I have web page with dynamically created Selects (dropdown), the web page created by shell CGI script:
while read line; do
textBoxValue=`printf "$line" | cut -d' ' -f1`
comboBoxValue=`printf "$line" | cut -d' ' -f2`
echo "
<div id="divId$start_id">
<input type="text" name="newTexdtBox$start_id" id="newTextBox" value='$textBoxValue' />
<select name="newComboBox$start_id" id="newComboBox" value="$comboBoxValue">
<option disabled>pls select</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="9">all</option>
</select>
<a href='javascript:void(0)' onclick='return removeThisElement($start_id)'>Remove This</a>
</div>
<a href='javascript:void(0)' onclick='return getSelects()'>getSelects</a>
"
start_id=$((start_id+1))
count=$((count + 1))
done < my_conf
Each Select object has his own attribute value=$comboBoxValue. I would like to set this value attribute as selected when page loaded. Suggested solution is ( http://snipplr.com/view/67752/set-default-value-for-select-dropdown-lists-using-value-attribute/ ) but it seems dont work because this.getAttribute("value") doesnot return anything.
How I can set Default Value for Select (dropdown list) by using value attribute?
try
<select name="newComboBox$start_id" id="newComboBox" value="$comboBoxValue">
<option value="" selected='selected'>pls select</option>
<option value="1">1</option>
If you want to solve it using jQuery
$(function(){
$('select[value]').each(function(){
$('option[value="' + $(this).attr('value') + '"]', this).prop('selected', true);
});
});
Demo: Fiddle
But the optimal solution will be to solve it using html markup itself. (I don't know cgi scripts), but something like
<select name="newComboBox$start_id" id="newComboBox">
<option disabled>pls select</option>
<option #if ($comboBoxValue == 1) { selected="selected"} value="1">1</option>
<option #if ($comboBoxValue == 2) { selected="selected"} value="2">2</option>
<option #if ($comboBoxValue == 3) { selected="selected"} value="3">3</option>
....
</select>
The solution http://snipplr.com/view/67752/set-default-value-for-select-dropdown-lists-using-value-attribute/ is working properly, I just forgot \\ symbol when render function from Shell script (getAttribute(\\"value\\")).
This works fine (when rendering from CGI Shell script):
\$(document).ready(function() {
\$('select[value]').each(function(){
\$(this).val(this.getAttribute(\"value\"));
});
});
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.