如何使用JavaScript从ASP.NET文本框中获取自定义属性？

Question

我已经创建了一个自定义文本框，其属性为“ key”（ASP.NET C＃）。我想使用Java脚本获取此属性“ key”的值。我该怎么做？

Answer 1

Not sure what you are asking.

if you have a textbox rendered like so:

<input type="text" id="foo" key="somekey" text="Hello" />

You could get the value of "key" in JS like so:

document.getElementById('foo').getAttribute('key')

Answer 2

If you are using jquery than for this will help you.

$("#tb1").attr("key")

for this textbox

<input type="text" id="tb1" key="mykey" text="" />