Unable-to-cast-boolean-to-integer-in-an-enum-based-configuration-parameter

2024-04-18T18:20:52Z - 2024-04-18T18:20:52Z ago

Unable to cast boolean to integer in an enum-based configuration parameter

In one of my custom C# adapters, I have a configuration parameter added like below

CODE:

// Add other string and int parameters
...

// Add enum parameter
Parameters.Add(new Parameter("TOTP Hash Mode", typeof(TotpHashMode))
         {
            Hint = "Hash mode for your TOTP key. Default is SHA1. Check <a href="https://smartapi.angelbroking.com/enable-totp" target="_blank">https://smartapi.angelbroking.com/enable-totp</a> to get the TOTP key"
         });

// Add other string and int parameters
...

In a method called "CreateParameters" of the same object, I am calling Parameters.Clone(). I am getting an exception on this "Clone" method call. Below are the exception details

Call Stack

CODE:
Unable to cast object of type 'System.Boolean' to type 'System.Int32'.
   at WealthLab.Core.Parameter.get_AsInt()
   at WealthLab.Core.Parameter.Persist(Tokenizer tok)
   at WealthLab.Core.ParameterList.Persist()
   at WealthLab.Core.ParameterList.Clone()
   at CW.WealthLab.WLConfigurationStore.CreateParameters()
   at CW.WealthLab.HistoricDataProvider.GenerateParameters()

If I comment out the enum-based parameter, the exception doesn't occur.

271

Solved

3 Replies

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ravikatha8

2024-04-18T18:28:01Z - 2024-04-18T18:28:01Z ago

Screenshot of the parameter just after adding it to the Parameters collection

Glitch8

( 12.10% )

2024-04-18T18:38:48Z - 2024-04-18T18:38:48Z ago

You haven't provided enough code to diagnose. Can you try to replicate the issue in a Strategy Initialize method? I have no trouble cloning a Parameter based on an enum:

CODE:

        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
         Parameter p = new Parameter("Test", typeof(ParameterType));
         p = p.Clone();
         WriteToDebugLog(p.Type.ToString());
        }

Best Answer

ravikatha8

2024-04-19T14:17:10Z - 2024-04-19T14:17:10Z ago

The issue was due to bad logic (I was creating duplicate parameter objects). Clone is working fine.

Thanks!

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