【AE+C#初学】地图显示与浏览

[sharealex]

红色是出问题的地方
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace shiyan1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

}

private void loadmap_Click(object sender, EventArgs e)//加载地图文档
{
openFileDialog1.Filter = "地图文档(.mxd)|*.mxd";
openFileDialog1.ShowDialog();
string pFileName = openFileDialog1.FileName;
axMapControl1.LoadMxFile(pFileName);
axMapControl2.LoadMxFile(pFileName);
axMapControl2.Extent = axMapControl2.FullExtent;
axMapControl1.Extent = axMapControl1.FullExtent;
}

private void loadlayer_Click(object sender, EventArgs e)//加载图层文件
{
openFileDialog1.Filter = "图层文件(.lyr)|*.lyr";
openFileDialog1.ShowDialog();
string pFileName = openFileDialog1.FileName;
axMapControl1.AddLayerFromFile(pFileName);
axMapControl1.ActiveView.Refresh();
}


private void magnify_Click(object sender, EventArgs e)//中心放大
{
IEnvelop pEnv;
pEnv = axMapControl1.Extent;
pEnv.Expand(0.5, 0.5, true);
axMapControl1.Extent = pEnv;
}

private void shrink_Click(object sender, EventArgs e)//中心缩小
{

IEnvelop pEnv;
pEnv = axMapControl1.Extent;
pEnv.Expand(2, 2, true);
axMapControl1.Extent = pEnv;
}

private void wander_Click(object sender, EventArgs e)//漫游
{
if (e.button == 1)
{
IEnvelope pEnv;
pEnv = axMapControl1.TrackRectangle();
axMapControl1.Extent = pEnv;
}
else if (e.button == 2)
{ axMapControl1.Pan(); }
}

private void fullscreen_Click(object sender, EventArgs e)//全图显示
{
axMapControl1.Extent = axMapControl1.FullExtent;
}

private void back_Click(object sender, EventArgs e)//视图回退
{
IExtentStack pExt;
pExt = axMapControl1.ActiveView.ExtentStack;
if (pExt.CanUndo())
{ pExt.Undo(); }
}

private void cancelback_Click(object sender, EventArgs e)//取消回退
{
IExtentStack pExt;
pExt = axMapControl1.ActiveView.ExtentStack;
if (pExt.CanRedo())
{ pExt.Redo(); }
}

private void loadshp_Click(object sender, EventArgs e)//加载SHP文件
{
openFileDialog1.Filter = "SHP文件(.shp)|*.shp";
openFileDialog1.ShowDialog();
string pFileName = openFileDialog1.FileName;
if (strFileName == string.Empty)
return;
String pathName = System.IO.Path.GetDirectoryName(strFileName);
string fileName = System.IO.Path.GetFileNameWithoutExtension(strFileName);
axMapControl1.AddShapeFile(pathName, fileName);
}

private void delete_Click(object sender, EventArgs e)//删除指定图层
{

}

private void clear_Click(object sender, EventArgs e)//清除所有图层
{

}


}
}