【大神级别问题】c# ASP.NET 不存在textbox1
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我明明有在页面上放了个teb 但是代码程序里面就一直说这个，问了好多人懂不懂，爱爱爱 ！！！不知道哪个大神懂呢
把你的Form的Designer.cs全文贴出来看
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Login" %>
<!DOCTYPE html>
<br> .*<br> { <br> margin:0 aoto; <br> }</p> <pre><code>.hd { font-weight :600; font-size:inherit ; } table { margin:0 aoto; } td { text-align:right; } .style1 { width: 80px; } .style2 { font-size: medium; } .style3 { color: #FF0000; } </style> </code></pre> <p></head><br> <body></p> <div></div> <pre><code><form id="form1" runat="server"; height="80px"> <div style="height: 180px; width: 1829px"></div> <div id="head" class="hd" align="center" > <span class="style2"><span class="style3">连接客服要验证码，QQ：896351151 </span> </code></pre> <p><br class="style3" /><br> </span><br> <br hright="30px" />淘宝运营技术交流QQ群：129577203<br> </div></p> <pre><code><div style="height: 30px; width: 1829px"></div> <div id="id"> <table align="center" > <tr> <td>电影1验证码</td> <td class="style2"><asp:TextBox ID="TextBox1" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button2" runat="server" Height="25px" OnClick="Button1_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影2-卖家自己拍后再付款》验证码</td> <td class="style2"><asp:TextBox ID="TextBox2" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button1" runat="server" Height="25px" OnClick="Button2_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影3-从淘助手进入付款》验证码</td> <td class="style2"><asp:TextBox ID="TextBox3" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button3" runat="server" Height="25px" OnClick="Button3_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影4-窗口变小再付款》验证码</td> <td class="style2"><asp:TextBox ID="TextBox4" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button4" runat="server" Height="25px" OnClick="Button4_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影5-付款后却显示失败》验证码</td> <td class="style2"><asp:TextBox ID="TextBox5" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button5" runat="server" Height="25px" OnClick="Button5_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影6-付款成功扣款却大于扣款额》验证码</td> <td class="style2"><asp:TextBox ID="TextBox6" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button6" runat="server" Height="25px" OnClick="Button6_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影7-付款成功退款却退至支付宝》验证码</td> <td class="style2"><asp:TextBox ID="TextBox7" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button7" runat="server" Height="25px" OnClick="Button7_Click" Text="提 交" Width="80px" /></td> </tr> </table> </div> </form> </code></pre> <p></body><br> </html></p> <pre><code> </code></pre>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Login" %>
<!DOCTYPE html>
<br> .*<br> { <br> margin:0 aoto; <br> }</p> <pre><code>.hd { font-weight :600; font-size:inherit ; } table { margin:0 aoto; } td { text-align:right; } .style1 { width: 80px; } .style2 { font-size: medium; } .style3 { color: #FF0000; } </style> </code></pre> <p></head><br> <body></p> <div></div> <pre><code><form id="form1" runat="server"; height="80px"> <div style="height: 180px; width: 1829px"></div> <div id="head" class="hd" align="center" > <span class="style2"><span class="style3">连接客服要验证码，QQ：896351151 </span> </code></pre> <p><br class="style3" /><br> </span><br> <br hright="30px" />淘宝运营技术交流QQ群：129577203<br> </div></p> <pre><code><div style="height: 30px; width: 1829px"></div> <div id="id"> <table align="center" > <tr> <td>电影1验证码</td> <td class="style2"><asp:TextBox ID="TextBox1" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button2" runat="server" Height="25px" OnClick="Button1_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影2-卖家自己拍后再付款》验证码</td> <td class="style2"><asp:TextBox ID="TextBox2" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button1" runat="server" Height="25px" OnClick="Button2_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影3-从淘助手进入付款》验证码</td> <td class="style2"><asp:TextBox ID="TextBox3" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button3" runat="server" Height="25px" OnClick="Button3_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影4-窗口变小再付款》验证码</td> <td class="style2"><asp:TextBox ID="TextBox4" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button4" runat="server" Height="25px" OnClick="Button4_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影5-付款后却显示失败》验证码</td> <td class="style2"><asp:TextBox ID="TextBox5" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button5" runat="server" Height="25px" OnClick="Button5_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影6-付款成功扣款却大于扣款额》验证码</td> <td class="style2"><asp:TextBox ID="TextBox6" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button6" runat="server" Height="25px" OnClick="Button6_Click" Text="提 交" Width="80px" /></td> </tr> <tr> <td>《电影7-付款成功退款却退至支付宝》验证码</td> <td class="style2"><asp:TextBox ID="TextBox7" runat="server" Width="206px" ></asp:TextBox></td> <td class="style1"> <asp:Button ID="Button7" runat="server" Height="25px" OnClick="Button7_Click" Text="提 交" Width="80px" /></td> </tr> </table> </div> </form> </code></pre> <p></body><br> </html></p>
我没看到哪里有tb2这个TextBox服务端控件。
id值绑定错了，换一下就就可以了
控件名字要一致，tb2,teb1....
找不到控件的原因，除了后置代码头部设置不准确外，还一个常见的就是控件名字（Id)不一致。
你的代码里，那个控件的变量名
改了
看下aspx文件的Inherits，确定下是不是多个aspx文件引用的同一个Inherits。