private void selectFeatures()
{
IQueryByLayer _qrBl = new QueryByLayerClass();
int method=cbxMethod.SelectedIndex;
switch (method)
{
case 0:
_method = esriLayerSelectionMethod.esriLayerSelectIntersect;
break;
case 1:
_method = esriLayerSelectionMethod.esriLayerSelectContainedBy;
break;
case 2:
_method = esriLayerSelectionMethod.esriLayerSelectContains;
break;
default:
_method = esriLayerSelectionMethod.esriLayerSelectIntersect;
break;
}
int selectLayer = cbxSelectLayer.SelectedIndex;
_byLayer = _mapControl.get_Layer(selectLayer);
int resultType=cbxResultType.SelectedIndex;
switch (resultType)
{
case 0:
_resultType = esriSelectionResultEnum.esriSelectionResultNew;
break;
case 1:
_resultType = esriSelectionResultEnum.esriSelectionResultAdd;
break;
case 2:
_resultType = esriSelectionResultEnum.esriSelectionResultSubtract;
break;
case 3:
_resultType = esriSelectionResultEnum.esriSelectionResultAnd;
break;
case 4:
_resultType = esriSelectionResultEnum.esriSelectionResultXOR;
break;
default:
_resultType = esriSelectionResultEnum.esriSelectionResultNew;
break;
}
if (chkUseSelected.CheckState == CheckState.Unchecked)
{
_useSelected = false;
}
else
{
_useSelected = true;
}
bool re = false;
try
{
re = double.TryParse(txtBuffer.Text, out _buffer);
}
catch { }
if (!re)
{
_buffer = 0;
}
int unit = cbxUnit.SelectedIndex;
switch (unit)
{
case 0:
_bufferUnit = esriUnits.esriCentimeters;
break;
case 1:
_bufferUnit = esriUnits.esriDecimeters;
break;
case 2:
_bufferUnit = esriUnits.esriMeters;
break;
case 3:
_bufferUnit = esriUnits.esriKilometers;
break;
default:
_bufferUnit = esriUnits.esriMeters;
break;
}
_qrBl.ByLayer = (IFeatureLayer)_byLayer;
_qrBl.LayerSelectionMethod = _method;
_qrBl.ResultType = _resultType;
_qrBl.UseSelectedFeatures = _useSelected;
_qrBl.BufferDistance = _buffer;
_qrBl.BufferUnits = _bufferUnit;
foreach (object o in lstInputLayer.SelectedItems)
{
int index = lstInputLayer.Items.IndexOf(o);
_fromLayer = _mapControl.get_Layer(index);
_qrBl.FromLayer = (IFeatureLayer)_fromLayer;
ISelectionSet selectionSet;
IFeatureSelection featureSelection;
try
{
selectionSet = _qrBl.Select();
featureSelection = (IFeatureSelection)_fromLayer;
featureSelection.SelectionSet = selectionSet;
//MessageBox.Show("line 255 count=" + selectionSet.Count);
}
catch(Exception ex)
{ //MessageBox.Show("line 257 SelectByLocation, ex=" + ex);
continue; }
}
_mapControl.ActiveView.Refresh();
}
void ISpatialAlgrorithm.SetMethod(esriLayerSelectionMethod method)
{
this._queryByLayer.LayerSelectionMethod = method;
}
