Watermark / hint / placeholder text in TextBox?
Watermark / hint / placeholder text in TextBox?
textbox
Set keyboard caret position in html textbox
Excerpted from Josh Stodola’s Setting keyboard caret Position in a Textbox or TextArea with Javascript A generic function that will allow you to insert the caret at any position of a textbox or textarea that you wish: function setCaretPosition(elemId, caretPos) { var elem = document.getElementById(elemId); if(elem != null) { if(elem.createTextRange) { var range = elem.createTextRange(); … Read more
Watermark TextBox in WinForms
.NET 5.0+, .NET Core 3.0+ You can use PlaceholderText property. It supports both multi-line and single-line text-box. textBox1.PlaceholderText = “Something”; If you look into the .NET CORE implementation of TextBox you see it’s been implemented by handling paint message. .NET Framework Here is an implementation of a TextBox which supports showing hint (or watermark or … Read more
How do I make a textbox that only accepts numbers?
How do I make a textbox that only accepts numbers?
Interactively validating Entry widget content in tkinter
The correct answer is, use the validatecommand attribute of the widget. Unfortunately this feature is severely under-documented in the Tkinter world, though it is quite sufficiently documented in the Tk world. Even though it’s not documented well, it has everything you need to do validation without resorting to bindings or tracing variables, or modifying the … Read more
Calculate text width with JavaScript
In HTML 5, you can just use the Canvas.measureText method (further explanation here). Try this fiddle: /** * Uses canvas.measureText to compute and return the width of the given text of given font in pixels. * * @param {String} text The text to be rendered. * @param {String} font The css font descriptor that text … Read more
Generate random alphanumeric string into password field
If you want to add text to password mode textfield then you need to write. txtPassword.Attributes.Add(“value”, finalString.ToString());