Class DropDownListBase

Represent a base class which is used to create a list control like SfComboBox or SfAutocomplete. These controls are used to selected item(s) from the suggestions displayed in drop down.

Inheritance
System.Object
SfView
SfDropdownEntry
DropDownListBase
SfAutocomplete
SfComboBox
Implements
Microsoft.Maui.Graphics.IDrawable
Microsoft.Maui.IAbsoluteLayout
Microsoft.Maui.ILayout
Microsoft.Maui.IView
Microsoft.Maui.IElement
Microsoft.Maui.ITransform
Microsoft.Maui.IContainer
System.Collections.Generic.IList<Microsoft.Maui.IView>
System.Collections.Generic.ICollection<Microsoft.Maui.IView>
System.Collections.Generic.IEnumerable<Microsoft.Maui.IView>
System.Collections.IEnumerable
Microsoft.Maui.ISafeAreaView
Microsoft.Maui.IPadding
Microsoft.Maui.ICrossPlatformLayout
Microsoft.Maui.IVisualTreeElement
Inherited Members
Namespace: Syncfusion.Maui.Inputs.DropDownControls
Assembly: Syncfusion.Maui.Inputs.dll
Syntax
public abstract class DropDownListBase : SfDropdownEntry, IDrawableLayout, IDrawable, IAbsoluteLayout, ILayout, IView, IElement, ITransform, IContainer, IList<IView>, ICollection<IView>, IEnumerable<IView>, IEnumerable, ISafeAreaView, IPadding, ICrossPlatformLayout, IVisualTreeElement, ISemanticsProvider, ITouchListener, ITextElement, IKeyboardListener

Constructors

DropDownListBase()

Initializes a new instance of the DropDownListBase class.

Declaration
public DropDownListBase()

Fields

DelimiterTextProperty

Identifies DelimiterText bindable property.

Declaration
public static readonly BindableProperty DelimiterTextProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DelimiterText bindable property.

DisplayMemberPathProperty

Identifies DisplayMemberPath bindable property.

Declaration
public static readonly BindableProperty DisplayMemberPathProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DisplayMemberPath bindable property.

DropDownBackgroundProperty

Identifies DropDownBackground bindable property.

Declaration
public static readonly BindableProperty DropDownBackgroundProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownBackground bindable property.

DropdownFooterViewHeightProperty

Identifies DropdownFooterViewHeight bindable property.

Declaration
public static readonly BindableProperty DropdownFooterViewHeightProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

DropdownFooterViewProperty

Identifies DropdownFooterView bindable property.

Declaration
public static readonly BindableProperty DropdownFooterViewProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

DropdownHeaderViewHeightProperty

Identifies DropdownHeaderViewHeight bindable property.

Declaration
public static readonly BindableProperty DropdownHeaderViewHeightProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

DropdownHeaderViewProperty

Identifies DropdownHeaderView bindable property.

Declaration
public static readonly BindableProperty DropdownHeaderViewProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

DropDownItemFontAttributesProperty

Identifies DropDownItemFontAttributes bindable property.

Declaration
public static readonly BindableProperty DropDownItemFontAttributesProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownItemFontAttributes bindable property.

DropDownItemFontFamilyProperty

Identifies DropDownItemFontFamily bindable property.

Declaration
public static readonly BindableProperty DropDownItemFontFamilyProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownItemFontFamily bindable property.

DropDownItemFontSizeProperty

Identifies DropDownItemFontSize bindable property.

Declaration
public static readonly BindableProperty DropDownItemFontSizeProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownItemFontSize bindable property.

DropDownItemHeightProperty

Identifies DropDownItemHeight bindable property.

Declaration
public static readonly BindableProperty DropDownItemHeightProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownItemHeight bindable property.

DropDownItemTextColorProperty

Identifies DropDownItemTextColor bindable property.

Declaration
public static readonly BindableProperty DropDownItemTextColorProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownItemTextColor bindable property.

DropDownPlacementProperty

Gets or sets the value that can be used to customize the position of the drop-down.

Declaration
public static readonly BindableProperty DropDownPlacementProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

DropDownStrokeProperty

Identifies DropDownStroke bindable property.

Declaration
public static readonly BindableProperty DropDownStrokeProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownStroke bindable property.

DropDownStrokeThicknessProperty

Identifies DropDownStrokeThickness bindable property.

Declaration
public static readonly BindableProperty DropDownStrokeThicknessProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the DropDownStrokeThickness bindable property.

DropdownWidthProperty

Identifies DropdownWidth bindable property.

Declaration
public static readonly BindableProperty DropdownWidthProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

HighlightedTextColorProperty

Identifies HighlightedTextColor bindable property.

Declaration
public static readonly BindableProperty HighlightedTextColorProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the HighlightedTextColor bindable property.

HighlightedTextFontAttributesProperty

Gets or sets the value that can be used to set the font attributes of the MatchingText in the drop-down. Identifies HighlightedTextFontAttributes bindable property.

Declaration
public static readonly BindableProperty HighlightedTextFontAttributesProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the HighlightedTextFontAttributes bindable property.

IsDropDownShadowVisibleProperty

Identifies the IsDropDownShadowVisible bindable property. This property can be used to indicate whether to show the shadow for the Dropdown or not.

Declaration
public static readonly BindableProperty IsDropDownShadowVisibleProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

ItemPaddingProperty

Identifies the ItemPadding bindable property.

Declaration
public static readonly BindableProperty ItemPaddingProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

ItemsSourceProperty

Identifies ItemsSource bindable property.

Declaration
public static readonly BindableProperty ItemsSourceProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the ItemsSource bindable property.

ItemTemplateProperty

Identifies ItemTemplate bindable property.

Declaration
public static readonly BindableProperty ItemTemplateProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the ItemTemplate bindable property.

LoadMoreTemplateProperty

Identifies the LoadMoreTemplate bindable property. This property can be used to change the LoadMoreTemplate.

Declaration
public static readonly BindableProperty LoadMoreTemplateProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

LoadMoreTextProperty

Identifies the LoadMoreText bindable property. This property can be used to change text of the LoadMore button.

Declaration
public static readonly BindableProperty LoadMoreTextProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

MaximumSuggestionProperty

Identifies the MaximumSuggestion bindable property. This property indicates the minimum number of characters to be typed for the drop-down to open.

Declaration
public static readonly BindableProperty MaximumSuggestionProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

MinimumPrefixCharactersProperty

Identifies MinimumPrefixCharacters bindable property.

Declaration
public static readonly BindableProperty MinimumPrefixCharactersProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the MinimumPrefixCharacters bindable property.

NoResultsFoundTemplateProperty

Identifies NoResultsFoundTemplate bindable property.

Declaration
public static readonly BindableProperty NoResultsFoundTemplateProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

NoResultsFoundTextProperty

Identifies NoResultsFoundText bindable property.

Declaration
public static readonly BindableProperty NoResultsFoundTextProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the NoResultsFoundText bindable property.

ReturnCommandParameterProperty

Identifies the ReturnCommandParameter bindable property. ReturnCommandParameter is a type of object and it specifies the parameter for the ReturnCommand.

Declaration
public static readonly BindableProperty ReturnCommandParameterProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the ReturnCommandParameter bindable property.

ReturnCommandProperty

Identifies the ReturnCommand bindable property.The return command will trigger whenever the return key is pressed. The default value is null.

Declaration
public static readonly BindableProperty ReturnCommandProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the ReturnCommand bindable property.

ReturnTypeProperty

Identifies the ReturnType bindable property. This property can be used to change the ReturnType.

Declaration
public static readonly BindableProperty ReturnTypeProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

SelectedDropDownItemBackgroundProperty

Identifies SelectedDropDownItemBackground bindable property.

Declaration
public static readonly BindableProperty SelectedDropDownItemBackgroundProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the SelectedDropDownItemBackground bindable property.

SelectedItemProperty

Identifies SelectedItem bindable property.

Declaration
public static readonly BindableProperty SelectedItemProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the SelectedItem bindable property.

SelectedItemsProperty

Identifies SelectedItems bindable property.

Declaration
public static readonly BindableProperty SelectedItemsProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the SelectedItems bindable property.

SelectedValuePathProperty

Identifies SelectedValuePath bindable property.

Declaration
public static readonly BindableProperty SelectedValuePathProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the SelectedValuePath bindable property.

SelectedValueProperty

Identifies SelectedValue bindable property.

Declaration
public static readonly BindableProperty SelectedValueProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the SelectedValue bindable property.

SelectionTextHighlightColorProperty

Identifies SelectionTextHighlightColor bindable property.

Declaration
public static readonly BindableProperty SelectionTextHighlightColorProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the SelectionTextHighlightColor bindable property.

ShowDropdownFooterViewProperty

Identifies ShowDropdownFooterView bindable property.

Declaration
public static readonly BindableProperty ShowDropdownFooterViewProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

ShowDropdownHeaderViewProperty

Identifies ShowDropdownHeaderView bindable property.

Declaration
public static readonly BindableProperty ShowDropdownHeaderViewProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

ShowSuggestionsOnFocusProperty

Identifies ShowSuggestionsOnFocus bindable property.

Declaration
public static readonly BindableProperty ShowSuggestionsOnFocusProperty
Field Value
Type
Microsoft.Maui.Controls.BindableProperty

TextHighlightModeProperty

Identifies TextHighlightMode bindable property.

Declaration
public static readonly BindableProperty TextHighlightModeProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the TextHighlightMode bindable property.

TextMemberPathProperty

Identifies TextMemberPath bindable property.

Declaration
public static readonly BindableProperty TextMemberPathProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the TextMemberPath bindable property.

TextProperty

Identifies Text bindable property.

Declaration
public static readonly BindableProperty TextProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the Text bindable property.

TokenItemStyleProperty

Identifies TokenItemStyle dependency property.

Declaration
public static readonly BindableProperty TokenItemStyleProperty
Field Value
Type Description
Microsoft.Maui.Controls.BindableProperty

The identifier for the TokenItemStyle dependency property.

Properties

DelimiterText

Gets or sets a string as delimiter which is displayed between the selected items in multiple selection mode.

Declaration
public string DelimiterText { get; set; }
Property Value
Type
System.String

DisplayMemberPath

Gets or sets the name or path of the property that is displayed for each data item in the drop down.

Declaration
public string DisplayMemberPath { get; set; }
Property Value
Type Description
System.String

The default value is string.Empty.
Remarks

In non-editable mode, search will be performed using DisplayMemberPath when the popup is opened. If TextMemberPath is null or string.Empty, then searching and displaying the selected value in selection box area will be based on DisplayMemberPath. If both TextMemberPath and DisplayMemberPath properties are null or string.Empty, then searching and displaying the selected value will be based on value received from object.ToString.

DropDownBackground

Gets or sets the background color that is used to display in the drop down.

Declaration
public Brush DropDownBackground { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.Brush

The default value is null.

DropdownFooterView

Gets or sets the value that can be used to customize the footer of the drop-down.

Declaration
public View DropdownFooterView { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.View

The default value is null.

DropdownFooterViewHeight

Gets or sets the value that can be used to customize the height of the drop-down footer view.

Declaration
public double DropdownFooterViewHeight { get; set; }
Property Value
Type Description
System.Double

It accepts double value, and the default value is 30.

DropdownHeaderView

Gets or sets the value that can be used to customize the header of the drop-down.

Declaration
public View DropdownHeaderView { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.View

The default value is null.

DropdownHeaderViewHeight

Gets or sets the value that can be used to customize the height of the drop-down header view.

Declaration
public double DropdownHeaderViewHeight { get; set; }
Property Value
Type Description
System.Double

It accepts double value, and the default value is 30.

DropDownItemFontAttributes

Gets or sets the font attributes that is used to display in the drop down text.

Declaration
public FontAttributes DropDownItemFontAttributes { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.FontAttributes

The default value is FontAttributes.None.

DropDownItemFontFamily

Gets or sets the font family that is used to display in the drop down text.

Declaration
public string DropDownItemFontFamily { get; set; }
Property Value
Type Description
System.String

The default value is null.

DropDownItemFontSize

Gets or sets the font size that is used to display in the drop down text.

Declaration
public double DropDownItemFontSize { get; set; }
Property Value
Type Description
System.Double

The default value is 14d.

DropDownItemHeight

Gets or sets the item height that is used to display in the drop down item.

Declaration
public double DropDownItemHeight { get; set; }
Property Value
Type Description
System.Double

The default value is if Windows or Maccatalyst 36 else 48.

DropDownItemTextColor

Gets or sets the text color that is used to display in the drop down text.

Declaration
public Color DropDownItemTextColor { get; set; }
Property Value
Type Description
Microsoft.Maui.Graphics.Color

The default value is Colors.Black.

DropDownPlacement

Gets or sets the value that can be used to customize the position of the drop-down.

Declaration
public DropDownPlacement DropDownPlacement { get; set; }
Property Value
Type Description
DropDownPlacement

It accepts DropDownPlacement value, and the default value is Bottom.

DropDownStroke

Gets or sets the stroke color that is used to display in the drop down view.

Declaration
public Brush DropDownStroke { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.Brush

The default value is Color.FromRgb(220, 220, 220) .

DropDownStrokeThickness

Gets or sets the stroke thickness that is used to display in the drop down view.

Declaration
public Thickness DropDownStrokeThickness { get; set; }
Property Value
Type Description
Microsoft.Maui.Thickness

The default value is if Windows or Maccatalyst new Thickness(1) else new Thickneess(0) .

DropdownWidth

Gets or sets the value that can be used to customize the width of the drop-down.

Declaration
public double DropdownWidth { get; set; }
Property Value
Type
System.Double

HighlightedTextColor

Gets or sets the value that can change the highlighted character's text color. 

Declaration
public Color HighlightedTextColor { get; set; }
Property Value
Type Description
Microsoft.Maui.Graphics.Color

It accepts Color value, and the default value is Blue.

HighlightedTextFontAttributes

Gets or sets the value that can be used to set the font attributes of the MatchingText in the drop-down. 

Declaration
public FontAttributes HighlightedTextFontAttributes { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.FontAttributes

It accepts FontAttributes value, and the default value is None.

IsDropDownShadowVisible

Gets or sets the value that indicates whether to show the shadow for Dropdown or not.

Declaration
public bool IsDropDownShadowVisible { get; set; }
Property Value
Type
System.Boolean

ItemPadding

Gets or sets a value that can be used to change padding between items in SfComboBox.

Declaration
public Thickness ItemPadding { get; set; }
Property Value
Type Description
Microsoft.Maui.Thickness

The default value is (10,0,0,0).

ItemsSource

Gets or sets an object source used to generate the content of the control.

Declaration
public object ItemsSource { get; set; }
Property Value
Type Description
System.Object

The default value is null.

ItemTemplate

Gets or sets the data template for dropdown item in dropdown view.

Declaration
public DataTemplate ItemTemplate { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.DataTemplate

The default value is null.

LoadMoreTemplate

Gets or sets the value of LoadMoreTemplate. This property can be used to set the LoadMoreTemplate.

Declaration
public DataTemplate LoadMoreTemplate { get; set; }
Property Value
Type
Microsoft.Maui.Controls.DataTemplate

LoadMoreText

Gets or sets the vaule of LoadMoreText. This property can be used to set the text of LoadMore button.

Declaration
public string LoadMoreText { get; set; }
Property Value
Type
System.String

MaximumSuggestion

Gets or sets the vaule of MaximumSuggestion. This property sets the initial and dynamically loading items count in LoadMore.

Declaration
public int MaximumSuggestion { get; set; }
Property Value
Type
System.Int32

MinimumPrefixCharacters

Gets or sets the value of MinimumPrefixCharacters. It determines minimum number of characters to be typed for the drop-down to open.

Declaration
public int MinimumPrefixCharacters { get; set; }
Property Value
Type
System.Int32

NoResultsFoundTemplate

Gets or sets the DataTemplate used to display in the dropdown when no results are found in the search.

Declaration
public DataTemplate NoResultsFoundTemplate { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.DataTemplate

The default value is null.

NoResultsFoundText

Gets or sets the text to display when no results are found.

Declaration
public string NoResultsFoundText { get; set; }
Property Value
Type Description
System.String

The default value is No Results Found.

ReturnCommand

Gets or sets the Returncommand to run when the user presses the return key, either physically or on the on-screen keyboard.

Declaration
public ICommand ReturnCommand { get; set; }
Property Value
Type Description
System.Windows.Input.ICommand

Specifies the Returncommand. The default value is null.

ReturnCommandParameter

Gets or sets the parameter object for the ReturnCommand that can be used to provide extra information.

Declaration
public object ReturnCommandParameter { get; set; }
Property Value
Type Description
System.Object

Specifies the ReturncommandParameter. The default value in null

ReturnType

Gets or sets the value of ReturnType. This property can be used to set the ReturnType.

Declaration
public ReturnType ReturnType { get; set; }
Property Value
Type
Microsoft.Maui.ReturnType

SelectedDropDownItemBackground

Gets or sets the selection background color that is used to display in the drop down item selected background.

Declaration
public Brush SelectedDropDownItemBackground { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.Brush

The default value is null .

SelectedItem

Gets or sets the selected item.

Declaration
public object SelectedItem { get; set; }
Property Value
Type Description
System.Object

The default value is null.
Remarks

Editor will show PlaceHolderText when no item is selected.

SelectedItems

Gets or sets selected Items

Declaration
public IList SelectedItems { get; set; }
Property Value
Type Description
System.Collections.IList

The default value is null.

SelectedValue

Gets the value of the SelectedItem obtained using SelectedValuePath.

Declaration
public object SelectedValue { get; set; }
Property Value
Type Description
System.Object

The default value is null.
Remarks

The value of the selected item.

SelectedValuePath

Gets or sets the property path that is used to get the SelectedValue property of the SelectedItem property.

Declaration
public string SelectedValuePath { get; set; }
Property Value
Type Description
System.String

The default value is string.Empty.
Remarks

If SelectedValuePath is null, SelectedValue will be received from object.ToString.

SelectionTextHighlightColor

Gets or sets the selection color that is used to display in the input view text background.

Declaration
public Color SelectionTextHighlightColor { get; set; }
Property Value
Type Description
Microsoft.Maui.Graphics.Color

The default value is if Windows Color.FromRgba("#0078d7") else if Android Color.FromRgba("#AA9DD6") else Color.FromRgba("#aed5fa") .

ShowDropdownFooterView

Gets or sets a value that indicates whether the drop-down footer view is shown or not.

Declaration
public bool ShowDropdownFooterView { get; set; }
Property Value
Type Description
System.Boolean

It accepts boolean value and the default value is false.

ShowDropdownHeaderView

Gets or sets a value that indicates whether the drop-down header view is shown or not.

Declaration
public bool ShowDropdownHeaderView { get; set; }
Property Value
Type Description
System.Boolean

It accepts boolean value and the default value is false.

ShowSuggestionsOnFocus

Gets or sets a value indicating whether the complete suggestion list should be displayed when an empty input field is focused.

Declaration
public bool ShowSuggestionsOnFocus { get; set; }
Property Value
Type Description
System.Boolean

It accepts boolean value and the default value is false.

Text

Gets the text that is used to display in the text box portion of the control.

Declaration
public string Text { get; set; }
Property Value
Type Description
System.String

The default value is string.Empty.
Remarks

This property does not have effect in non-editable mode.

TextHighlightMode

Gets or sets the value that can be used to highlight whether the first character or all the same characters in the text.  

Declaration
public OccurrenceMode TextHighlightMode { get; set; }
Property Value
Type Description
OccurrenceMode

It accepts OccurrenceMode  value, and the default value is None.

TextMemberPath

Gets or sets the property path that is used to display the selected value in the text box portion or non-editable display area.

Declaration
public string TextMemberPath { get; set; }
Property Value
Type Description
System.String

The default value is string.Empty.
Remarks

In editable mode, search will be performed using TextMemberPath. In non-editable mode, search will be performed using TextMemberPath when the popup is not opened. In non-editable mode, search will be performed using DisplayMemberPath when the popup is opened. If TextMemberPath is null or string.Empty, then searching and displaying the selected value in selection box area will be based on DisplayMemberPath. If both TextMemberPath and DisplayMemberPath properties are null or string.Empty, then searching and displaying the selected value will be based on value received from object.ToString.

TokenItemStyle

Gets or sets the Style that is used to display the token items.

Declaration
public Style TokenItemStyle { get; set; }
Property Value
Type Description
Microsoft.Maui.Controls.Style

The default value is null.
Remarks

It applicable for multi-selection token mode only.

Methods

ArrangeContent(Rect)

Arrange Content method.

Declaration
protected override Size ArrangeContent(Rect bounds)
Parameters
Type Name Description
Microsoft.Maui.Graphics.Rect bounds
Returns
Type
Microsoft.Maui.Graphics.Size
Overrides

Clear()

Clear all the values in SelectedItem and InputView.Text

Declaration
public void Clear()

Finalize()

Destructor of the DropDownListBase class.

Declaration
protected override void Finalize()
Overrides

OnHandlerChanged()

Handler changed method.

Declaration
protected override void OnHandlerChanged()
Overrides

OnPropertyChanged(String)

PropertyChanged method.

Declaration
protected override void OnPropertyChanged(string propertyName = null)
Parameters
Type Name Description
System.String propertyName

OnSizeAllocated(Double, Double)

Invoked when the size of the view is allocated.

Declaration
protected override void OnSizeAllocated(double width, double height)
Parameters
Type Name Description
System.Double width

The allocated width.
System.Double height

The allocated height.

Events

Completed

The completed event gets raised when pressing enter key or return key after the text is entered in the input field. It is applicable only for editable modes.

Declaration
public event EventHandler Completed
Event Type
Type
System.EventHandler

DropDownClosed

Occurs when the dropdown popup is closed.

Declaration
public event EventHandler DropDownClosed
Event Type
Type
System.EventHandler

Focused

Occurs when the control get focused.

Declaration
public event EventHandler<FocusEventArgs> Focused
Event Type
Type
System.EventHandler<Microsoft.Maui.Controls.FocusEventArgs>

LoadMoreButtonTapped

Occurs when the LoadMore button is tapped.

Declaration
public event EventHandler<EventArgs> LoadMoreButtonTapped
Event Type
Type
System.EventHandler<System.EventArgs>

SelectionChanged

Occurs when the current selection is changed.

Declaration
public event EventHandler<SelectionChangedEventArgs> SelectionChanged
Event Type
Type
System.EventHandler<SelectionChangedEventArgs>

SelectionChanging

Occurs when the current selection is changing.

Declaration
public event EventHandler<SelectionChangingEventArgs> SelectionChanging
Event Type
Type
System.EventHandler<SelectionChangingEventArgs>

Unfocused

Occurs when the control get unfocused.

Declaration
public event EventHandler<FocusEventArgs> Unfocused
Event Type
Type
System.EventHandler<Microsoft.Maui.Controls.FocusEventArgs>

Implements

Microsoft.Maui.Graphics.IDrawable
Microsoft.Maui.IAbsoluteLayout
Microsoft.Maui.ILayout
Microsoft.Maui.IView
Microsoft.Maui.IElement
Microsoft.Maui.ITransform
Microsoft.Maui.IContainer
System.Collections.Generic.IList<>
System.Collections.Generic.ICollection<>
System.Collections.Generic.IEnumerable<>
System.Collections.IEnumerable
Microsoft.Maui.ISafeAreaView
Microsoft.Maui.IPadding
Microsoft.Maui.ICrossPlatformLayout
Microsoft.Maui.IVisualTreeElement