ADVANCED MODELING in Font

Generator QR in Font ADVANCED MODELING

ADVANCED MODELING
Create QR Code JIS X 0510 In None
Using Barcode maker for Font Control to generate, create QR Code ISO/IEC18004 image in Font applications.
www.OnBarcode.com
QR-Code Maker In None
Using Barcode creator for Font Control to generate, create Quick Response Code image in Font applications.
www.OnBarcode.com
) from EFRecipesModelStoreContainer.Product as p left join EFRecipesModelStoreContainer.Supplier as s on p.SupplierId = s.SupplierId </QueryView> </EntitySetMapping> The resulting model should look like the one in Figure 15-4.
PDF417 Drawer In None
Using Barcode printer for Font Control to generate, create PDF-417 2d barcode image in Font applications.
www.OnBarcode.com
UPC - 13 Creation In None
Using Barcode generation for Font Control to generate, create EAN13 image in Font applications.
www.OnBarcode.com
Figure 15-4. The completed model with our QueryView-based Product entity and the Supplier entity
Data Matrix 2d Barcode Printer In None
Using Barcode generator for Font Control to generate, create Data Matrix image in Font applications.
www.OnBarcode.com
Generate ANSI/AIM Code 128 In None
Using Barcode generation for Font Control to generate, create Code 128A image in Font applications.
www.OnBarcode.com
How It Works
Encode Barcode In None
Using Barcode maker for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
ISBN - 10 Maker In None
Using Barcode creator for Font Control to generate, create International Standard Book Number image in Font applications.
www.OnBarcode.com
We used QueryView together with changes to the conceptual model to map and reshape the columns from the Product and Supplier tables to a more consumable Product entity. This reshaping included changing the data types for some properties, ignoring a column, and creating computed properties. In the conceptual model, we changed the maximum name length to 50 characters. We changed the data type of the Discontinued property from Int32 to Boolean. And we changed the StockCount to not accept nulls. In the Entity SQL expression (in the QueryView), we handle the case of existing null stock counts by changing the value to 0. We change the Discontinued values of 1 and 0 to true and false, respectively. We compute the value of the IsBackorderable property if the product is not discontinued and the supplier is CallCom. Finally, we set the Supplier name, if it exists, from the Supplier table. If the name is null, then we substitute the string Unknown. The code in Listing 15-3 demonstrates inserting into and retrieving from our model. Because we used QueryView and did not supply stored procedures for the Insert, Update, and Delete actions, our Product entity is read-only. In the code of Listing 15-3, we use the ExecuteStoreCommand() method to directly execute the appropriate insert statements. Listing 15-3. Inserting and retrieving from our model using (var context = new EFRecipesEntities()) { var sup1 = new Supplier { SupplierId = 1, Name = "CallCom" }; var sup2 = new Supplier { SupplierId = 2, Name = "Toys, Ltd." }; context.Suppliers.AddObject(sup1); context.Suppliers.AddObject(sup2); context.SaveChanges();
Making QR Code 2d Barcode In C#.NET
Using Barcode creation for VS .NET Control to generate, create QR Code 2d barcode image in Visual Studio .NET applications.
www.OnBarcode.com
excel qr code vba
Using Barcode generator for Office Excel Control to generate, create QR-Code image in Excel applications. barcode generator excel free download excel qr code vba
www.OnBarcode.com
ADVANCED MODELING
Drawing Barcode In Java
Using Barcode generator for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
Print Barcode In .NET Framework
Using Barcode maker for VS .NET Control to generate, create Barcode image in .NET applications.
www.OnBarcode.com
// insert some products directly context.ExecuteStoreCommand(@"insert into chapter15.product(productid,name, description,stockcount,discontinued) values (1,'Flowers','Dozen red roses',4,1)"); context.ExecuteStoreCommand(@"insert into chapter15.product(productid,name description,stockcount,discontinued,supplierid) values (2,'Red Fire Truck',null,null,0,1)"); } using (var context = new EFRecipesEntities()) { foreach (var p in context.Products) { Console.WriteLine("\nName: {0}", p.Name); Console.WriteLine("Stock Count: {0}", p.StockCount.ToString()); Console.WriteLine("Discountinued: {0}", p.Discontinued "Yes" : "No"); Console.WriteLine("Supplier: {0}", p.SupplierName); } } The output from the code in Listing 15-3 is the following: Name: Flowers Stock Count: 4 Discountinued: Yes Supplier: Unknown
Draw Data Matrix 2d Barcode In None
Using Barcode generation for Word Control to generate, create Data Matrix image in Microsoft Word applications.
www.OnBarcode.com
Paint Code 128 In C#
Using Barcode maker for Visual Studio .NET Control to generate, create USS Code 128 image in .NET applications.
www.OnBarcode.com
Name: Red Fire Truck Stock Count: 0 Discountinued: No Supplier: CallCom
Code 39 Full ASCII Printer In Java
Using Barcode creator for Java Control to generate, create Code 3 of 9 image in Java applications.
www.OnBarcode.com
Print UCC.EAN - 128 In Objective-C
Using Barcode generation for iPhone Control to generate, create EAN / UCC - 14 image in iPhone applications.
www.OnBarcode.com
ADVANCED MODELING
Code-128 Drawer In Java
Using Barcode encoder for Eclipse BIRT Control to generate, create Code 128C image in BIRT applications.
www.OnBarcode.com
Barcode Creator In .NET
Using Barcode encoder for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
15-3. Creating Conditional Associations
ANSI/AIM Code 128 Encoder In Java
Using Barcode encoder for Android Control to generate, create Code 128 Code Set C image in Android applications.
www.OnBarcode.com
Decode Barcode In VB.NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Problem
You have a link table that joins two tables in a many-to-many relationship. The link table contains a column that defines the role for the relationship. You want each role in the relationship to surface as a unique association between the two entities.
Solution
Suppose you have a couple of tables in a many-to-many relationship with a link table, as shown in the database diagram in Figure 15-5.
Figure 15-5. Project and Employee in a many-to-many relationship with a column designating the role for the relationship A project can be associated with many employees, and an employee can be part of many projects. Additionally, for each project and employee relationship, the link table contains a column that indicates the role the employee plays in the related project. In our example, an employee can be a simple project member with no special responsibilities or a project manager, with all the responsibilities of the role. In the model, we want to expose each role as a separate association. This means we would have an association for members and an association for project managers. To create the model, do the following: 1. Add a new ADO.NET Entity Data Model to your project and import the Project, ProjectEmployee, and Employee tables. Or update an existing model with these tables. Create the stored procedures in Listing 15-4 in the database. Once the database has these new stored procedures, right-click the design surface and select Update Model from Database. Select the stored procedures and click Add. Right-click the ProjectEmployee entity and select Delete. Select No when prompted to delete the entity from the store model. This will delete the ProjectEmployee entity from the conceptual model, but leave the now unmapped entity in the store model.
Copyright © OnBarcode.com . All rights reserved.