C# 列表作为 BeginInvoke 的委托

Question

我已经被这个弄得焦头烂额了，而且我已经在这上面浪费了一天多的时间。我敢肯定这是愚蠢的事情，我只是没有足够的经验，所以非常感谢任何帮助！

事情是这样的...我有一个 National Instruments Graph 对象列表，我必须用新数据刷新这些对象。这有意义吗？它适用于下面的代码，但显然只适用于一个图形。问题是，如何传递图表列表而不是一个图表，然后循环遍历它们以分配数据。先感谢您！

    private void GetAndPlotData(Action<object> actionPlotData)
    {
        for (int ok = 0; ok < 10000000; ok++)
        {
            // Get some data here for every graph
            double[][] testData = new double[2][];
            testData[0] = new double[] { 1, 2, 3, 4 };
            testData[1] = new double[] { 2, 4, 6, 8 };

            // Plot it
            // QUESTION - how to reference passed List of Graphs in the loop to assign data?
            Dispatcher.BeginInvoke(actionPlotData, new object[] { testData });

            Thread.Sleep(10);
        }
    }

    private async void StartTest()
    {
        // QUESTION -  how to pass List Of Graphs as an Action to loop through them later on?
        await Task.Run(() => GetAndPlotData(data => Graphs[0].DataSource = data));
    }

Answer 1

我不确定我是否完全理解这个问题，所以这是第一个建议，以便您可以解释为什么这不是您要找的:)

private void GetAndPlotData(List<Action<object>> actionPlotData)
{
    for (int ok = 0; ok < 10000000; ok++)
    {
        // Get some data
        double[][] testData = new double[2][];
        testData[0] = new double[] { 1, 2, 3, 4 };
        testData[1] = new double[] { 2, 4, 6, 8 };

        // Plot it
        // QUESTION - how to reference passed List of Graphs in the loop?
        for (int i = 0; i < actionPlotData.Count; i++)
        {
            Dispatcher.BeginInvoke(actionPlotData[i], new object[] { testData[i] });
        }

        Thread.Sleep(10);
    }
}

private async void StartTest()
{
    // QUESTION -  how to pass List Of Graphs as an Action to loop through them later on?
    await Task.Run(() => GetAndPlotData( new List<Action<object>> { 
        data => Graphs[0].DataSource = data,
        data2 => Graphs[1].DataSource = data2
        });
}

动态列表的更新版本

    var actions = Graphs.Select(g => (Action<object>)(data => g.DataSource = data)).ToList();

    // QUESTION -  how to pass List Of Graphs as an Action to loop through them later on?
    await Task.Run(() => GetAndPlotData(actions));

C# 列表作为 BeginInvoke 的委托

C# List as delegate for BeginInvoke

c#

delegates

list

begininvoke