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VB.NET - Extract Pairs out of a string (JSON)

Posted on 2016-10-21
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Last Modified: 2016-10-24
I use VB.Net and want to extract The Keypair values and put them into a class with the same variable (names) and values.

When I do a API call the outcome is shown as below.
How can I extract the KeyPair values? Like "Username":  "<text>"?

{
"License":
{
"LicenseKey": "Known",
"LicenseId": "****",
"Username": "++",
"Password": "*",
"ProductCode": "*",
"ProductName": "",
"Quantity": 1,
"PurchaseType": "Renew",
"CreatedDate": "28-07-2015",
"ExpirationDate": "27-07-2017",
"CustomerName": "*",
"CustomerCompany": "",
"CustomerEmail": "a@b.com",
"DiscountCode": 0,
"Status": "Active",
"BundleProductCode": "0",
"BundleProductName": "Advanced",
"BundleQuantity": 0,
"ELAPassword": "",
"CountryId": 60
},
"Result": true,
"Messages": []
}
0
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Question by:jjvalstar
4 Comments
 
LVL 50

Expert Comment

by:Ryan Chong
ID: 41853679
you can create your custom class and then deserialize to get the values you want.

you can look for samples at Json.NET to do this

for more info
http://www.newtonsoft.com/json
0
 
LVL 35

Expert Comment

by:YZlat
ID: 41853752
Import Newtonsoft.Json and try

Dim list As List(Of String) = Newtonsoft.Json.JsonConvert.DeserializeObject(Of List(Of String))(strJSON)

For Each item As String In list
	Console.WriteLine(item)
Next

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LVL 33

Accepted Solution

by:
it_saige earned 500 total points
ID: 41854005
In other words:
Module Module1
	Dim data = "{""License"":{""LicenseKey"": ""Known"", ""LicenseId"": ""****"", ""Username"": ""++"", ""Password"": ""*"", ""ProductCode"": ""*"", ""ProductName"": """", ""Quantity"": 1, ""PurchaseType"": ""Renew"", ""CreatedDate"": ""28-07-2015"", ""ExpirationDate"": ""27-07-2017"", ""CustomerName"": ""*"", ""CustomerCompany"": """", ""CustomerEmail"": ""a@b.com"", ""DiscountCode"": 0, ""Status"": ""Active"", ""BundleProductCode"": ""0"", ""BundleProductName"": ""Advanced"", ""BundleQuantity"": 0, ""ELAPassword"": """", ""CountryId"": 60 }, ""Result"": true, ""Messages"": [] }"

	Sub Main()
		Dim [response] = Newtonsoft.Json.JsonConvert.DeserializeObject(Of Response)(data)
		Console.WriteLine("UserName: {0}", [response].License.Username)
		Console.ReadLine()
	End Sub
End Module

Class Response
	Public Property [License]() As License
	Public Property Result() As Boolean
	Public Property Messages() As List(Of String)
End Class

Class License
	Public Property LicenseKey() As String
	Public Property LicenseID() As String
	Public Property Username() As String
	Public Property Password() As String
	Public Property ProductCode() As String
	Public Property ProductName() As String
	Public Property Quantity() As Integer
	Public Property PurchaseType() As String
	Public Property CreatedDate() As String
	Public Property ExpirationDate() As String
	Public Property CustomerName() As String
	Public Property CustomerCompany() As String
	Public Property CustomerEmail() As String
	Public Property DiscountCode() As Integer
	Public Property Status() As String
	Public Property BundleProductCode() As String
	Public Property BundleProductName() As String
	Public Property BundleQuantity() As Integer
	Public Property ELAPassword() As String
	Public Property CountryId() As Integer
End Class

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Produces the following output -Capture.JPG-saige-
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Author Closing Comment

by:jjvalstar
ID: 41857997
This was the solution.
Many thanks.
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