public ODataVirtualDataSourceDataProviderWorker(ODataVirtualDataSourceDataProviderWorkerSettings settings)
: base(settings)
{
_baseUri = settings.BaseUri;
_entitySet = settings.EntitySet;
_sortDescriptions = settings.SortDescriptions;
_filterExpressions = settings.FilterExpressions;
_desiredPropeties = settings.PropertiesRequested;
_groupDescriptions = settings.GroupDescriptions;
if (_groupDescriptions != null && _groupDescriptions.Count > 0)
{
_sortDescriptions = new SortDescriptionCollection();
foreach (var sd in settings.SortDescriptions)
{
_sortDescriptions.Add(sd);
}
for (var i = 0; i < _groupDescriptions.Count; i++)
{
_sortDescriptions.Insert(i, _groupDescriptions[i]);
}
}
_isAggregationSupportedByServer = settings.IsAggregationSupportedByServer;
Task.Factory.StartNew(() => DoWork(), TaskCreationOptions.LongRunning);
}
public SQLiteVirtualDataSourceDataProviderWorker(SQLiteVirtualDataSourceDataProviderWorkerSettings settings)
: base(settings)
{
_tableExpression = settings.TableExpression;
_projectionType = settings.ProjectionType;
_selectExpressionOverride = settings.SelectExpressionOverride;
_connection = settings.Connection;
_sortDescriptions = settings.SortDescriptions;
_groupDescriptions = settings.GroupDescriptions;
_groupingField = settings.GroupingColumn;
if (_groupDescriptions != null && _groupDescriptions.Count > 0)
{
_sortDescriptions = new SortDescriptionCollection();
foreach (var sd in settings.SortDescriptions)
{
_sortDescriptions.Add(sd);
}
for (var i = 0; i < _groupDescriptions.Count; i++)
{
_sortDescriptions.Insert(i, _groupDescriptions[i]);
}
}
_filterExpressions = settings.FilterExpressions;
_desiredPropeties = settings.PropertiesRequested;
_propertyMappings = ResolvePropertyMappings();
ActualSchema = ResolveSchema();
if (_groupDescriptions != null && _groupDescriptions.Count > 0)
{
_groupInformation = ResolveGroupInformation();
}
Task.Factory.StartNew(() => DoWork(), TaskCreationOptions.LongRunning);
}
public ODataVirtualDataSourceDataProvider()
{
_sortDescriptions = new SortDescriptionCollection();
_sortDescriptions.CollectionChanged += SortDescriptions_CollectionChanged;
_filterExpressions = new FilterExpressionCollection();
_filterExpressions.CollectionChanged += FilterExpressions_CollectionChanged;
}
public ODataVirtualDataSourceDataProvider()
{
_sortDescriptions = new SortDescriptionCollection();
_groupDescriptions = new SortDescriptionCollection();
_sortDescriptions.CollectionChanged += SortDescriptions_CollectionChanged;
_groupDescriptions.CollectionChanged += GroupDescriptions_CollectionChanged;
_filterExpressions = new FilterExpressionCollection();
_filterExpressions.CollectionChanged += FilterExpressions_CollectionChanged;
}
public void Refresh(bool savePreviousFilter = true)
{
if (bRefresh != null)
{
bRefresh.IsEnabled = false;
}
FilterExpressionCollection filterExpressions = null;
if (_source != null)
{
//Сохраняем прежний фильтр
if (savePreviousFilter)
{
filterExpressions = _source.FilterExpressions;
}
DataSource = null;
_source.Dispose();
}
if (BeforeRefresh != null)
{
BeforeRefresh(this, EventArgs.Empty);
}
//Dispatcher.BeginInvoke((Action) (() =>
//{
RecreateSource();
if (savePreviousFilter && _source != null && _source.FilterExpressions != null && filterExpressions != null)
{
//Фосстанавливаем прежний фильтр
foreach (var fe in filterExpressions)
{
_source.FilterExpressions.Add(fe);
}
}
//}));
}
public ODataVirtualDataSourceDataProviderWorker(ODataVirtualDataSourceDataProviderWorkerSettings settings)
:base(settings)
{
_baseUri = settings.BaseUri;
_entitySet = settings.EntitySet;
_sortDescriptions = settings.SortDescriptions;
_filterExpressions = settings.FilterExpressions;
_desiredPropeties = settings.PropertiesRequested;
Task.Factory.StartNew(() => DoWork(), TaskCreationOptions.LongRunning);
}
