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OpenFileDialog Class

Represents a common dialog box that allows a user to specify a filename for one or more files to open.

Namespace:  Microsoft.Win32
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: Not mapped to an xmlns.

'Declaration
Public NotInheritable Class OpenFileDialog _
	Inherits FileDialog
You cannot declare this managed class in XAML.

The OpenFileDialog type exposes the following members.

  NameDescription
Public methodOpenFileDialogInitializes a new instance of the OpenFileDialog class.
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  NameDescription
Public propertyAddExtensionGets or sets a value indicating whether a file dialog automatically adds an extension to a file name if the user omits an extension. (Inherited from FileDialog.)
Public propertyCheckFileExistsGets or sets a value indicating whether a file dialog displays a warning if the user specifies a file name that does not exist. (Inherited from FileDialog.)
Public propertyCheckPathExistsGets or sets a value that specifies whether warnings are displayed if the user types invalid paths and file names. (Inherited from FileDialog.)
Public propertyCustomPlacesGets or sets the list of custom places for file dialog boxes. (Inherited from FileDialog.)
Public propertyDefaultExtGets or sets a value that specifies the default extension string to use to filter the list of files that are displayed. (Inherited from FileDialog.)
Public propertyDereferenceLinksGets or sets a value indicating whether a file dialog returns either the location of the file referenced by a shortcut or the location of the shortcut file (.lnk). (Inherited from FileDialog.)
Public propertyFileNameGets or sets a string containing the full path of the file selected in a file dialog. (Inherited from FileDialog.)
Public propertyFileNamesGets an array that contains one file name for each selected file. (Inherited from FileDialog.)
Public propertyFilterGets or sets the filter string that determines what types of files are displayed from either the OpenFileDialog or SaveFileDialog. (Inherited from FileDialog.)
Public propertyFilterIndexGets or sets the index of the filter currently selected in a file dialog. (Inherited from FileDialog.)
Public propertyInitialDirectoryGets or sets the initial directory that is displayed by a file dialog. (Inherited from FileDialog.)
Public propertyMultiselectGets or sets an option indicating whether OpenFileDialog allows users to select multiple files.
Protected propertyOptionsGets the Win32 common file dialog flags that are used by file dialogs for initialization. (Inherited from FileDialog.)
Public propertyReadOnlyCheckedGets or sets a value indicating whether the read-only check box displayed by OpenFileDialog is selected.
Public propertyRestoreDirectoryThis property is not implemented. (Inherited from FileDialog.)
Public propertySafeFileNameGets a string that only contains the file name for the selected file. (Inherited from FileDialog.)
Public propertySafeFileNamesGets an array that contains one safe file name for each selected file. (Inherited from FileDialog.)
Public propertyShowReadOnlyGets or sets a value indicating whether OpenFileDialog contains a read-only check box.
Public propertyTagGets or sets an object associated with the dialog. This provides the ability to attach an arbitrary object to the dialog. (Inherited from CommonDialog.)
Public propertyTitleGets or sets the text that appears in the title bar of a file dialog. (Inherited from FileDialog.)
Public propertyValidateNamesGets or sets a value indicating whether the dialog accepts only valid Win32 file names. (Inherited from FileDialog.)
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  NameDescription
Protected methodCheckPermissionsToShowDialogDetermines whether sufficient permissions for displaying a dialog exist. (Inherited from CommonDialog.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodHookProcDefines the common file dialog hook procedure that is overridden to add common functionality to a file dialog. (Inherited from FileDialog.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Protected methodOnFileOkRaises the FileOk event. (Inherited from FileDialog.)
Public methodOpenFileOpens a read-only stream for the file that is selected by the user using OpenFileDialog.
Public methodOpenFilesCreates an array that contains one read-only stream for each file selected by the user using OpenFileDialog.
Public methodResetResets all OpenFileDialog properties to their default values. (Overrides FileDialog.Reset.)
Protected methodRunDialogRunDialog is called to display a file dialog in a derived class, such as OpenFileDialog and SaveFileDialog. (Inherited from FileDialog.)
Public methodShowDialogDisplays a common dialog. (Inherited from CommonDialog.)
Public methodShowDialog(Window)Displays a common dialog. (Inherited from CommonDialog.)
Public methodToStringReturns a string that represents a file dialog. (Inherited from FileDialog.)
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  NameDescription
Public eventFileOkOccurs when the user selects a file name by either clicking the Open button of the OpenFileDialog or the Save button of the SaveFileDialog. (Inherited from FileDialog.)
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The following figure shows an OpenFileDialog for Windows Vista.

Open dialog box

Starting in Windows Vista, open and save file dialog boxes have a Favorite Links panel on the left side of the dialog box that allows the user to quickly navigate to a different location. These links are called custom places. Use the CustomPlaces property to set this list of links.

The following example shows how to create an OpenFileDialog that contains a default file name and extension type.


' Configure open file dialog box
Dim dlg As New Microsoft.Win32.OpenFileDialog()
dlg.FileName = "Document" ' Default file name
dlg.DefaultExt = ".txt" ' Default file extension
dlg.Filter = "Text documents (.txt)|*.txt" ' Filter files by extension

' Show open file dialog box
Dim result? As Boolean = dlg.ShowDialog()

' Process open file dialog box results
If result = True Then
    ' Open document
    Dim filename As String = dlg.FileName
End If


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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