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Tag Archives: TextBox
Resize a TextBox to fit its text in C#
This example shows how you can resize a TextBox to fit its contents as the user types. The key is the following AutoSizeTextBox method. // Make the TextBox fit its contents. private void AutoSizeTextBox(TextBox txt) { const int x_margin = … Continue reading
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
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
Make Ctrl+A select all of the text in a TextBox in C#
Often it’s convenient for the user to be able to press Ctrl+A to select all of the text in the TextBox that has the focus. Strangely that’s not the default behavior for the TextBox. Perhaps the TextBox doesn’t handle Ctrl+A … Continue reading
Posted in controls, user interface
Tagged C#, C# programming, controls, Ctrl+A, example, example program, select all text, SelectAll, TextBox, user interface, Windows Forms programming
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Make a TextBox with auto-complete in C#
It’s not too hard to make a TextBox provide an auto-complete feature. In fact, the TextBox control offers three auto-complete styles. This example demonstrates those styles. To provide auto-complete, you need to set the following three TextBox properties. AutoCompleteMode – … Continue reading
Posted in controls, user interface
Tagged auto-complete, AutoComplete, C#, C# programming, controls, example, example program, TextBox, user interface, Windows Forms programming
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Make a TextBox convert text into proper case in C#
The example Convert a string to proper case (title case) in C# uses a CultureInfo object’s TextInfo property to convert text into proper case (or title case). There are a couple of tricks and potential problems that you need to … Continue reading
Posted in controls, strings
Tagged C#, C# programming, capitalization, controls, example, example program, lower case, proper case, string format, strings, TextBox, title case, upper case, Windows Forms programming
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