%META:TOPICPARENT{name="VirtPostgresEntityFrameworkUsage"}%

===Visual Studio Windows <nop>DataGrid Form Application===

This article details the steps required to create a simple Visual Studio 2008 Windows Form application, with associated <nop>DataGridView control for displaying data in selected tables from the target database.

1. Launch the Visual Studio 2008 SP1 IDE.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp01.png" style="wikiautogen"/>%BR%%BR%
   
2. 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%

3. When the New Project window appears, choose either <b>Visual Basic</b> or <b>Visual C#</b> as your programming language.%BR%%BR% 
   
4. Within the language category, click on <b>Windows</b> and select <b>Windows Form Application</b> from the right-hand panel. %BR%%BR%

5. Choose a name for the project, for example <b><nop>VirtWindowsFormApplication</b>, and click <b>OK</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp02.png" style="wikiautogen"/>%BR%%BR%
   
6. In the <b>Toolbox</b>, expand <b>Data</b> Controls and drag the <b><nop>DataGridView</b> control onto the form.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp03.png" style="wikiautogen"/>%BR%%BR%
   
7. Click on the little <b>arrow</b> in the top right of the <b><nop>DataGridView</b> control to load the <b><nop>DataGridView Task</b> menu.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp04.png" style="wikiautogen"/>%BR%%BR%
   
8. Click on the <b>Choose Data Source</b> list box.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp05.png" style="wikiautogen"/>%BR%%BR%
   
9. Click on the <b>Add Project Data Source</b> link to connect to a data source.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp06.png" style="wikiautogen"/>%BR%%BR%
   
10. In the <b>Data Source Configuration Wizard</b> dialog <b>Choose Data Source Type</b> page, select the <b>Database</b> data source type and click <b>Next</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp07.png" style="wikiautogen"/>%BR%%BR%
   
12. In the <b>Data Source Configuration Wizard</b> dialog <b>Choose your Data Connection</b> page, select the <b>New Connection</b> button.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp08.png" style="wikiautogen"/>%BR%%BR%
   
13. 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%/VirtDataGridApp09.png" style="wikiautogen"/>%BR%%BR%
   
14. In the <b>Connection Properties</b> dialog, specify the <b>hostname</b>, <b>portno</b>, <b>username</b> and password for the target Virtuoso Server and click the <b>Advanced</b> button.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtDataGridApp10.png" style="wikiautogen"/>%BR%%BR%
   
15. In the <b>Advanced Properties</b> dialog, set the <b>Database</b> parameter to <b>Northwind</b> and click **OK**.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp1.png" style="wikiautogen"/>%BR%%BR%
   
16. Press the <b>Test Connection</b> dialog to verify that the database is accessible.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp2.png" style="wikiautogen"/>%BR%%BR%
   
17. Leave the default connect string name--<b><nop>NorthwindConnectionString</b>--and click <b>Next</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp3.png" style="wikiautogen"/>%BR%%BR%
   
18. From the list of available tables returned for the Northwind database, select the <b>Shippers</b> table to be associated with the <b><nop>DataGridView</b> control.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp4.png" style="wikiautogen"/>%BR%%BR%
   
19. The column names of the selected table will be displayed in the the <nop>DataGridView.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp5.png" style="wikiautogen"/>%BR%%BR%
   
20. Resize the form and <nop>DataGridView to allow all columns to be visible, if possible.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp6.png" style="wikiautogen"/>%BR%%BR%
   
21. To test the application, simply hit <b>Ctrl+F5</b> within Visual Studio or select <b>Start Debugging</b> from the <b>Debug</b> menu.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp7.png" style="wikiautogen"/>%BR%%BR%
   
22. The data from the <b>Shippers</b> table will be displayed in the <b><nop>DataGrid</b>.
%BR%%BR%<img src="%ATTACHURLPATH%/VirtPGRDataGridApp8.png" style="wikiautogen"/>%BR%%BR%

The task is now complete.