Question

我一直在使用perfmon创建一个winform应用程序。我发现电池状态不起作用，因为它是Windows管理的一部分。所以我决定走wmi路线。

所以我的问题是当我将电池状态放在标签中时如下所示：

private void BatteryStatus()
    {
        System.Management.ManagementClass wmi  = new System.Management.ManagementClass("Win32_Battery");
        var allBatteries = wmi.GetInstances();

        foreach (var battery in allBatteries)
        {
            int estimatedChargeRemaining = Convert.ToInt32(battery["EstimatedChargeRemaining"]);
            if (estimatedChargeRemaining == 100)
            {
                label13.Text = "Remaining:" + "  " + estimatedChargeRemaining + "  " + "%";
            }
        }



    }

剩余电量完全显示。我的问题是，有没有办法可以只用一个if statement将电池状态从100调到1

或者我正在做的方式我还需要再做99次if statements？

这是我自定义构建的性能监视器的一部分。如果perfmon允许计数器会更容易。这是我能想到获得电池统计数据的唯一方法，例如：

Charge Rate
Discharge Rate
Remaining Capacity
Voltage

我总是使用电池状态标签if statements。在我再做99次if statements之前，我想确定没有更简单的方法吗？

***********更新************ 我想到了。感谢帮助的人的帮助。

Answer 1

我想你要做的就是：

private void BatteryStatus()
{
    System.Management.ManagementClass wmi  = new System.Management.ManagementClass("Win32_Battery");
    var allBatteries = wmi.GetInstances();

    foreach (var battery in allBatteries)
    {
        int estimatedChargeRemaining = Convert.ToInt32(battery["EstimatedChargeRemaining"]);           
        label13.Text = "Remaining:" + "  " + estimatedChargeRemaining + "  " + "%";
    }
}

无需和if声明，无论百分比是多少，标签都会更新。

在问题的第二部分，您说要显示“电池状态”，然后您可以像这样使用if：

  private void BatteryStatus()
 {
    System.Management.ManagementClass wmi  = new System.Management.ManagementClass("Win32_Battery");
    var allBatteries = wmi.GetInstances();

    foreach (var battery in allBatteries)
    {
        int estimatedChargeRemaining = Convert.ToInt32(battery["EstimatedChargeRemaining"]); 
        string Status = "";    
        if(estimatedChargeRemaining < 15) Status = "Critical";
        else  if(estimatedChargeRemaining < 35) Status = "Low";
        else  if(estimatedChargeRemaining < 60) Status = "Regular";
        else  if(estimatedChargeRemaining < 90) Status = "High";
        else Status = "Complete";

        label13.Text = "Remaining:" + "  " + estimatedChargeRemaining + "  " + "% | Status: " + Status;
    }
}

Answer 2

 private void BatteryStatus()
    {
        System.Management.ManagementClass wmi  = new System.Management.ManagementClass("Win32_Battery");
        var allBatteries = wmi.GetInstances();

        foreach (var battery in allBatteries)
        {
            int estimatedChargeRemaining = Convert.ToInt32(battery["EstimatedChargeRemaining"]);
            label13.Text = "Remaining" + "  " + estimatedChargeRemaining.ToString() + "  " + "%";
            if (estimatedChargeRemaining < 15 )
            {
                label13.ForeColor = Color.Red;
            }
        }



    }

winforms中的电池状态

2 个答案: