/// <summary>
/// Function called to convert property values to string. If no converter is
/// specified, then .ToString is called
/// </summary>
/// <param name="apiField">API field attribute</param>
/// <param name="propertyType">property type information</param>
/// <param name="value">current value</param>
/// <returns>converted value</returns>
private string ConvertPropertyValue(APIField apiField, Type propertyType, object value)
{
string convertedValue = null;
bool isConverted = false;
if (apiField.Converter != null)
{
ITypeToStringConverter converter = Activator.CreateInstance(apiField.Converter) as ITypeToStringConverter;
if (converter != null &&
converter.CanConvert(propertyType))
{
convertedValue = converter.Convert(value);
isConverted = true;
}
}
if (!isConverted)
{
convertedValue = value.ToString();
}
return(convertedValue);
}
/// <summary>
/// Function called for each property in a query object. It extracts the different properties
/// with <see cref="APIField"/> attribute and, if needed, calls appropiate converter to convert property value to string
/// </summary>
/// <param name="propertyInfo">property type information</param>
/// <param name="query">query object</param>
/// <param name="collection">collection to add the converted values</param>
private void ConvertProperty(PropertyInfo propertyInfo, object query, NameValueCollection collection)
{
var attributes = propertyInfo.GetCustomAttributes(true);
foreach (var attribute in attributes)
{
APIField nameAttr = attribute as APIField;
if (nameAttr != null)
{
object value = propertyInfo.GetValue(query);
if (value != null)
{
var convertedValue = ConvertPropertyValue(nameAttr, propertyInfo.PropertyType, value);
if (!string.IsNullOrEmpty(convertedValue))
{
collection.Add(nameAttr.ApiName, convertedValue);
}
}
// No need to continue. Only one APIField attribute per property
return;
}
}
}