Select Linq Query From String Array

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Hello Every

VB

Dim arrayHex() As String = {"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0A", "0B", "0C", "0D", "0E", "0F", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1A", "1B", "1C", "1D", "1E", "1F"}

VB

Dim str As String  = "02"

I want to find a str position in String array through Linq

Thanks in advance.

Posted 21-Dec-14 18:00pm

Rahul JR

Updated 21-Dec-14 18:03pm

PIEBALDconsult

v2

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PIEBALDconsult 22-Dec-14 0:06am

While I wouldn't use Linq anyway, I really don't see why you wouldn't simply index into the array with that particular data.
E.g. Parse "02" to get 2 and then use arrayHex ( 2 ) -- no searching necessary.

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DamithSL · Accepted Answer · 2014-12-21T19:10:00

VB

Dim arrayHex As String() = {"00", "01", "02", "03", "04", "05", _
	"06", "07", "08", "09", "0A", "0B", _
	"0C", "0D", "0E", "0F", "10", "11", _
	"12", "13", "14", "15", "16", "17", _
	"18", "19", "1A", "1B", "1C", "1D", _
	"1E", "1F"}
Dim test As string = "08"
Dim query = arrayHex.Select(Function(o,i) New With { .Hex = o, .Index = i}) _
                      .FirstOrDefault(Function(item) item.Hex = test)
If query Is Nothing
    Console.WriteLine("Item not found")
Else
    Console.WriteLine("Item found at index {0}", query.Index)
End If

'Item found at index 8

*Karthik Harve* · Accepted Answer · 2014-12-21T19:34:00

Solution 2

Hi

I think no need to LINQ here. you can make use of Array.IndexOf function.

refer Array.IndexOf in VB[^]

Posted 21-Dec-14 19:34pm

Karthik Harve