Quick Start: Add data to FlexPie

This section describes how to add a FlexPie control to your MVC web application and add data to it.

This topic comprises of three steps:

Step 1: Create an MVC Application
Step 2: Create a Datasource for FlexPie
Step 3: Add a FlexPie control
Step 4: Build and Run the Project

The following image shows how FlexPie appears after completing the steps above:

Step 1: Create an MVC Application

Create a new MVC application using the ComponentOne templates. For more information about creating an MVC application, see Configuring your MVC Application topic.

Step 2: Create a Datasource for FlexPie

Add a new class to the folder Models (for example: FlexPieDataSource.cs). See Adding controls to know how to add a new model.

Add the following code to the new model to define the classes that serve as a datasource for the FlexPie control.

C#	Copy Code
public class FlexPieDataSource { public string Country { get; set; } public int Sales { get; set; } public static IEnumerable<FlexPieDataSource> GetData() { var countries = new[] { "US", "UK", "China", "France", "German", "Italy" }; var rand = new Random(0); List<FlexPieDataSource> list = new List<FlexPieDataSource>(); for (int i = 0; i < 6; i++) { var sales = rand.Next(1, 5); list.Add(new FlexPieDataSource { Sales = sales, Country = countries[i] }); } return list; } }

Copy Code

public class FlexPieDataSource
 {
   public string Country { get; set; }
   public int Sales { get; set; }

 public static IEnumerable<FlexPieDataSource> GetData()
  {
    var countries = new[] { "US", "UK",   "China", "France", "German", "Italy" };
    var rand = new Random(0);
    List<FlexPieDataSource> list = new List<FlexPieDataSource>();
     for (int i = 0; i < 6; i++)
      {
        var sales = rand.Next(1, 5);
        list.Add(new FlexPieDataSource {  Sales = sales, Country = countries[i] });
            }
            return list;
        }
    }

VB	Copy Code
Public Class FlexPieDataSource Public Property Country() As String Get Return m_Country End Get Set m_Country = Value End Set End Property Private m_Country As String Public Property Sales() As Integer Get Return m_Sales End Get Set m_Sales = Value End Set End Property Private m_Sales As Integer Public Shared Function GetData() As IEnumerable(Of FlexPieDataSource) Dim countries = New String() {"US", "UK", "China", "France", "German", "Italy"} Dim rand = New Random(0) Dim list As New List(Of FlexPieDataSource)() For i As Integer = 0 To 5 Dim sales = rand.[Next](1, 5) list.Add(New FlexPieDataSource() With { Key.Sales = sales, Key.Country = countries(i) }) Next Return list End Function End Class

Copy Code

Public Class FlexPieDataSource
    Public Property Country() As String
        Get
            Return m_Country
        End Get
        Set
            m_Country = Value
        End Set
    End Property
    Private m_Country As String
    Public Property Sales() As Integer
        Get
            Return m_Sales
        End Get
        Set
            m_Sales = Value
        End Set
    End Property
    Private m_Sales As Integer

    Public Shared Function GetData() As IEnumerable(Of FlexPieDataSource)
        Dim countries = New String() {"US", "UK", "China", "France", "German", "Italy"}
        Dim rand = New Random(0)
        Dim list As New List(Of FlexPieDataSource)()
        For i As Integer = 0 To 5
            Dim sales = rand.[Next](1, 5)
            list.Add(New FlexPieDataSource() With {
                Key.Sales = sales,
                Key.Country = countries(i)
            })
        Next
        Return list
    End Function
End Class

Step 3: Add a FlexPie control

Complete the following steps to initialize a FlexPie control.

Add a new Controller

In the Solution Explorer, right click the folder Controllers.
From the context menu, select Add | Controller. The Add Scaffold dialog appears.
Complete the following steps in the Add Scaffold dialog:
1. Select Empty MVC Controller template.
2. Set name of the controller (for example: Default1Controller).
3. Click Add.

Include the MVC references as shown below.

C#	Copy Code
using C1.Web.Mvc; using C1.Web.Mvc.Serializition; using C1.Web.Mvc.Chart;

Replace the method Index() with the following method.

C#	Copy Code
public ActionResult QuickStart() { return View(FlexPieDataSource.GetData()); }

VB	Copy Code
Public Function QuickStart() As ActionResult Return View(FlexPieDataSource.GetData()) End Function

Add a View for the Controller

From the Solution Explorer, expand the folder Controllers and double click the controller QuickStartController to open it.
Place the cursor inside the method QuickStart().
Right click and select Add View. The Add View dialog appears.
In the Add View dialog, verify that the view name is QuickStart and View engine is Razor (CSHTML).
Click Add. A view is added for the controller.

Instantiate a FlexPie control in the view QuickStart as shown below.

HTML Helpers
Tag Helpers

Index.cshtml	Copy Code
@using MvcApplication1.Models @model IEnumerable<FlexPieDataSource> @(Html.C1().FlexPie<FlexPieDataSource>() .Bind("Country", "Sales", Model) )

Index.vbhtml	Copy Code
@ModelType IEnumerable(Of FlexPieDataSource) @(Html.C1().FlexPie(Of FlexPieDataSource) _ .Bind("Country", "Sales", Model) _ .Height("300px"))

Index.cshtml	Copy Code
<c1-flex-pie binding-name="Country" binding="Sales"> <c1-items-source source-collection="Model"></c1-items-source> </c1-flex-pie>

Step 4: Build and Run the Project

Click Build | Build Solution to build the project.

Press F5 to run the project.

Append the folder name and view name to the generated URL (for example: http://localhost:1234/QuickStart/QuickStart) in the address bar of the browser to see the view.