代码如下
ThemeCustom tc = new ThemeCustom();
tc.MarkerSizeExpression = "10";
tc.MarkerSymbolIDExpression = "style";
tc.LineColorExpression = "color";
m_pointLayer = m_mapControl.Map.Layers.Add(pointDataset, tc, true);
放大到一定比例就不显示了,缩小就出来了,没设置可视比例,环境是oralce11g64位,object . net 9.10,把点数据集复制到udb里一切正常,复制到oralce就出现这个问题,我QQ: 342937372