I am using the excellent jQuery MultiSelect plugin as advertised here: http://abeautifulsite.net/notebook/62
The problem I have is that I would like to submit the form when the values have changed. Having all sorts of trouble getting this one working, does anyone have insight into how to achieve this?
Also open to alternative jQuery plugins/scripts if there are any that handle this nicely.
Have you tried attaching it directly to the multiselect callback?
$(document).ready( function() {
$("#control_id").multiSelect(options, function() {
$('#myFormId').submit();
});
});
You could try patching jQueryMultiSelect (Untested)
Line:34 --
multiSelect: function(o, callback ) {
Line:34 ++
multiSelect: function(o, callback, postback) {
Line 221: ++
if( postback ) postback($(this));
Full Codez
if(jQuery) (function($){
$.extend($.fn, {
multiSelect: function(o, callback, postback) {
// Default options
if( !o ) var o = {};
if( o.selectAll == undefined ) o.selectAll = true;
if( o.selectAllText == undefined ) o.selectAllText = "Select All";
if( o.noneSelected == undefined ) o.noneSelected = 'Select options';
if( o.oneOrMoreSelected == undefined ) o.oneOrMoreSelected = '% selected';
// Initialize each multiSelect
$(this).each( function() {
var select = $(this);
var html = '<input type="text" readonly="readonly" class="multiSelect" value="" style="cursor: default;" />';
html += '<div class="multiSelectOptions" style="position: absolute; z-index: 99999; display: none;">';
if( o.selectAll ) html += '<label class="selectAll"><input type="checkbox" class="selectAll" />' + o.selectAllText + '</label>';
$(select).find('OPTION').each( function() {
if( $(this).val() != '' ) {
html += '<label><input type="checkbox" name="' + $(select).attr('name') + '" value="' + $(this).val() + '"';
if( $(this).attr('selected') ) html += ' checked="checked"';
html += ' />' + $(this).html() + '</label>';
}
});
html += '</div>';
$(select).after(html);
// Events
$(select).next('.multiSelect').mouseover( function() {
$(this).addClass('hover');
}).mouseout( function() {
$(this).removeClass('hover');
}).click( function() {
// Show/hide on click
if( $(this).hasClass('active') ) {
$(this).multiSelectOptionsHide();
} else {
$(this).multiSelectOptionsShow();
}
return false;
}).focus( function() {
// So it can be styled with CSS
$(this).addClass('focus');
}).blur( function() {
// So it can be styled with CSS
$(this).removeClass('focus');
});
// Determine if Select All should be checked initially
if( o.selectAll ) {
var sa = true;
$(select).next('.multiSelect').next('.multiSelectOptions').find('INPUT:checkbox').not('.selectAll').each( function() {
if( !$(this).attr('checked') ) sa = false;
});
if( sa ) $(select).next('.multiSelect').next('.multiSelectOptions').find('INPUT.selectAll').attr('checked', true).parent().addClass('checked');
}
// Handle Select All
$(select).next('.multiSelect').next('.multiSelectOptions').find('INPUT.selectAll').click( function() {
if( $(this).attr('checked') == true ) $(this).parent().parent().find('INPUT:checkbox').attr('checked', true).parent().addClass('checked'); else $(this).parent().parent().find('INPUT:checkbox').attr('checked', false).parent().removeClass('checked');
});
// Handle checkboxes
$(select).next('.multiSelect').next('.multiSelectOptions').find('INPUT:checkbox').click( function() {
$(this).parent().parent().multiSelectUpdateSelected(o);
$(this).parent().parent().find('LABEL').removeClass('checked').find('INPUT:checked').parent().addClass('checked');
$(this).parent().parent().prev('.multiSelect').focus();
if( !$(this).attr('checked') ) $(this).parent().parent().find('INPUT:checkbox.selectAll').attr('checked', false).parent().removeClass('checked');
if( callback ) callback($(this));
});
// Initial display
$(select).next('.multiSelect').next('.multiSelectOptions').each( function() {
$(this).multiSelectUpdateSelected(o);
$(this).find('INPUT:checked').parent().addClass('checked');
});
// Handle hovers
$(select).next('.multiSelect').next('.multiSelectOptions').find('LABEL').mouseover( function() {
$(this).parent().find('LABEL').removeClass('hover');
$(this).addClass('hover');
}).mouseout( function() {
$(this).parent().find('LABEL').removeClass('hover');
});
// Keyboard
$(select).next('.multiSelect').keydown( function(e) {
// Is dropdown visible?
if( $(this).next('.multiSelectOptions').is(':visible') ) {
// Dropdown is visible
// Tab
if( e.keyCode == 9 ) {
$(this).addClass('focus').trigger('click'); // esc, left, right - hide
$(this).focus().next(':input').focus();
return true;
}
// ESC, Left, Right
if( e.keyCode == 27 || e.keyCode == 37 || e.keyCode == 39 ) {
// Hide dropdown
$(this).addClass('focus').trigger('click');
}
// Down
if( e.keyCode == 40 ) {
if( !$(this).next('.multiSelectOptions').find('LABEL').hasClass('hover') ) {
// Default to first item
$(this).next('.multiSelectOptions').find('LABEL:first').addClass('hover');
} else {
// Move down, cycle to top if on bottom
$(this).next('.multiSelectOptions').find('LABEL.hover').removeClass('hover').next('LABEL').addClass('hover');
if( !$(this).next('.multiSelectOptions').find('LABEL').hasClass('hover') ) {
$(this).next('.multiSelectOptions').find('LABEL:first').addClass('hover');
}
}
return false;
}
// Up
if( e.keyCode == 38 ) {
if( !$(this).next('.multiSelectOptions').find('LABEL').hasClass('hover') ) {
// Default to first item
$(this).next('.multiSelectOptions').find('LABEL:first').addClass('hover');
} else {
// Move up, cycle to bottom if on top
$(this).next('.multiSelectOptions').find('LABEL.hover').removeClass('hover').prev('LABEL').addClass('hover');
if( !$(this).next('.multiSelectOptions').find('LABEL').hasClass('hover') ) {
$(this).next('.multiSelectOptions').find('LABEL:last').addClass('hover');
}
}
return false;
}
// Enter, Space
if( e.keyCode == 13 || e.keyCode == 32 ) {
// Select All
if( $(this).next('.multiSelectOptions').find('LABEL.hover INPUT:checkbox').hasClass('selectAll') ) {
if( $(this).next('.multiSelectOptions').find('LABEL.hover INPUT:checkbox').attr('checked') ) {
// Uncheck all
$(this).next('.multiSelectOptions').find('INPUT:checkbox').attr('checked', false).parent().removeClass('checked');
} else {
// Check all
$(this).next('.multiSelectOptions').find('INPUT:checkbox').attr('checked', true).parent().addClass('checked');
}
$(this).next('.multiSelectOptions').multiSelectUpdateSelected(o);
if( callback ) callback($(this));
return false;
}
// Other checkboxes
if( $(this).next('.multiSelectOptions').find('LABEL.hover INPUT:checkbox').attr('checked') ) {
// Uncheck
$(this).next('.multiSelectOptions').find('LABEL.hover INPUT:checkbox').attr('checked', false);
$(this).next('.multiSelectOptions').multiSelectUpdateSelected(o);
$(this).next('.multiSelectOptions').find('LABEL').removeClass('checked').find('INPUT:checked').parent().addClass('checked');
// Select all status can't be checked at this point
$(this).next('.multiSelectOptions').find('INPUT:checkbox.selectAll').attr('checked', false).parent().removeClass('checked');
if( callback ) callback($(this));
} else {
// Check
$(this).next('.multiSelectOptions').find('LABEL.hover INPUT:checkbox').attr('checked', true);
$(this).next('.multiSelectOptions').multiSelectUpdateSelected(o);
$(this).next('.multiSelectOptions').find('LABEL').removeClass('checked').find('INPUT:checked').parent().addClass('checked');
if( callback ) callback($(this));
}
}
return false;
} else {
// Dropdown is not visible
if( e.keyCode == 38 || e.keyCode == 40 || e.keyCode == 13 || e.keyCode == 32 ) { // down, enter, space - show
// Show dropdown
$(this).removeClass('focus').trigger('click');
$(this).next('.multiSelectOptions').find('LABEL:first').addClass('hover');
return false;
}
// Tab key
if( e.keyCode == 9 ) {
// Shift focus to next INPUT element on page
$(this).focus().next(':input').focus();
return true;
}
}
// Prevent enter key from submitting form
if( e.keyCode == 13 ) return false;
});
// Eliminate the original form element
$(select).remove();
});
},
// Hide the dropdown
multiSelectOptionsHide: function() {
$(this).removeClass('active').next('.multiSelectOptions').hide();
if( postback ) postback($(this));
},
// Show the dropdown
multiSelectOptionsShow: function() {
// Hide any open option boxes
$('.multiSelect').multiSelectOptionsHide();
$(this).next('.multiSelectOptions').find('LABEL').removeClass('hover');
$(this).addClass('active').next('.multiSelectOptions').show();
// Position it
var offset = $(this).offset();
$(this).next('.multiSelectOptions').css({ top: offset.top + $(this).outerHeight() + 'px' });
$(this).next('.multiSelectOptions').css({ left: offset.left + 'px' });
// Disappear on hover out
multiSelectCurrent = $(this);
var timer = '';
$(this).next('.multiSelectOptions').hover( function() {
clearTimeout(timer);
}, function() {
timer = setTimeout('$(multiSelectCurrent).multiSelectOptionsHide(); $(multiSelectCurrent).unbind("hover");', 250);
});
},
// Update the textbox with the total number of selected items
multiSelectUpdateSelected: function(o) {
var i = 0, s = '';
$(this).find('INPUT:checkbox:checked').not('.selectAll').each( function() {
i++;
})
if( i == 0 ) {
$(this).prev('INPUT.multiSelect').val( o.noneSelected );
} else {
if( o.oneOrMoreSelected == '*' ) {
var display = '';
$(this).find('INPUT:checkbox:checked').each( function() {
if( $(this).parent().text() != o.selectAllText ) display = display + $(this).parent().text() + ', ';
});
display = display.substr(0, display.length - 2);
$(this).prev('INPUT.multiSelect').val( display );
} else {
$(this).prev('INPUT.multiSelect').val( o.oneOrMoreSelected.replace('%', i) );
}
}
}
});
})(jQuery);
i just come across the exact problem. is there any update? or can the hack be shared?
I m also facing same problem on page post back control is not maintaining its viewstate