Updating Locals in TestStand from C#

Question

Hi,
I want to update a variable in TestStand from C#.
I have problems with synchronization, after updating the variable in C# and reading back the variable, it seems to work in Visual Studio.
But the variable is not updated in the GUI of TestStand, only if the test is stopped in TestStand, de variable gets updated.
I have changed TestStandDialog example to show this behavior, attached TestStandDialog1.
If the demo sequence is executed in TestStand, all tests will fail, if the execution is stopped then the local variable strTextBox gets updated!
If you step through the code in Visual Studio it seems to be that it is possible to set a variable and to read back, but the TestStand GUI is not updated.
 string strVarNameTextBox = "Locals.strTextBox"; // Update the TestStand variable 'Locals.strTextBox'm_propertyObject.SetValString(strVarNameTextBox, 0, strTest);
// Readback the content of TestStand variable 'Locals.strTextBox' string strContentVariable = m_propertyObject.GetValString(strVarNameTextBox, 0); // Check the value of the TestStand variable if (strContentVariable != strTest) {MessageBox.Show("Problem detected"); }
Does someone now what the reason is for this behavior?
Best regards
Attachments:
CTestStandDialog1.zip ‏13 KB

Answer 1

Hi Doug,
I am setting the runtime copy of the variables.
If I understand you correctly, there is no additonal action needed for the runtime locals, but my sequence still fails?
I want to change locals from C#, what do you recommend, do I have to use the runtime copy or the edit time copy of the locals?
public class DialogMaster : IDisposable{# region private Membervariablen private PropertyObject m_propertyObject = null;#endregion # region public Constructor public DialogMaster(NationalInstruments.TestStand.Interop.API.SequenceContext sequenceContext) {
m_propertyObject = sequenceContext.AsPropertyObject();
}#endregion# region public Members public void Test(string strTest, out bool errorOccurred, out int errorCode, out String errorMsg) {errorOccurred = false; errorCode = 0;
errorMsg = String.Empty;
try
{string strVarNameTextBox = "Locals.strTextBox"; // Update the TestStand variable 'Locals.strTextBox'm_propertyObject.SetValString(strVarNameTextBox, 0, strTest);
// Readback the content of TestStand variable 'Locals.strTextBox' string strContentVariable = m_propertyObject.GetValString(strVarNameTextBox, 0); // Check the value of the TestStand variable if (strContentVariable != strTest) {MessageBox.Show("Problem detected"); }
}catch (COMException e) {errorOccurred = true; errorMsg = e.Message;
errorCode = e.ErrorCode;
}#endregion#region IDisposable Members public void Dispose() {
}#endregion}Best regards