public QueryConditionViewModel CloneDeep()
{
var viewMode = new QueryConditionViewModel()
{
columnName = this.columnName,
matchValue = this.matchValue,
layer = this.layer,
featureLayers = this.featureLayers,
selectedColumnName = this.selectedColumnName
};
if (queryOperator != null)
{
viewMode.queryOperator = queryOperators.FirstOrDefault(op => op.QueryOperaterType == queryOperator.QueryOperaterType);
}
return(viewMode);
}
public QueryConditionWindow(QueryConditionViewModel viewModel)
{
if (viewModel == null)
{
throw new ArgumentNullException();
}
ApplyWindowStyle(this);
InitializeComponent();
if (GisEditor.ActiveMap != null)
{
queryCondition = viewModel.CloneDeep();
if (viewModel.Layer != null)
{
layersComboBox.IsEnabled = false;
}
DataContext = QueryCondition;
}
Messenger.Default.Register <bool>(this, queryCondition, (message) =>
{
if (IsActive)
{
DialogResult = message;
if (message)
{
viewModel.Layer = queryCondition.Layer;
viewModel.QueryOperator = queryCondition.QueryOperator;
viewModel.ColumnName = queryCondition.ColumnName;
viewModel.MatchValue = queryCondition.MatchValue;
}
Close();
}
});
Closing += (s, e) =>
{
Messenger.Default.Unregister(this);
};
}
public static IEnumerable <Feature> FilterFeatures(QueryConditionViewModel condition)
{
IEnumerable <Feature> filteredFeatures = new Collection <Feature>();
bool isContinue = MessageBoxHelper.ShowWarningMessageIfSoManyCount(condition.Layer);
if (!isContinue)
{
return(new Collection <Feature>());
}
condition.Layer.SafeProcess(() =>
{
var allFeatures = condition.Layer.QueryTools.GetAllFeatures(condition.Layer.GetDistinctColumnNames());
switch (condition.QueryOperator.QueryOperaterType)
{
case QueryOperaterType.Equal:
filteredFeatures = allFeatures.Where(feature => GetFeatureValue(feature, condition.ColumnName).Equals(condition.MatchValue, StringComparison.InvariantCultureIgnoreCase));
break;
case QueryOperaterType.Contains:
filteredFeatures = allFeatures.Where(feature => GetFeatureValue(feature, condition.ColumnName).IndexOf(condition.MatchValue, StringComparison.InvariantCultureIgnoreCase) != -1);
break;
case QueryOperaterType.StartsWith:
filteredFeatures = allFeatures.Where(feature => GetFeatureValue(feature, condition.ColumnName).StartsWith(condition.MatchValue, StringComparison.InvariantCultureIgnoreCase));
break;
case QueryOperaterType.EndsWith:
filteredFeatures = allFeatures.Where(feature => GetFeatureValue(feature, condition.ColumnName).EndsWith(condition.MatchValue, StringComparison.InvariantCultureIgnoreCase));
break;
case QueryOperaterType.DoesNotEqual:
filteredFeatures = allFeatures.Where(feature => !GetFeatureValue(feature, condition.ColumnName).Equals(condition.MatchValue, StringComparison.InvariantCultureIgnoreCase));
break;
case QueryOperaterType.DoesNotContain:
filteredFeatures = allFeatures.Where(feature => GetFeatureValue(feature, condition.ColumnName).IndexOf(condition.MatchValue, StringComparison.InvariantCultureIgnoreCase) == -1);
break;
case QueryOperaterType.GreaterThan:
filteredFeatures = allFeatures.Where(feature => CompareStringAsNumber(GetFeatureValue(feature, condition.ColumnName), condition.MatchValue, QueryOperaterType.GreaterThan));
break;
case QueryOperaterType.GreaterThanOrEqualTo:
filteredFeatures = allFeatures.Where(feature => CompareStringAsNumber(GetFeatureValue(feature, condition.ColumnName), condition.MatchValue, QueryOperaterType.GreaterThanOrEqualTo));
break;
case QueryOperaterType.LessThan:
filteredFeatures = allFeatures.Where(feature => CompareStringAsNumber(GetFeatureValue(feature, condition.ColumnName), condition.MatchValue, QueryOperaterType.LessThan));
break;
case QueryOperaterType.LessThanOrEqualTo:
filteredFeatures = allFeatures.Where(feature => CompareStringAsNumber(GetFeatureValue(feature, condition.ColumnName), condition.MatchValue, QueryOperaterType.LessThanOrEqualTo));
break;
default:
break;
}
});
Feature[] results = filteredFeatures.ToArray();
for (int i = 0; i < results.Length; i++)
{
results[i].Tag = condition.Layer;
}
return(results);
}
