Category Archives: controls

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

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Use Windows Forms controls to make multiple stacked expanders in C#

The example Use Windows Forms controls to make an expander in C# shows how to make simple expanders. By collapsing a Panel, the program allows the user to hide unwanted information. That frees up space on the form that the … Continue reading

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Use Windows Forms controls to make an expander in C#

WPF, Silverlight, Metro, or whatever Microsoft is calling this stuff now days has some useful controls in the System.Windows.Controls namespace including Expander. An Expander displays a small arrow button and a panel where you can place other controls. When the … Continue reading

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Make transparent button images in C#

It seems like I keep writing this program because I need to make button images fairly often. I wanted to use a simple image with a transparent background for a button image. Unfortunately MSPaint doesn’t know how to save images … Continue reading

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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

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Print a ListView control’s contents on multiple pages in C#

This example continues the following two examples: Print a ListView with large contents in C# Print the contents of a ListView control in C# Read those examples for an overview of the basic procedure. This example prints the contents of … Continue reading

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Update a DataTable that is bound to a DataGridView in C#

The example Build a DataTable and bind it to a DataGridView in C# shows how you can bind a DataTable to a DataGridView to display data. This example shows how you can add new data to the display. When the … Continue reading

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Print a ListView with large contents in C#

The example Print the contents of a ListView control in C# explains how to print the data in a ListView control when its View property is set to Details. One difficulty when printing this kind of data is that a … Continue reading

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Print the contents of a ListView control in C#

The ListView control, like most controls, includes no support for printing. If you want to display a ListView control’s contents on a print out, you need to do all of the printing yourself. Unfortunately printing in C# is extremely flexible … Continue reading

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Use a ProgressBar in C#

This example shows how to use a ProgressBar to show the progress of a long task. This is a very simple example that performs a synchronous task. I created the ProgressBar at design time. I left its Minimum property set … Continue reading

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