复选框控制按钮启用的属性 - ASP.NET [英] Checkbox to Control Button Enabled Property - ASP.NET

问题描述

我想知道我怎么能基于检查复选框的值控制按钮的已启用属性：

I would like to know how I can control the 'Enabled' property of a button based on the 'checked' value of a checkbox:

<asp:CheckBox ID="chkEnableButton" runat="server" />
<asp:Button ID="btnLoadForm" runat="server" />

我可以在服务器端做到这一点很容易 - 但我需要这只能在客户端完成，这意味着JavaScript的。请问OnCheckedChanged属性允许我这样称呼一些JavaScript来做到这一点....还是严格在$ C $调用处理器C-后面？

I can do this very easily on the server side - but I require this to be done on client side only, meaning JavaScript. Would the OnCheckedChanged attribute allow me to call some JavaScript to do this....or is it strictly for calling a handler in the code-behind?

只是为了澄清，当复选框被选中，按钮被启用...当该复选框被选中的按钮被禁用。

Just to clarify, when the checkbox is checked, the button is enabled... when the checkbox is unchecked the button is disabled.

推荐答案

使用Javascript：

Javascript:

<script type="text/javascript">
function checkButt(obj) {
    document.getElementById('<%=btnLoadForm.ClientID%>').disabled = !obj.checked;
}
</script>

Web控件：

<asp:CheckBox ID="chkEnableButton" runat="server" OnClientClick="checkButt(this);" />
<asp:Button ID="btnLoadForm" runat="server" />

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