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Asp.net 如何在代码隐藏中引用 HTML 控件的输入</a></h1> </div> <div class="entry-info" style="padding: 4px 0 0 0;"> <time class="entry-date published"> 发布于12月22日 </time> </div> <div class="intro mb20"> <p>我使用textarea控件允许用户输入文本，然后将文本放入邮箱正文中.在代码隐藏中，引用用户输入的语法是什么？我以为我只能用<code>message.Body = test123.Text;</code>，但这是不承认的.</p> <p>HTML:</p> <pre class="lang-html prettyprint-override"><code><textarea id="TextArea1" cols="20" rows="2" ></textarea> </code></pre> <p>代码隐藏: </p> <pre class="lang-c# prettyprint-override"><code>foreach (string recipient in recipients) { var message = new System.Net.Mail.MailMessage("sender@example.com", recipient); message.Subject = "Hello World!"; message.Body = test123.Text; client.Send(message); } </code></pre> </div> </div> </div> <div class="q-single mt20"> <div class="intro mb20"> <div class="layui-card"> <div class="layui-card-header"><h2>推荐答案</h2></div> <div class="layui-card-body"> <p>你没有使用.NET控件的文本区域.将<code>runat="server"</code>添加到HTML TextArea控件或使用.净控制:</p> <p>试试这个:</p> <pre><code><asp:TextBox id="TextArea1" TextMode="multiline" Columns="50" Rows="5" runat="server" /> </code></pre> <p>然后在您的代码背后引用它:</p> <pre><code>message.Body = TextArea1.Text; </code></pre> </div> <div class="layui-card-footer"> <span id="share"></span> </div> </div> </div> </div> <div class="entry-content mt20"> <h2 class="tip_title">Asp.net相关问答推荐</h2> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/78288448.html" title="ASP.NET MVC项目中的产品采购并发性测试">ASP.NET MVC项目中的产品采购并发性测试</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/20731719.html" title="Web 服务器配置为不列出此目录的内容. asp.net vs 2012 错误？">Web 服务器配置为不列出此目录的内容. asp.net vs 2012 错误？</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/1664271.html" title="创建一个供 ASP.NET 应用程序中的所有线程使用的静态 Regex 对象是否有效？">创建一个供 ASP.NET 应用程序中的所有线程使用的静态 Regex 对象是否有效？</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/39286519.html" title="Azure Service Fabric 是否与 Docker 做同样的事情？">Azure Service Fabric 是否与 Docker 做同样的事情？</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/20735178.html" title="未知的网络方法.参数名称：methodName">未知的网络方法.参数名称：methodName</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/17642630.html" title="登录成功后 User.Identity.IsAuthenticated 为 false">登录成功后 User.Identity.IsAuthenticated 为 false</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/2804040.html" title="如何判断 IIS 是处于 32 位还是 64 位模式">如何判断 IIS 是处于 32 位还是 64 位模式</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/6193010.html" title="如何确定 web.config 中的编译 debug="true"">如何确定 web.config 中的编译 debug="true"</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/26796.html" title="ASP.Net：在共享/静态函数中使用 System.Web.UI.Control.ResolveUrl()">ASP.Net：在共享/静态函数中使用 System.Web.UI.Control.ResolveUrl()</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/1401.html" title="ASP.Net 自定义客户端验证">ASP.Net 自定义客户端验证</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/3098623.html" title="如何将枚举类型绑定到 DropDownList？">如何将枚举类型绑定到 DropDownList？</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/22765626.html" title="MVC5 身份验证中的......与主域之间的信任关系失败">MVC5 身份验证中的......与主域之间的信任关系失败</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/5482.html" title="显示 ModalPopupExtender 时如何指定要运行的 javascript">显示 ModalPopupExtender 时如何指定要运行的 javascript</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/646370.html" title="如何在 ASP.NET 中通过 LAN 访问您的网站">如何在 ASP.NET 中通过 LAN 访问您的网站</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/6707465.html" title="什么时候应该使用 Response.Redirect(url, true)？">什么时候应该使用 Response.Redirect(url, true)？</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/19278759.html" title="Web API 必填参数">Web API 必填参数</a></h3> <h3 class="geekgay layui-elip h11"><a href="https://www.learnfk.com/question/aspnet/5629251.html" title="C# - 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