Class

PromptInputAttachedFilesElement

Initializes a new instance of the PromptInputAttachedFilesElement class.

Declaration

public PromptInputAttachedFilesElement()

Gets the collection of attached files displayed in the files area.

Declaration

[Browsable(false)]
public ObservableCollection<PromptInputAttachedFile> AttachedFiles { get; }

Property Value

Gets the attached files wrap layout panel.

Declaration

[Browsable(false)]
public WrapLayoutPanel AttachedFilesPanel { get; }

Property Value

Gets or sets a callback that resolves the icon displayed next to an attached file. The callback receives the file name and should return a PromptInputFileIcon containing a glyph character, an Image, or a RadSvgImage. Return null to fall back to the default extension-based glyph.

Declaration

[Browsable(false)]
public Func<string, PromptInputFileIcon> FileIconProvider { get; set; }

Property Value

Gets or sets the maximum number of visible rows before a scrollbar appears.

Declaration

public int MaxVisibleRows { get; set; }

Property Value

Gets the scroll viewer that wraps the attached files panel.

Declaration

[Browsable(false)]
public RadScrollViewer ScrollViewer { get; }

Property Value

Opens the file attachment dialog for all file types.

Declaration

public void AttachFiles()

Opens the file attachment dialog for image file types.

Declaration

public void AttachPhotos()

Creates a visual element representing an attached file chip. Override to customize.

Declaration

protected virtual PromptInputAttachedFileElement CreateAttachedFileChip(PromptInputAttachedFile file)

Parameters

Returns

Creates the attached files wrap layout panel. Override to customize.

Declaration

protected virtual WrapLayoutPanel CreateAttachedFilesPanel()

Returns

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

Declaration

protected override void CreateChildElements()

Overrides RadElement.CreateChildElements()

Creates the scroll viewer that wraps the attached files panel. Override to customize.

Declaration

protected virtual RadScrollViewer CreateScrollViewer()

Returns

Disposes of managed resources including cached images and SVG images when the element is being disposed.

Declaration

protected override void DisposeManagedResources()

Overrides LightVisualElement.DisposeManagedResources()

Initializes the internal fields and components of the LightVisualElement. This method sets up text primitives, image primitives, and layout management components.

Declaration

protected override void InitializeFields()

Overrides LightVisualElement.InitializeFields()

Raises the AttachedFileRemoved event.

Declaration

protected virtual void OnAttachedFileRemoved(PromptInputAttachedFileRemovedEventArgs args)

Parameters

Raises the AttachedFileRemoving event.

Declaration

protected virtual void OnAttachedFileRemoving(PromptInputAttachedFileRemovingEventArgs args)

Parameters

Raises the AttachedFilesChanged event.

Declaration

protected virtual void OnAttachedFilesChanged(EventArgs args)

Parameters

Raises the DialogOpening event.

Declaration

protected virtual void OnDialogOpening(PromptInputDialogOpeningEventArgs args)

Parameters

Raises the MouseWheel event.

Declaration

protected override void OnMouseWheel(MouseEventArgs e)

Parameters

Overrides RadElement.OnMouseWheel(MouseEventArgs)

Removes the specified file from the AttachedFiles collection. Raises AttachedFileRemoving beforehand (cancelable) and AttachedFileRemoved afterwards.

Declaration

public void RemoveAttachedFile(PromptInputAttachedFile file)

Parameters

Occurs after an attached file has been removed from the AttachedFiles collection via RemoveAttachedFile(PromptInputAttachedFile).

Declaration

public event PromptInputAttachedFileRemovedEventHandler AttachedFileRemoved

Event Value

Occurs before an attached file is removed as a result of the user clicking the remove button on its chip. Set Cancel to true to keep the file in the AttachedFiles collection.

Declaration

public event PromptInputAttachedFileRemovingEventHandler AttachedFileRemoving

Event Value

Occurs when the attached files collection changes. Used by the parent element to update the send button state.

Declaration

public event EventHandler AttachedFilesChanged

Event Value

Occurs when a file dialog is about to open. Set Cancel to true to suppress the built-in dialog and handle file selection externally; populate FileNames in that case to still create attachments.

Declaration

public event PromptInputDialogOpeningEventHandler DialogOpening

Event Value