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Masking input to a WPF TextBox February 15, 2007Posted by Karl Hulme in .Net, C#, WPF, XAML. trackbackHow do you go about masking the input to a textbox. Say you wanted to allow numbers but not letters or any punctuation, how would you do it? Well the simplest way is to trap the TextChanged event… private void TextChangedEventHandler(Object sender, EventArgs e) { TextBox textBox = sender as T..

Add a preview text input event. Like so: <TextBox PreviewTextInput="PreviewTextInput" />. Then inside that set the e.Handled if the text isn't allowed. e.Handled = !IsTextAllowed(e.Text); I use a simple regex in IsTextAllowed to see if I should allow what they've typed. In my case I only want to allow numbers, dots and dashes. private static bool IsTextAllowed(string text) { Regex regex =..

SUNDAY, JUNE 8, 2008How to detect NO mouse movementIn some occasions you might want to show or hide stuff in your Silverlight application when the visitor stopped moving his/her mouse. For instance, most media players use this method to hide the play/pause/forward/mute controlbar. You can achieve this by doing following this: 1. Create a DispatcherTimer view plaincopy to clipboardprint?private ..

Linq to SQL Database Connection String Issue By budigelli on Jun 19, 2008 in .NET, LINQ As i am moving in to hosting my application on an external server, i am finding some interesting and annoying (time consuming for research) things. i will try to address them as they come along… One of the main thing was the way i handle my Data Layer. My Data Layer is a class library project and I have se..