5.2.1 WPF 通过ItemControl自己做柱状图

1.

最终效果如下图：

1.1 准备数据 ViewModel

  public class PrimaryItemModel
  {
      public double Value { get; set; }
      public string XLabel { get; set; }
  }
 public class MainViewModel
 {
     public ObservableCollection<PrimaryItemModel> PrimaryList { get; set; }

     public MainViewModel()
     {
         Random random = new Random();
         PrimaryList = new ObservableCollection<PrimaryItemModel>();
         for (int i = 0; i < 15; i++)
         {
             PrimaryList.Add(new PrimaryItemModel
             {
                 XLabel = DateTime.Now.ToString("mm:s