Generic Type Convert Function

It's simple method can be use as extension method for conversion types :

public static TK ConvertTo<TK>(this object value,bool isThrowException = false, 
                   TK defaultValue = default(TK))
{
  try
  {
    return (TK)Convert.ChangeType(value, typeof(TK));
  }
  catch (InvalidCastException ex)
  {
     if (isThrowException)
      {
        throw ex;
     }
  return defaultValue;
}

Using example:

string value = "15";
//Method will convert string to int. 
//In case val is not numeric will throw exception.
int result = value.ConvertTo();
//In case val is not numeric will return type default value.
int result1 = value.ConvertTo(false);
//In case val is not numeric will return your defined value (5).
int result2 = value.ConvertTo(false,5); 

Enjoy!