public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (Expression == null)
return value;
if (parser == null)
{
parser = new LambdaParser(Expression, true);
//set a default
parser.Params = new LambdaParameter[]
{
new LambdaParameter { ParamType = targetType, ParamName = "param" }
};
//parse the expression
func = parser.ParseExpression().Compile();
}
//if the user wants to use the value as a string we need to change the object type
if (targetType == typeof(string))
value = value.ToString();
return func.DynamicInvoke(value);
}