Some examples follow of how this information might be used:A PARENT_UNIQUE_NAME that is NULL means that the node is the top node of the model. If the value of PARENT_UNIQUE_NAME is 0, the node must be a direct descendant of the top node in the model. This is because the ID of ...
In the preceding code, the generic classes IdentityUser<TKey> and IdentityRole<TKey> must be specified to use the new key type. Startup.ConfigureServices must be updated to use the generic user: C# Copy services.AddDefaultIdentity<IdentityUser<Guid>>(options => options.SignIn.RequireConfi...
using System; using System.Collections.Generic; using System.Collections.ObjectModel; public class Dinosaurs : Collection<string> { public event EventHandler<DinosaursChangedEventArgs> Changed; protected override void InsertItem(int index, string newItem) { base.InsertItem(index, newItem); EventHandler...
The scalar type to be configured. Returns TypeMappingConfigurationBuilder<TScalar> An object that can be used to configure the scalars. Remarks Unlike Properties<TProperty>() this method should only be called on a non-nullable concrete type. Calling it on a base type will not apply the con...
For example, DateField fields use a Python datetime object to store data. Databases don’t store datetime objects, so the field value must be converted into an ISO-compliant date string for insertion into the database. Insert the data into the database. The preprocessed, prepared data is comp...
data, files, auto_id, prefix, object_data, error_class, label_suffix, empty_permitted, use_required_attribute=use_required_attribute, ) 初始化过程中将instance接收进来,并且将self.base_fields进行深拷贝给self.fields。 2.2、is_valid 这个对ModelForm进行校验就是和Form的一样: ...
so that it is possible to know what type a given object has, and arefcount, so that the same object can be referenced in multiple places without allocating it multiple times. Finally theptrfield points to the actual representation of the object, which might vary even for the same type, de...
Model, parameter, and observable names cannot contain brackets[ ]and cannot be empty, the wordtime, or all whitespace. Compartment, species, and observable names cannot contain the characters->,<->,[or]and cannot be empty, the wordnull, or the wordtime. However, a name can contain the wo...
Returns the Node that will be run in the embedded server. Methods in oracle.jdeveloper.runner with parameters of type Node Modifier and TypeMethod and Description boolean RunningProcess.canRun(java.lang.String runType, java.lang.Object cookie, Node node, java.util.List errors) Always returns...
emptyData() removes an entire single database or all the databases defined. The rest of the file implements the generic commands exposed to the client. object.c The robj structure defining Redis objects was already described. Inside object.c there are all the functions that operate with Redis...