$("#txtquery").attr("disabled","disabled") sets textbox value to blank

Question

I want to restrict user to enter values in textbox at particular button click otherwise set disabled false. If I set $("#txtquery").attr("disabled","disabled"); it sets text box to blank. I want to retain the text if readonly is toggled.

Answer 1

$('#txtquery').attr('readonly', 'readonly');

Answer 2

Just use:

$('#txtquery').attr('readonly', 'readonly');

to disallow further editing.