private void btnImport_Click(object sender, EventArgs e)
{
List <ExplorerDialogFilter> filters = new List <ExplorerDialogFilter>();
filters.Add(new OpenDataFilter());
ExplorerDialog dlg = new ExplorerDialog("Import Extent", filters, true);
dlg.MulitSelection = true;
ISpatialReference sRef = SpatialReference.FromID("epsg:" + cmbEpsgs.SelectedItem.ToString());
if (dlg.ShowDialog() == DialogResult.OK)
{
IEnvelope bounds = null;
foreach (IExplorerObject exObject in dlg.ExplorerObjects)
{
if (exObject == null || exObject.Object == null)
{
continue;
}
IEnvelope objEnvelope = null;
if (exObject.Object is IDataset)
{
foreach (IDatasetElement element in ((IDataset)exObject.Object).Elements)
{
if (element == null)
{
continue;
}
objEnvelope = ClassEnvelope(element.Class, sRef);
}
}
else
{
objEnvelope = ClassEnvelope(exObject.Object as IClass, sRef);
}
if (objEnvelope != null)
{
if (bounds == null)
{
bounds = new Envelope(objEnvelope);
}
else
{
bounds.Union(objEnvelope);
}
}
}
if (bounds != null)
{
this.CurrentEpsgExtent = bounds;
}
}
if (_metadata != null && cmbEpsgs.SelectedIndex >= 0)
{
_metadata.SetEPSGEnvelope(_currentEpsg, this.CurrentEpsgExtent);
}
}