CqlQueryExtensionsCountTSource Method |
Returns the number of rows matching the query.
To execute this CqlScalar use Execute() method.
Namespace: Cassandra.Data.Linq
Assembly: Cassandra (in Cassandra.dll) Version: 3.11.0
SyntaxC#
public static CqlScalar<long> Count<TSource>( this CqlQuery<TSource> source )
Parameters
- source
- Type: Cassandra.Data.LinqCqlQueryTSource
The CqlQuery<TSource> to return the first element of.
Type Parameters
- TSource
- The type of the elements of source.
Return Value
Type: CqlScalarInt64A single result: the number of rows matching the query.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type CqlQueryTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).See Also