WorkbookBase.PasswordEncryptionFileProperties Property

Reference

Definition

Namespace:: Microsoft.Office.Tools.Excel

Assembly:: Microsoft.Office.Tools.Excel.v4.0.Utilities.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets a value that indicates whether Microsoft Office Excel encrypts file properties for the specified password-protected workbook.

public:
 property bool PasswordEncryptionFileProperties { bool get(); };

public bool PasswordEncryptionFileProperties { get; }

member this.PasswordEncryptionFileProperties : bool

Public ReadOnly Property PasswordEncryptionFileProperties As Boolean

Property Value

Boolean

true if Excel encrypts file properties for the specified password-protected workbook; otherwise, false.

Examples

The following code example checks the value of the HasPassword property to determine whether the workbook is password protected. If the workbook is not password protected, then the example sets the Password property to a password obtained from user input, and then calls the SetPasswordEncryptionOptions method to set the encryption algorithm, set the key length, set the name of the encryption provider, and enable file property encryption. The example then displays the values of the PasswordEncryptionProvider, PasswordEncryptionAlgorithm, PasswordEncryptionKeyLength, and PasswordEncryptionFileProperties properties in worksheet Sheet1. This example assumes that the method GetPasswordFromUserInput is defined elsewhere.

This example is for a document-level customization.

private void WorkbookPasswordOptions()
{
    if (!this.HasPassword)
    {
        this.Password = GetPasswordFromUserInput();
        this.SetPasswordEncryptionOptions(
            "Microsoft RSA SChannel Cryptographic Provider",
            "RC4", 128, true);
    }

    // Display the password properties in Sheet1.
    Globals.Sheet1.Range["A1"].Value2 =
        "Password Encryption Provider:";
    Globals.Sheet1.Range["A2"].Value2 =
        "Password Encryption Algorithm:";
    Globals.Sheet1.Range["A3"].Value2 =
        "Password Encryption Key Length:";
    Globals.Sheet1.Range["A4"].Value2 =
        "Password Encryption File Properties:";
    Globals.Sheet1.Range["A1", "A4"].Columns.AutoFit();

    Globals.Sheet1.Range["B1"].Value2 =
        this.PasswordEncryptionProvider;
    Globals.Sheet1.Range["B2"].Value2 =
        this.PasswordEncryptionAlgorithm;
    Globals.Sheet1.Range["B3"].Value2 =
        this.PasswordEncryptionKeyLength;
    Globals.Sheet1.Range["B4"].Value2 =
        this.PasswordEncryptionFileProperties;
    Globals.Sheet1.Range["B1", "B4"].Columns.AutoFit();
}

Private Sub WorkbookPasswordOptions()
    If Not Me.HasPassword Then
        Me.Password = GetPasswordFromUserInput()
        Me.SetPasswordEncryptionOptions( _
            "Microsoft RSA SChannel Cryptographic Provider", _
            "RC4", 128, True)
    End If

    ' Display the password properties in Sheet1.
    Globals.Sheet1.Range("A1").Value2 = _
        "Password Encryption Provider:"
    Globals.Sheet1.Range("A2").Value2 = _
        "Password Encryption Algorithm:"
    Globals.Sheet1.Range("A3").Value2 = _
        "Password Encryption Key Length:"
    Globals.Sheet1.Range("A4").Value2 = _
        "Password Encryption File Properties:"
    Globals.Sheet1.Range("A1", "A4").Columns.AutoFit()

    Globals.Sheet1.Range("B1").Value2 = _
        Me.PasswordEncryptionProvider
    Globals.Sheet1.Range("B2").Value2 = _
        Me.PasswordEncryptionAlgorithm
    Globals.Sheet1.Range("B3").Value2 = _
        Me.PasswordEncryptionKeyLength
    Globals.Sheet1.Range("B4").Value2 = _
        Me.PasswordEncryptionFileProperties
    Globals.Sheet1.Range("B1", "B4").Columns.AutoFit()
End Sub

Remarks

Use the SetPasswordEncryptionOptions method to specify whether Excel encrypts file properties for the specified password-protected workbook.

Applies to

Compartilhar via