ASP.NET Webforms: Dynamically add asp button to page but is not visible

Question

From an asp button click event I’m adding innerhtml to a div tag. This inner html in an asp button, however, after adding it, its not visible even though when I inspect the page it is there.

and this is the div tag I'm adding it to:

and here you can see it was added but its not visible:

How can I make this work as expected? Thanks.

Answer 1

Hi @moondaddy ,

According to your description, if you need to add a control to the page, you can create a control and then add it to the corresponding parent control.

But these dynamically created controls will become invalid after postback, so you need to recreate them in Page_Load() or Page_Init().

This is simple demo:

Result:

Best regards,
Xudong Peng

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