Hello.
Code is very simplyl, because we are just testing your product before eventually purchase it.

private void button1_Click(object sender, EventArgs e)
{
EasyDAClient client = new EasyDAClient();
object p = new object();
Stopwatch sw = new Stopwatch();

sw.Start();

// Array of VT_I4, reading OK
p = client.ReadItemValue("", "OPCTestLab.OPCAnalyzer.1", "InjectPC.IdraSystem.Data.ExtraParameters1");

// Array of VT_R4, error
p = client.ReadItemValue("", "OPCTestLab.OPCAnalyzer.1", "InjectPC.IdraSystem.Data.ExtraParameters");


MessageBox.Show(sw.ElapsedMilliseconds.ToString());
sw.Reset();
}

Hello. OPCLabs1.* are the traces of my C# app.
It should contain the error I wrote before.
OPCLabs2.txt is the trace of ICONICS OPCDataSpy
The answer is yes, it is written in c# so you can move it.
BR
Davide Gardoni

Hello. We are testing Array Reading from an "Iconics OPC Server Toolkit" compiled OPCServer. Its name is Idra.runtimeDA. Basically reading a VT_I4 array is working using
p = client.ReadItemValue("", "Idra.runtimeDA", "InjectPC.IdraSystem.Data.ExtraParameters1");
where p is an object and ExtraParameters1 is an array of VT_I4
If I try to read
p = client.ReadItemValue("", "Idra.runtimeDA", "InjectPC.IdraSystem.Data.ExtraParameters");
where ExtraParameters is an array of VT_R4
I get this error: InnerException is "Specified array was not of the expected type"
I can read both arrays succesfully with a standalone OPC Client (see attached picture), so I need your help.
Davide Gardoni
Idra srl