RichEditControl.EncryptedFilePasswordRequested Event

Occurs when the RichEditDocumentImportOptions.EncryptionPassword property is not set.

Namespace: DevExpress.XtraRichEdit

Assembly: DevExpress.XtraRichEdit.v23.2.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.RichEdit, DevExpress.Win.TreeMap

Declaration

C#

public event EncryptedFilePasswordRequestedEventHandler EncryptedFilePasswordRequested

VB.NET

Public Event EncryptedFilePasswordRequested As EncryptedFilePasswordRequestedEventHandler

Event Data

The EncryptedFilePasswordRequested event's data class is EncryptedFilePasswordRequestedEventArgs. The following properties provide information specific to this event:

Property	Description
Cancel	Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
DocumentName	Gets the name of the encrypted document.
Password	Gets or sets the password used to encrypt the document.

Remarks

The EncryptedFilePasswordRequested event allows you to specify a password in code using the Password property. If the given password is invalid, the RichEditDocumentServer.EncryptedFilePasswordCheckFailed event raises.

View Example: Document Encryption (Simple Example)

C#

private void RichEditControl1_EncryptedFilePasswordRequested(object sender, EncryptedFilePasswordRequestedEventArgs e)
{
    //Count the number of attempts to enter the password
    if (tryCount > 0)
    {
        tryCount--;
    }
}

private void RichEditControl1_EncryptedFilePasswordCheckFailed(object sender, EncryptedFilePasswordCheckFailedEventArgs e)
{

    //Analyze the error that led to this event
    //Depending on the user input and number of attempts,
    //Prompt user to enter a password again
    //or create an empty file
    switch (e.Error)
    {
        case RichEditDecryptionError.PasswordRequired:
            if (tryCount > 0)
            {
                e.TryAgain = true;
                e.Handled = true;
                MessageBox.Show("You did not enter the password!", String.Format(" {0} attempts left", tryCount));
            }
            else
                e.TryAgain = false;

            break;

        case RichEditDecryptionError.WrongPassword:
            if (tryCount > 0)
            {
                if ((MessageBox.Show("The password is incorrect. Try Again?", String.Format(" {0} attempts left", tryCount),
                    MessageBoxButtons.YesNo)) == DialogResult.Yes)
                {
                    e.TryAgain = true;
                    e.Handled = true;
                }

            }
            break;
    }
}

VB.NET

Private Sub RichEditControl1_EncryptedFilePasswordRequested(ByVal sender As Object, ByVal e As EncryptedFilePasswordRequestedEventArgs) Handles richEditControl1.EncryptedFilePasswordRequested
    'Count the number of attempts to enter the password
    If tryCount > 0 Then
        tryCount -= 1
    End If
End Sub

Private Sub RichEditControl1_EncryptedFilePasswordCheckFailed(ByVal sender As Object, ByVal e As EncryptedFilePasswordCheckFailedEventArgs) Handles richEditControl1.EncryptedFilePasswordCheckFailed

    'Analyze the error that led to this event
    'Depending on the user input and number of attempts,
    'Prompt user to enter a password again
    'or create an empty file
    Select Case e.Error
        Case RichEditDecryptionError.PasswordRequired
            If tryCount > 0 Then
                e.TryAgain = True
                e.Handled = True
                MessageBox.Show("You did not enter the password!", String.Format(" {0} attempts left", tryCount))
            Else
                e.TryAgain = False
            End If


        Case RichEditDecryptionError.WrongPassword
            If tryCount > 0 Then
                If (MessageBox.Show("The password is incorrect. Try Again?", String.Format(" {0} attempts left", tryCount), MessageBoxButtons.YesNo)) = DialogResult.Yes Then
                    e.TryAgain = True
                    e.Handled = True
                End If

            End If
    End Select

End Sub