidator ID="CustomValidator1" runat="server" ControlToValidate="FileUpload1" Display="Static" ErrorMessage="You should only ca...
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>无标题页</title> </head> <body> <form id="form1" runat="server"> <div> <input id="File1" runat="server" typ...
代码如下:<%@ Page Language="C#" ResponseEncoding="gb2312" %> <%@ import Namespace="System" %> <%@ import Namespace="System.IO" %> <%@ import Namespace="System.Drawing" %> <%@ import Namespace="System.Drawing.Imaging" %> <script runat="server"> void Page_Load(Object sender, EventArgs e) { if(!Page.IsPostBack) { ImgPreview.Visible=false; } } void GetThumbnailImage(int width,int height,string st...
这里演示如何在MVC WEB应用程序如何上传图片到数据库以及如何在WEB页面上显示图片。数据库表对应整个Model类，不单图片数据一个字段，我们从数据表的定义开始：CREATE TABLE [dbo].[Products] ([ProductID] INT IDENTITY (1, 1) NOT NULL,[Name] NVARCHAR (MAX) NOT NULL,[Description] NVARCHAR (MAX) NOT NULL,[Price] DECIMAL (18, 2) NOT NULL,[Category] NVARCHAR (MAX) NOT NULL...
using System; using System.Collections; using System.Collections.Generic; using System.Diagnostics; using System.Globalization; using System.IO; using System.Net; using System.Net.Http; using System.Net.Http.Headers; using System.Threading.Tasks; using System.Web; using System.Web.Http;namespace cms.Web.API {public class CeshiController : ApiController{public async Task<IHttpActionResult> PostUplo...
原文链接：http://www.cnblogs.com/hakuci/archive/2008/03/23/1118538.html此方法适合ASP.NET(C#)＋Oracle Oracle 表中字段类型为Blob #region 上传文件(二进制) ??????? // ??????? static public Byte[] FileToBinary(FileUpload hifile) ??????? { ??????????? try ??????????? { ??????????????? if (hifile.HasFile) ??????????????? { ??????????????????? if (IsAllowedExtension(hifile)) ??????????????????? { ????????...
原文:在ASP.NET Core中给上传图片功能添加水印在传统的.NET框架中，我们给图片添加水印有的是通过HttpModules或者是HttpHandler，然后可以通过以下代码添加水印:var image = new WebImage(imageBytes); image.AddTextWatermark(Settings.Instance.WatermarkText, "White", Settings.Instance.WatermarkFontSize,opacity: Settings.Instance.WatermarkTextOpacityPercentage );但是在.NET Core中不允许你这么干了，因为没有WebImage...
在传统的.NET框架中，我们给图片添加水印有的是通过HttpModules或者是HttpHandler，然后可以通过以下代码添加水印:var image = new WebImage(imageBytes); image.AddTextWatermark(Settings.Instance.WatermarkText, "White", Settings.Instance.WatermarkFontSize,opacity: Settings.Instance.WatermarkTextOpacityPercentage );但是在.NET Core中不允许你这么干了，因为没有WebImage这个类型了。在现在的.NET Core中我们都是通过...