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Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /home/project-web/jquery4php/lib/YepSua/Labs/RIA/jQuery4PHP/YsJQueryBuilder.php on line 127

Max Checked

<button id="btnOpenDialog">Show Demo</button>
<?php echo YsUIDialog::initWidget('dialogId',
                                  'style="display:none"
                                   title="Demo"')?>

<span id="multiselectLog"></span>
<br/>
<select id="optGroup" name="example-optgroup" multiple="multiple" size="5">
  <optgroup label="Group One">
    <option value="option1">Option 1</option>
    <option value="option2">Option 2</option>
    <option value="option3">Option 3</option>
  </optgroup>
  <optgroup label="Group Two">
    <option value="option4">Option 4</option>
    <option value="option5">Option 5</option>
    <option value="option6">Option 6</option>
    <option value="option7">Option 7</option>
  </optgroup>
</select>

<?php echo YsUIDialog::endWidget() ?>

<script language="javascript" type="text/javascript">
  
  var warning = jQuery("#multiselectLog");
  
  function maxChecked(event, ui){
    if( jQuery(this).multiselect("widget").find("input:checked").length > 2 ){
    warning.addClass("error").removeClass("success").html("You can only check two checkboxes!");
    return false;
    } else {
    warning.addClass("success").removeClass("error").html("Check a few boxes.");
    }
  }
  
</script>

<?php
echo
YsJQuery::newInstance()
  ->onClick()
  ->in('#btnOpenDialog')
  ->execute(
    YsUIDialog::build('#dialogId')
      ->_modal(true)
      ->_height(400)
      ->_buttons(array(
          'Ok' => new YsJsFunction('alert("Hello world")'),
          'Close' =>  new YsJsFunction(YsUIDialog::close('this')))
       ),
    YsUIMultiSelect::build()->in('#optGroup')
      ->_click(YsJsFunction::call('maxChecked'))
  );
?>

Show Demo