请帮助我，为什么内容页面中的此javascript代码不起作用. [英] help me please , why this javascript code in content page not work .

问题描述

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" Title="Untitled Page" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
      <script language="javascript" type="text/javascript">
                function chvisible(controlId)
                {
                    var control = document.getElementById(controlId);
                    if(control.style.visibility == "visible" || control.style.visibility == "")
                        control.style.visibility = "hidden";
                    else
                        control.style.visibility = "visible";
                }

</script>

 <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
  <input id="Button1" type="button" value="button" onclick="chvisible('TextBox1');"/>


</asp:Content>

推荐答案

而不是control.style.visibility，请尝试control.style.display

要切换显示，请使用阻止"& "none"作为两个值.

样式的Display属性可以隐藏控件，但仍可在需要时保留页面上的控件以在需要时访问客户端.

Instead of control.style.visibility, try, control.style.display

For toggling display, use ''block'' & ''none'' as the two values.

Display property of the style hides the control and yet keeps the control on page to access client side when needed.

hello，

另外，请尝试使用

< input id ="Button1" type ="button" value ="button" onclick ="chvisible(''<％= TextBox1.ClientID％>'');" />

代替

< input id ="Button1" type ="button" value ="button" onclick ="chvisible(" TextBox1);"/>

hello,

Also, try use

<input id="Button1" type="button" value="button" onclick="chvisible(''<%=TextBox1.ClientID %>'');"/>

instead of

<input id="Button1" type="button" value="button" onclick="chvisible(''TextBox1'');"/>

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