本文整理汇总了C#中DbContext.GetRequiredService方法的典型用法代码示例。如果您正苦于以下问题：C# DbContext.GetRequiredService方法的具体用法？C# DbContext.GetRequiredService怎么用？C# DbContext.GetRequiredService使用的例子？那么, 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DbContext的用法示例。
在下文中一共展示了DbContext.GetRequiredService方法的1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: Compare_returns_0_only_for_commands_that_are_equal
public void Compare_returns_0_only_for_commands_that_are_equal()
{
var model = new Entity.Metadata.Model();
var entityType = model.AddEntityType(typeof(object));
var optionsBuilder = new DbContextOptionsBuilder()
.UseModel(model);
optionsBuilder.UseInMemoryDatabase();
var contextServices = new DbContext(optionsBuilder.Options).GetService();
var stateManager = contextServices.GetRequiredService<IStateManager>();
var key = entityType.AddProperty("Id", typeof(int));
entityType.GetOrSetPrimaryKey(key);
var entry1 = stateManager.GetOrCreateEntry(new object());
entry1[key] = 1;
entry1.SetEntityState(EntityState.Added);
var modificationCommandAdded = new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider());
modificationCommandAdded.AddEntry(entry1);
var entry2 = stateManager.GetOrCreateEntry(new object());
entry2[key] = 2;
entry2.SetEntityState(EntityState.Modified);
var modificationCommandModified = new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider());
modificationCommandModified.AddEntry(entry2);
var entry3 = stateManager.GetOrCreateEntry(new object());
entry3[key] = 3;
entry3.SetEntityState(EntityState.Deleted);
var modificationCommandDeleted = new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider());
modificationCommandDeleted.AddEntry(entry3);
var mCC = new ModificationCommandComparer();
Assert.True(0 == mCC.Compare(modificationCommandAdded, modificationCommandAdded));
Assert.True(0 == mCC.Compare(null, null));
Assert.True(0 == mCC.Compare(
new ModificationCommand("A", "dbo", new ParameterNameGenerator(), p => p.TestProvider()),
new ModificationCommand("A", "dbo", new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 > mCC.Compare(null, new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 < mCC.Compare(new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider()), null));
Assert.True(0 > mCC.Compare(
new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider()),
new ModificationCommand("A", "dbo", new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 < mCC.Compare(
new ModificationCommand("A", "dbo", new ParameterNameGenerator(), p => p.TestProvider()),
new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 > mCC.Compare(
new ModificationCommand("A", "dbo", new ParameterNameGenerator(), p => p.TestProvider()),
new ModificationCommand("A", "foo", new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 < mCC.Compare(
new ModificationCommand("A", "foo", new ParameterNameGenerator(), p => p.TestProvider()),
new ModificationCommand("A", "dbo", new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 > mCC.Compare(
new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider()),
new ModificationCommand("B", null, new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 < mCC.Compare(
new ModificationCommand("B", null, new ParameterNameGenerator(), p => p.TestProvider()),
new ModificationCommand("A", null, new ParameterNameGenerator(), p => p.TestProvider())));
Assert.True(0 > mCC.Compare(modificationCommandModified, modificationCommandAdded));
Assert.True(0 < mCC.Compare(modificationCommandAdded, modificationCommandModified));
Assert.True(0 > mCC.Compare(modificationCommandDeleted, modificationCommandAdded));
Assert.True(0 < mCC.Compare(modificationCommandAdded, modificationCommandDeleted));
Assert.True(0 > mCC.Compare(modificationCommandDeleted, modificationCommandModified));
Assert.True(0 < mCC.Compare(modificationCommandModified, modificationCommandDeleted));
}