Tag Archives: user interface

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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Make pop buttons in C#

This example produces an interesting visual effect that I call “pop buttons.” The buttons grow and shrink when the mouse moves over them. The technique is remarkably simple and adds some extra interactivity to an otherwise ordinary program. The program’s … Continue reading

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Display reusable dialog forms in C#

The example Make a dialog with standard dialog features in C# shows the most common approach to making dialogs. Whenever it needs to display the dialog, the main program initializes a new instance of it and displays it. If the … Continue reading

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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

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Use filenames stored in a database to display images in C#

The reason so many people ask how to store and retrieve images in a database is that it’s hard. You need to use a special data type such as the BLOB (Binary Large Object) or MEMO data type depending on … Continue reading

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Display database records without data binding in C#

Many programs use data binding to display database records. That method is easy (at least as far as the code you write is concerned), but it’s not very flexible. This example shows how you can display database records without data … Continue reading

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Initialize lists from databases without binding in C#

Note that this is a very manual way to initialize lists. Often you can display data more easily by using data binding. In this example, I added the Access database file Books.mdb to the project and set its “Copy to … Continue reading

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Check a TreeView subtree in C#

Sometimes it’s useful to let the user select a TreeView subtree by clicking on a higher-level node. Then the user can deselect individual nodes within the subtree if desired. For example, in the picture shown here I checked the Dinner … Continue reading

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Display context menus for TreeView items in C#

This example displays different context menus when you right-click on different kinds of nodes in a TreeView control. In this example, different nodes represent factories, groups, or individuals. Different node types display different context menus. When it starts, the program … Continue reading

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Enumerate TreeView nodes in C#

The previous two posts show two ways you can enumerate TreeView nodes that are checked. The idea is to recursively crawl over the tree’s nodes and pick out the checked ones. Unfortunately that method isn’t easily extendable. For example, if … Continue reading

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