SettingsSavedEventArgs.FailedSettingsList 屬性

  • 參考

定義

命名空間:
System.Web.ClientServices.Providers
組件:
System.Web.Extensions.dll

取得 ClientSettingsProvider 無法儲存至伺服器的設定。

public:
 property System::Collections::ObjectModel::ReadOnlyCollection<System::String ^> ^ FailedSettingsList { System::Collections::ObjectModel::ReadOnlyCollection<System::String ^> ^ get(); };
public System.Collections.ObjectModel.ReadOnlyCollection<string> FailedSettingsList { get; }
member this.FailedSettingsList : System.Collections.ObjectModel.ReadOnlyCollection<string>
Public ReadOnly Property FailedSettingsList As ReadOnlyCollection(Of String)

屬性值

ReadOnlyCollection<String>

沒有儲存的設定。

範例

下列範例程式碼示範如何使用這個屬性來顯示未成功儲存的設定清單。

private void AttachSettingsSavedEventHandler()
{
    ((ClientSettingsProvider)Properties.Settings.Default.Providers
        ["System.Web.ClientServices.Providers.ClientSettingsProvider"])
        .SettingsSaved +=
        new EventHandler<SettingsSavedEventArgs>(Form1_SettingsSaved);
}

private void Form1_SettingsSaved(object sender,
    SettingsSavedEventArgs e)
{
    // If any settings were not saved, display a list of them.
    if (e.FailedSettingsList.Count > 0)
    {
        String failedSettings = String.Join(
            Environment.NewLine,
            e.FailedSettingsList.ToArray());

        String message = String.Format("{0}{1}{1}{2}",
            "The following setting(s) were not saved:",
            Environment.NewLine, failedSettings);

        MessageBox.Show(message, "Unable to save settings",
            MessageBoxButtons.OK, MessageBoxIcon.Warning);
    }
}

Private WithEvents settingsProvider As ClientSettingsProvider = My.Settings _
    .Providers("System.Web.ClientServices.Providers.ClientSettingsProvider")

Private Sub Form1_SettingsSaved(ByVal sender As Object, _
    ByVal e As SettingsSavedEventArgs) _
    Handles settingsProvider.SettingsSaved

    ' If any settings were not saved, display a list of them.
    If e.FailedSettingsList.Count > 0 Then

        Dim failedSettings As String = String.Join( _
            Environment.NewLine, e.FailedSettingsList.ToArray())

        Dim message As String = String.Format("{0}{1}{1}{2}", _
            "The following setting(s) were not saved:", _
            Environment.NewLine, failedSettings)

        MessageBox.Show(message, "Unable to save settings", _
            MessageBoxButtons.OK, MessageBoxIcon.Warning)

    End If

End Sub

備註

提供者可能無法儲存設定的其中一個原因是目前的使用者已登出。您可以使用 FailedSettingsList 屬性來判斷是否未成功儲存任何設定。

適用於

另請參閱