Introduction
Today, in this article let's play around with one of the interesting and most useful concepts in Azure.
Question: What is creating a table in a Cloud?
In simple terms "It enables creation of a table in a Cloud in Azure client storage".
Step 1: Open Visual Studio and create an "ASP.NET Web Application", as in:
Step 2: The compete code of StudentEntity.cs looks like this:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.WindowsAzure.StorageClient;
namespace CreateCloudTableApp
{
public class StudentEntity : TableServiceEntity
{
public int Id { get; set;
}
public string FirstName
{
get; set;
}
public string LastName
{
get; set;
}
public int Age
{
get; set;
}
}
}
Step 3: The complete code of webform1.aspx looks like this:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="CreateCloudTableApp._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<center>
<div>
<table>
<tr>
<td colspan="2">
<asp:Label ID="Label1" runat="server" Text="Create Table on Cloud Operations - Azure"
Font-Bold="true" Font-Size="Large" Font-Names="Verdana" ForeColor="Maroon"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label3" runat="server" Text="Please Enter Table Name" Font-Size="Large"
Font-Names="Verdana" Font-Italic="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server" Width="120px"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2">
<center>
<div>
<table>
<tr>
<td>
<asp:Label ID="Label7" runat="server" Text="Please Enter Id" Font-Size="Large" Font-Names="Verdana"
Font-Italic="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox5" runat="server" Width="120px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label2" runat="server" Text="Please Enter First Name" Font-Size="Large"
Font-Names="Verdana" Font-Italic="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox2" runat="server" Width="120px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label4" runat="server" Text="Please Enter Last Name" Font-Size="Large"
Font-Names="Verdana" Font-Italic="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox3" runat="server" Width="120px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label6" runat="server" Text="Please Enter Age" Font-Size="Large" Font-Names="Verdana"
Font-Italic="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox4" runat="server" Width="120px"></asp:TextBox>
</td>
</tr>
</table>
</div>
</center>
</td>
</tr>
<tr>
<td colspan="2" style="text-align: center">
<asp:Button ID="Button1" runat="server" Text="Create Table on Cloud" Font-Names="Verdana"
Width="213px" BackColor="Orange" Font-Bold="True" OnClick="Button1_Click" />
</td>
</tr>
<tr>
<td colspan="2" style="top: 50px; text-align: center">
<asp:Label ID="Label5" runat="server" Font-Bold="true" Font-Names="Verdana" ForeColor="Maroon"></asp:Label>
</td>
</tr>
</table>
</div>
</center>
</form>
</body>
</html>
Step 4: the Complete code of webform2.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;
using Microsoft.WindowsAzure.StorageClient;
using Microsoft.WindowsAzure;
using System.Configuration;
namespace CreateCloudTableApp
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
TextBox1.Focus();
}
protected void Button1_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(TextBox1.Text) || string.IsNullOrEmpty(TextBox2.Text) || string.IsNullOrEmpty(TextBox3.Text) || string.IsNullOrEmpty(TextBox4.Text) || string.IsNullOrEmpty(TextBox5.Text))
{
Label5.Text = "";
Label5.ForeColor = System.Drawing.Color.Red;
}
{
CloudStorageAccount obj_Account = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["ClientConnectionString"]);
CreateTable(obj_Account);
Label5.Text = "Table created successfully"; Label5.ForeColor = System.Drawing.Color.Green;
}
}
protected void CreateTable(CloudStorageAccount storage)
{
CloudTableClient cloud_Table = new CloudTableClient(storage.TableEndpoint.ToString(), storage.Credentials);
cloud_Table.CreateTableIfNotExist(TextBox1.Text);
TableServiceContext table_Context = cloud_Table.GetDataServiceContext();
StudentEntity obj_Entity = new StudentEntity();
obj_Entity.FirstName = TextBox2.Text;
obj_Entity.LastName = TextBox3.Text;
obj_Entity.Age = int.Parse(TextBox4.Text);
obj_Entity.Id = int.Parse(TextBox5.Text);
obj_Entity.PartitionKey = obj_Entity.FirstName; obj_Entity.RowKey = Guid.NewGuid().ToString();
table_Context.AddObject(TextBox1.Text, obj_Entity);
table_Context.SaveChanges();
}
}
}
Step 5: The output of the application looks like this:
I hope this article is useful for you.
Comments
Join the conversation! Your thoughts help the community grow.