Prevent the rtf, pdf and docx file download and convert the exported content to a string

Environment

Product

RadEditor for ASP.NET AJAX

Description

By design, the RadEditor ExportToPdf, ExportToRtf and ExportToDocx methods automatically convert and download the exported HTML content on the client as a file. See the solution below to learn how to obtain the converted content as a string on the server-side so that you can, for example, save it in another location as a physical file or in your database.

Solution

Here is an example of how to save the ExportOutput to a file on the server and prevent it from being sent to the client:

ASP.NET

<telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1" OnExportContent="RadEditor1_ExportContent" ContentFilters="DefaultFilters, PdfExportFilter">
</telerik:RadEditor>
<asp:Button runat="server" ID="Button1" Text="Export to PDF" OnClick="Button1_Click" />

C#

using System;
using System.IO;
using Telerik.Web.UI;

public partial class DefaultCS : System.Web.UI.Page
{
    protected void RadEditor1_ExportContent(object sender, EditorExportingArgs e)
    {
        string url = String.Format("~/{0}.pdf", RadEditor1.ExportSettings.FileName);
        string path = Server.MapPath(url);

        if (File.Exists(path))
        {
            File.Delete(path);
        }

        using (FileStream fs = File.Create(path))
        {
            Byte[] info = System.Text.Encoding.Default.GetBytes(e.ExportOutput);
            fs.Write(info, 0, info.Length);
        }

        e.Cancel = true;
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        RadEditor1.ExportToPdf();
    }
}

VB

Imports System.IO
Imports Telerik.Web.UI

Partial Class DefaultVB
    Inherits System.Web.UI.Page

    Protected Sub RadEditor1_ExportContent(sender As Object, e As EditorExportingArgs)
        Dim url As String = String.Format("~/{0}.pdf", RadEditor1.ExportSettings.FileName)
        Dim path As String = Server.MapPath(url)

        If File.Exists(path) Then
            File.Delete(path)
        End If

        Using fs As FileStream = File.Create(path)
            Dim info As [Byte]() = System.Text.Encoding.[Default].GetBytes(e.ExportOutput)
            fs.Write(info, 0, info.Length)
        End Using

        e.Cancel = True
    End Sub

    Protected Sub Button1_Click(sender As Object, e As EventArgs)
        RadEditor1.ExportToPdf()
    End Sub
End Class

See Also

• OnExportContent

• Import and Export to Word

• Export to DOCX and RTF

• Export to PDF

• Telerik Document Processing - RadWordsProcessing

• RadFlowDocument