accessing an ASP HiddenField within a .JS file

Question

I assign a value to an ASP hidden field within the page load but can't access that value in my JQuery. I added an alert as a test and it comes up 'undefined'. Am I making a syntactic error?

<asp:HiddenField runat="server" id="hfID"/>
hfID.Value = "Test";
alert($('#hfID').Val());

Check this [post](https://stackoverflow.com/questions/8908340/get-the-value-of-an-asphiddenfield-using-jquery). The id of asp controls is generated by the view engine. That's why your jquery selector don't work. — 4D1C70, Nov 03 '17 at 21:29

score 0 · Accepted Answer · answered Nov 03 '17 at 21:34

0

Asp.Net Webforms mangles the id you give it to make sure it's unique on the page. You can use class as a selector or modify your jQuery selector so that it's looking for an id that ends in hfID.

$("[id$='hfID']")

answered Nov 03 '17 at 21:34

ScoobyDrew18

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accessing an ASP HiddenField within a .JS file

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