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How do I unhide a hidden asp element via JavaScript?

I have an ASP element. It was hidden in the aspx.cs page as such:

item.Visible = false;

After this is done, based on an event which I use JavaScript, I have to unhide this item.

The problem is that I cannot find this item on the DOM because it's hidden so I can't use document.getElementByID() .

My question is, how do I select a hidden ASP control in JavaScript?

An element with Visible = false is never rendered on the page, so you'll never be able to access it in JavaScript.

I would recommend hiding the element with style="display:none" , like this:

item.Style.Add("display", "none");

Change the code to give it a hidden style instead, then it's easy

item.Style.Add("display", "none");

//javascript
document.getElementById("id").style.display = "block";

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