打开.mxd文档

System.Windows.Forms.OpenFileDialog openFileDialog;
openFileDialog = new OpenFileDialog();
//初始显示目录
openFileDialog.InitialDirectory = @”C:\”;
//下次打开对话框是否定位到上次打开的目录
openFileDialog.RestoreDirectory = true;
//过滤文件类型
openFileDialog.Filter = “map documents(*.mxd)|*.mxd|所有文件 (*.*)|*.*”;
//FilterIndex 与 Filter 关联对应，用于设置默认显示的文件类型
openFileDialog.FilterIndex = 1;//默认是1，则默认显示的文件类型为*.mxd；如果设置为2，则默认显示的文件类型是*.*
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
if (System.IO.File.Exists(Application.StartupPath + openFileDialog.FileName))
{
m_pApp.LoadMxd(Application.StartupPath + openFileDialog.FileName, “”, 0);

}
}
转载自：https://blog.csdn.net/qq_17792347/article/details/84692829