/// <summary>
/// Updates the given SPListItem with the value passed.
/// This method does not call Update or SystemUpdate.
/// </summary>
/// <param name="item">The SharePoint list item to update.</param>
/// <param name="fieldValueInfo">The value information to be updated in the SPListItem.</param>
public void WriteValueToListItem(SPListItem item, FieldValueInfo fieldValueInfo)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if (fieldValueInfo == null || fieldValueInfo.FieldInfo == null)
{
throw new ArgumentNullException("fieldValueInfo");
}
IBaseValueWriter valueWriter = this.GetWriter(fieldValueInfo);
valueWriter.WriteValueToListItem(item, fieldValueInfo);
}
/// <summary>
/// Extracts the values from the entity to fill the values.
/// </summary>
/// <typeparam name="T">The type of the entity.</typeparam>
/// <param name="entity">The entity.</param>
/// <param name="listItem">The list item.</param>
public void FromEntity <T>(T entity, SPListItem listItem)
{
var schema = this.entitySchemaFactory.GetSchema(typeof(T));
var listItemFields = listItem.Fields;
foreach (var binding in schema.PropertyConversionDetails.ToList().Where(x => x.BindingType == BindingType.Bidirectional || x.BindingType == BindingType.WriteOnly))
{
var valueFromEntity = binding.EntityProperty.GetValue(entity, null);
IBaseValueWriter writer = binding.ValueWriter;
// Create a MinimalFieldInfo<TValueType> to feed into the FieldValueInfo needed to
// interact with IBaseValueWriter
var minimalFieldInfoType = typeof(MinimalFieldInfo <>).MakeGenericType(writer.AssociatedValueType);
string fieldInternalName = binding.ValueKey;
SPField itemField = listItemFields.GetFieldByInternalName(fieldInternalName);
var minimalFieldInfo = (BaseFieldInfo)Activator.CreateInstance(minimalFieldInfoType, new object[] { fieldInternalName, itemField.Id });
var fieldValueInfo = new FieldValueInfo(minimalFieldInfo, valueFromEntity);
// Update the list item through the IBaseValueWriter
writer.WriteValueToListItem(listItem, fieldValueInfo);
}
}