DataViewBase.ExportToMht(Stream) Method

Exports a grid to the specified stream in MHT format.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v19.1.Core.dll

Declaration

C#

public void ExportToMht(
    Stream stream
)

VB.NET

Public Sub ExportToMht(
    stream As Stream
)

Parameters

Name	Type	Description
stream	Stream	A Stream object to which the created MHT file should be sent.

Remarks

To display the Print Preview of the grid, use the DataViewBase.ShowPrintPreview and DataViewBase.ShowPrintPreviewDialog methods. To print the grid, use the DataViewBase.Print and DataViewBase.PrintDirect methods.

To learn more, see Printing.

Note

The grid can be previewed, printed and exported only if the DXPrinting Library is available. You should manually add the reference to the DevExpress.Xpf.Printing.v19.1 assembly.

Example

This example shows how to preview and print/export the grid content. The grid is printed and exported using the built-in capabilities.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-print-and-export-the-grid-e1669.

IssueList.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DXGrid_PrintGrid {
    public class IssueList {
        public List<IssueDataObject> List { get; private set; }
        public IssueList() {
            List = GetIssueList();
        }
        List<IssueDataObject> GetIssueList() {
            List<IssueDataObject> data = new List<IssueDataObject>();
            data.Add(new IssueDataObject() { IssueName = "Transaction History", IssueType = "Bug", IsPrivate = true });
            data.Add(new IssueDataObject() { IssueName = "Ledger: Inconsistency", IssueType = "Bug", IsPrivate = false });
            data.Add(new IssueDataObject() { IssueName = "Data Import", IssueType = "Request", IsPrivate = false });
            data.Add(new IssueDataObject() { IssueName = "Data Archiving", IssueType = "Request", IsPrivate = true });
            return data;
        }
    }
    public class IssueDataObject {
        public string IssueName { get; set; }
        public string IssueType { get; set; }
        public bool IsPrivate { get; set; }
    }
}

Window1.xaml

<Window x:Class="DXGrid_PrintGrid.Window1" Title="Window1" Height="300" Width="450"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <dxg:GridControl x:Name="grid" AutoGenerateColumns="AddNew" ItemsSource="{Binding List}">
            <dxg:GridControl.View>
                <dxg:TableView x:Name="view" AutoWidth="True" />
            </dxg:GridControl.View>
        </dxg:GridControl>
        <WrapPanel Grid.Row="1" Orientation="Horizontal">
            <Button Click="PreviewGrid">
                Show Print Preview
            </Button>
            <Button Click="ExportToXls">
                Export to MS Excel
            </Button>
            <Button Click="ExportToCsv">
                Export to CSV
            </Button>
            <Button Click="ExportToPng">
                Export to an image
            </Button>
        </WrapPanel>
    </Grid>
</Window>

Window1.xaml.cs

using System.Collections.Generic;
using System.Windows;
using System.Windows.Documents;
using DevExpress.Xpf.Grid;
using DevExpress.Xpf.Printing;

namespace DXGrid_PrintGrid {
    public partial class Window1 : Window {
        public Window1() {
            InitializeComponent();
            DataContext = new IssueList();
        }
        private void PreviewGrid(object sender, RoutedEventArgs e) {
            view.ShowPrintPreviewDialog(this);
        }
        private void ExportToXls(object sender, RoutedEventArgs e) {
            view.ExportToXlsx(@"d:\grid_export.xlsx");
        }
        private void ExportToCsv(object sender, RoutedEventArgs e) {
            view.ExportToCsv(@"d:\grid_export.csv");
        }
        private void ExportToPng(object sender, RoutedEventArgs e) {
            view.ExportToImage(@"d:\grid_export.png");
        }
    }
}

Window1.xaml.vb

Imports System.Collections.Generic
Imports System.Windows
Imports System.Windows.Documents
Imports DevExpress.Xpf.Grid
Imports DevExpress.Xpf.Printing

Namespace DXGrid_PrintGrid
    Partial Public Class Window1
        Inherits Window

        Public Sub New()
            InitializeComponent()
            DataContext = New IssueList()
        End Sub
        Private Sub PreviewGrid(ByVal sender As Object, ByVal e As RoutedEventArgs)
            view.ShowPrintPreviewDialog(Me)
        End Sub
        Private Sub ExportToXls(ByVal sender As Object, ByVal e As RoutedEventArgs)
            view.ExportToXlsx("d:\grid_export.xlsx")
        End Sub
        Private Sub ExportToCsv(ByVal sender As Object, ByVal e As RoutedEventArgs)
            view.ExportToCsv("d:\grid_export.csv")
        End Sub
        Private Sub ExportToPng(ByVal sender As Object, ByVal e As RoutedEventArgs)
            view.ExportToImage("d:\grid_export.png")
        End Sub
    End Class
End Namespace

IssueList.vb

Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text

Namespace DXGrid_PrintGrid
    Public Class IssueList
        Private privateList As List(Of IssueDataObject)
        Public Property List() As List(Of IssueDataObject)
            Get
                Return privateList
            End Get
            Private Set(ByVal value As List(Of IssueDataObject))
                privateList = value
            End Set
        End Property
        Public Sub New()
            List = GetIssueList()
        End Sub
        Private Function GetIssueList() As List(Of IssueDataObject)
            Dim data As New List(Of IssueDataObject)()
            data.Add(New IssueDataObject() With {.IssueName = "Transaction History", .IssueType = "Bug", .IsPrivate = True})
            data.Add(New IssueDataObject() With {.IssueName = "Ledger: Inconsistency", .IssueType = "Bug", .IsPrivate = False})
            data.Add(New IssueDataObject() With {.IssueName = "Data Import", .IssueType = "Request", .IsPrivate = False})
            data.Add(New IssueDataObject() With {.IssueName = "Data Archiving", .IssueType = "Request", .IsPrivate = True})
            Return data
        End Function
    End Class
    Public Class IssueDataObject
        Public Property IssueName() As String
        Public Property IssueType() As String
        Public Property IsPrivate() As Boolean
    End Class
End Namespace