onchange – Page 3 – Tarik Billa

How can I distinguish whether Switch,Checkbox Value is changed by user or programmatically (including by retention)?

December 18, 2022 by Tarik

Answer 2: A very simple answer: Use on OnClickListener instead of OnCheckedChangeListener someCheckBox.setOnClickListener(new OnClickListener(){ @Override public void onClick(View v) { // you might keep a reference to the CheckBox to avoid this class cast boolean checked = ((CheckBox)v).isChecked(); setSomeBoolean(checked); } }); Now you only pick up click events and don’t have to worry about programmatic … Read more

Trigger change() event when setting ‘s value with val() function

December 1, 2022 by Tarik

I had a very similar issue and I’m not quite sure what you’re having a problem with, as your suggested code worked great for me. It immediately (a requirement of yours) triggers the following change code. $(‘#selectField’).change(function(){ if($(‘#selectField’).val() == ‘N’){ $(‘#secondaryInput’).hide(); } else { $(‘#secondaryInput’).show(); } }); Then I take the value from the database … Read more

React Checkbox not sending onChange

October 17, 2022 by Tarik

To get the checked state of your checkbox the path would be: this.refs.complete.state.checked The alternative is to get it from the event passed into the handleChange method: event.target.checked

How do I implement onchange of with jQuery?

October 17, 2022 by Tarik

As @pimvdb said in his comment, Note that change will only fire when the input element has lost focus. There is also the input event which fires whenever the textbox updates without it needing to lose focus. Unlike key events it also works for pasting/dragging text. (See documentation.) This is so useful, it is worth … Read more

How to pass parameters on onChange of html select

October 6, 2022 by Tarik

function getComboA(selectObject) { var value = selectObject.value; console.log(value); } <select id=”comboA” onchange=”getComboA(this)”> <option value=””>Select combo</option> <option value=”Value1″>Text1</option> <option value=”Value2″>Text2</option> <option value=”Value3″>Text3</option> </select> The above example gets you the selected value of combo box on OnChange event.

Counting Chars in EditText Changed Listener

October 3, 2022 by Tarik

Use s.length() The following was once suggested in one of the answers, but its very inefficient textMessage.getText().toString().length()

jQuery – Detect value change on hidden input field

September 29, 2022 by Tarik

So this is way late, but I’ve discovered an answer, in case it becomes useful to anyone who comes across this thread. Changes in value to hidden elements don’t automatically fire the .change() event. So, wherever it is that you’re setting that value, you also have to tell jQuery to trigger it. function setUserID(myValue) { … Read more

onchange event on input type=range is not triggering in Firefox while dragging

September 28, 2022 by Tarik

Apparently Chrome and Safari are wrong: onchange should only be triggered when the user releases the mouse. To get continuous updates, you should use the oninput event, which will capture live updates in Firefox, Safari and Chrome, both from the mouse and the keyboard. However, oninput is not supported in IE10, so your best bet … Read more

android on Text Change Listener

September 26, 2022 by Tarik

You can add a check to only clear when the text in the field is not empty (i.e when the length is different than 0). field1.addTextChangedListener(new TextWatcher() { @Override public void afterTextChanged(Editable s) {} @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int … Read more