How to: Color Dashboard Item Elements in the Web Viewer


Starting with v17.1, we recommend using the ASPxDashboard control or a corresponding ASP.NET MVC extension to display dashboards within web applications. Refer to the following KB articles to learn more about migration to ASPxDashboard / ASP.NET MVC Dashboard:

The following example demonstrates how to color dashboard item elements using the ASPxClientDashboardViewer.ItemElementCustomColor event.

In this example, chart series points, whose values exceed specified thresholds, are colored in green. Chart series points, whose values fall below specified thresholds, are colored in red.

Pie segments, whose contributions in total fall below the specified threshold, are colored in orange.

Imports System
Imports DevExpress.DashboardWeb
Imports DevExpress.DataAccess.ConnectionParameters

Namespace Dashboard_ElementCustomColor_Web
    Partial Public Class WebForm1
        Inherits System.Web.UI.Page

        Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

        End Sub

        Protected Sub ASPxDashboardViewer1_ConfigureDataConnection(ByVal sender As Object, _
                                           ByVal e As ConfigureDataConnectionWebEventArgs)
            If e.ConnectionName = "nwindConnection" Then

                ' Gets connection parameters used to establish a connection to the database.
                Dim parameters As Access97ConnectionParameters =
                    CType(e.ConnectionParameters, Access97ConnectionParameters)
                Dim databasePath As String = Server.MapPath("App_Data/nwind.mdb")

                ' Specifies the path to a database file.                    
                parameters.FileName = databasePath
            End If
        End Sub
    End Class
End Namespace

See Also