在另一个文本框中预览文本时出现问题 [英] Problem in previewing Text in another textBox

问题描述

如何在编写时如何在另一个文本框中预览一个文本框中的数据，我使用了Array但对我没有任何帮助?

< pre lang ="HTML">
< table>
< tr>< td>
< asp:标签Id =问题" Text =问题:" runat =服务器"/>

< asp:TextBox ID ="QuestionTextBox" runat ="server"/>
</td></tr>

< tr>< td>
< asp:标签ID =标签" Text =标签:" runat =服务器"/>
< asp:TextBox ID ="tabTextBox" runat =服务器" Width ="550px"/>
</td></tr>
< tr>< td>
< asp:TextBox ID ="explain" runat ="server" Height ="377px" Width ="673px" onkeypress ="document.getElementById(``PreviewTextBox'').value = document.getElementById(''explain'' ).value"TextMode =" MultiLine"AutoPostBack =" true"/>
</td></tr>
< tr>< td>
< asp:标签ID ="preview" Text ="Preview" runat ="server"/>
</td></tr>
< tr>< td>
< asp:TextBox runat ="server" Height ="300px" Width ="673px"
ReadOnly ="false" ID ="PreviewTextBox"
ontextchanged ="PreviewTextBox_TextChanged" BackColor =#F2F2F2"
TextMode ="MultiLine" AutoPostBack ="true"/>
</td></tr>
</table>
</pre>



这是我尝试过但没有帮助的代码.

How to preview data of one text box in another text box while still writing, i use Array but didn''t works for me any help?

<pre lang="HTML">
<table>
<tr><td>
<asp:Label Id="Question" Text="Question:" runat="server"/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<asp:TextBox ID="QuestionTextBox" runat="server" />
</td></tr>

<tr><td>
<asp:Label ID="tag" Text="Tag:" runat="server" />
<asp:TextBox ID="tabTextBox" runat="server" Width="550px"/>
</td></tr>
<tr><td>
<asp:TextBox ID="explain" runat="server" Height="377px" Width="673px" onkeypress="document.getElementById(''PreviewTextBox'').value = document.getElementById(''explain'').value" TextMode="MultiLine" AutoPostBack="true" />
</td></tr>
<tr><td>
<asp:Label ID="preview" Text="Preview" runat="server"/>
</td></tr>
<tr><td>
<asp:TextBox runat="server" Height="300px" Width="673px"
ReadOnly="false" ID="PreviewTextBox"
ontextchanged="PreviewTextBox_TextChanged" BackColor="#F2F2F2"
TextMode="MultiLine" AutoPostBack="true"/>
</td></tr>
</table>
</pre>



This is the code i have tried but didn''t help.

推荐答案

使用TextBox TextChanged事件.

use TextBox TextChanged event.

您可以尝试一下对其工作进行编码...

在aspx页面中使用javascript

You try this code its work...

Using javascript in aspx page

<asp:TextBox ID="TextBox1" runat="server" onkeyup="document.getElementById('TextBox2').value = document.getElementById('TextBox1').value"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>

或

启用Autopostback属性为true，然后在codebehind中编写此代码

TextChageEevent

or

Enable Autopostback property is true then write this code in codebehind

TextChageEevent

textbox2.text=textbox1.text;

快乐的编码....

Happy coding....

在TextChageEevent上
textbox1.text = textbox2.text;

On TextChageEevent
textbox1.text=textbox2.text;

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