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On this page
  • Constructors
  • TreeViewComboBox()
  • Properties
  • ImageIndex
  • ImageKey
  • ImageList
  • Nodes
  • PrefetchItems
  • SelectedIndex
  • SelectedItem
  • Text
  • TreeView
  • TreeViewNodeSorter
  • VirtualScroll
  • Implements

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  1. Wisej.Web
  2. Lists & Grids

TreeViewComboBox

Wisej.Web.TreeViewComboBox

Last updated 4 months ago

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Namespace: Wisej.Web

Assembly: Wisej.Framework (4.0.0.0)

  • Control

    • ListControl

      • ComboBox

        • UserComboBox

          • TreeViewComboBox

The TreeViewComboBox control represents a UserComboBox control with a TreeView as the drop down panel.

public class TreeViewComboBox : UserComboBox
Public Class TreeViewComboBox
    Inherits UserComboBox

Constructors

TreeViewComboBox()

Initializes a new TreeViewComboBox control.

Properties

ImageIndex

Int32: Returns or sets the image-list index value of the default image that is displayed by the tree nodes. (Default: -1)

Throws:

  • ArgumentOutOfRangeException The specified index is less than -1.

String: Returns or sets the key of the default image for each node in the TreeView control when it is in an unselected state. (Default: "")

ImageList: Returns or sets the ImageList that contains the Image objects that are used by the tree nodes. (Default: null)

TreeNodeCollection: Returns the collection of tree nodes that are assigned to the tree view control.

Int32: Returns or sets the number of items to prefetch outside of the visible area when VirtualScroll is set to true. The default is 0 (disabled). (Default: 0)

Int32: Returns or sets the index of the currently selected item.

Throws:

  • ArgumentOutOfRangeException The specified index is less than -1; o the specified index is greater than the number of items in the combo box.

TreeNode: Returns or sets the selected node in the drop down TreeView control.

String: Returns or sets the text associated with this control. (Default: "")

TreeView: Returns the TreeView control associated with this TreeViewComboBox.

IComparer<TreeNode>: Returns or sets the implementation of IComparer to perform a custom sort of the TreeView nodes.

Boolean: Enables or disables virtual scrolling for the TreeView. When virtual scrolling is enabled, only the visible nodes are rendered in the browser allowing the TreeView to host virtually unlimited nodes without any performance loss. (Default: False)

When VirtualScroll is set to true, all the nodes must be of the same height, limiting the more flexible HTML rendering in the nodes available when VirtualScroll is off (default). Setting the property PrefetchItems to a value greater than 0 allows the virtual view to prefetch the specified number of items outside of the visible area to enable smoother scrolling.

Implements

Name
Description

Provides access to the UserData and Tag properties associated to the component implementing this interface.

Bindable components implement this interface.

Controls that support drag & drop operations implement this interface.

Provides access to the validation events and properties property for controls that support validation.

All wisej components implement this interface.

Allows an object to serialize itself.

ImageKey

ImageList

Nodes

PrefetchItems

SelectedIndex

SelectedItem

Text

TreeView

TreeViewNodeSorter

VirtualScroll

Provides access to the associated with the controls that implement this interface.

Provides access to the property for coontrols that support the read-only mode.

Provides access to the property and event for controls that implement this interface.

All wisej controls derived from the class must implement this interface.

IUserData
IBindableComponent
IDropTarget
ILabel
LabelWrapper
IReadOnly
ReadOnly
IModified
Modified
ModifiedChanged
IValidation
IWisejComponent
IWisejControl
Control
IWisejSerializable