input – Page 15 – Tarik Billa

Java JTextField with input hint

May 10, 2023 by Tarik

You could create your own: import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.FocusEvent; import java.awt.event.FocusListener; import javax.swing.*; public class Main { public static void main(String[] args) { final JFrame frame = new JFrame(); frame.setLayout(new BorderLayout()); final JTextField textFieldA = new HintTextField(“A hint here”); final JTextField textFieldB = new HintTextField(“Another hint here”); frame.add(textFieldA, BorderLayout.NORTH); frame.add(textFieldB, BorderLayout.CENTER); … Read more

How can I execute a function on pressing the enter key in an field?

May 7, 2023 by Tarik

You can use this: var wage = document.getElementById(“wage”); wage.addEventListener(“keydown”, function (e) { if (e.code === “Enter”) { //checks whether the pressed key is “Enter” validate(e); } }); function validate(e) { var text = e.target.value; //validation of the input… } Live demo here

How to know if the text in a textbox is selected?

May 7, 2023 by Tarik

The following will tell you whether or not all of the text is selected within a text input in all major browsers. Example: http://www.jsfiddle.net/9Q23E/ Code: function isTextSelected(input) { if (typeof input.selectionStart == “number”) { return input.selectionStart == 0 && input.selectionEnd == input.value.length; } else if (typeof document.selection != “undefined”) { input.focus(); return document.selection.createRange().text == input.value; … Read more

What is EOF in the C programming language?

May 6, 2023 by Tarik

On Linux systems and OS X, the character to input to cause an EOF is Ctrl–D. For Windows, it’s Ctrl–Z. Depending on the operating system, this character will only work if it’s the first character on a line, i.e. the first character after an Enter. Since console input is often line-oriented, the system may also … Read more

cin and getline skipping input [duplicate]

May 6, 2023 by Tarik

If you’re using getline after cin >> something, you need to flush the newline out of the buffer in between. My personal favourite for this if no characters past the newline are needed is cin.sync(). However, it is implementation defined, so it might not work the same way as it does for me. For something … Read more

Get list of all input objects using JavaScript, without accessing a form object

May 5, 2023 by Tarik

(See update at end of answer.) You can get a NodeList of all of the input elements via getElementsByTagName (DOM specification, MDC, MSDN), then simply loop through it: var inputs, index; inputs = document.getElementsByTagName(‘input’); for (index = 0; index < inputs.length; ++index) { // deal with inputs[index] element. } There I’ve used it on the … Read more

How to handle onchange event on input type=file in jQuery?

May 5, 2023 by Tarik

Demo : http://jsfiddle.net/NbGBj/ $(“document”).ready(function(){ $(“#upload”).change(function() { alert(‘changed!’); }); });

Setting maxlength of textbox with JavaScript or jQuery

May 4, 2023 by Tarik

Not sure what you are trying to accomplish on your first few lines but you can try this: $(document).ready(function() { $(“#ms_num”).attr(‘maxlength’,’6′); });

Font-family is not inherited to the form input fields?

May 3, 2023 by Tarik

Yes, you need to place the font in the input tag. input{ padding:5px; font-size:16px; font-family:’Lucida Casual’, ‘Comic Sans MS’; } http://jsfiddle.net/jasongennaro/3fkNJ/1/ You can also use inherit to set the font on form fields. input, textarea, select { font-family:inherit; } http://jsfiddle.net/jasongennaro/3fkNJ/7/ EDIT – explanation added Most browsers render text inside form elements as that of the … Read more

HTML checkbox onclick called in Javascript

May 2, 2023 by Tarik

How about putting the checkbox into the label, making the label automatically “click sensitive” for the check box, and giving the checkbox a onchange event? <label ….. ><input type=”checkbox” onchange=”toggleCheckbox(this)” …..> function toggleCheckbox(element) { element.checked = !element.checked; } This will additionally catch users using a keyboard to toggle the check box, something onclick would not.