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我想將點添加到我的線圖中,但它不會在視覺上更改。第一次點擊按鈕時,它增加了兩點。其他每次點擊都無所作爲,爲什麼不呢?如何更新我的圖表以使其顯示最近添加的點
C#代碼:
List<KeyValuePair<string, int>> valueList = new List<KeyValuePair<string, int>>();
private void Button_Click_3(object sender, System.Windows.RoutedEventArgs e)
{
valueList.Add(new KeyValuePair<string, int>(DateTime.Now.ToString("T"), 130));
System.Threading.Thread.Sleep(1000);
valueList.Add(new KeyValuePair<string, int>(DateTime.Now.ToString("T"), 140));
lineSeries1.ItemsSource = valueList;
}
XAML:
<chartingToolkit:Chart Canvas.Top="80" Canvas.Left="10" Name="mcChart" Width="400" Height="250" Background="LightSteelBlue">
<chartingToolkit:Chart.Series>
<chartingToolkit:LineSeries x:Name="lineSeries1" Title="Test" IndependentValueBinding="{Binding Path=Key}" DependentValueBinding="{Binding Path=Value}">
</chartingToolkit:LineSeries>
</chartingToolkit:Chart.Series>
</chartingToolkit:Chart>
下面是結果的圖片:如上在同一按鈕上並沒有做任何事情,第二次點擊說道。