VisDropDownBase

Namespace: PPJ.Runtime.Vis

Assembly: PPJ.Web.Vis.50 (5.0.0.0)

Provides a combo-style SAL field with a separate control rendered as its popup.

C#

public class VisDropDownBase : SalComboBox

VB.NET

Public Class VisDropDownBase
    Inherits SalComboBox

Derived classes supply the popup control and its selection behavior.

Example:

var field = new VisListViewDropDown();
            VisDropDownBase popupField = field;
            Wisej.Web.Control popup = popupField.DropDownControl;

Constructors

VisDropDownBase()

Initializes the custom-popup field.

Properties

DropDownControl

Control: Gets or sets the control displayed as the popup.

A newly assigned control receives the current field width and DropDownHeight. Changing the reference requests a browser update.

SelectedIndex

Int32: Provides the base compatibility selection property.

Always returns -1. Assignments are ignored; selection belongs to the custom popup.

Methods

OnAddReferences(items)

Adds the popup control to the browser reference list before inherited references.

Parameter	Type	Description
items	IList	The mutable reference list.

OnCreateControl()

Creates and shows the custom popup after the field is created.

At runtime, detaches the popup from any parent before creating it. Does not perform this setup in design mode.

OnSizeChanged(e)

Raises the inherited event and synchronizes the popup width with this field.

Parameter	Type	Description
e	EventArgs	The size-change event data.

OnWebRender(config)

Configures the custom-popup client class and popup reference.

Parameter	Type	Description
config	Object	The mutable browser configuration.

Removes the inherited mask, prompt, and hidePrompt settings.

Inherited By

Name	Description
VisListViewDropDown	A combo-style field whose popup is a Visual Toolchest list view.
VisOutlineComboBox	A combo-style SAL field with an expandable outline-tree popup.

Implements

Name	Description
ISalControl
ISalEditControl
ISalListControl
ISalWindow