计算过去几周回头客DAX

如何解决计算过去几周回头客DAX

我在这个问题上搜索了很多，并尝试了几件事。我想弄清我们上周有多少回头客，并将其与本周进行比较。到目前为止，星期一直在运行。

我尝试过的最新代码是：

Lastweeksales = CALCULATE([Total returning customers],FILTER(ALL(orders),orders[Weeknumber] = SELECTEDVALUE(orders[Weeknumber]) -1))

“回头客总数”只是所有回头客的总和=“是”。

我相信我要做的是对每个星期的数字进行“是”的总和，但是我不太清楚。

解决方法

我解决了这个问题。

    public partial class CustomDashControl : ContentView
    {
        static int totalCount;
        static Color barColor;

        private static ObservableCollection<CustomControlData> tempData;

        public static ObservableCollection<CustomControlData> TempData
        {
            get { return tempData; }
            set
            {
                tempData = value;
                customDashControl.OnPropertyChanged("TempData");
            }
        }

        static CustomDashControl customDashControl;

        public CustomDashControl()
        {
            try
            {
                InitializeComponent();
                customDashControl = this;
            }
            catch (Exception ex)
            {
                BaseViewModel.HandleException(ex);
            }
        }

        #region Bindable Properties

        public static readonly BindableProperty ItemsSourceProperty =
            BindableProperty.Create("ItemsSource",typeof(ObservableCollection<CustomControlData>),typeof(CustomDashControl),new    
                                     ObservableCollection<CustomControlData>(),BindingMode.Default,null,OnItemsSourceChanged);

        private static void OnItemsSourceChanged(BindableObject bindable,object oldValue,object newValue)
        {
            if (oldValue != newValue)
            {
                (bindable as CustomDashControl).OnPropertyChanged("ItemsSource");

                TempData = (ObservableCollection<CustomControlData>)newValue;

                UpdateBar();
            }
        }

        private static void UpdateBar()
        {
            try
            {
                if (TempData != null && TempData.Count > 0)
                {
                    var control = customDashControl.progressbar;

                    control.ColumnDefinitions.Clear();
                    control.Children.Clear();

                    //Working
                    for (int i = 0,j = 0; i < TempData.Count; i++,j++)
                    {
                        control.ColumnDefinitions.Add(new ColumnDefinition() { Width = GridLength.Auto });

                        var tempBox = new BoxView() { Color = TempData[i].BarColor,WidthRequest = TempData[i].BarWidth };

                        control.Children.Add(tempBox,j,0);

                        j++;

                        control.ColumnDefinitions.Add(new ColumnDefinition() { Width = 1 });

                        control.Children.Add(new BoxView() { Color = Color.White,WidthRequest = 1 },(j),0);
                    }

                    Console.WriteLine(control.Children);
                }
            }
            catch (Exception ex)
            {
                BaseViewModel.HandleException(ex);
            }
        }

        public ObservableCollection<CustomControlData> ItemsSource
        {
            get { return (ObservableCollection<CustomControlData>)GetValue(ItemsSourceProperty); }
            set { SetValue(ItemsSourceProperty,value); }
        }


        public static readonly BindableProperty TotalCountProperty = BindableProperty.Create(propertyName: "TotalCount",returnType: typeof(int),declaringType: typeof(CustomDashControl),defaultValue: 0,propertyChanged: propertyChanges1);

        private static void propertyChanges1(BindableObject bindable,object newValue)
        {
            if (oldValue != newValue)
            {
                var control = bindable as CustomDashControl;
                totalCount = (int)newValue;

                if (totalCount > 0)
                {
                    (customDashControl.BindingContext as CustomDashControlViewModel).totalCount = totalCount;
                }
            }
        }

        public int TotalCount
        {
            get { return (int)GetValue(TotalCountProperty); }
            set { SetValue(TotalCountProperty,value); }
        }

        #endregion
    }