DialogResult 枚举

定义

指定标识符以指示对话框的返回值。Specifies identifiers to indicate the return value of a dialog box.

public enum class DialogResult
[System.Runtime.InteropServices.ComVisible(true)]
public enum DialogResult
type DialogResult = 
Public Enum DialogResult
继承
DialogResult
属性

字段

Abort 3

对话框的返回值是 Abort(通常从标签为“中止”的按钮发送)。The dialog box return value is Abort (usually sent from a button labeled Abort).

Cancel 2

对话框的返回值是 Cancel(通常从标签为“取消”的按钮发送)。The dialog box return value is Cancel (usually sent from a button labeled Cancel).

Ignore 5

对话框的返回值是 Ignore(通常从标签为“忽略”的按钮发送)。The dialog box return value is Ignore (usually sent from a button labeled Ignore).

No 7

对话框的返回值是 No(通常从标签为“否”的按钮发送)。The dialog box return value is No (usually sent from a button labeled No).

None 0

从对话框返回了 NothingNothing is returned from the dialog box. 这表明有模式对话框继续运行。This means that the modal dialog continues running.

OK 1

对话框的返回值是 OK(通常从标签为“确定”的按钮发送)。The dialog box return value is OK (usually sent from a button labeled OK).

Retry 4

对话框的返回值是 Retry(通常从标签为“重试”的按钮发送)。The dialog box return value is Retry (usually sent from a button labeled Retry).

Yes 6

对话框的返回值是 Yes(通常从标签为“是”的按钮发送)。The dialog box return value is Yes (usually sent from a button labeled Yes).

示例

下面的代码示例演示如何使用 Show的此重载支持的选项显示 MessageBoxThe following code example demonstrates how to display a MessageBox with the options supported by this overload of Show. 在验证字符串变量 ServerName为空后,该示例将显示一个 MessageBox,为用户提供取消操作的选项。After verifying that a string variable, ServerName, is empty, the example displays a MessageBox, offering the user the option to cancel the operation. 如果 Show 方法的返回值的计算结果为 "是",则将关闭显示 MessageBox 的窗体。If the Show method's return value evaluates to Yes, the form that displayed the MessageBox is closed.

private:
   void validateUserEntry5()
   {
      // Checks the value of the text.
      if ( serverName->Text->Length == 0 )
      {
         // Initializes the variables to pass to the MessageBox::Show method.
         String^ message = "You did not enter a server name. Cancel this operation?";
         String^ caption = "No Server Name Specified";
         MessageBoxButtons buttons = MessageBoxButtons::YesNo;
         System::Windows::Forms::DialogResult result;

         // Displays the MessageBox.
         result = MessageBox::Show( this, message, caption, buttons );
         if ( result == ::DialogResult::Yes )
         {
            // Closes the parent form.
            this->Close();
         }
      }
   }
private void validateUserEntry5()
{

    // Checks the value of the text.

    if(serverName.Text.Length == 0)
    {

        // Initializes the variables to pass to the MessageBox.Show method.

        string message = "You did not enter a server name. Cancel this operation?";
        string caption = "No Server Name Specified";
        MessageBoxButtons buttons = MessageBoxButtons.YesNo;
        DialogResult result;

        // Displays the MessageBox.

        result = MessageBox.Show(this, message, caption, buttons);

        if(result == DialogResult.Yes)
        {

            // Closes the parent form.

            this.Close();
        }
    }
}
Private Sub ValidateUserEntry5()

    ' Checks the value of the text.

    If ServerName.Text.Length = 0 Then

        ' Initializes variables to pass to the MessageBox.Show method.

        Dim Message As String = "You did not enter a server name. Cancel this operation?"
        Dim Caption As String = "No Server Name Specified"
        Dim Buttons As Integer = MessageBoxButtons.YesNo

        Dim Result As DialogResult

        'Displays a MessageBox using the Question icon and specifying the No button as the default.

        Result = MessageBox.Show(Me, Message, Caption, MessageBoxButtons.YesNo)

        ' Gets the result of the MessageBox display.

        If Result = System.Windows.Forms.DialogResult.Yes Then

            ' Closes the parent form.

            Me.Close()

        End If

    End If

End Sub

注解

Button.DialogResult 属性和 Form.ShowDialog 方法使用此枚举。The Button.DialogResult property and the Form.ShowDialog method use this enumeration.

适用于

另请参阅