.NETCore-winform 判断是否设计模式

public class CheckDesingModel
{
    public static bool IsDesingMode()
    {
        bool returnFlag = false;
#if DEBUG      
        if (LicenseManager.UsageMode == LicenseUsageMode.Designtime)
        {
            returnFlag = true;
        }
        else if (System.Diagnostics.Process.GetCurrentProcess().ProcessName == "devenv")
        {
            returnFlag = true;
        }
#endif
        return returnFlag;
    }
}

 #region
protected bool isDesignTime { get; private set; }
public override ISite Site
{
    get => base.Site;
    set
    {
        base.Site = value;

        this.isDesignTime = true;
    }
}

private bool init = false;
protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);

    if (this.isDesignTime || this.init)
    {
        return;
    }
    this.init = true;

    // Do dangerous stuff here
}

#endregion