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FileDialogPermissionAccess Enumeration
.NET Framework 1.1
Specifies the type of access to files allowed through the file dialog.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.
[Visual Basic] <Flags> <Serializable> Public Enum FileDialogPermissionAccess [C#] [Flags] [Serializable] public enum FileDialogPermissionAccess [C++] [Flags] [Serializable] __value public enum FileDialogPermissionAccess [JScript] public Flags Serializable enum FileDialogPermissionAccess
Members
| Member name | Description | Value |
|---|---|---|
| None | No access to files through the file dialog. | 0 |
| Open | Ability to open files through the file dialog. | 1 |
| OpenSave | Ability to open and save files through the file dialog. | 3 |
| Save | Ability to save files through the file dialog. | 2 |
Example
[Visual Basic] ' This class generates FileDialogPermission objects using FileDialogPermissionAccess enumeration values. Imports System Imports System.Security Imports System.Security.Permissions Imports Microsoft.VisualBasic Public Class FileDialogGenerator Private myFileDialog As FileDialogPermissionAccess() = _ {FileDialogPermissionAccess.None, _ FileDialogPermissionAccess.Open, _ FileDialogPermissionAccess.OpenSave, _ FileDialogPermissionAccess.Save} Private fileDialogIndex As Integer = 0 Public Sub New() ResetIndex() End Sub 'New Public Sub ResetIndex() fileDialogIndex = 0 End Sub 'ResetIndex ' Create a FileDialogPermission. Public Function CreateFileDialog(ByRef fileDialogPerm As FileDialogPermission, ByRef fileDialog As FileDialogPermissionAccess) As Boolean If fileDialogIndex >= myFileDialog.Length Then fileDialogPerm = New FileDialogPermission(PermissionState.None) fileDialog = FileDialogPermissionAccess.None Return False End If fileDialog = myFileDialog(fileDialogIndex) fileDialogIndex = fileDialogIndex + 1 Try fileDialogPerm = New FileDialogPermission(fileDialog) Return True Catch e As Exception Console.WriteLine(("Cannot create FileDialogPermission: " & fileDialog & " " & e.ToString())) fileDialogPerm = New FileDialogPermission(PermissionState.None) fileDialog = FileDialogPermissionAccess.None Return True End Try End Function 'CreateFileDialog End Class 'FileDialogGenerator ' End of FileDialogGenerator. [C#] // This class generates FileDialogPermission objects using FileDialogPermissionAccess enumeration values. using System; using System.Security; using System.Security.Permissions; public class FileDialogGenerator { private FileDialogPermissionAccess[] myFileDialog = { FileDialogPermissionAccess.None, FileDialogPermissionAccess.Open, FileDialogPermissionAccess.OpenSave, FileDialogPermissionAccess.Save}; private int fileDialogIndex = 0; public FileDialogGenerator() { ResetIndex(); } public void ResetIndex() { fileDialogIndex = 0; } // Create a FileDialogPermission. public bool CreateFileDialog(out FileDialogPermission fileDialogPerm, out FileDialogPermissionAccess fileDialog) { if(fileDialogIndex >= myFileDialog.Length) { fileDialogPerm = new FileDialogPermission(PermissionState.None); fileDialog=FileDialogPermissionAccess.None; return false; } fileDialog = myFileDialog[fileDialogIndex++]; try { fileDialogPerm = new FileDialogPermission(fileDialog); return true; } catch(Exception e) { Console.WriteLine("Cannot create FileDialogPermission: " + fileDialog +" "+e); fileDialogPerm = new FileDialogPermission(PermissionState.None); fileDialog=FileDialogPermissionAccess.None; return true; } } } // End of FileDialogGenerator. [C++] // This class generates FileDialogPermission objects using FileDialogPermissionAccess enumeration values. #using <mscorlib.dll> using namespace System::Runtime::InteropServices; using namespace System; using namespace System::Security; using namespace System::Security::Permissions; public __gc class FileDialogGenerator { private: FileDialogPermissionAccess myFileDialog[]; int fileDialogIndex; public: FileDialogGenerator() { ResetIndex(); FileDialogPermissionAccess tempFileDialog[] = { FileDialogPermissionAccess::None, FileDialogPermissionAccess::Open, FileDialogPermissionAccess::OpenSave, FileDialogPermissionAccess::Save}; myFileDialog = tempFileDialog; } void ResetIndex() { fileDialogIndex = 0; } // Create a FileDialogPermission. bool CreateFileDialog([Out]FileDialogPermission** fileDialogPerm, [Out]FileDialogPermissionAccess* fileDialog) { if(fileDialogIndex >= myFileDialog->Length) { *fileDialogPerm = new FileDialogPermission(PermissionState::None); *fileDialog=FileDialogPermissionAccess::None; return false; } *fileDialog = myFileDialog[fileDialogIndex++]; try { *fileDialogPerm = new FileDialogPermission(*fileDialog); return true; } catch(Exception* e) { Console::WriteLine(S"Cannot create FileDialogPermission: {0} {1}", __box(*fileDialog), e); *fileDialogPerm = new FileDialogPermission(PermissionState::None); *fileDialog=FileDialogPermissionAccess::None; return true; } } }; // End of FileDialogGenerator.
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Requirements
Namespace: System.Security.Permissions
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
Assembly: Mscorlib (in Mscorlib.dll)
See Also
System.Security.Permissions Namespace | FileDialogPermission | FileDialogPermissionAttribute
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