private bool SelectFeatures()
{
try
{
string strTemp = (string)this.cboFields.SelectedItem;
string strFieldAliasName = strTemp;//.Substring(1, strTemp.Length - 2);
string strFieldName = m_FieldTable[strFieldAliasName].ToString();
IFeatureClass pFtCls = m_FeatureLayer.FeatureClass;
int nFieldIndex = pFtCls.Fields.FindField(strFieldName);
string strWhereClause = "";
if (pFtCls.Fields.get_Field(nFieldIndex).Type == esriFieldType.esriFieldTypeString)
{
strWhereClause = strFieldName + " = '" + (string)this.cboFieldsValue.SelectedItem + "'";
}
else
{
strWhereClause = strFieldName + " =" + (string)this.cboFieldsValue.SelectedItem;
}
if (m_FeatureLayer == null)
{
return(false);
}
IQueryFilter _queryFilter;
IFeatureSelection _featureSelection;
_featureSelection = m_FeatureLayer as IFeatureSelection;
_queryFilter = new QueryFilterClass();
_queryFilter.SubFields = "*";
_queryFilter.WhereClause = strWhereClause;
m_Map.ClearSelection();
_featureSelection.SelectFeatures(_queryFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
if (_featureSelection.SelectionSet.Count == 0)
{
XtraMessageBox.Show("没有符合查询条件的要素！", "提示", MessageBoxButtons.OK);
return(false);
}
if (m_FeatureLayer.Visible == false)
{
m_FeatureLayer.Visible = true;
object obj = MapOperAPI.GetLayerParent((IBasicMap)m_Map, (ILayer)m_FeatureLayer);
if (obj is ICompositeLayer)
{
ILayer pParentLayer = (ILayer)obj;
pParentLayer.Visible = true;
}
}
m_activeView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
catch (Exception ex)
{
XtraMessageBox.Show("没有匹配的查询结果，请重新设置查询条件！", "提示");
return(false);
}
return(true);
}
