textbox – Page 12 – Tarik Billa

How can I add a hint text to WPF textbox?

December 15, 2022 by Tarik

You can accomplish this much more easily with a VisualBrush and some triggers in a Style: <TextBox> <TextBox.Style> <Style TargetType=”TextBox” xmlns:sys=”clr-namespace:System;assembly=mscorlib”> <Style.Resources> <VisualBrush x:Key=”CueBannerBrush” AlignmentX=”Left” AlignmentY=”Center” Stretch=”None”> <VisualBrush.Visual> <Label Content=”Search” Foreground=”LightGray” /> </VisualBrush.Visual> </VisualBrush> </Style.Resources> <Style.Triggers> <Trigger Property=”Text” Value=”{x:Static sys:String.Empty}”> <Setter Property=”Background” Value=”{StaticResource CueBannerBrush}” /> </Trigger> <Trigger Property=”Text” Value=”{x:Null}”> <Setter Property=”Background” Value=”{StaticResource CueBannerBrush}” /> </Trigger> … Read more

Set focus on textbox in WPF

December 15, 2022 by Tarik

In XAML: <StackPanel FocusManager.FocusedElement=”{Binding ElementName=Box}”> <TextBox Name=”Box” /> </StackPanel>

Limit number of characters allowed in form input text field

December 12, 2022 by Tarik

maxlength: The maximum number of characters that will be accepted as input. This can be greater that specified by SIZE , in which case the field will scroll appropriately. The default is unlimited. <input type=”text” maxlength=”2″ id=”sessionNo” name=”sessionNum” onkeypress=”return isNumberKey(event)” /> However, this may or may not be affected by your handler. You may need … Read more

jQuery textbox change event doesn’t fire until textbox loses focus?

December 1, 2022 by Tarik

Binding to both events is the typical way to do it. You can also bind to the paste event. You can bind to multiple events like this: $(“#textbox”).on(‘change keyup paste’, function() { console.log(‘I am pretty sure the text box changed’); }); If you wanted to be pedantic about it, you should also bind to mouseup … Read more

Set focus on TextBox in WPF from view model

November 29, 2022 by Tarik

Let me answer to your question in three parts. I’m wondering what is “cs.txtCompanyID” in your example? Is it a TextBox control? If yes, then you are on a wrong way. Generally speaking it’s not a good idea to have any reference to UI in your ViewModel. You can ask “Why?” but this is another … Read more

What is a reasonable length limit on person “Name” fields?

November 15, 2022 by Tarik

UK Government Data Standards Catalogue suggests 35 characters for each of Given Name and Family Name, or 70 characters for a single field to hold the Full Name.

Making a WinForms TextBox behave like your browser’s address bar

November 14, 2022 by Tarik

First of all, thanks for answers! 9 total answers. Thank you. Bad news: all of the answers had some quirks or didn’t work quite right (or at all). I’ve added a comment to each of your posts. Good news: I’ve found a way to make it work. This solution is pretty straightforward and seems to … Read more

What is the correct value for the disabled attribute?

October 24, 2022 by Tarik

For XHTML, <input type=”text” disabled=”disabled” /> is the valid markup. For HTML5, <input type=”text” disabled /> is valid and used by W3C on their samples. In fact, both ways works on all major browsers.

Open file dialog and select a file using WPF controls and C#

October 18, 2022 by Tarik

Something like that should be what you need private void button1_Click(object sender, RoutedEventArgs e) { // Create OpenFileDialog Microsoft.Win32.OpenFileDialog dlg = new Microsoft.Win32.OpenFileDialog(); // Set filter for file extension and default file extension dlg.DefaultExt = “.png”; dlg.Filter = “JPEG Files (*.jpeg)|*.jpeg|PNG Files (*.png)|*.png|JPG Files (*.jpg)|*.jpg|GIF Files (*.gif)|*.gif”; // Display OpenFileDialog by calling ShowDialog method Nullable<bool> … Read more

Set keyboard caret position in html textbox

October 12, 2022 by Tarik

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