Get value from JArray item with has inconsistent values - asp.net

Question

I'm reading a JSON file from an external partner which is not totally consistent (and they are not changing it anytime soon).
I want to check the value of the field bathroom and store that in an integer. So here's a mapping of the potential values there are and what I would like to get:
"" = 0
= 0 (here no value is present)
2 = 2
"2" = 2
But whatever I try (see below) I get the error:
Input string was not in a correct format.
Dim json as string = "[{""bathrooms"": """"}, {""bathrooms"": }, {""bathrooms"": 2},{""bathrooms"": ""1""}]"
Dim iBathrooms As Integer
Dim jsonArray As Newtonsoft.Json.Linq.JArray = JArray.Parse(json)
For Each item In jsonArray
iBathrooms= If(item.Value(Of Integer?)("bathrooms"), 0)
iBathrooms = If(CType(item("bathrooms"), Integer?), 0)
Int32.TryParse(item("bathrooms").Value(Of Integer).ToString, iBathrooms)
Next
I already checked here: Get value from JToken that may not exist (best practices)

Answer 1

If the problem with the JSON is consistently that it is missing the value, you could insert, say, an empty string:
Dim json As String = "[{""bathrooms"": """"}, {""bathrooms"": }, {""bathrooms"": 2},{""bathrooms"": ""1""}]"
Dim re = New Text.RegularExpressions.Regex(":\s*}")
Dim json2 = re.Replace(json, ": """"}")
Console.WriteLine(json2)
Outputs:
[{"bathrooms": ""}, {"bathrooms": ""}, {"bathrooms": 2},{"bathrooms": "1"}]
which is valid JSON.
Then you could check if the value can be parsed as an integer:
Dim json As String = "[{""bathrooms"": """"}, {""bathrooms"": """"}, {""bathrooms"": 2},{""bathrooms"": ""1""}]"
Dim re = New Text.RegularExpressions.Regex(":\s*}")
json = re.Replace(json, ": """"}")
Dim nBathrooms As Integer
Dim jsonArray As Newtonsoft.Json.Linq.JArray = JArray.Parse(json)
For Each item In jsonArray
Dim q = item("bathrooms")
If q IsNot Nothing AndAlso Integer.TryParse(q.Value(Of Object).ToString(), nBathrooms) Then
Console.WriteLine(nBathrooms)
Else
Console.WriteLine("Not specified.")
End If
Next