neo4j - "Cannot convert lambda expression to type 'string' because it is not a delegate type" Neo4jClient Query -

i trying put clause in neo4j cypher query return nodes, query im trying perform:

start n = node:node_auto_index(name = "contact details") match (n)--(x) x.type = "version" return x; 

now c# method looks this(using neo4jclient):

public ienumerable<node<versionnode>> graphgetallversionnodes(string nodename)         {             clientconnection = graphoperations.graphgetconnection();              ienumerable<node<versionnode>> queryresult = null;                  var query = clientconnection                     .cypher                     .start(new                     {                         n = node.byindexlookup("node_auto_index", "name", nodename)                     })                     .match("(n)--(x)")                     .where((versionnode x) => x.type = "version")                     .return<node<versionnode>>("(x)")                     .results;                 queryresult = query.tolist();              return queryresult;         } 

now there error on clause saying:

cannot convert lambda expression type 'string' because not delegate type 

what doing wrong here?

thanks

if that's verbatim copy-paste, i'm guessing issue wrote:

.where((versionnode x) => x.type = "version") 

when need write:

.where((versionnode x) => x.type == "version") 

ps. what's point of ienumerable<node<versionnode>> queryresult = null; instead of var queryresult =? never assign in other path, it's waste of code , signature maintain.