Class

BaseComboBoxElement

Initializes a new instance of the RadComboBoxElement class.

Declaration

public BaseComboBoxElement()

Declaration

public static RadProperty IsDropDownShownProperty

Field Value

Declaration

protected string LastTypedText

Field Value

Declaration

protected char lastPressedChar

Field Value

Declaration

protected ComboBoxEditorLayoutPanel layoutPanel

Field Value

Declaration

protected RadTextBoxItem textBox

Field Value

Gets the arrow button element.

Declaration

public RadArrowButtonElement ArrowButton { get; }

Property Value

Declaration

public int ArrowButtonMinWidth { get; set; }

Property Value

Specifies the mode for the automatic completion feature used in the ComboBox and the TextBox controls.

Declaration

[Browsable(true)]
public virtual AutoCompleteMode AutoCompleteMode { get; set; }

Property Value

Gets or set the value in Milliseconds indicating delay between last key press and filtering operation

Declaration

public int AutoFilterDelay { get; set; }

Property Value

Gets or sets a value indicating whether string comparisons are case-sensitive.

Declaration

[Browsable(true)]
public bool CaseSensitive { get; set; }

Property Value

Gets the border element.

Declaration

public BorderPrimitive ComboBoxBorder { get; }

Property Value

Gets the fill element.

Declaration

public FillPrimitive ComboBoxFill { get; }

Property Value

Gets or sets the data source.

Declaration

public abstract object DataSource { get; set; }

Property Value

Rotate items on double click in the edit box part

Declaration

[Browsable(true)]
public bool DblClickRotate { get; set; }

Property Value

Gets or sets the property to display.

Declaration

[TypeConverter("System.Windows.Forms.Design.DataMemberFieldConverter, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
public abstract string DisplayMember { get; set; }

Property Value

Gets or sets the type of the DropDown animation.

Declaration

[Browsable(true)]
public RadEasingType DropDownAnimationEasing { get; set; }

Property Value

Gets or sets a value indicating whether the ComboBox DropDown will be enabled when it shows.

Declaration

[Browsable(true)]
public bool DropDownAnimationEnabled { get; set; }

Property Value

Gets or sets the number of frames that will be used when the DropDown is being animated.

Declaration

[Browsable(true)]
public int DropDownAnimationFrames { get; set; }

Property Value

Gets or sets the height in pixels of the drop-down portion of the ComboBox.

Declaration

[Browsable(true)]
public int DropDownHeight { get; set; }

Property Value

Declaration

[Browsable(true)]
public Size DropDownMaxSize { get; set; }

Property Value

Declaration

[Browsable(true)]
public Size DropDownMinSize { get; set; }

Property Value

Declaration

[Browsable(true)]
public abstract SizingMode DropDownSizingMode { get; set; }

Property Value

Gets or sets a value specifying the style of the combo box.

Declaration

[Browsable(true)]
public RadDropDownStyle DropDownStyle { get; set; }

Property Value

Gets or sets the width of the of the drop-down portion of a combo box.

Declaration

[Browsable(true)]
public int DropDownWidth { get; set; }

Property Value

Gets or sets the IFormatProvider that provides custom formatting behavior.

Declaration

[Browsable(false)]
public abstract IFormatProvider FormatInfo { get; set; }

Property Value

Gets or sets the format-specifier characters that indicate how a value is to be displayed.

Declaration

public abstract string FormatString { get; set; }

Property Value

Gets or sets a value indicating whether formatting is applied to the DisplayMember property.

Declaration

public abstract bool FormattingEnabled { get; set; }

Property Value

Declaration

protected abstract bool IndexChanging { get; set; }

Property Value

Gets or sets a value indicating whether the control should show or not partial items.

Declaration

public abstract bool IntegralHeight { get; set; }

Property Value

Gets a value indicating whether the drop down is shown.

Declaration

public bool IsDropDownShown { get; }

Property Value

Gets a value indicating whether the combo box is displaying its drop-down portion.

Declaration

[Browsable(false)]
public bool IsDroppedDown { get; }

Property Value

Gets whether the text input control of the combo box is in editable mode.

Declaration

public bool IsWritable { get; }

Property Value

Gets a collection representing the items contained in this ComboBox.

Declaration

public abstract RadItemCollection Items { get; }

Property Value

LimitToList Property

Declaration

public bool LimitToList { get; set; }

Property Value

Gets or sets the maximum number of items to be shown in the drop-down portion of the ComboBox.

Declaration

public int MaxDropDownItems { get; set; }

Property Value

Gets or sets the maximum number of characters the user can type or paste into the text box control.

Declaration

public int MaxLength { get; set; }

Property Value

Gets or sets the text that is displayed when the ComboBox contains a null reference.

Declaration

public string NullText { get; set; }

Property Value

Gets or sets a boolean value determining whether the user can scroll through the items when the popup is closed by using the mouse wheel.

Declaration

public bool ScrollOnMouseWheel { get; set; }

Property Value

Gets or sets the index specifying the currently selected item.

Declaration

[Browsable(true)]
public abstract int SelectedIndex { get; set; }

Property Value

Gets or sets the currently selected item.

Declaration

[Browsable(false)]
[Bindable(true)]
public abstract object SelectedItem { get; set; }

Property Value

Gets or sets the text that is selected in the editable portion of the ComboBox.

Declaration

[Browsable(false)]
public string SelectedText { get; set; }

Property Value

Gets or sets value specifying the currently selected item.

Declaration

[Browsable(false)]
[Bindable(true)]
public abstract object SelectedValue { get; set; }

Property Value

Gets or sets the number of characters selected in the editable portion of the combo box.

Declaration

[Browsable(false)]
public int SelectionLength { get; set; }

Property Value

Gets or sets the starting index of text selected in the combo box.

Declaration

[Browsable(false)]
public int SelectionStart { get; set; }

Property Value

Gets or sets a value indicating the sort style the of items in the combo box.

Declaration

public SortStyle Sorted { get; set; }

Property Value

Gets or sets the displayed text.

Declaration

public override string Text { get; set; }

Property Value

Overrides RadItem.Text

Gets the TextBoxElement which is used in the ComboBox.

Declaration

[Browsable(false)]
public RadTextBoxElement TextBoxElement { get; }

Property Value

Declaration

public LightVisualElement TextboxContentElement { get; set; }

Property Value

Declaration

public override object Value { get; set; }

Property Value

Overrides EditorBaseElement.Value

Gets or sets t he property to use as the actual value for the items.

Declaration

public abstract string ValueMember { get; set; }

Property Value

Gets or sets a value indicating whether RadScrollViewer uses UI virtualization.

Declaration

[Browsable(true)]
public abstract bool Virtualized { get; set; }

Property Value

Declaration

public override EditorVisualMode VisualMode { get; }

Property Value

Overrides EditorBaseElement.VisualMode

Declaration

protected virtual void ApplyThemeToPopupForm()

Declaration

public override void BeginEdit()

Overrides EditorBaseElement.BeginEdit()

Call BeginUpdate at the begining of a block that makes many modifications in the GUI EndUpdate()

Declaration

public abstract void BeginUpdate()

Called by the element when constructed. Allows inheritors to build the element tree.

Declaration

protected override void CreateChildElements()

Overrides RadElement.CreateChildElements()

Releases managed resources used by this element.

Declaration

protected override void DisposeManagedResources()

Overrides PopupEditorBaseElement.DisposeManagedResources()

Declaration

protected abstract void DoScrollLineDown()

Declaration

protected abstract void DoScrollLineUp()

Call BeginUpdate at the end of a block that makes many modifications in the GUI BeginUpdate()

Declaration

public abstract void EndUpdate()

Declaration

public abstract ArrayList FindAllItems(string startsWith)

Parameters

Returns

Finds the first item in the combo box that starts with the specified string.

Declaration

protected abstract object FindItem(string startsWith)

Parameters

Returns

Finds the first item in the combo box that matches the specified string.

Declaration

protected abstract object FindItemExact(string text)

Parameters

Returns

Finds the index of the item with the specified text. The passed argument is compared with the DisplayMember value for each item in the items collection.

Declaration

protected abstract int FindItemIndexExact(string text)

Parameters

Returns

Declaration

protected virtual object GetActiveItem()

Returns

Call the GetItemHeight member function to retrieve the height of list items in a combo box.

Declaration

public abstract int GetItemHeight(int index)

Parameters

Returns

Gets the text of the specified item.

Declaration

public abstract string GetItemText(object item)

Parameters

Returns

Declaration

protected virtual string GetText(object item)

Parameters

Returns

Called when the bubble phase of a routed event occurs.

Declaration

protected override void OnBubbleEvent(RadElement sender, RoutedEventArgs args)

Parameters

Overrides RadElement.OnBubbleEvent(RadElement, RoutedEventArgs)

Raises the CaseSensitiveChanged event.

Declaration

protected virtual void OnCaseSensitiveChanged(EventArgs e)

Parameters

Raises the DoubleClick event.

Declaration

protected override void OnDoubleClick(EventArgs e)

Parameters

Overrides RadElement.OnDoubleClick(EventArgs)

Raises the DropDownStyleChanged event.

Declaration

protected virtual void OnDropDownStyleChanged(EventArgs e)

Parameters

Raises the MouseWheel event.

Declaration

protected override void OnMouseWheel(MouseEventArgs e)

Parameters

Overrides RadElement.OnMouseWheel(MouseEventArgs)

Raises the standard .NET PropertyChanged event with the specified property name to notify subscribers of property value changes.

Declaration

protected override void OnNotifyPropertyChanged(string propertyName)

Parameters

Overrides RadObject.OnNotifyPropertyChanged(string)

Declaration

protected override void OnPopupClosed(RadPopupClosedEventArgs e)

Parameters

Overrides PopupEditorBaseElement.OnPopupClosed(RadPopupClosedEventArgs)

Declaration

protected override void OnPopupOpened(EventArgs args)

Parameters

Overrides PopupEditorBaseElement.OnPopupOpened(EventArgs)

Called when a property value has changed, handling item-specific property change logic including text, visual state, and animation properties.

Declaration

protected override void OnPropertyChanged(RadPropertyChangedEventArgs e)

Parameters

Overrides PopupEditorBaseElement.OnPropertyChanged(RadPropertyChangedEventArgs)

Called before a property value is changed, allowing for validation or cancellation of text changes.

Declaration

protected override void OnPropertyChanging(RadPropertyChangingEventArgs args)

Parameters

Overrides RadItem.OnPropertyChanging(RadPropertyChangingEventArgs)

Raises the SelectedIndexChanged event.

Declaration

protected virtual void OnSelectedIndexChanged(EventArgs e)

Parameters

Raises the SelectedValueChanged event.

Declaration

protected virtual void OnSelectedValueChanged(EventArgs e)

Parameters

Raises the SortedChanged event.

Declaration

protected virtual void OnSortedChanged(EventArgs e)

Parameters

Called when the tunnel phase of a routed event occurs.

Declaration

protected override void OnTunnelEvent(RadElement sender, RoutedEventArgs args)

Parameters

Overrides RadElement.OnTunnelEvent(RadElement, RoutedEventArgs)

Declaration

protected virtual void ProcessDeleteKey(KeyEventArgs e)

Parameters

Processes the Escape key

Declaration

public virtual bool ProcessEscKey(KeyEventArgs e)

Parameters

Returns

Declaration

protected virtual void ProcessKeyDown(object sender, KeyEventArgs e)

Parameters

Declaration

protected virtual void ProcessPageUpDownKeys(KeyEventArgs e)

Parameters

Processes the Enter key

Declaration

public virtual void ProcessReturnKey(KeyEventArgs e)

Parameters

Declaration

protected virtual void ProcessTextChanged(object sender, EventArgs e)

Parameters

Declaration

protected virtual void ProcessTextKeyUp(object sender, KeyEventArgs e)

Parameters

Declaration

protected abstract void ScrollItemIntoView(object item)

Parameters

Declaration

protected abstract void ScrollToHome()

Selects a range of text in the editable portion of the combo box

Declaration

public void Select(int start, int length)

Parameters

Selects all the text in the editable portion of the combo box.

Declaration

public void SelectAll()

Declaration

public bool SelectAllText(string text)

Parameters

Returns

Declaration

protected virtual void SelectNextItem()

Declaration

protected virtual void SelectPreviousItem()

Declaration

protected abstract void SetActiveItem(object item)

Parameters

Declaration

protected abstract void SetActiveItem(string text)

Parameters

Declaration

protected abstract void SetAppendAutoComplete(KeyPressEventArgs e)

Parameters

Declaration

protected virtual void SetSuggestAutoComplete()

Displays the popup on the screen.

Declaration

public override void ShowPopup()

Overrides PopupEditorBaseElement.ShowPopup()

Declaration

protected virtual void TextBoxPanel_Pasted(object sender, EventArgs e)

Parameters

Declaration

protected virtual void TextBox_TextChanging(object sender, TextChangingEventArgs e)

Parameters

Declaration

protected virtual void UnwireEvents()

Declaration

protected virtual void WireEvents()

Occurs when the CaseSensitive property has changed.

Declaration

[Browsable(true)]
public event EventHandler CaseSensitiveChanged

Event Value

Declaration