DialogResult 枚举
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
指定标识符以指示对话框的返回值。
public enum class DialogResult
[System.Runtime.InteropServices.ComVisible(true)]
public enum DialogResult
public enum DialogResult
[<System.Runtime.InteropServices.ComVisible(true)>]
type DialogResult =
type DialogResult =
Public Enum DialogResult
- 继承
- 属性
字段
Abort | 3 | 对话框的返回值是 |
Cancel | 2 | 对话框的返回值是 |
Continue | 11 | 对话框返回值是“继续” (通常从标记为“继续”) 的按钮发送。 |
Ignore | 5 | 对话框的返回值是 |
No | 7 | 对话框的返回值是 |
None | 0 | 从对话框返回了 |
OK | 1 | 对话框的返回值是 |
Retry | 4 | 对话框的返回值是 |
TryAgain | 10 | 对话框返回值是“重试” (通常从标记为“重试”的按钮发送) 。 |
Yes | 6 | 对话框的返回值是 |
示例
下面的代码示例演示如何显示 MessageBox 此重载 Show支持的选项。 验证字符串变量是否 ServerName
为空后,该示例会显示一个 MessageBox,为用户提供取消操作的选项。 Show如果方法的返回值计算结果为“是”,则显示该方法MessageBox的窗体已关闭。
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
属性 Button.DialogResult 和 Form.ShowDialog 方法使用此枚举。