Select Data Using EDMF From Cloud Database With Azure

Introduction

Today, in this article let's play around with one of the interesting and most useful concepts in Azure.

Question: What is select data from cloud database using Azure?

In simple terms "It enables selection of data from a cloud database and maintaining it with the help of Azure".

Step 1: Create a cloud database named "Company"

Step 2: With the help of manage URL navigate to a specific server page

Manage URL: etc6zpqnyc.database.windows.net

Step 3: Company database showing up in the database server page

Step 4: Create an employee table. The design mode of the employee table looks like this:

Step 5: Insert some data into the table:

Step 6: Open Visual Studio 2010 and create an "ASP.NET Web Forms Application", as in:

Step 7: Add an EDMF item to the project

Step 8: Choose generate from database and click the "Next" button

Step 9: Add new connection

Step 10: Give the necessary server details for the connection and click on ok

Step 11: The connection is established; click the "Next" button:

Step 12: Choose the required table and click the "Finish" button:

Step 13: An EDMF is created and the design of the data looks like this:

Step 14: The complete code of default.aspx looks like this:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="SelectDataEFAzureApp._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

</head>

<body>

<div>

<table>

<tr>

<asp:Label ID="Label1" runat="server" Text="Select Data from Cloud Database with Azure"

Font-Bold="true" Font-Size="Large" Font-Names="Verdana" ForeColor="Maroon"></asp:Label>

</td>

<br />

</tr>

<tr>

<asp:Button ID="Button2" runat="server" Text="Select Data from Cloud Database with Azure"

Font-Names="Verdana" Width="391px" BackColor="Orange" Font-Bold="True" OnClick="Button2_Click" /><br />

<br />

</td>

</tr>

<tr>

<asp:GridView ID="GridView1" runat="server" BackColor="LightGoldenrodYellow" BorderColor="Tan"

BorderWidth="1px" CellPadding="2" EnableModelValidation="True" ForeColor="Black"

GridLines="None" AutoGenerateColumns="False">

</PagerStyle>

<asp:BoundField DataField="ID" HeaderText="Id" ReadOnly="true" SortExpression="Id" />

<asp:BoundField DataField="FirstName" HeaderText="First Name" ReadOnly="true" />

<asp:BoundField DataField="LastName" HeaderText="Last Name" ReadOnly="true" />

<asp:BoundField DataField="Age" HeaderText="Age" ReadOnly="true" />

</Columns>

</asp:GridView>

</td>

</tr>

</table>

</div>

</center>

</form>

</body>

</html>

Step 15: The complete code of default.aspx.cs looks like this:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace SelectDataEFAzureApp

{

public partial class _Default : System.Web.UI.Page

{ protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button2_Click(object sender, EventArgs e)

{

CompanyEntities objCompany = new CompanyEntities();

GridView1.DataSource = objCompany.Employees.ToList();

GridView1.DataBind();

}

}

Step 16: The output of the application looks like this:

Step 17: The select data output of the application looks like this: