private static void UpdateOriginalValues(ObjectStateEntry entry, EntityInfo entityInfo)
{
var originalValuesMap = entityInfo.OriginalValuesMap;
if (originalValuesMap == null || originalValuesMap.Keys.Count == 0)
{
return;
}
var originalValuesRecord = entry.GetUpdatableOriginalValues();
originalValuesMap.ToList().ForEach(kvp => {
var propertyName = kvp.Key;
var originalValue = kvp.Value;
try {
entry.SetModifiedProperty(propertyName);
if (originalValue is JObject)
{
// only really need to perform updating original values on key properties
// and a complex object cannot be a key.
}
else
{
var ordinal = originalValuesRecord.GetOrdinal(propertyName);
var fieldType = originalValuesRecord.GetFieldType(ordinal);
var originalValueConverted = ConvertValue(originalValue, fieldType);
if (originalValueConverted == null)
{
// bug - hack because of bug in EF - see
// http://social.msdn.microsoft.com/Forums/nl/adodotnetentityframework/thread/cba1c425-bf82-4182-8dfb-f8da0572e5da
var temp = entry.CurrentValues[ordinal];
entry.CurrentValues.SetDBNull(ordinal);
entry.ApplyOriginalValues(entry.Entity);
entry.CurrentValues.SetValue(ordinal, temp);
}
else
{
originalValuesRecord.SetValue(ordinal, originalValueConverted);
}
}
} catch (Exception e) {
if (e.Message.Contains(" part of the entity's key"))
{
throw;
}
else
{
// this can happen for "custom" data entity properties.
}
}
});
}
private int GetPropertyIndex(ObjectStateEntry entry, string propertyName)
{
OriginalValueRecord record = entry.GetUpdatableOriginalValues();
for (int i = 0; i != record.FieldCount; i++)
{
FieldMetadata metaData = record.DataRecordInfo.FieldMetadata[i];
if (metaData.FieldType.Name == propertyName)
{
return(metaData.Ordinal);
}
}
return(-1);
}
private void Merge_Click(object sender, EventArgs e)
{
ApplyChanges = true;
object version = _entry.OriginalValues["Version"];
_entry.ChangeState(EntityState.Unchanged);
_entry.GetUpdatableOriginalValues().SetValue(_entry.OriginalValues.GetOrdinal("Version"), version);
foreach (TreeNode node in tree.Nodes)
{
if (node.Checked)
{
_entry.SetModifiedProperty(node.Tag.ToString());
}
}
Close();
}
private static void UpdateOriginalValues(ObjectStateEntry entry, EntityInfo entityInfo)
{
var originalValuesMap = entityInfo.OriginalValuesMap;
if (originalValuesMap == null || originalValuesMap.Keys.Count == 0)
{
return;
}
var originalValuesRecord = entry.GetUpdatableOriginalValues();
originalValuesMap.ToList().ForEach(kvp => {
var propertyName = kvp.Key;
var originalValue = kvp.Value;
try {
entry.SetModifiedProperty(propertyName);
if (originalValue is JObject)
{
// only really need to perform updating original values on key properties
// and a complex object cannot be a key.
}
else
{
var ordinal = originalValuesRecord.GetOrdinal(propertyName);
var fieldType = originalValuesRecord.GetFieldType(ordinal);
var originalValueConverted = ConvertValue(originalValue, fieldType);
originalValuesRecord.SetValue(ordinal, originalValueConverted);
}
} catch (Exception e) {
if (e.Message.Contains(" part of the entity's key"))
{
throw;
}
else
{
// this can happen for "custom" data entity properties.
}
}
});
}
void IDataServiceUpdateProvider.SetConcurrencyValues(object resourceCookie, bool?checkForEquality, IEnumerable <KeyValuePair <string, object> > concurrencyValues)
{
if (checkForEquality == null)
{
throw new DataServiceException(500, "Cannot perform operation without ETag.");
}
if (!checkForEquality.Value)
{
throw new DataServiceException(500, "IfNoneMatch header not supported in update and delete.");
}
ObjectStateEntry objectStateEntry = CurrentDataSource.ObjectContext.ObjectStateManager.GetObjectStateEntry(resourceCookie);
OriginalValueRecord originalValues = objectStateEntry.GetUpdatableOriginalValues();
foreach (KeyValuePair <string, object> etag in concurrencyValues)
{
int propertyOrdinal = originalValues.GetOrdinal(etag.Key);
originalValues.SetValue(propertyOrdinal, etag.Value);
}
}
private static string GetModelNameFromDeletedEntityEntry(ObjectStateEntry entry)
{
return(entry.GetUpdatableOriginalValues().DataRecordInfo.RecordType.EdmType.Name);
}
public DbUpdatableDataRecord GetUpdatableOriginalValues()
{
return(_stateEntry.GetUpdatableOriginalValues());
}
