/// <summary>
/// Populate missing or incomplete properties from model metadata.
/// </summary>
/// <param name="fieldInfo">The <c>ExcelColumnInfoCollection</c> to populate.</param>
/// <param name="itemType">The type of item whose metadata this is being populated from.</param>
/// <param name="data">The collection of values being serialised. (Not used, provided for use by derived
/// types.)</param>
protected virtual void PopulateFieldInfoFromMetadata(ExcelColumnInfoCollection fieldInfo,
Type itemType,
IEnumerable <object> data)
{
// Populate missing attribute information from metadata.
var metadata = ModelMetadataProviders.Current.GetMetadataForType(null, itemType);
if (metadata != null && metadata.Properties != null)
{
foreach (var modelProp in metadata.Properties)
{
var propertyName = modelProp.PropertyName;
if (!fieldInfo.Contains(propertyName))
{
continue;
}
var field = fieldInfo[propertyName];
var attribute = field.ExcelAttribute;
if (!field.IsExcelHeaderDefined)
{
field.Header = modelProp.DisplayName ?? propertyName;
}
if (attribute != null && attribute.UseDisplayFormatString)
{
field.FormatString = modelProp.DisplayFormatString;
}
}
}
}
/// <summary>
/// Get the <c>ExcelColumnInfo</c> for all members of a class.
/// </summary>
/// <param name="itemType">Type of item being serialised.</param>
/// <param name="data">The collection of values being serialised. (Not used, provided for use by derived
/// types.)</param>
public virtual ExcelColumnInfoCollection GetExcelColumnInfo(Type itemType, IEnumerable <object> data)
{
var fields = GetSerialisableMemberNames(itemType, data);
var properties = GetSerialisablePropertyInfo(itemType, data);
var fieldInfo = new ExcelColumnInfoCollection();
// Instantiate field names and fieldInfo lists with serialisable members.
foreach (var field in fields)
{
var propName = field;
var prop = properties.FirstOrDefault(p => p.Name == propName);
if (prop == null)
{
continue;
}
fieldInfo.Add(new ExcelColumnInfo(field, util.GetAttribute <ExcelColumnAttribute>(prop)));
}
PopulateFieldInfoFromMetadata(fieldInfo, itemType, data);
return(fieldInfo);
}