Refactoring With Reflection

Question

I have several methods that populate a SQLCommand objects parameter collection from an object like this

if (!String.IsNullOrEmpty(SearchObj.FirstName))
{
    command.AddParameter(Fields.FirstName, SearchObj.FirstName);
}
if (!String.IsNullOrEmpty(SearchObj.LastName))
{
    command.AddParameter(Fields.LastName, SearchObj.LastName);
}
if (!String.IsNullOrEmpty(SearchObj.EmailAddress))
{
    command.AddParameter(Fields.EmailAddress, SearchObj.EmailAddress);
}
if (SearchObj.JobRoleId > -1)
{
    command.AddParameter(Fields.JobRoleId, SearchObj.JobRoleId);
}

This can get messy as the object can have up to about 20 properties. Is there anyway using reflection to loop through each of these properties and add them all to the Sqlcommand objects Parameter collection? Bearing in mind it treats strings different to ints in that it only adds a string if its not null or empty and it only adds an int if its greater than -1.

I've not used much reflection before, so a point in the right direction would be great.

Thanks

Answer 1

Try using the methods listed here: http://stackoverflow.com/questions/737151/how-to-get-the-list-of-properties-of-class

and then loop over them adding them as you see fit.