Tag Archives: preview

Preview TextBox changes in C#, Part 2

Part 1 of this post explained how the example previews changes made by keyboard events. It then accepts or cancels the changes depending on whether the TextBox control’s new value is a valid integer (or the start of one as … Continue reading

Posted in controls, user interface | Tagged , , , , , , , , , , , , | Leave a comment

Preview TextBox changes in C#

One of the more annoying omissions from the Windows Forms controls is a way to preview changes to a TextBox before they occur. For example, suppose you want the user to enter a floating point value in a TextBox. The … Continue reading

Posted in controls, user interface | Tagged , , , , , , , , , , , , | 2 Comments