VB.Net - ColorDialog Control
The ColorDialog control class represents a common dialog box that displays available colors along with controls that enable the user to define custom colors. It lets the user select a color.
The main property of the ColorDialog control is Color, which returns a Color object.
Following is the Color dialog box:
Properties of the ColorDialog Control
The following are some of the commonly used properties of the ColorDialog control:
|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.|
Methods of the ColorDialog Control
The following are some of the commonly used methods of the ColorDialog control:
|S.N||Method Name & Description|
Resets all options to their default values, the last selected color to black, and the custom colors to their default values.
When overridden in a derived class, specifies a common dialog box.
Runs a common dialog box with a default owner.
Events of the ColorDialog Control
The following are some of the commonly used events of the ColorDialog control:
|1||HelpRequest||Occurs when the user clicks the Help button on a common dialog box.|
In this example, let's change the forecolor of a label control using the color dialog box. Take the following steps:
Drag and drop a label control, a button control and a ColorDialog control on the form.
Set the Text property of the label and the button control to 'Give me a new Color' and 'Change Color', respectively.
Change the font of the label as per your likings.
Double-click the Change Color button and modify the code of the Click event.
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click If ColorDialog1.ShowDialog <> Windows.Forms.DialogResult.Cancel Then Label1.ForeColor = ColorDialog1.Color End If End Sub
When the application is compiled and run using Start button available at the Microsoft Visual Studio tool bar, it will show the following window:
Clicking on the Change Color button, the color dialog appears, select a color and click the OK button. The selected color will be applied as the forecolor of the text of the label.