1          /// <summary>
 2         /// 矢量数据的读取
 3         /// </summary>
 4         /// <param name="sender"></param>
 5         /// <param name="e"></param>
 6         private void toolStripButton_ReadShpDataInfo_Click(object sender, EventArgs e)
 7         {
 8             //1.获取要读取的数据
 9             ILayer layer = mapControlMain.FocusMap.GetLayer(0);
10             IFeatureClass featureClass = (layer as IFeatureLayer).FeatureClass;
11
12             //2.要素数据集信息的读取
13             string fileName = featureClass.GetName();
14             long featureCount = featureClass.GetFeatureCount();
15             string spatialReference = featureClass.GetFeatureDataset().SpatialReference.Name;// featureClass.SpatialReference.ExportToWkt();
16             string message = string.Format("数据名称：{0};\r\n要素的数量：{1};\r\n数据空间参考：{2}", fileName, featureCount, spatialReference);
17             MessageBox.Show(message, string.Format("{0}数据的信息：", fileName));
18
19             //要素的信息
20             IFeature feature = featureClass.GetFeature(0);
21             IFields fields = featureClass.GetFields();
22             int fieldIndex = fields.GetFieldIndex("NAME");
23             IField field = fields.GetField(fieldIndex);
24             string fieldValue = field.Name;
25             string fieldInfo = "";
26             while (feature != null)
27             {
28                 fieldInfo += fieldValue + "字段值为:\r\n" + feature.GetValue(fieldValue) + "\r\n";
29                 MessageBox.Show(fieldInfo, "要素的信息");
30                 feature = null;//数据量太大,示例只读取一条要素的信息
31                 //feature = featureClass.GetNextFeature();
32             }
33         }