Search context fields include propertyNames, scores and
highlights. If ReturnSearchContext is set true, then the cypher_clause
is ignored and exactly the tuple
{ id(doc), [propertyName1, ..., propertyNameN], [score1,..., scoreN], [highlight1, ..., highlightN]}
is returned in the result set for each document. The default value is false.
//On the QueuedTask...
//and assuming you have established a connection to a knowledge graph
//...
//Construct a KG search filter. Search text uses Apache Lucene Query Parser
//syntax - https://lucene.apache.org/core/2_9_4/queryparsersyntax.html
var kg_sf = new KnowledgeGraphSearchFilter()
{
SearchTarget = KnowledgeGraphNamedTypeCategory.Entity,
SearchText = "Acme Electric Co.",
ReturnSearchContext = true,
MaxRowCount = 10 //Default is 100 if not specified
};
//submit the search - returns a KnowledgeGraphCursor
using (var kg_rc = kg.SubmitSearch(kg_sf))
{
//wait for rows to be returned from the server
//note the "await"...
while (await kg_rc.WaitForRowsAsync())
{
//Rows have been retrieved - process this "batch"...
while (kg_rc.MoveNext())
{
//Get the current KnowledgeGraphRow
using (var graph_row = kg_rc.Current)
{
//Graph row is an array, process all returned values...
var val_count = (int)graph_row.GetCount();
for (int i = 0; i < val_count; i++)
{
var retval = graph_row[i];
//Process row value (note: recursive)
//See "Process a KnowledgeGraphRow Value" snippet
ProcessKnowledgeGraphRowValue(retval);
}
}
}
}//WaitForRowsAsync
}//SubmitSearch