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%META:TOPICPARENT{name="VirtIngresEntityFrameworkUsage"}%
---+++Creating an Entity Data Model (EDM) for the Ingres Tutorial database
The following steps can be used to create an Entity Data Model (EDM) for the Ingres Tutorial database:
1 Launch the Visual Studio 2008 SP1 IDE.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtAdoNetDataServices_1.png" style="wikiautogen"/>%BR%%BR%
1 Create a <b>Web Application</b> project by going to the <b>File</b> menu in Visual Studio and choosing <b>New Project</b>. %BR%%BR%
1 When the New Project window appears, choose either <b>Visual Basic</b> or <b>Visual C#</b> as the programming language.%BR%%BR%
1 Within the language category, click on <b>Web</b> and select <b>ASP.NET Web Application</b> from the right-hand panel. %BR%%BR%
1 Choose a name for the project, for example <b><nop>VirtuosoDataService</b>, and click <b>OK</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtAdoNetDataServices_2.png" style="wikiautogen"/>%BR%%BR%
1 This will create a new project called <b><nop>VirtuosoDataService</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtAdoNetDataServices_3.png" style="wikiautogen"/>%BR%%BR%
1 Right click on the <b><nop>VirtuosoDataService</b> project name of the <b>Solution Explorer</b> pane. Then, select the <b>Add</b> -> <b>New Item</b> menu option.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtAdoNetDataServices_4.png" style="wikiautogen"/>%BR%%BR%
1 The <b>Add New Item</b> dialog will appear. Choose the <b>ADO.NET Entity Data Model</b> template. Give it the name <b>Virtuoso.edmx</b>, and click <b>Add</b> to start the creation of the ADO.Net Entity Data Model.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtAdoNetDataServices_5.png" style="wikiautogen"/>%BR%%BR%
1 In the <b>Entity Data Model Wizard</b> dialog <b>Choose Model Contents</b> page, select the <b>Generate from Database</b> model type and click <b>Next</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtAdoNetDataServices_6.png" style="wikiautogen"/>%BR%%BR%
1 In the <b>Entity Data Model Wizard</b> dialog <b>Choose your Data Connection</b> page, select the <b>New Connection</b> button.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtEDM1.png" style="wikiautogen"/>%BR%%BR%
1 In the <b>Choose Data Source</b>dialog, select the <b><nop>OpenLink Virtuoso Data Source</b> from the list and click <b>Continue</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtEDM2.png" style="wikiautogen"/>%BR%%BR%
1 In the <b>Add Connection</b> dialog, specify the <b>hostname</b>, <b>portno</b>, <b>username</b>, and <b>password</b> for the target Virtuoso Server and and check the <b>Save Password</b> check box.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtAdoNetAddConn.png" style="wikiautogen"/>%BR%%BR%
1 Select the <b>Select Database From List</b> radio button and choose the <b>TUT</b> database from the drop down list.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtIngresEDM4.png" style="wikiautogen"/>%BR%%BR%
1 Press the <b>Test Connection</b> dialog to verify the database is accessible.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtEDM5.png" style="wikiautogen"/>%BR%%BR%
1 Click <b>OK</b> to add the connection.%BR%
%BR%%BR%<img src="%ATTACHURLPATH%/VirtIngresEDM5_1.png" style="wikiautogen"/>%BR%%BR%
1 Set the <b>entity connect string</b> name to <b><nop>VirtuosoEntities</b> (note this name as it is required in the section on creating and ADO.Net Data Service) and click <b>Next</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtIngresEDM2.png" style="wikiautogen"/>%BR%%BR%
1 In the <b>Choose your Database Objects</b> page, tick the <b>Tables</b> check box to select all tables in the TUT catalog for addition to the Entity Data Model. Set the <b>Model Namespace</b> to <b><nop>VirtuosoModel</b> and click <b>Finish</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtIngresEDM3.png" style="wikiautogen"/>%BR%%BR%
1 The <b>Virtuoso.edmx</b> EDM will be created with the tables and relationships displayed in the Visual Studio IDE.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtIngresEDM6.png" style="wikiautogen"/>%BR%%BR%
Creation of the Entity Data Model for the Ingres Tutorial database is now complete.
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