CODEWITHSUNDEEP
c#neo4jneo4jclient
ChristyEvans
ChristyEvans

Reputation: 21

Return all nodes from Neo4j database in c#

I am still very new to programming, but what I am trying to reach for now is a piece of code that will show me all of my nodes in my Visual studio. I connected my c# to my database, but what I can't see why I can't show back my nodes. The .Results is giving an error and I can't see why. My code is looking like this so far. Could someone explain what and more importantly why this piece is not working? 

class DatabaseConnection
{
    GraphClient dbclient;

    public DatabaseConnection(){
        dbclient = new GraphClient(new Uri("http://localhost:7474/db/data"));
        dbclient.Connect();

        dbclient.Cypher
        .Match("(type:PhonePart)")
        .Return(type => type.As<PhoneItems>())
        .Results
    }

}
public class PhoneItems
{
    public string PhonePart { get; set; }  
}

Upvotes: 2

Views: 748

Answers (1)

Tatham Oddie
Tatham Oddie

Reputation: 4290

Your issue here is actually with C# syntax, not Neo4j at all.

This error is because you've referenced a property, Results, but not told the compiler what to do with it. It's like typing 3 in your code and then just leaving it hanging: do you want it assigned to a variable, printed out, or something else?

All you need to do is assign this to something:

dbclient.Cypher
    .Match("(type:PhonePart)")
    .Return(type => type.As<PhoneItems>())
    .Results

Like so:

var phoneItems = dbclient.Cypher
    .Match("(type:PhonePart)")
    .Return(type => type.As<PhoneItems>())
    .Results;

Then, your code will compile.

Next, you want to do something with these phone numbers, maybe like so:

foreach (var phone in phoneItems)
{
    Console.WriteLine(phone.PhonePart);
}

Hope that helps!

Upvotes: 4

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