MapXtreme 2005查找图元方法,web的

先添加一个TextBox和 DropDownList控件
复制内容到剪贴板
代码:
  private static string _findLayerName = "GOVP_point";
    private static string _findColumnName = "NAME";
    protected void Button2_Click(object sender, EventArgs e)
    {
MapInfo.Mapping.Map map=MapInfo.Engine.Session.Current.MapFactory[MapControl1.MapAlias];
SearchInfo si = MapInfo.Data.SearchInfoFactory.SearchWhere(_findColumnName + " like '%" + TextBox1.Text + "%'");
IResultSetFeatureCollection ifs = MapInfo.Engine.Session.Current.Catalog.Search(_findLayerName, si);
MapInfo.Engine.Session.Current.Selections.DefaultSelection.Clear();
if (ifs.Count <= 0)
{
    //lbSearch.Text = "Cannot find the point";
}
else
{
    //高亮显示
    MapInfo.Engine.Session.Current.Selections.DefaultSelection.Add(ifs);
    //lbSearch.Text = "";
    if (ifs.Count == 1)
    {
        map.Center = new DPoint(ifs[0].Geometry.Centroid.x, ifs[0].Geometry.Centroid.y);
        MapInfo.Geometry.Distance d = new MapInfo.Geometry.Distance(0.5, map.Zoom.Unit);
    }
    else
    {
        map.SetView(ifs.Envelope);
    }
    //设置高亮显示的样式
    //((SimpleInterior)MapInfo.Engine.Session.Current.Selections.DefaultSelection.Style.AreaStyle.Interior).BackColor = System.Drawing.Color.Red;
    //((SimpleInterior)MapInfo.Engine.Session.Current.Selections.DefaultSelection.Style.AreaStyle.Interior).ForeColor = System.Drawing.Color.Green;
    //输出查询信息
    DropDownList4.Items.Clear();
    foreach (Feature feature in ifs)
    {
        DropDownList4.Items.Add(feature["name"].ToString());
    }
}
    }