private void SetEntityKeyProperties( List <KeyValuePair <EntityDataSourceReferenceKeyColumn, object> > referenceList, bool overwriteSameValue) { EntityDataSourceUtil.CheckArgumentNull(referenceList, "referenceList"); var groups = referenceList.GroupBy(r => r.Key.Group); foreach (var group in groups) { Dictionary <string, object> partialKeys = new Dictionary <string, object>(); foreach (KeyValuePair <EntityDataSourceReferenceKeyColumn, object> reference in group) { // convert the value as needed EntityDataSourceReferenceKeyColumn column = reference.Key; object keyValue = reference.Value; if (null == keyValue) { partialKeys = null; break; } partialKeys.Add(column.KeyMember.Name, keyValue); } // we only set the entitykey for once, although there might be more than one // properties descriptor associated with the same entitykey group.Key.SetKeyValues(this, partialKeys); } }
/// <summary> /// Use this method to set the properties on the wrapped entity /// </summary> /// <param name="propertiesFromViewState"></param> /// <param name="wrapper"></param> /// <param name="overwriteSameValue"></param> internal void SetAllProperties(Dictionary <string, object> propertiesFromViewState, bool overwriteSameValue, ref Dictionary <string, Exception> propertySettingExceptionsCaught) { // We aggregate the reference descriptors rather than setting them directly // to account for compound keys (we need all components of the key to create // an EntityKey that can be set on the EntityReference) var referenceList = new List <KeyValuePair <EntityDataSourceReferenceKeyColumn, object> >(); foreach (EntityDataSourceWrapperPropertyDescriptor descriptor in _collection.AllPropertyDescriptors) { // figure out which display name to match for this descriptor string displayName = descriptor.Column.DisplayName; // if we have a controlling column, use its display name instead if (descriptor.Column.ControllingColumn != null) { displayName = descriptor.Column.ControllingColumn.DisplayName; } object value; if (propertiesFromViewState.TryGetValue(displayName, out value)) { // get all changed ReferencePropertyDescriptor from ViewState EntityDataSourceReferenceKeyColumn referenceColumn = descriptor.Column as EntityDataSourceReferenceKeyColumn; // convert the value as needed object adjustedValue = EntityDataSourceUtil.ConvertType(value, descriptor.PropertyType, descriptor.DisplayName); if (null != referenceColumn) { referenceList.Add(new KeyValuePair <EntityDataSourceReferenceKeyColumn, object>( referenceColumn, adjustedValue)); continue; } if (overwriteSameValue || adjustedValue != descriptor.GetValue(this)) { if (EntityDataSourceUtil.NullCanBeAssignedTo(descriptor.PropertyType) || null != adjustedValue) { try { descriptor.SetValue(this, adjustedValue); } catch (Exception e) { // The property descriptor uses reflection to set the property. Therefore, the inner exception contains the actual message. Exception exceptionToThrow = e; if (e.InnerException != null) { exceptionToThrow = e.InnerException; } if (null == propertySettingExceptionsCaught) { propertySettingExceptionsCaught = new Dictionary <string, Exception>(); } propertySettingExceptionsCaught.Add(descriptor.DisplayName, exceptionToThrow); } } } } } // aggregate setting for EntityKey SetEntityKeyProperties(referenceList, overwriteSameValue); }