/// <summary>
/// Populate a row's data into an instance of the provided class type
/// </summary>
/// <typeparam name="T">Type of class to generate</typeparam>
/// <param name="rowIndex">Index of the row (not line number!) to populate</param>
/// <returns>Instance of class</returns>
private T Populate <T>(int rowIndex, PropertyFieldMappingInfo[] classMap)
where T : class, new()
{
T instance = new T();
foreach (DataColumn column in ROWS[rowIndex].Columns)
{
PropertyFieldMappingInfo map = classMap[column.Index];
if (map != null)
{
map.Write(instance, column.Value);
}
}
return(instance);
}
/// <summary>
/// Create the FIELD_PROPERTY_MAP
/// </summary>
/// <typeparam name="ClassT">Type of the class object we need to deserialize into</typeparam>
private PropertyFieldMappingInfo[] MapHeaderToClass <ClassT>()
where ClassT : class, new()
{
ClassInfo info = TypeInspector.InspectOnlyMembersAnotated <ClassT, FileFieldAttribute>();
if (info == null)
{
throw new InvalidOperationException($"The type '{typeof(ClassT).Name}' contains no usable properties/fields. Ensure the properties/fields are decorated with the 'FileFieldAttribute' attribute.");
}
List <PropertyFieldMappingInfo> tempList = new List <PropertyFieldMappingInfo>();
int maxColumnIndex = -1;
for (int i = 0; i < info.Fields.Count; i++)
{
PropertyFieldMappingInfo map = new PropertyFieldMappingInfo(info.Fields[i]);
if ((map.ColumnIndex < 0) && (HEADER != null))
{
foreach (DataColumn col in HEADER.Columns)
{
if (col.Value == map.Attribute.Name)
{
map.ColumnIndex = col.Index;
break;
}
}
}
if (map.ColumnIndex >= 0)
{
if (map.ColumnIndex > maxColumnIndex)
{
maxColumnIndex = map.ColumnIndex;
}
tempList.Add(map);
}
}
for (int i = 0; i < info.Properties.Count; i++)
{
PropertyFieldMappingInfo map = new PropertyFieldMappingInfo(info.Properties[i]);
if ((map.ColumnIndex < 0) && (HEADER != null))
{
foreach (DataColumn col in HEADER.Columns)
{
if (col.Value == map.Attribute.Name)
{
map.ColumnIndex = col.Index;
break;
}
}
}
if (map.ColumnIndex >= 0)
{
if (map.ColumnIndex > maxColumnIndex)
{
maxColumnIndex = map.ColumnIndex;
}
tempList.Add(map);
}
}
if (tempList.Count == 0)
{
throw new InvalidOperationException($"The type '{typeof(ClassT).Name}' contains no usable properties/fields. Ensure the properties/fields are decorated with the 'FileFieldAttribute' attribute.");
}
PropertyFieldMappingInfo[] FIELD_PROPERTY_MAP = new PropertyFieldMappingInfo[maxColumnIndex + 1];
foreach (PropertyFieldMappingInfo item in tempList)
{
FIELD_PROPERTY_MAP[item.ColumnIndex] = item;
}
return(FIELD_PROPERTY_MAP);
}
