Example T178798

Visible to All Users

Reporting for Web Forms - Report Designer with Report Storage and Custom Command

This example integrates the End-User Report Designer into an ASP.NET WebForms application and implements a Microsoft SQL Server database report storage to add, edit and delete reports. This example also demonstrates how to add custom commands to the report designer menu at runtime. A custom Close menu command redirects the user to the homepage.

Report Designer with Report Storage and Custom Command

Before you start

Create Reports Database

Create a Reports database in the local Microsoft SQL Server. Add the ReportLayout table with the following script:

SQL

SQL
USE [Reports]  
GO  
SET ANSI_NULLS ON  
GO  
SET QUOTED_IDENTIFIER ON  
GO  
CREATE TABLE [dbo].[ReportLayout](  
     [ReportId] [int] IDENTITY(1,1) NOT NULL,  
     [DisplayName] [nvarchar] NULL,  
     [LayoutData] [varbinary] NULL,  
     [ReportId] ASC  
CONSTRAINT [PK_ReportLayout6] PRIMARY KEY CLUSTERED  
(  
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY =  OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]  
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]  
GO

SQL Server 2016 - v13.0.x.x

SQL
USE [Reports]  
GO  
SET ANSI_NULLS ON  
GO  
SET QUOTED_IDENTIFIER ON  
GO  
CREATE TABLE [dbo].[ReportLayout](  
        [ReportId] [int] IDENTITY(1,1) NOT NULL ,  
        [DisplayName] [nvarchar](50) NULL,  
        [LayoutData] [varbinary](max) NULL,  
        CONSTRAINT PK_ReportLayout PRIMARY KEY (ReportId)  
);  
SELECT *  
FROM [dbo].[ReportLayout]  
ORDER BY [ReportId] ASC  
GO

Create Northwind Database

Create the Northwind database and add it to your local Microsoft SQL server.

Files to Review

CustomReportStorageWebExtension.cs (VB: CustomReportStorageWebExtension.vb)
Default.aspx (VB: Default.aspx)
Default.aspx.cs (VB: Default.aspx.vb)
Designer.aspx (VB: Designer.aspx)
Designer.aspx.cs (VB: Designer.aspx.vb)
DesignerTask.cs (VB: DesignerTask.vb)
Global.asax.cs (VB: Global.asax.vb)

Documentation

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Example Code

SimpleWebReportCatalog/App_Code/CustomReportStorageWebExtension.cs(vb)

C#
VB.NET

C#
using DevExpress.XtraReports.UI;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.IO;
using System.Linq;

namespace SimpleWebReportCatalog
{
    public class CustomReportStorageWebExtension : 
        DevExpress.XtraReports.Web.Extensions.ReportStorageWebExtension
    {
        private DataTable reportsTable = new DataTable();
        private SqlDataAdapter reportsTableAdapter;
        public CustomReportStorageWebExtension()
        {
            string connectionString = ConfigurationManager.ConnectionStrings["catalogConnectionString"].ConnectionString;
            reportsTableAdapter = 
                new SqlDataAdapter("Select * from ReportLayout", new SqlConnection(connectionString));
            SqlCommandBuilder builder = new SqlCommandBuilder(reportsTableAdapter);
            reportsTableAdapter.InsertCommand = builder.GetInsertCommand();
            reportsTableAdapter.UpdateCommand = builder.GetUpdateCommand();
            reportsTableAdapter.DeleteCommand = builder.GetDeleteCommand();
            reportsTableAdapter.Fill(reportsTable);
            DataColumn[] keyColumns = new DataColumn[1];
            keyColumns[0] = reportsTable.Columns[0];
            reportsTable.PrimaryKey = keyColumns;
        }
        public override bool CanSetData(string url)
        {
            return GetUrls()[url].Contains("ReadOnly") ? false : true;
        }
        public override byte[] GetData(string url)
        {
            // Get the report data from the storage.
            DataRow row = reportsTable.Rows.Find(int.Parse(url));
            if (row == null) return null;

            byte[] reportData = (Byte[])row["LayoutData"];
            return reportData;
        }
        public override Dictionary<string, string> GetUrls()
        {
            reportsTable.Clear();
            reportsTableAdapter.Fill(reportsTable);
            // Get URLs and display names for all reports available in the storage.
            var v = reportsTable.AsEnumerable()
                  .ToDictionary<DataRow, string, string>(dataRow => ((Int32)dataRow["ReportId"]).ToString(),
                                                         dataRow => (string)dataRow["DisplayName"]);
            return v;
        }
        public override bool IsValidUrl(string url)
        {
            return true;
        }
        public override void SetData(XtraReport report, string url)
        {
            // Write a report to the storage under the specified URL.
            DataRow row = reportsTable.Rows.Find(int.Parse(url));
            if (row != null)
            {
                using (MemoryStream ms = new MemoryStream())
                {
                    report.SaveLayoutToXml(ms);
                    row["LayoutData"] = ms.GetBuffer();
                }
                reportsTableAdapter.Update(reportsTable);
            }
        }
        public override string SetNewData(XtraReport report, string defaultUrl)
        {
            // Append "1" if a new report name already exists.
            if (GetUrls().ContainsValue(defaultUrl)) defaultUrl = string.Concat(defaultUrl,"1");

            // Save a report to the storage with a new URL. 
            // The defaultUrl parameter is the report name that the user specifies.
            DataRow row = reportsTable.NewRow();
            row["ReportId"] = 0;
            row["DisplayName"] = defaultUrl;
            using (MemoryStream ms = new MemoryStream())
            {
                report.SaveLayoutToXml(ms);
                row["LayoutData"] = ms.GetBuffer();
            }
            reportsTable.Rows.Add(row);
            reportsTableAdapter.Update(reportsTable);
            // Refill the dataset to obtain the actual value of the new row's autoincrement key field.
            reportsTable.Clear();
            reportsTableAdapter.Fill(reportsTable);
            return reportsTable.AsEnumerable().
                FirstOrDefault(x => x["DisplayName"].ToString() == defaultUrl)["ReportId"].ToString();
        }
    }
}

Visual Basic
Imports DevExpress.XtraReports.UI
Imports System
Imports System.Collections.Generic
Imports System.Configuration
Imports System.Data
Imports System.Data.SqlClient
Imports System.IO
Imports System.Linq

Namespace SimpleWebReportCatalog
    Public Class CustomReportStorageWebExtension
        Inherits DevExpress.XtraReports.Web.Extensions.ReportStorageWebExtension

        Private reportsTable As New DataTable()
        Private reportsTableAdapter As SqlDataAdapter
        Public Sub New()
            Dim connectionString = ConfigurationManager.ConnectionStrings("catalogConnectionString").ConnectionString
            reportsTableAdapter = New SqlDataAdapter("Select * from ReportLayout", New SqlConnection(connectionString))
            Dim builder As New SqlCommandBuilder(reportsTableAdapter)
            reportsTableAdapter.InsertCommand = builder.GetInsertCommand()
            reportsTableAdapter.UpdateCommand = builder.GetUpdateCommand()
            reportsTableAdapter.DeleteCommand = builder.GetDeleteCommand()
            reportsTableAdapter.Fill(reportsTable)
            Dim keyColumns(0) As DataColumn
            keyColumns(0) = reportsTable.Columns(0)
            reportsTable.PrimaryKey = keyColumns
        End Sub
        Public Overrides Function CanSetData(ByVal url As String) As Boolean
            Return If(GetUrls()(url).Contains("ReadOnly"), False, True)
        End Function
        Public Overrides Function GetData(ByVal url As String) As Byte()
            ' Get the report data from the storage.
            Dim row As DataRow = reportsTable.Rows.Find(Integer.Parse(url))
            If row Is Nothing Then
                Return Nothing
            End If

            Dim reportData() As Byte = DirectCast(row("LayoutData"), Byte())
            Return reportData
        End Function
        Public Overrides Function GetUrls() As Dictionary(Of String, String)
            reportsTable.Clear()
            reportsTableAdapter.Fill(reportsTable)
            ' Get URLs and display names for all reports available in the storage.
            Dim v = reportsTable.AsEnumerable().ToDictionary(Function(dataRow) CInt(Fix(dataRow("ReportId"))).ToString(), Function(dataRow) CStr(dataRow("DisplayName")))
            Return v
        End Function
        Public Overrides Function IsValidUrl(ByVal url As String) As Boolean
            Return True
        End Function
        Public Overrides Sub SetData(ByVal report As XtraReport, ByVal url As String)
            ' Write a report to the storage under the specified URL.
            Dim row As DataRow = reportsTable.Rows.Find(Integer.Parse(url))
            If row IsNot Nothing Then
                Using ms As New MemoryStream()
                    report.SaveLayoutToXml(ms)
                    row("LayoutData") = ms.GetBuffer()
                End Using
                reportsTableAdapter.Update(reportsTable)
            End If
        End Sub
        Public Overrides Function SetNewData(ByVal report As XtraReport, ByVal defaultUrl As String) As String
            ' Append "1" if a new report name already exists.
            If GetUrls().ContainsValue(defaultUrl) Then
                defaultUrl = String.Concat(defaultUrl,"1")
            End If

            ' Save a report to the storage with a new URL. 
            ' The defaultUrl parameter is the report name that the user specifies.
            Dim row As DataRow = reportsTable.NewRow()
            row("ReportId") = 0
            row("DisplayName") = defaultUrl
            Using ms As New MemoryStream()
                report.SaveLayoutToXml(ms)
                row("LayoutData") = ms.GetBuffer()
            End Using
            reportsTable.Rows.Add(row)
            reportsTableAdapter.Update(reportsTable)
            ' Refill the dataset to obtain the actual value of the new row's autoincrement key field.
            reportsTable.Clear()
            reportsTableAdapter.Fill(reportsTable)
            Return reportsTable.AsEnumerable().FirstOrDefault(Function(x) x("DisplayName").ToString() = defaultUrl)("ReportId").ToString()
        End Function
    End Class
End Namespace

SimpleWebReportCatalog/Default.aspx

ASPx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="SimpleWebReportCatalog.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 runat="server">
    <title></title>
</head>
<body>
    <form id="CatalogForm" runat="server">
        <div>
            <h1>Report Catalog </h1>
            <p>Use the form below to manage reports in the catalog.</p>
        </div>
        <div>
            <asp:ListBox ID="reportsList" runat="server" Width="600px" Height="150px"></asp:ListBox>
        </div>
        <div>
            <asp:Button CssClass="catalogButton" ID="editButton" runat="server" Text="Edit"
                OnClick="EditButton_Click" />
            <asp:Button CssClass="catalogButton" ID="deleteButton" runat="server" Text="Delete"
                OnClick="DeleteButton_Click" />
        </div>
        <hr />
        <div>
            <asp:Button CssClass="catalogButton" ID="newReportButton" runat="server"
                Text="New Report" OnClick="NewReportButton_Click" />
        </div>


    </form>
</body>
</html>

SimpleWebReportCatalog/Default.aspx.cs(vb)

C#
VB.NET

C#
using System;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI.WebControls;
// ...


namespace SimpleWebReportCatalog {
    public partial class Default : System.Web.UI.Page {
        private DataTable reportsTable = new DataTable();
        private SqlDataAdapter reportsTableAdapter;

        protected void Page_Load(object sender, EventArgs e) {
            string connectionString = ConfigurationManager.ConnectionStrings["catalogConnectionString"].ConnectionString;
            reportsTableAdapter = new SqlDataAdapter("Select * from ReportLayout", new SqlConnection(connectionString));
            SqlCommandBuilder builder = new SqlCommandBuilder(reportsTableAdapter);
            reportsTableAdapter.InsertCommand = builder.GetInsertCommand();
            reportsTableAdapter.UpdateCommand = builder.GetUpdateCommand();
            reportsTableAdapter.DeleteCommand = builder.GetDeleteCommand();
            reportsTableAdapter.Fill(reportsTable);
            DataColumn[] keyColumns = new DataColumn[1];
            keyColumns[0] = reportsTable.Columns[0];
            reportsTable.PrimaryKey = keyColumns;

            if (!IsPostBack) {
                reportsList.DataSource = reportsTable;
                reportsList.DataMember = "Reports";
                reportsList.DataTextField = "DisplayName";
                reportsList.DataValueField = "ReportId";
                this.DataBind();
            }
        }


        protected void NewReportButton_Click(object sender, EventArgs e) {
            Session["DesignerTask"] = new DesignerTask {
                mode = ReportEdditingMode.NewReport,
            };
            Response.Redirect("Designer.aspx");
        }


        protected void EditButton_Click(object sender, EventArgs e) {
            ListItem selected = reportsList.SelectedItem;
            if(selected != null) {
                Session["DesignerTask"] = new DesignerTask {
                    mode = ReportEdditingMode.ModifyReport,
                    reportID = selected.Value
                };
                Session["ReportID"] = selected.Value;
                Response.Redirect("Designer.aspx");
            }
        }


        protected void DeleteButton_Click(object sender, EventArgs e) {
            ListItem selected = reportsList.SelectedItem;

            if (selected != null)
            {
                DataRow row = reportsTable.Rows.Find(int.Parse(selected.Value));
                if (row != null)
                {
                    row.Delete();
                    reportsTableAdapter.Update(reportsTable);
                    reportsTable.AcceptChanges();
                }
                reportsList.Items.Remove(reportsList.SelectedItem);
            }
        }
    }
}

Visual Basic
Imports System
Imports System.Configuration
Imports System.Data
Imports System.Data.SqlClient
Imports System.Web.UI.WebControls
' ...


Namespace SimpleWebReportCatalog
    Partial Public Class [Default]
        Inherits System.Web.UI.Page

        Private reportsTable As New DataTable()
        Private reportsTableAdapter As SqlDataAdapter

        Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
            Dim connectionString = ConfigurationManager.ConnectionStrings("catalogConnectionString").ConnectionString
            reportsTableAdapter = New SqlDataAdapter("Select * from ReportLayout", New SqlConnection(connectionString))
            Dim builder As New SqlCommandBuilder(reportsTableAdapter)
            reportsTableAdapter.InsertCommand = builder.GetInsertCommand()
            reportsTableAdapter.UpdateCommand = builder.GetUpdateCommand()
            reportsTableAdapter.DeleteCommand = builder.GetDeleteCommand()
            reportsTableAdapter.Fill(reportsTable)
            Dim keyColumns(0) As DataColumn
            keyColumns(0) = reportsTable.Columns(0)
            reportsTable.PrimaryKey = keyColumns

            If Not IsPostBack Then
                reportsList.DataSource = reportsTable
                reportsList.DataMember = "Reports"
                reportsList.DataTextField = "DisplayName"
                reportsList.DataValueField = "ReportId"
                Me.DataBind()
            End If
        End Sub


        Protected Sub NewReportButton_Click(ByVal sender As Object, ByVal e As EventArgs)
            Session("DesignerTask") = New DesignerTask With {.mode = ReportEdditingMode.NewReport}
            Response.Redirect("Designer.aspx")
        End Sub


        Protected Sub EditButton_Click(ByVal sender As Object, ByVal e As EventArgs)
            Dim selected As ListItem = reportsList.SelectedItem
            If selected IsNot Nothing Then
                Session("DesignerTask") = New DesignerTask With {.mode = ReportEdditingMode.ModifyReport, .reportID = selected.Value}
                Session("ReportID") = selected.Value
                Response.Redirect("Designer.aspx")
            End If
        End Sub


        Protected Sub DeleteButton_Click(ByVal sender As Object, ByVal e As EventArgs)
            Dim selected As ListItem = reportsList.SelectedItem

            If selected IsNot Nothing Then
                Dim row As DataRow = reportsTable.Rows.Find(Integer.Parse(selected.Value))
                If row IsNot Nothing Then
                    row.Delete()
                    reportsTableAdapter.Update(reportsTable)
                    reportsTable.AcceptChanges()
                End If
                reportsList.Items.Remove(reportsList.SelectedItem)
            End If
        End Sub
    End Class
End Namespace

SimpleWebReportCatalog/Designer.aspx

ASPx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Designer.aspx.cs" Inherits="SimpleWebReportCatalog.Designer" %>

<%@ Register Assembly="DevExpress.XtraReports.v24.2.Web.WebForms, Version=24.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
    Namespace="DevExpress.XtraReports.Web" TagPrefix="dx" %>
<!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 runat="server">
    <title></title>
    <link rel="stylesheet" href="Styles/DesignerStyle.css" />
    <script type="text/javascript">
        // The CustomizeMenuActions event handler.
        function CustomizeMenuActions(s, e) {
            var actions = e.Actions;
            // Register the custom Close menu command.
            actions.push({
                text: "Close",
                imageClassName: "customButton",
                disabled: ko.observable(false),
                visible: true,
                // The clickAction function recieves the client-side report model
                // and allows you to interact with the opened report.
                clickAction: function (report) {
                    window.location = "Default.aspx";
                },
                container: "menu"
            });
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <dx:ASPxReportDesigner ID="ASPxReportDesigner1" runat="server" ClientSideEvents-CustomizeMenuActions="CustomizeMenuActions">
        </dx:ASPxReportDesigner>
    </div>
    </form>
</body>
</html>

SimpleWebReportCatalog/Designer.aspx.cs(vb)

C#
VB.NET

C#
using System;
using DevExpress.DataAccess.Sql;

namespace SimpleWebReportCatalog {
    public partial class Designer : System.Web.UI.Page {
        protected void Page_Load(object sender, EventArgs e) {
            DesignerTask task = (DesignerTask)Session["DesignerTask"];
            if(task != null) {
                InitDesignerPage(task);
            }
            else if(!Page.IsCallback) {
                Response.Redirect("Default.aspx");
            }
        }

        private void InitDesignerPage(DesignerTask task) {
            BindToData();

            switch(task.mode) {
                case ReportEdditingMode.NewReport:
                    // Create a new report from the template.
                    ASPxReportDesigner1.OpenReport(new ReportTemplate());
                    break;
                case ReportEdditingMode.ModifyReport:
                    // Load a report from the report storage.
                    ASPxReportDesigner1.OpenReport(task.reportID);
                    break;
            }
        }

        private void BindToData() {
            SqlDataSource ds = new SqlDataSource("Northwind");
            CustomSqlQuery query = new CustomSqlQuery();
            query.Name = "Products";
            query.Sql = "SELECT * FROM Products";
            ds.Queries.Add(query);
            ds.RebuildResultSchema();
 
            ASPxReportDesigner1.DataSources.Add("Northwind", ds);
        }
    }
}

Visual Basic
Imports System
Imports DevExpress.DataAccess.Sql

Namespace SimpleWebReportCatalog
    Partial Public Class Designer
        Inherits System.Web.UI.Page

        Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
            Dim task As DesignerTask = DirectCast(Session("DesignerTask"), DesignerTask)
            If task IsNot Nothing Then
                InitDesignerPage(task)
            ElseIf Not Page.IsCallback Then
                Response.Redirect("Default.aspx")
            End If
        End Sub

        Private Sub InitDesignerPage(ByVal task As DesignerTask)
            BindToData()

            Select Case task.mode
                Case ReportEdditingMode.NewReport
                    ' Create a new report from the template.
                    ASPxReportDesigner1.OpenReport(New ReportTemplate())
                Case ReportEdditingMode.ModifyReport
                    ' Load a report from the report storage.
                    ASPxReportDesigner1.OpenReport(task.reportID)
            End Select
        End Sub

        Private Sub BindToData()
            Dim ds As New SqlDataSource("Northwind")
            Dim query As New CustomSqlQuery()
            query.Name = "Products"
            query.Sql = "SELECT * FROM Products"
            ds.Queries.Add(query)
            ds.RebuildResultSchema()

            ASPxReportDesigner1.DataSources.Add("Northwind", ds)
        End Sub
    End Class
End Namespace

SimpleWebReportCatalog/DesignerTask.cs(vb)

C#
VB.NET

C#
namespace SimpleWebReportCatalog {
    public enum ReportEdditingMode { NewReport, ModifyReport };

    public class DesignerTask {
        public ReportEdditingMode mode { get; set; }
        public string reportID { get; set; }
    }
}

Visual Basic
Namespace SimpleWebReportCatalog
    Public Enum ReportEdditingMode
        NewReport
        ModifyReport
    End Enum

    Public Class DesignerTask
        Public Property mode() As ReportEdditingMode
        Public Property reportID() As String
    End Class
End Namespace

SimpleWebReportCatalog/Global.asax.cs(vb)

C#
VB.NET

C#
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;

namespace SimpleWebReportCatalog {
    public class Global : System.Web.HttpApplication {

        protected void Application_Start(object sender, EventArgs e) {
            DevExpress.XtraReports.Web.ReportDesigner.DefaultReportDesignerContainer.EnableCustomSql();

            DevExpress.XtraReports.Web.Extensions.ReportStorageWebExtension.RegisterExtensionGlobal(new CustomReportStorageWebExtension());
            DevExpress.XtraReports.Web.ASPxReportDesigner.StaticInitialize();

        }

        protected void Session_Start(object sender, EventArgs e) {

        }

        protected void Application_BeginRequest(object sender, EventArgs e) {

        }

        protected void Application_AuthenticateRequest(object sender, EventArgs e) {

        }

        protected void Application_Error(object sender, EventArgs e) {

        }

        protected void Session_End(object sender, EventArgs e) {

        }

        protected void Application_End(object sender, EventArgs e) {

        }
    }
}

Visual Basic
Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Web
Imports System.Web.Security
Imports System.Web.SessionState

Namespace SimpleWebReportCatalog
    Public Class [Global]
        Inherits System.Web.HttpApplication

        Protected Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
            DevExpress.XtraReports.Web.ReportDesigner.DefaultReportDesignerContainer.EnableCustomSql()

            DevExpress.XtraReports.Web.Extensions.ReportStorageWebExtension.RegisterExtensionGlobal(New CustomReportStorageWebExtension())
            DevExpress.XtraReports.Web.ASPxReportDesigner.StaticInitialize()

        End Sub

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

        End Sub

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

        End Sub

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

        End Sub

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

        End Sub

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

        End Sub

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

        End Sub
    End Class
End Namespace

DevExpress Support Team

last modified a year ago

Modified: March 7, 2024 1:06 PM

Platform: Reporting ASP.NET Web Forms

Product: Reporting for Web Forms

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