本文介绍了lblmessage在当前上下文中不存在的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
请帮帮我.. 标签在UI中有id ..但在代码后面如果我使用标签的id ...它是显示错误说lblmessage在当前上下文中不存在..
please help me out.. The label has id in the UI.. but in code behind if i use the id of label...it is showing error saying lblmessage doesn''t exist in the current context..
<asp:Label runat="server" ID="lblMessage" Text="" class="multi">如果我在后面的代码中使用上面的id我得到错误
if i use the above id in code behind am getting error
lblMessage.Text += fileName + "Uploaded";推荐答案
您可能缺少结束标记:你有没有删除结尾的斜杠? Probably, you are missing the closing tag: Have you deleted the slash from the end? <asp:Label runat="server" ID="lblMessage" Text="" class="multi">
成为
Becomes
<asp:Label runat="server" ID="lblMessage" Text="" class="multi"/>
如果您没有错过结束标签检查是否啦bel具有与您尝试在.cs文件中使用的相同ID。 否则删除此添加新标签给它一个不同的名称'''并构建解决方案,之后使用它。 cs文件 if you are not missing the closing tag check if label has same id as you are trying to use in .cs file. otherwise delete this add a new label give it a different name '''' and build the solution and after that use it in .cs file
构建您的网站,然后在代码后面使用标签。有时它可以工作。 build your website once then use label in code behind. sometimes it works.
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lblmessage在当前上下文中不存在
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