DialogResult 枚举

定义

命名空间:
System.Windows.Forms
程序集:
System.Windows.Forms.dll

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
Object
ValueType
Enum
DialogResult
属性
ComVisibleAttribute

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 Nothing。Nothing 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MessageBox使用的此Show重载支持的选项来显示。The 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为空的情况下, 该示例将MessageBox显示, 并向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. 如果该Show方法的返回值的计算结果为 "是", 则MessageBox关闭显示的窗体。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Form.ShowDialog和方法使用此枚举。The Button.DialogResult property and the Form.ShowDialog method use this enumeration.

适用于

另请参阅