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  9. C# Read Array of strings or numbers

C# Read Array of strings or numbers

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15 May 2019 05:34 #7365 by jomyver
Replied by jomyver on topic C# Read Array of strings or numbers
Check this detailed tutorial on... C# Array

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14 Jun 2013 18:09 #1339 by support
Replied by support on topic C# Read Array of strings or numbers
What makes you think that anything is wrong? What is the output of your program? If it only prints out the type name of the array, then it is because the .ToString() method does behave this way on arrays - it does not return the string of individual elements.

Generally, to work with readings that are arrays, you usually need to type-cast them to the type they are, such as

var myArray = (string[])spectra;
Debug.WriteLine(myArray[0]);

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13 Jun 2013 01:55 #1335 by Ben_FA
Replied by Ben_FA on topic C# Read Array of strings or numbers
Hi,

You are only getting a single value back because spectra object hasn't been declared are an array.

I've attached a VB.Net example it shouldn't be difficult to convert this to C#

Console.WriteLine("Reading array value...")
Dim value As Object() = client.ReadItemValue("", "OPCLabs.KitServer.2",
"Simulation.Register_ArrayOfI2")
Console.WriteLine(value(0))
Console.WriteLine(value(1))
Console.WriteLine(value(2))
Console.WriteLine("Press Enter to continue...")

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12 Jun 2013 13:40 #1334 by trobalo
C# Read Array of strings or numbers was created by trobalo
Hello,

I'm trying to read an array of strings or number using C#, but at this moment I'm only successful read single values.
var client = new EasyDAClient();
 
object spectra = client.ReadItemValue("127.0.0.1", "Matrikon.OPC.Simulation.1", "Random.ArrayOfString");
 
System.Diagnostics.Debug.WriteLine(spectra.ToString());

Who can help me with this?

Thanks in advance!

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  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Reading, Writing, Subscriptions, Property Access
  9. C# Read Array of strings or numbers
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