如何在母版页中为内容占位符编写JavaScript代码?如何在Java脚本中访问这些控件? [英] How to write javascript code for content place holder in master pages?& how to acess those controls in java script?

问题描述

如何在母版页中为内容占位符编写javascript代码?如何在Java脚本中访问这些控件?

实际上，我有一个母版页(例如master1.master)，并且在其中有一个内容占位符，其中包含两个控件，如复选框和文本框.


我的要求是，当我选中一个复选框时，必须禁用文本框，而当未选中时，必须启用文本框.


因此，我需要一个Java脚本代码来执行此操作.

How to write javascript code for content place holder in master pages? how to acess those controls in java script?

Actually i have a master page(ex master1.master) and in this i have a content place holder with two controls like checkbox and a textbox.


My reqirement is when i check a checkbox the textbox must disable and when unchecked ,textbox must enable.


so, i need a java script code to do this.

推荐答案

它非常简单.请按照将解决您的问题的步骤进行操作.

第一步:在您的母版页中，编写以下javascript函数:


函数EnableDisableTextBox(CheckBoxClientId，TextBoxClientId)
{
var chkBox = document.getElementById(CheckBoxClientId);
if(chkBox& document.getElementById(TextBoxClientId))
{
if(chkBox.checked)
document.getElementById(TextBoxClientId).disabled = true;
其他
document.getElementById(TextBoxClientId).disabled = false;
}
返回false;
}

步骤2:在您的MasterPage的CodeBehind中，在页面加载事件中编写以下代码.


checkbox.Attributes.Add("onclick"，"EnableDisableTextBox(""+ checkbox.ClientID +"''，" + textBox.ClientID +'')");

尝试执行并检查.即使单击复选框，它也不会回发.启用和禁用将在客户端级别完成.试试这个:thumbsup:

Hi,

Its very simple. Follow the steps which will solve ur problem.

Step1: In ur master page write the following javascript function:


function EnableDisableTextBox(CheckBoxClientId,TextBoxClientId)
{
var chkBox = document.getElementById(CheckBoxClientId);
if(chkBox && document.getElementById(TextBoxClientId))
{
if(chkBox.checked)
document.getElementById(TextBoxClientId).disabled = true;
else
document.getElementById(TextBoxClientId).disabled = false;
}
return false;
}

Step:2 In the CodeBehind of ur MasterPage write the following code on page load event.


checkbox.Attributes.Add("onclick","EnableDisableTextBox(''" + checkbox.ClientID + "'',''" + textBox.ClientID + "'')");

Try to execute and check. Even while click of the checkbox it will not postback also. The enable and disable will be done at client level. Try this:thumbsup:

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