本文整理汇总了C#中EntityManager.GetEntityByKey方法的典型用法代码示例。如果您正苦于以下问题：C# EntityManager.GetEntityByKey方法的具体用法？C# EntityManager.GetEntityByKey怎么用？C# EntityManager.GetEntityByKey使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类EntityManager的用法示例。
在下文中一共展示了EntityManager.GetEntityByKey方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Resolve
public EntityError Resolve(EntityManager em) {
IsServerError = true;
try {
EntityType entityType = null;
if (EntityTypeName != null) {
var stName = TypeNameInfo.FromClrTypeName(EntityTypeName).ToClient(em.MetadataStore).StructuralTypeName;
entityType = em.MetadataStore.GetEntityType(stName);
var ek = new EntityKey(entityType, KeyValues);
Entity = em.GetEntityByKey(ek);
}
if (entityType != null) {
if (PropertyName != null) {
Property = entityType.Properties.FirstOrDefault(p => p.NameOnServer == PropertyName);
if (Property != null) {
PropertyName = Property.Name;
}
}
var vc = new ValidationContext(this.Entity);
vc.Property = Property;
var veKey = (ErrorName ?? ErrorMessage) + (PropertyName ?? "");
var ve = new ValidationError(null, vc, ErrorMessage, veKey);
ve.IsServerError = true;
this.Entity.EntityAspect.ValidationErrors.Add(ve);
}
} catch (Exception e) {
ErrorMessage = ( ErrorMessage ?? "") + ": Unable to Resolve this error: " + e.Message;
}
return this;
}示例2: ProcessSaveResult
private SaveResult ProcessSaveResult(EntityManager entityManager, SaveOptions saveOptions, JNode jNode) {
var kms = jNode.GetArray<KeyMapping>("KeyMappings");
var keyMappings = kms.Select(km => ToEntityKeys(km, entityManager.MetadataStore)).ToDictionary(tpl => tpl.Item1, tpl => tpl.Item2);
using (entityManager.NewIsLoadingBlock(false)) {
keyMappings.ForEach(km => {
var targetEntity = entityManager.GetEntityByKey(km.Key);
targetEntity.EntityAspect.SetDpValue(km.Key.EntityType.KeyProperties[0], km.Value.Values[0]);
});
var entityNodes = jNode.GetToken<JArray>("Entities");
var serializer = new JsonSerializer();
var mappingContext = new MappingContext() {
EntityManager = entityManager,
MergeStrategy = MergeStrategy.OverwriteChanges,
LoadingOperation = LoadingOperation.Save,
JsonResultsAdapter = saveOptions.DataService.JsonResultsAdapter
};
var jsonConverter = new JsonEntityConverter(mappingContext);
serializer.Converters.Add(jsonConverter);
// serializer.Converters.Add(new StringEnumConverter());
// Don't use the result of the Deserialize call to get the list of entities
// because it won't include entities added on the server.
serializer.Deserialize<IEnumerable<IEntity>>(entityNodes.CreateReader());
var allEntities = mappingContext.Entities;
allEntities.ForEach(e => e.EntityAspect.AcceptChanges());
return new SaveResult(allEntities, keyMappings);
}
}示例3: ExpImpDeleted
public async Task ExpImpDeleted() {
var em1 = await TestFns.NewEm(_serviceName);
var c1 = new Customer() { CompanyName = "Test_1", City = "Oakland", RowVersion = 13, Fax = "510 999-9999" };
var c2 = new Customer() { CompanyName = "Test_2", City = "Oakland", RowVersion = 13, Fax = "510 999-9999" };
em1.AddEntity(c1);
em1.AddEntity(c2);
var sr = await em1.SaveChanges();
Assert.IsTrue(sr.Entities.Count == 2);
c1.EntityAspect.Delete();
c2.CompanyName = TestFns.MorphString(c2.CompanyName);
var exportedEntities = em1.ExportEntities(null, false);
var em2 = new EntityManager(em1);
em2.ImportEntities(exportedEntities);
var c1x = em2.GetEntityByKey<Customer>(c1.EntityAspect.EntityKey);
Assert.IsTrue(c1x.EntityAspect.EntityState.IsDeleted(), "should be deleted");
var c2x = em2.GetEntityByKey<Customer>(c2.EntityAspect.EntityKey);
Assert.IsTrue(c2x.CompanyName == c2.CompanyName, "company names should match");
}示例4: ExpImpWithNulls
public async Task ExpImpWithNulls() {
var em1 = await TestFns.NewEm(_serviceName);
var queryOptions = new QueryOptions(FetchStrategy.FromServer, MergeStrategy.OverwriteChanges);
var q0 = new EntityQuery<Customer>().Where(c => c.CompanyName != null && c.City != null)
.With(MergeStrategy.OverwriteChanges);
var r0 = (await em1.ExecuteQuery(q0)).ToList();
Assert.IsTrue(r0.Count > 2);
r0[0].CompanyName = null;
r0[1].City = null;
var exportedEntities = em1.ExportEntities(null, false);
var em2 = new EntityManager(em1);
em2.ImportEntities(exportedEntities);
var ek0 = r0[0].EntityAspect.EntityKey;
var ek1 = r0[1].EntityAspect.EntityKey;
var e0 = em2.GetEntityByKey<Customer>(ek0);
Assert.IsTrue(e0.CompanyName == null, "company name should be null");
Assert.IsTrue(e0.EntityAspect.EntityState.IsModified());
var e1 = em2.GetEntityByKey<Customer>(ek1);
Assert.IsTrue(e1.City == null, "city should be null");
Assert.IsTrue(e1.EntityAspect.EntityState.IsModified());
em2.AcceptChanges();
var exportedEntities2 = em2.ExportEntities(null, false);
em1.ImportEntities(exportedEntities2, new ImportOptions(MergeStrategy.OverwriteChanges));
Assert.IsTrue(em1.GetChanges().Count() == 0);
}