IBrowserHostRunFileDialog Method

void RunFileDialog(
	CefFileDialogMode mode,
	string title,
	string defaultFilePath,
	IList<string> acceptFilters,
	IRunFileDialogCallback callback
)

void RunFileDialog(
	CefFileDialogMode mode, 
	String^ title, 
	String^ defaultFilePath, 
	IList<String^>^ acceptFilters, 
	IRunFileDialogCallback^ callback
)

Parameters

mode  CefFileDialogMode

represents the type of dialog to display

title  String

to the title to be used for the dialog and may be empty to show the default title ("Open" or "Save" depending on the mode)

defaultFilePath  String

is the path with optional directory and/or file name component that will be initially selected in the dialog

acceptFilters  IListString

are used to restrict the selectable file types and may any combination of (a) valid lower-cased MIME types (e.g. "text/*" or "image/*"), (b) individual file extensions (e.g. ".txt" or ".png"), or (c) combined description and file extension delimited using "|" and ";" (e.g. "Image Types|.png;.gif;.jpg")

callback  IRunFileDialogCallback

will be executed after the dialog is dismissed or immediately if another dialog is already pending.

Reference