Using #local_variable in CSHTML code in asp-page - razor-pages

I develop ASP.Net Core 2.1 RazorPages web application. I want parametrize the the value of asp-page tag helper.
So I use following code in cshtml file. There is a del_link local variable defined in begining of file. This variable is late used as parameter for second asp-page tag helper.
#page
#{
string del_link = "/UnloadDelete";
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<div>
<a asp-page="/UnloadEdit">Details</a>
<a asp-page=#del_link>Delete</a>
</div>
</body>
</html>
ASP.Net Razor generate following HTML code.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<div>
Details
Delete
</div>
</body>
</html>
As you can see in HTML code, asp-page="/UnloadEdit" is properly rendered to HTML code, but asp-page=#del not, it is rendered to <a href="">. How I can use local variable for asp-page tag helper in Razor Pages?
Thanks in advance.

You must pass a page name to the asp-page attribute. So what you are trying to do is not supported. If #del_link renders a relative URL, you can pass that to the href attribute instead. There may be other suitable solutions, depending on why you feel the need to use #del_link at all.

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