Wyliczenie ExceptionMessageBoxSymbol

Określa symbol, który jest wyświetlany w polu komunikat o wyjątku.

Przestrzeń nazw:  Microsoft.SqlServer.MessageBox
Zestaw:  Microsoft.ExceptionMessageBox (w Microsoft.ExceptionMessageBox.dll)

Syntax

'Deklaracja
Public Enumeration ExceptionMessageBoxSymbol
'Użycie
Dim instance As ExceptionMessageBoxSymbol

public enum ExceptionMessageBoxSymbol

public enum class ExceptionMessageBoxSymbol

type ExceptionMessageBoxSymbol

public enum ExceptionMessageBoxSymbol

Elementy członkowskie

	Nazwa elementu członkowskiego	Opis
	None	Brak symbolu.
	Warning	Symbol ostrzegawczy systemu.
	Information	Symbol informacje systemowe.
	Error	Symbol błędu systemu.
	Exclamation	Symbol wykrzyknika systemu.
	Asterisk	Symbol gwiazdki systemu.
	Question	Symbol znaku zapytania systemu.
	Hand	Symbol dłoni systemu.
	Stop	Symbol znaku zatrzymania systemu.

Uwagi

Członkowie ExceptionMessageBoxSymbol są obsługiwane przez system graficzny ikon.

Przykłady

          try
            {
                // Do something that could generate an exception.
                throw new ApplicationException("An error has occured.");
            }
            catch (ApplicationException ex)
            {
                string str = "The action failed. Do you want to continue?";
                ApplicationException exTop = new ApplicationException(str, ex);
                exTop.Source = this.Text;

                // Show a message box with Yes and No buttons
                ExceptionMessageBox box = new ExceptionMessageBox(exTop,
                    ExceptionMessageBoxButtons.YesNo,
                    ExceptionMessageBoxSymbol.Question,
                    ExceptionMessageBoxDefaultButton.Button2);

                // Enable the check box.
                box.ShowCheckBox = true;

                // Define the registry key to use.
                box.CheckBoxRegistryKey =
                    Microsoft.Win32.Registry.CurrentUser.CreateSubKey(
                    @"Software\TestApp");
                box.CheckBoxRegistryValue = "DontShowActionFailedMessage";
                box.CheckBoxRegistryMeansDoNotShowDialog = true;
                box.DefaultDialogResult = DialogResult.Yes;

                // The message box won’t be displayed if the
                // "DontShowActionFailedMessage" value of the registry key 
                // contains a non-zero value.
                if (box.Show(this) == DialogResult.No)
                {
                    // Do something if the user clicks the No button.
                    this.Close();
                }
            }

Try
    ' Do something that could generate an exception.
    Throw New ApplicationException("An error has occured.")
Catch ex As ApplicationException
    Dim str As String = "The action failed. Do you want to continue?"
    Dim exTop As ApplicationException = New ApplicationException(str, ex)
    exTop.Source = Me.Text

    ' Show a message box with Yes and No buttons
    Dim box As ExceptionMessageBox = New ExceptionMessageBox(exTop, _
     ExceptionMessageBoxButtons.YesNo, _
     ExceptionMessageBoxSymbol.Question, _
     ExceptionMessageBoxDefaultButton.Button2)

    ' Enable the check box.
    box.ShowCheckBox = True

    ' Define the registry key to use.
    box.CheckBoxRegistryKey = _
    Microsoft.Win32.Registry.CurrentUser.CreateSubKey( _
     "Software\TestApp")
    box.CheckBoxRegistryValue = "DontShowActionFailedMessage"
    box.CheckBoxRegistryMeansDoNotShowDialog = True
    box.DefaultDialogResult = Windows.Forms.DialogResult.Yes

    ' The message box won�t be displayed if the
    ' "DontShowActionFailedMessage" value of the registry key 
    ' contains a non-zero value.
    If box.Show(Me) = Windows.Forms.DialogResult.No Then
        ' Do something if the user clicks the No button.
        Me.Close()
    End If
End Try

Zobacz także

Reference

Przestrzeń nazw Microsoft.SqlServer.MessageBox