Create windows control library vb net

The Value , Message , and ShowReset properties will be displayed in the Properties window, together with the properties that are inherited from UserControl. Drag a Button control to the form, and then set the name and text properties of the button to Test. Highlight the Throw statement in the event handler, type mbox , and then press Tab twice to generate a message box from the mbox code snippet. Select Test until the counter reaches 5 closing the message boxes each time.

You can deploy the control by uploading the. When a user opens the. Alternatively, you can upload the. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode.

Is this page helpful? Please rate your experience Yes No. Any additional feedback? It has more properties and the animation in the OnPaint method is more involved. In principle, it is quite similar to the MarqueeText control.

Because the MarqueeBorder control can have child controls, it needs to be aware of Layout events. Give the new source file a base name of "MarqueeBorder. This component will allow the MarqueeBorder control to update itself asynchronously.

In the Properties window, select the Events button. Attach handlers for the DoWork and ProgressChanged events. Open the MarqueeBorder source file in the Code Editor. Declare two enumerations for managing the MarqueeBorder control's state: MarqueeSpinDirection , which determines the direction in which the lights "spin" around the border, and MarqueeLightShape , which determines the shape of the lights square or circular.

Place these declarations before the MarqueeBorder class declaration. Because the MarqueeBorder control can contain child controls, the StartMarquee method enumerates all child controls and calls StartMarquee on those that implement IMarqueeWidget. The StopMarquee method has a similar implementation.

The MarqueeBorder control has several properties for controlling its appearance. The IsLit method determines the color of a light at a given position. Lights that are "lit" are drawn in the color given by the LightColor property, and those that are "dark" are drawn in the color given by the DarkColor property.

The DrawLight method draws a light using the appropriate color, shape, and position. Override the OnLayout and OnPaint methods. The OnPaint method draws the lights along the edges of the MarqueeBorder control. Because the OnPaint method depends on the dimensions of the MarqueeBorder control, you need to call it whenever the layout changes. To achieve this, override OnLayout and call Refresh. The MarqueeControlRootDesigner class provides the implementation for the root designer.

In addition to this designer, which operates on the MarqueeControl , you'll need a custom designer that is specifically associated with the MarqueeBorder control. This designer provides custom behavior that is appropriate in the context of the custom root designer. Specifically, the MarqueeBorderDesigner will "shadow" and filter certain properties on the MarqueeBorder control, changing their interaction with the design environment.

Intercepting calls to a component's property accessor is known as "shadowing. For this example, the Visible and Enabled properties will be shadowed by the MarqueeBorderDesigner , which prevents the user from making the MarqueeBorder control invisible or disabled during design time.

Designers can also add and remove properties. For this example, the Padding property will be removed at design time, because the MarqueeBorder control programmatically sets the padding based on the size of the lights specified by the LightSize property. The base class for MarqueeBorderDesigner is ComponentDesigner , which has methods that can change the attributes, properties, and events exposed by a control at design time:. Adhering to these rules ensures that all designers in the design-time environment have a consistent view of all components being designed.

The ComponentDesigner class provides a dictionary for managing the values of shadowed properties, which relieves you of the need to create specific instance variables. Give the source file a base name of MarqueeBorderDesigner. Because the MarqueeBorder control can contain child controls, MarqueeBorderDesigner inherits from ParentControlDesigner , which handles the parent-child interaction. Override the base implementation of PreFilterProperties.

Implement the Enabled and Visible properties. These implementations shadow the control's properties. Most of the design-time functionality is inherited from the DocumentDesigner class. Your code will implement two specific customizations: handling component changes, and adding designer verbs. As users design their MarqueeControl instances, your root designer will track changes to the MarqueeControl and its child controls.

The design-time environment offers a convenient service, IComponentChangeService , for tracking changes to component state. You acquire a reference to this service by querying the environment with the GetService method. If the query is successful, your designer can attach a handler for the ComponentChanged event and perform whatever tasks are required to maintain a consistent state at design time. This will cause the IMarqueeWidget object to repaint itself appropriately when properties like its parent's Size are changed.

Implement the OnComponentChanged event handler. Test the sending component's type, and if it is an IMarqueeWidget , call its Refresh method. A designer verb is a menu command linked to an event handler. Designer verbs are added to a component's shortcut menu at design time. For more information, see DesignerVerb. You will add two designer verbs to your designers: Run Test and Stop Test. These verbs will allow you to view the run-time behavior of the MarqueeControl at design time.

These verbs will be added to MarqueeControlRootDesigner. The implementation of the StartMarquee and StopMarquee methods call these methods on contained controls that implement IMarqueeWidget , so any contained IMarqueeWidget controls will also participate in the test.

Connect these event handlers to their corresponding designer verbs. You will create two new DesignerVerb objects and add them to this collection in the Initialize method.

When you create a custom design-time experience for users, it is often desirable to create a custom interaction with the Properties window. You can accomplish this by creating a UITypeEditor. The MarqueeBorder control exposes several properties in the Properties window.

Override the GetEditStyle method. This implementation returns DropDown , which tells the design environment how to display the LightShapeEditor.

Override the EditValue method. If successful, it creates a LightShapeSelectionControl. The return value from this invocation is returned to the design environment. You will create a custom control used solely for the purpose of graphically displaying these values in the Properties window. Give the new source file a base name of LightShapeSelectionControl. Name them squarePanel and circlePanel. Arrange them side by side. Set the Size property of both Panel controls to 60, Set the Location property of the squarePanel control to 8, Find centralized, trusted content and collaborate around the technologies you use most.

Connect and share knowledge within a single location that is structured and easy to search. I don't have that template as an option! I am using VS professional. Any ideas? The "Windows Control Library" project template is used to quickly get started creating custom controls for use in Windows Forms WinForms applications.

It creates a project that is automatically populated with the necessary references and files. To create a new project of this type, you first have to pick one of the.

Then, select the "Windows" category to narrow down the scope of the project types that are listed. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more.