public void BasicDynamicCRUDTest()
{
var fieldList = new List <FieldAttribute>();
fieldList.Add(new FieldAttribute()
{
FieldName = "ID",
IsPrimaryKey = true,
DataType = System.Data.DbType.Int32
});
fieldList.Add(new FieldAttribute()
{
FieldName = "FirstName",
DataType = System.Data.DbType.String
});
fieldList.Add(new FieldAttribute()
{
FieldName = "LastName",
DataType = System.Data.DbType.String,
AllowsNulls = false
});
var definition = new DynamicEntityDefinition("People", fieldList, KeyScheme.Identity);
var store = new SqlCeDataStore(Path.Combine(TestContext.TestDir, "test.sdf"));
store.CreateStore();
Assert.IsFalse(store.TableExists(definition.EntityName));
store.RegisterDynamicEntity(definition);
Assert.IsTrue(store.TableExists(definition.EntityName));
var entity = new DynamicEntity("People");
entity.Fields["FirstName"] = "John";
entity.Fields["LastName"] = "Doe";
store.Insert(entity);
entity = new DynamicEntity("People");
entity.Fields["FirstName"] = "Jim";
entity.Fields["LastName"] = "Smith";
store.Insert(entity);
entity = new DynamicEntity("People");
entity.Fields["FirstName"] = "Sam";
entity.Fields["LastName"] = "Adams";
store.Insert(entity);
var items = store.Select("People");
DumpData(items);
store.Delete("People", items.First().Fields["ID"]);
items = store.Select("People");
DumpData(items);
store.Delete("People", "LastName", "Smith");
items = store.Select("People");
DumpData(items);
var person = items.First();
person.Fields["FirstName"] = "Joe";
person.Fields["LastName"] = "Satriani";
store.Update(person);
items = store.Select("People");
DumpData(items);
// now let's change the structure and see what happens
fieldList.Add(new FieldAttribute()
{
FieldName = "Middle_Name",
DataType = System.Data.DbType.Double,
AllowsNulls = true // this has to be true to add a column
});
var newDefinition = new DynamicEntityDefinition("People", fieldList, KeyScheme.Identity);
store.RegisterDynamicEntity(newDefinition, true);
items = store.Select("People");
}