/// <summary>
/// 打开LDB数据库
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_OpenLDB_Click(object sender, EventArgs e)
{
//打开窗口
OpenFileDialog openDia = new OpenFileDialog();
openDia.Filter = "*.ldb | *.ldb";
if (openDia.ShowDialog() != DialogResult.OK)
{
return;
}
_glbControl.Globe.Layers.RemoveAll();
TreeView.Nodes[0].Nodes.Clear();
//创建数据库链接
GSODataSourceCnn dataSourceCnn = new GSODataSourceCnn();
//设置数据库链接为LDB
dataSourceCnn.Type = EnumDataSourceType.LDB;
//绑定数据库文件
dataSourceCnn.Database = openDia.FileName;
//打开数据库链接
_ldbDataSource = _glbControl.Globe.DataManager.OpenDataSource(dataSourceCnn);
btn_EditLayer.Enabled = true;
//遍历LDB数据库中的所有图层
for (int i = 0; i < _ldbDataSource.DatasetCount; i++)
{
//获得LDB数据库中的图层数据
var featuredata = _ldbDataSource[i];
//将图层数据加载到Globe控件中
_glbControl.Globe.Layers.Add(featuredata);
}
this.Text = this.Text.Split('_')[0] + "_" + openDia.FileName;
//如果数据库中图层数据不为空
if (_ldbDataSource.DatasetCount > 0)
{
//当前编辑图层赋值
_featureLayer = _glbControl.Globe.Layers[0];
btn_EditFeature.Enabled = true;
this.Text = this.Text + "_" + _featureLayer.Caption;
}
else
{
btn_EditFeature.Enabled = false;
}
}
/// <summary>
/// 创建ldb数据库
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_CreateLDB_Click(object sender, EventArgs e)
{
//保存文件窗口
SaveFileDialog dialog = new SaveFileDialog();
dialog.Filter = "*.ldb | *.ldb";
dialog.OverwritePrompt = false;
if (dialog.ShowDialog() != DialogResult.OK)
{
return;
}
if (System.IO.File.Exists(dialog.FileName))
{
MessageBox.Show("文件已存在，数据文件不可覆盖。");
return;
}
//创建数据库连接
GSODataSourceCnn dataSourceCnn = new GSODataSourceCnn();
//设置连接类型为LDB
dataSourceCnn.Type = EnumDataSourceType.LDB;
//绑定ldb文件
dataSourceCnn.Database = dialog.FileName;
//创建ldb数据库
_ldbDataSource = _glbControl.Globe.DataManager.CreateDataSource(dataSourceCnn);
//窗口名称修改为当前创建的数据库
this.Text = this.Text.Split('_')[0] + "_" + dialog.FileName;
btn_EditLayer.Enabled = true;
_glbControl.Globe.Layers.RemoveAll();
TreeView.Nodes[0].Nodes.Clear();
_featureLayer = null;
btn_EditFeature.Enabled = false;
}
