WorksheetBase.Unprotect Method

Artikel
07/25/2011

Removes protection from the worksheet. This method has no effect if the worksheet is not protected.

Namespace: Microsoft.Office.Tools.Excel
Assembly: Microsoft.Office.Tools.Excel.v4.0.Utilities (in Microsoft.Office.Tools.Excel.v4.0.Utilities.dll)

Syntax

'Declaration
Public Sub Unprotect ( _
    password As Object _
)

public void Unprotect(
    Object password
)

Parameters

password
Type: System.Object
The case-sensitive password to use to unprotect the worksheet. If the worksheet is not protected with a password, this argument is ignored. If you omit this argument for a worksheet that is protected with a password, you will be prompted for the password.

Remarks

If you forget the password, you cannot unprotect the worksheet. It is a good idea to keep a list of your passwords and their corresponding document names in a safe place.

Optional Parameters

For information on optional parameters, see Optional Parameters in Office Solutions.

Examples

The following code example determines whether the cell contents of the current worksheet are protected. If the cell contents are protected, then the example prompts the user to unprotect the cell contents by using the Unprotect method.

This example is for a document-level customization.

Private Sub PromptUnprotectWorksheet()
    If Me.ProtectContents Then
        If DialogResult.Yes = MessageBox.Show("The worksheet is protected. " & _
            "Unprotect the worksheet?", "Example", MessageBoxButtons.YesNo) Then
            Me.Unprotect()
        End If
    End If
End Sub

private void PromptUnprotectWorksheet()
{
    if (this.ProtectContents)
    {
        if (DialogResult.Yes == MessageBox.Show("The worksheet is protected. " +
            "Unprotect the worksheet?", "Example",
            MessageBoxButtons.YesNo))
        {
            this.Unprotect(missing);
        }
    }
}

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

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