我正在开发WPF应用程序中的图表。但它没有显示图表。 Chart Plot区域是空白的，而我可以根据我在代码中执行的valueList.add的数量来查看图例的数量。
<chartingToolkit:Chart HorizontalAlignment="Stretch"
x:Name="MyPie"
Margin="10"
Title="Total Voting Percentage"
VerticalAlignment="Stretch">
<chartingToolkit:PieSeries ItemsSource="{Binding}"
DependentValuePath="Total Participants"
IndependentValuePath="Total Voted" />
</chartingToolkit:Chart>
public partial class TotalVoting : Window
{
int TotalParticipant;
int TotalVoted;
public TotalVoting()
{
InitializeComponent();
TotalParticipant = int.Parse(da[0].ToString()); //data reaches here
TotalVoted = int.Parse(da1[0].ToString()) / 2; //data reaches here
ObservableCollection<Writer> Team = new ObservableCollection<Writer>
{
new Writer("Total Participants", TotalParticipant),
new Writer("Participants Voted", TotalVoted),
new Writer("Total Participants", TotalParticipant),
new Writer("Participants Voted", TotalVoted)
};
MyPie.DataContext = Team;
}
}
public class Writer
{
public Writer() { }
public Writer(string writerName, int numOfTypes)
{
Name = writerName;
Types = numOfTypes;
}
public string Name { get; set; }
public int Types { get; set; }
}
当我运行代码时，我可以看到数字1,2,3的图例数...所以当前代码显示从1到4.但是我的图表控件上没有显示任何图表。任何线索，以便我可以完成它。
编辑：已对代码进行了更改..但仍然是相同的结果
public void GenerateChart()
{
List<KeyValuePair<string, double>> valueList = new List<KeyValuePair<string, double>>();
valueList.Add(new KeyValuePair<string, double>("Apple", 101));
valueList.Add(new KeyValuePair<string, double>("Banana", 201));
valueList.Add(new KeyValuePair<string, double>("Cake", 20));
valueList.Add(new KeyValuePair<string, double>("Others", 200));
pieChart.Title = "Top Products";
pieChart.DataContext = valueList;
}
添加时间valueList.Add。我可以在图表上使用相同数量的图例但没有图表:(