c# - 调用 PowerStatus.BatteryChargeStatus.ToString() 有时会返回 0

Question

所以我的方法如下:

PowerStatus powerStatus = SystemInformation.PowerStatus;

if (powerStatus.BatteryChargeStatus != BatteryChargeStatus.NoSystemBattery)
{
    var batteryStatus = powerStatus.BatteryChargeStatus.ToString()
}

从我的测试系统中，我得到了各种各样的结果，例如:

High,

Low,

Charging,

High Charging

Low, Charging

Low, Critical

这是一个奇怪的...0？

我想它与 BatteryChargeStatus Enum 有关

Answer 1

他们错过了一个。来自底层文档 SYSTEM_POWER_STATUS操作系统声明:

The value is zero if the battery is not being charged and the battery capacity is between low and high

所以自己编一个吧，比如:

    var status = SystemInformation.PowerStatus.BatteryChargeStatus;
    if (status != BatteryChargeStatus.NoSystemBattery) {
        var batteryStatus = status == 0 ? "Not charging" : status.ToString();
        // etc...
    }