What is Color Dialog Box in VB.net?
The Color Dialog Box in VB.net is used to show the Color Dialog Box and let the Microsoft Windows Application user choose colors.
It lets users change or set the color of an object, like the color of a control’s background or the color used to paint an object.
Also, the control dialog box gives the user the option to mix all of the other colors in the Color Dialog Box to make a new color.
We have learned how to use the Dialog Boxes in VB.net in the previous lesson.
In this lesson, we shall learn How To Write a Program for a Color Dialog Box in VB.net.
ColorDialog Box in VB.net Properties
In VB.net, the Color Dialog Box in the Windows Form has the following Properties.
| # | ColorDialog Box in VB.net Properties | Description |
|---|---|---|
| 1. | AllowFullOpen | Gets or sets a value indicating whether the user can use the dialog box to define custom colors. |
| 2. | AnyColor | Gets or sets a value indicating whether the dialog box displays all available colors in the set of basic colors. |
| 3. | CanRaiseEvents | Gets a value indicating whether the component can raise an event. |
| 4. | Color | Gets or sets the color selected by the user. |
| 5. | CustomColors | Gets or sets the set of custom colors shown in the dialog box. |
| 6. | FullOpen | Gets or sets a value indicating whether the controls used to create custom colors are visible when the dialog box is opened. |
| 7. | ShowHelp | Gets or sets a value indicating whether a Help button appears in the color dialog box. |
| 8. | SolidColorOnly | Gets or sets a value indicating whether the dialog box will restrict users to selecting solid colors only. |
ColorDialog Box in VB.net Methods
Here are some of the most common ways that the ColorDialog Box in VB.net Methods is used.
| # | ColorDialog Box in VB.net Methods | Description |
|---|---|---|
| 1. | ShowDialog() | The ShowDialog () method is used to run a common dialog box with the default setting. |
| 2. | Dispose() | The Dispose() method is used to free all resources used by the Control or component in the Color Dialog Box. |
| 3. | Equals() | The Equals() method is used to check whether the current or defined object is the same. |
| 4. | OnHelpRequest() | It is used to call the HelpRequest event in the dialog box. |
| 5. | Reset() | The Reset() method is used to reset all changes to their default values. For example, the last selected color to be black, and the custom color to be their default values. |
| 6. | RunDialog() | It is used to override a derived class to create a common dialog box. |
ColorDialog Box in VB.net Events
Here are some of the most common ways that the ColorDialog Box in VB.net Events is used.
| # | ColorDialog Box in VB.net Events | Description |
|---|---|---|
| 1. | Disposed | When control or component is terminated by calling the Dispose method, a Dispose event occurs. |
| 2. | HelpRequest | When a user clicks the help button of the Color dialog box, the HelpRequest event is called. |
Let’s make a simple program that uses VB.NET Windows Forms to show the Color Dialog Box.
When we click on any of the two buttons, the Color popup window appears, as shown in the image below.
If you click the OK button, the colored Windows Form will appear, as shown below.
Summary
A ColorDialog Control in VB.net lets users open the Windows Color Dialog and choose a solid color or make their own color from the colors that are available.
In this article, we talked about how to use a Windows Color Dialog in a Windows Forms application using Microsoft Visual Studio and how to set its properties.
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