小编ama*_*nth的帖子

我想用动态图表制作ZedGraph: 如何使ZedGraph轴反转和时间轴？谢谢

UPD 1:我必须尝试使用​​以下代码:

GraphPane myPane = zg1.GraphPane;
            myPane.YAxis.Type = AxisType.Date;
            myPane.YAxis.Scale.MajorUnit = DateUnit.Minute;
            myPane.YAxis.Scale.MinorUnit = DateUnit.Second;
            myPane.XAxis.IsVisible = false;
            myPane.X2Axis.IsVisible = true;
            myPane.X2Axis.MajorGrid.IsVisible = true;
            myPane.X2Axis.Scale.Min = 0;
            myPane.X2Axis.Scale.Max = 600;
            myPane.YAxis.Scale.Format = "HH:mm:ss";
            PointPairList list = new PointPairList();
            PointPairList list2 = new PointPairList();
            for (int i = 0; i < 36; i++)
            {
                double x = (double)i * 5.0;
                double y = (double)new XDate(DateTime.Now.AddSeconds(i));
                list.Add(y, x);
                //list2.Add(y2, x);
                listBox1.Items.Add("x = " + x + " y = …

在VS 2010 SP 1中，我为.Net Framework 2创建了WinForms应用程序。我尝试从资源中获取图标并将其分配给表单图标：

this.Icon = global::tester.Properties.Resources.icon_gray;

图标资源icon_gray.ico已从VS设计器添加到我的开发人员PC Windows 7 x86（带有.NET Framework 3.5 SP1和.NET 4）中的Resources.resx中。

但是在以下错误 Windows XP SP 3 with only .NET Framework 2 SP 2

错误：

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ComponentModel.Win32Exception: ???????? ????? ???????
   at System.Drawing.Icon.Initialize(Int32 width, Int32 height)
   at System.Drawing.Icon..ctor(SerializationInfo info, StreamingContext context)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle._SerializationInvoke(Object target, SignatureStruct& declaringTypeSig, SerializationInfo info, StreamingContext context)
   at System.Reflection.RuntimeConstructorInfo.SerializationInvoke(Object target, SerializationInfo info, StreamingContext …

我有 SQL Server 表：

CREATE TABLE [dbo].[Table1](
    [rec_id] [int] IDENTITY(1,1) NOT NULL,
    [id] [int] NOT NULL,
    [date] [datetime] NOT NULL,
    [ps] [varchar](200) NULL
) ON [PRIMARY]

我通过代码获取数据：

status = SQLExecDirect(statement, (SQLWCHAR*)TEXT("SELECT * FROM [DBNAME].[dbo].[Table1]"), SQL_NTS);
cout << "SQLExecDirect returned " << status << "\r\n";
    if (status == SQL_SUCCESS_WITH_INFO || status == SQL_SUCCESS)
    {
        int rec_id;
        int id;
        char date[64];
        char ps[201] = { 0 };
        while (SQLFetch(statement) == SQL_SUCCESS)
        {
            SQLGetData(statement, 1, SQL_C_ULONG, &rec_id, 0, NULL);
            SQLGetData(statement, 2, SQL_C_ULONG, &id, …

我用OPC服务器编写XML AJAX服务。基于此示例的XML AJAX服务。我使用单一属性进行服务：

[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]

下一步，我创建类析构函数：

~BoilerService()
{
    try
    {
        ReadTimer.Dispose();
        group.ReadCompleted -= new ReadCompleteEventHandler(group_ReadCompleted);
        group.Remove(true);
        server.Disconnect();
    }
    catch (Exception e)
    {
        System.IO.StreamWriter sw = new System.IO.StreamWriter("log.txt", true);
        sw.WriteLine(DateTime.Now.ToString() +e.Message+ " "+ e.Source+" "+e.StackTrace +  " destructor called.");
        sw.Close();
        sw.Dispose();
    }
}

但是，当我在VS中重建解决方案时（在应用程序路径中替换了文件），我得到了wp3.exe未处理的异常错误窗口（Windows 7）。在Windows事件日志中，我看到以下文字：

Exception: System.Runtime.InteropServices.InvalidComObjectException

Message: COM object that has been separated from its underlying RCW cannot be used.

StackTrace:    at System.StubHelpers.StubHelpers.GetCOMIPFromRCW(Object objSrc, IntPtr pCPCMD, Boolean& pfNeedsRelease)
   at OPC.Data.Interface.IOPCServer.RemoveGroup(Int32 hServerGroup, Boolean bForce)
   at OPC.Data.OpcGroup.Remove(Boolean bForce)
   at …

我使用 Microsoft InteractiveDataDisplay.WPF（以前的 DynamicDataDisplay）来可视化实时数据（大约 2-3 秒）。此代码 xaml.cs：

public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            double[] y = new double[200];
            double[] x = new double[200];
            for (int i = 0; i < 200; i++)
            {
                y[i] = 3.1415 * i / (y.Length - 1);
                x[i] = DateTime.Now.AddMinutes(-i).ToOADate();
            }
            linegraph.Plot(x, y);
        }
    }

使用这个 xaml：

<d3:Chart Name="plotter">
            <d3:Chart.Title>
                <TextBlock HorizontalAlignment="Center" FontSize="18" Margin="0,5,0,5">chart sample</TextBlock>                
            </d3:Chart.Title>
            <d3:LineGraph x:Name="linegraph" Description="Simple linegraph" Stroke="Blue" StrokeThickness="3">
            </d3:LineGraph>
        </d3:Chart>

给出这个观点： 但我想要以下自定义图表：

任何想法如何做到这一点？谢谢！

更新 1（使用 …