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Preventing a checkbox Checked event


Preventing a checkbox Checked event

By : Peter van Dam
Date : November 21 2020, 07:31 AM
will help you I have a checkbox on which I want to ask the user if he is sure or I will cancel the operation. , Set AutoCheck to false. and handle checked state in the Click event.
code :


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How to catch the event when none of checkboxes from group is checked or at least one checkbox is checked and then add a

How to catch the event when none of checkboxes from group is checked or at least one checkbox is checked and then add a


By : Areeb Ahmed Khan
Date : March 29 2020, 07:55 AM
seems to work fine It is pretty simple to accomplish this with the following steps:
Register an event for click on all checkbox. On each click count how many checkbox were checked in group. Then take an action base on the number of checked checkboxes.
code :
$('.accordion-group :checkbox').click(function() {
    var $this = $(this);
    var $group = $this.parents('.accordion-group:first');
    var $checkboxes = $group.find(':checkbox');
    var checks = 0;
    $checkboxes.each(function() {
        if ($(this).is(':checked')) {
            checks++;
        }
    });
    console.log(checks);

    var $heading = $group.find('.accordion-heading');

    if (checks === 0)
        $heading.removeClass('not-empty').addClass('empty');
    else
        $heading.removeClass('empty').addClass('not-empty');
});​
$('.accordion-group :checkbox').click(function() {
    var $group = $(this).parents('.accordion-group:first');
    var checks = $group.find(':checked').length;    
    var $heading = $group.find('.accordion-heading');

    if (checks === 0)
        $heading.removeClass('not-empty').addClass('empty');
    else
        $heading.removeClass('empty').addClass('not-empty');
});​
Checkbox evenhandler for Checked Changed event dosen't trigger when checked state is modified

Checkbox evenhandler for Checked Changed event dosen't trigger when checked state is modified


By : Rebecca
Date : March 29 2020, 07:55 AM
Does that help The CheckBox dosen't trigger oncheckedchanged event: , Set AutoPostBack="true" in aspx
Unwantend checkbox/datasource behavior, content reloads on checkbox.Checked event

Unwantend checkbox/datasource behavior, content reloads on checkbox.Checked event


By : Mehtab
Date : March 29 2020, 07:55 AM
wish helps you TextBox Text property binding will update the binding source on lost focus. Update your binding to:
code :
    <TextBox Name="MyTextBox" Text="{Binding XPath=/Contact/Lastname, UpdateSourceTrigger=PropertyChanged}" Width="100" Height="30" VerticalAlignment="Top" HorizontalAlignment="Left"/>
On Checkbox click event, Unable to remove checked="checked' attribute

On Checkbox click event, Unable to remove checked="checked' attribute


By : user2243526
Date : March 29 2020, 07:55 AM
I hope this helps . I have a Jquery Dialog box within my view, In this dialog box there is a UL LI list which is transformed to a treeview. I retain previous checkbox checked selection by adding the checked attribute in my HTML Text Writer helper. What I am trying to do is to remove the checked attribute once its un-checked. I am able to fire the event and get the value for instance true or false for check or uncheck but I am not able to scuccessfully remove the checked attribute if it was checked. The DOM still have the previous state of checked. , Try this:
code :
function handleClick(e) {
        alert("Click, new value = " + e.target.checked);
        if (e.target.checked == false) {
            e.target.removeAttr('checked');
    }
}
How to block a checkbox to be checked in on a Checked event when some condition is not met?

How to block a checkbox to be checked in on a Checked event when some condition is not met?


By : user1781659
Date : March 29 2020, 07:55 AM
wish help you to fix your issue In the OnChecked event handler, you can add an if block to check if your conditions have met. If the condition is not satisfied, you can clear the IsChecked property.
code :
private void OnChecked(object sender, RoutedEventArgs e)
{
    if (true) // your condition
    {
        ((CheckBox) sender).IsChecked = false;
    }
}
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