Is there anyway to iterate through a Dapper DynamicParameters object?

Question

I need to make a generic logger to record certain insert/update statements so that my testers can verify the data being inserted is correct.

My first thought was tha

Answer 1

Just in case,

var pmaster = new Dapper.DynamicParameters();                            
SortedList l = new SortedList();
l.Add("param1", object1);
l.Add("param2", object2);
l.Add("param3", object3);
l.Add("param4", object4);

foreach(var key in l.Keys)
{
  var val = l[key];
  pmaster.Add(key.ToString(), val);
}

Worked for me.

Answer 2

    string ParametersToString(DynamicParameters parameters)
    {
        var result = new StringBuilder();

        if (parameters != null)
        {
            var firstParam = true;
            var parametersLookup = (SqlMapper.IParameterLookup)parameters;
            foreach (var paramName in parameters.ParameterNames)
            {
                if (!firstParam)
                {
                    result.Append(", ");
                }
                firstParam = false;

                result.Append('@');
                result.Append(paramName);
                result.Append(" = ");
                try
                {
                    var value = parametersLookup[paramName];// parameters.Get<dynamic>(paramName);
                    result.Append((value != null) ? value.ToString() : "{null}");
                }
                catch
                {
                    result.Append("unknown");
                }
            }

        }
        return result.ToString();
    }

Answer 3

One line with Linq:

string.Join(", ", from pn in sprocParams.ParameterNames select string.Format("@{0}={1}", pn, (sprocParams as SqlMapper.IParameterLookup)[pn]))

I'm using that to log with log4net:

Log.InfoFormat("Exec {0} {1}", storedProc, string.Join(", ", from pn in sprocParams.ParameterNames select string.Format("@{0}={1}", pn, (sprocParams as SqlMapper.IParameterLookup)[pn])));

Answer 4

Try:

            var sb = new StringBuilder();
            foreach (var name in p.ParameterNames)
            {
                var pValue = p.Get<dynamic>(name);
                sb.AppendFormat("{0}={1}\n", name, pValue.ToString());
            }