CODEWITHSUNDEEP
vb.netdictionarykeynotfoundexception
Kijilas
Kijilas

Reputation: 33

"Key not present in dictionary" when I look at the contents, the key IS there

I'm trying to make a map using "Graphnodes" and coordinates where it would form a grid. I'm doing this first filling every coordinate in with a graphnode, and then going back through and connecting them all up. When I'm going through it tells me that key {2,1} is not in the dictionary but when I check the dictionary, the key and graphnode ARE there.

For i = 1 To MapSize
    For j = 1 To MapSize
        If i = 1 And j = 1 Then
            temp = {i, j}
            nodes.Add(temp, rootNode)
        Else
            roomKeyVal += 1
            temp = {i, j}
            nodes.Add(temp, New graphNode With {.Key = roomKeyVal})
        End If
    Next
Next

For i = 1 To MapSize
    For j = 1 To MapSize
        If i = MapSize Then
            If j <> MapSize Then
                nodes({i, j}).South = nodes({i, j + 1})
                nodes({i, j + 1}).North = nodes({i, j})
            End If
        Else
            If j = MapSize Then
                nodes({i, j}).East = nodes({i + 1, j})
                nodes({i + 1, j}).West = nodes({i, j})
            Else
                nodes({i, j}).East = nodes({i + 1, j})
                nodes({i + 1, j}).West = nodes({i, j})
                nodes({i, j}).South = nodes({i, j + 1})
                nodes({i, j + 1}).North = nodes({i, j})
            End If
        End If
    Next
Next

I need to have an interconnected grid of graphnodes that I can "travel" through but it can't get past connecting the third graphnode.

P.S. if you need help understanding the code, let me know what.

Upvotes: 0

Views: 62

Answers (1)

Kijilas
Kijilas

Reputation: 33

Answered in comments. I changed the key in the dictionary from an array to one string. :)

Upvotes: 0

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