private void New_Click(object sender, EventArgs e)
{
//询问是否保存当前地图
DialogResult res = MessageBox.Show("是否保存当前地图?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (res == DialogResult.Yes)
{
//如果要保存，调用另存为对话框
ICommand command = new ControlsSaveAsDocCommandClass();
if (m_mapControl != null)
{
command.OnCreate(m_controlsSynchronizer.MapControl.Object);
}
else
{
command.OnCreate(m_controlsSynchronizer.PageLayoutControl.Object);
}
command.OnClick();
}
//创建新的地图实例
IMap map = new MapClass();
map.Name = "Map";
m_controlsSynchronizer.MapControl.DocumentFilename = string.Empty;
//更新新建地图实例的共享地图文档
m_controlsSynchronizer.ReplaceMap(map);
}
/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
// TODO: Add OpenNewMapDocument.OnClick implementation
OpenFileDialog dlg = new OpenFileDialog();
dlg.Filter = "Map Documents (*.mxd)|*.mxd";
dlg.Multiselect = false;
dlg.Title = "Open Map Document";
if (dlg.ShowDialog() == DialogResult.OK)
{
string docName = dlg.FileName;
IMapDocument mapDoc = new MapDocumentClass();
if (mapDoc.get_IsPresent(docName) && !mapDoc.get_IsPasswordProtected(docName))
{
mapDoc.Open(docName, string.Empty);
IMap map = mapDoc.get_Map(0);
m_controlsSynchronizer.ReplaceMap(map);
mapDoc.Close();
}
}
}