async private void btnImport_Click(object sender, EventArgs e)
{
List <ExplorerDialogFilter> filters = new List <ExplorerDialogFilter>();
filters.Add(new OpenDataFilter());
filters.Add(new OpenSpatialReferenceFilter());
ExplorerDialog dlg = new ExplorerDialog("Import Spatial Reference", filters, true);
dlg.MulitSelection = false;
if (dlg.ShowDialog() == DialogResult.OK && dlg.ExplorerObjects.Count == 1)
{
IExplorerObject exObject = dlg.ExplorerObjects[0];
var instatnce = await exObject?.GetInstanceAsync();
if (instatnce is IFeatureDataset)
{
_sRef = await((IFeatureDataset)instatnce).GetSpatialReference();
}
else if (instatnce is IRasterDataset)
{
_sRef = await((IRasterDataset)instatnce).GetSpatialReference();
}
else if (instatnce is IFeatureClass)
{
_sRef = ((IFeatureClass)instatnce).SpatialReference;
}
else if (instatnce is IRasterClass)
{
_sRef = ((IRasterClass)instatnce).SpatialReference;
}
else if (instatnce is IWebServiceClass)
{
_sRef = ((IWebServiceClass)instatnce).SpatialReference;
}
else if (instatnce is ISpatialReference)
{
_sRef = instatnce as ISpatialReference;
}
else
{
MessageBox.Show("Can't import spatial reference from data object...");
return;
}
MakeGUI();
}
}
async private void btnGetGridDataset_Click(object sender, EventArgs e)
{
List <ExplorerDialogFilter> filters = new List <ExplorerDialogFilter>();
filters.Add(new OpenRasterDatasetFiler());
ExplorerDialog dlg = new ExplorerDialog("Image/Grid Dataset", filters, true);
dlg.MulitSelection = false;
if (dlg.ShowDialog() == DialogResult.OK)
{
foreach (IExplorerObject exObject in dlg.ExplorerObjects)
{
var instance = await exObject?.GetInstanceAsync();
if (instance == null)
{
continue;
}
_ds = instance as IRasterDataset;
if (_ds != null)
{
txtGridDataset.Text = _ds.DatasetName;
IEnvelope env = null;
foreach (IDatasetElement element in await _ds.Elements())
{
if (element != null && element.Class is IFeatureClass)
{
if (env == null)
{
env = new Envelope(((IFeatureClass)element.Class).Envelope);
}
else
{
env.Union(((IFeatureClass)element.Class).Envelope);
}
}
}
spatialIndexControl1.Extent = env;
}
else
{
txtGridDataset.Text = String.Empty;
}
}
}
}