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我一直在尝试在 axmapcontrol 上绘制地图并使用相同的 ITable 在 IDataGraphwindow2 中创建散点图。不幸的是，图表显示正确的数据，但图表上的点击事件没有工作。左键单击显示内存错误，右键单击显示禁用菜单。对于左键单击，我认为 DataGraphTUI.dll 负责。当我们加载 IDataGraphWindow2 时，我们不会初始化它，因为它可能会出错。

请在下面找到代码。

IDataGraphWindow2 pDGWin;
IDataGraphT dataGraphT = new DataGraphTClass();
IWorkspace shapefileWorkspace = null;
IWorkspaceFactory shapefileWorkspaceFactory = new ShapefileWorkspaceFactoryClass();
shapefileWorkspace = shapefileWorkspaceFactory.OpenFromFile("C:\\abc.shp "), 0);
featureWorkspace = (IFeatureWorkspace)shapefileWorkspace;

featureLayer.FeatureClass = featureWorkspace.OpenFeatureClass(System.IO.Path.GetFileNameWithoutExtension("c:\\abc.shp"));

ITable gobjJoinedTable = (ITable)featureLayer.FeatureClass;

LoadaxMap(); /// a method to load up the axmapcontrol

dataGraphT.UseSelectedSet = true;
dataGraphT.HighlightSelection = true;
dataGraphT.GeneralProperties.Title = "Scatter Graph";
dataGraphT.LegendProperties.Visible = false;
dataGraphT.get_AxisProperties(0).Title = "Y Axis";
dataGraphT.get_AxisProperties(0).Logarithmic = false;
dataGraphT.get_AxisProperties(2).Title = "X Axis";
dataGraphT.get_AxisProperties(2).Logarithmic = false;

ISeriesProperties seriesProps = dataGraphT.AddSeries("scatter_plot");
seriesProps.SourceData = axMap.get_Layer(0) as ITable; // axMap is the map control. Itable direct binding also works here

seriesProps.SetField(0, "abc.shp-fieldname"); // you may add any fieldname
seriesProps.SetField(1, "abc.shp-fieldname");

dataGraphT.Update(null);
dataGraphT.UseSelectedSet = true;
dataGraphT.HighlightSelection = false;
dataGraphT.Update(null);
pDGWin = new DataGraphWindowClass();
pDGWin.DataGraphBase = dataGraphT;
pDGWin.PutPosition(546, 155, 1040, 540);
pDGWin.Show(true);

内存错误是模块“DatagraphTUI.dll”中地址 0F4E358B 的访问冲突。读取地址 00000000

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1 回答 1

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显示图表时遇到了同样的问题。通过使用这行代码修复它：

graphWindow.Application = ArcMap.Application

它所需要的只是对 ArcMap 应用程序的引用。

于 2011-09-30T20:57:02.050 回答