打开要素层的属性表

      前不久在网站上看了其它同行用VB写的关于打开要素层属性表的代码，我把它改了一下用C#写了出来，希望对大家的学习用能有所帮助！

private void OpenAttribute_Load(object sender, System.EventArgs e)
        {
            //得到要素层的接口
            IFeatureLayer pFeatLyr=(IFeatureLayer)axMapControl1.get_Layer(0);
            //查询ILayerFields接口
            ILayerFields pFeatLyrFields=(ILayerFields)pFeatLyr;
            IFeatureClass pFeatCls=pFeatLyr.FeatureClass;
            
            DataSet myDataset=new DataSet("Test");
            DataTable pTable=new DataTable(pFeatLyr.Name);
            for(int n=0;n<pFeatLyrFields.FieldCount-1;n++)
            {
                DataColumn pTableCol=new DataColumn(pFeatLyrFields.get_Field(n).Name);
                pTable.Columns.Add(pTableCol);
                pTableCol=null;
            }
            IFeatureCursor pFeatCursor=pFeatCls.Search(null,false);
            IFeature pFeat=pFeatCursor.NextFeature();
            while (pFeat!=null)
            {
                DataRow pTableRow=pTable.NewRow();
                for(int i=0;i<pFeatLyrFields.FieldCount-1;i++)
                {
                    if(pFeatLyrFields.FindField(pFeatCls.ShapeFieldName)==i)
                    {
                        pTableRow[i]=pFeatCls.ShapeType.ToString();
                    }
                    else
                    {
                        pTableRow[i]=pFeat.get_Value(i).ToString();
                    }
                }
                pTable.Rows.Add(pTableRow);
                pFeat=pFeatCursor.NextFeature();
            }
            myDataset.Tables.Add(pTable);
            dataGrid1.DataSource=myDataset;
            dataGrid1.DataMember=pFeatLyr.Name;
        }

        //选择和编辑属性表
        private void dataGrid1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            DataGrid myGrid=(DataGrid)sender;
            DataGrid.HitTestInfo myHitTestInfo=myGrid.HitTest(e.X,e.Y);
            string message = "You clicked ";

            switch (myHitTestInfo.Type) 
            {
                case System.Windows.Forms.DataGrid.HitTestType.None :
                    message += "the background.";
                    break;
                case System.Windows.Forms.DataGrid.HitTestType.Cell :
                    message += "cell at row " + myHitTestInfo.Row + ", col " + myHitTestInfo.Column;
                    break;
                case System.Windows.Forms.DataGrid.HitTestType.ColumnHeader :
                    message += "the column header for column " + myHitTestInfo.Column;
                    break;
                case System.Windows.Forms.DataGrid.HitTestType.RowHeader :
                    message += "the row header for row " + myHitTestInfo.Row;
                    break;
                case System.Windows.Forms.DataGrid.HitTestType.ColumnResize :
                    message += "the column resizer for column " + myHitTestInfo.Column;
                    break;
                case System.Windows.Forms.DataGrid.HitTestType.RowResize :
                    message += "the row resizer for row " + myHitTestInfo.Row;
                    break;
                case System.Windows.Forms.DataGrid.HitTestType.Caption :
                    message += "the caption";
                    break;
                case System.Windows.Forms.DataGrid.HitTestType.ParentRows :
                    message += "the parent row";
                    break;
            }

            Console.WriteLine(message);

        }