ASP：文本框只读 [英] asp:textbox readonly

问题描述

在ASP文件中，我有两个ASP：文本框

In asp file I have two asp:textbox

<asp:TextBox ID="textValue" runat="server" Width="100px"/>
<asp:TextBox ID="textValue2" runat="server" Width="100px" ReadOnly="true"/>

然后我通过JavaScript设置的值获得

then I set the value via javascript getting

<asp:TextBox ID="textValue" runat="server" Width="100px" value="aaa"/>
<asp:TextBox ID="textValue2" runat="server" Width="100px" ReadOnly="true" value="bbb"/>

但刷新网页时终于得到

but when refresh the webpage finally get

<asp:TextBox ID="textValue" runat="server" Width="100px" value="aaa"/>
<asp:TextBox ID="textValue2" runat="server" Width="100px" ReadOnly="true"/>

为什么值BBB丢失？我怎样才能避免这种情况？

Why the value bbb is "lost"? How can I avoid this?

推荐答案

BBB被贴后背，但.NET不会从填充回发数据的只读文本框。您可以自己从的Page_Load（）方法抓住了表单数据手动填充文本框如下：

"bbb" is being posted back, but .NET will not populate a read-only textbox from postback data. You can manually populate the text box by grabbing the form data yourself from the Page_Load() method as follows:

textValue2.Text =的Request.Form [textValue2.UniqueID];

这篇关于ASP：文本框只读的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！