共用方式為

UserConsentVerifierAvailability 列舉

  • 參考

定義

命名空間:
Windows.Security.Credentials.UI
編輯

描述驗證裝置檢查的結果，例如指紋讀取器。

public enum class UserConsentVerifierAvailability
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
enum class UserConsentVerifierAvailability
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
public enum UserConsentVerifierAvailability
var value = Windows.Security.Credentials.UI.UserConsentVerifierAvailability.available
Public Enum UserConsentVerifierAvailability
繼承
Enum
UserConsentVerifierAvailability
屬性
ContractVersionAttribute

Windows 需求

裝置系列
Windows 10 (已於 10.0.10240.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v1.0 引進)

欄位

Available 0

驗證裝置可供使用。
DeviceBusy 4

驗證裝置正在執行作業，而且無法使用。
DeviceNotPresent 1

沒有可用的驗證裝置。
DisabledByPolicy 3

組策略已停用驗證裝置。
NotConfiguredForUser 2

此使用者未設定驗證裝置。

範例

下列範例顯示檢查目前使用者是否支持驗證裝置的方法，並傳回根據UserConsentVerifierAvailability值描述結果的訊息。

public async System.Threading.Tasks.Task<string> CheckDeviceAvailability()
{
    string returnMessage;

    // Check the availability of device authentication.
    var ucvAvailability = await Windows.Security.Credentials.UI.UserConsentVerifier.CheckAvailabilityAsync();

    switch (ucvAvailability)
    {
        case Windows.Security.Credentials.UI.UserConsentVerifierAvailability.Available:
            returnMessage = "Authentication device is available.";
            break;
        case Windows.Security.Credentials.UI.UserConsentVerifierAvailability.DeviceBusy:
            returnMessage = "Authentication device is busy.";
            break;
        case Windows.Security.Credentials.UI.UserConsentVerifierAvailability.DeviceNotPresent:
            returnMessage = "No authentication device found.";
            break;
        case Windows.Security.Credentials.UI.UserConsentVerifierAvailability.DisabledByPolicy:
            returnMessage = "Authentication device verification is disabled by policy.";
            break;
        case Windows.Security.Credentials.UI.UserConsentVerifierAvailability.NotConfiguredForUser:
            returnMessage = "Please go to Account Settings to set up a PIN or other advanced authentication.";
            break;
        default:
            returnMessage = "Authentication device is currently unavailable.";
            break;
    }

    return returnMessage;
}

備註

您可以使用 CheckAvailabilityAsync 方法來判斷目前電腦是否支援指紋驗證。

適用於

另請參閱