Answer Posted / hitesh shrimali

we can submit form by submit(); function of javascript.

for example:
<form name='xyz' method='post'>
<select name='select' onchange="this.form.submit();">
<option value='1'>1</option>
<option value='2'>2</option>
<option value='3'>3</option>
<option value='4'>4</option>
</select>
</form>

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