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Communicating with MS Word

When a Silverlight 4 application is running with Elevated Permissions you can access COM objects which can be quite handy.  Here we have a small example showing how to open Word and set some text.

Word and Silverlight

It is important to include the following namespace when wanting to use these features:

using System.Windows.Interop;

You will also need to add a reference to the Microsoft.CSharp.dll which can be found in:

Program Files/Microsoft SDKs/Silverlight/V4.0/Libraries/Client/

<UserControl x:Class="SilverlightWord.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Background="White">
        <Button Content="Open MS Word" Width="100" Height="30" Click="Button_Click" />
    </Grid>
</UserControl>


using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Interop;
using System.Runtime.InteropServices.Automation;

namespace SilverlightWord
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            dynamic word = AutomationFactory.CreateObject("Word.Application");
            word.Visible = true;

            dynamic doc = word.Documents.Add();
            string insertText = "Hello Word from Silverlight 4!";
            dynamic range = doc.Range(0, 0);
            range.Text = insertText;
        }
    }
}


Like the Excel example we are using the new dynamic keyword present in C# 4, this allows us to grab an instance of the Word application.  To open Word and display it we use:

word.Visible = true;

We then create a new Word document and add some text, there is a whole host of possibilities with the new COM access capabilities of Silverlight 4.

Your Comments

michael posted

Dear author:


I do as you tell above, but the program(sliverlight project) don't work ,the error message is as following :


Could you tell me what  the proble is ?


===========================================


User code untreated System.NotSupportedException


   Message = The operation is not supported in the current context.


   StackTrace:


        Located MS.Internal.Error.MarshalXresultAsException (UInt32 hr, COMExceptionBehavior comExceptionBehavior)


        Located MS.Internal.XcpImports.CheckHResult (UInt32 hr)


        Located MS.Internal.ComAutomation.ComAutomationNative.CreateObject (String progID, IntPtr & nativeObject)


        Located MS.Internal.ComAutomation.ComAutomationServices.CreateObject (String progID, ComAutomationParamWrapService paramWrapService)


        Located System.Runtime.InteropServices.Automation.AutomationFactory.CreateObject (String progID)


        Located TCMS.Client.PrintTemplateManageControl.btnPreview_Click (Object sender, RoutedEventArgs e)


        Located System.Windows.Controls.Primitives.ButtonBase.OnClick ()


        Located System.Windows.Controls.Button.OnClick ()


        Located System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp (MouseButtonEventArgs e)


        Located System.Windows.Controls.Control.OnMouseLeftButtonUp (Control ctrl, EventArgs e)


        Located MS.Internal.JoltHelper.FireEvent (IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)


   InnerException:



-----------------------------------------------------------------


michael posted

what 's the problem?,the error is as following :


============================================



用户代码未处理 System.NotSupportedException


  Message=此操作在当前上下文中不受支持。


  StackTrace:


       位于 MS.Internal.Error.MarshalXresultAsException(UInt32 hr, COMExceptionBehavior comExceptionBehavior)


       位于 MS.Internal.XcpImports.CheckHResult(UInt32 hr)


       位于 MS.Internal.ComAutomation.ComAutomationNative.CreateObject(String progID, IntPtr& nativeObject)


       位于 MS.Internal.ComAutomation.ComAutomationServices.CreateObject(String progID, ComAutomationParamWrapService paramWrapService)


       位于 System.Runtime.InteropServices.Automation.AutomationFactory.CreateObject(String progID)


       位于 TCMS.Client.PrintTemplateManageControl.btnPreview_Click(Object sender, RoutedEventArgs e)


       位于 System.Windows.Controls.Primitives.ButtonBase.OnClick()


       位于 System.Windows.Controls.Button.OnClick()


       位于 System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)


       位于 System.Windows.Controls.Control.OnMouseLeftButtonUp(Control ctrl, EventArgs e)


       位于 MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)


  InnerException:


xyz posted

When I tried executing the above code, I am getting a exception call "NOT SUPPORTED EXCEPTION"


Mark Kamoski posted

Dear Author -



Please help.



Do you know how to input and output Word documents to and from Silverlight?



As your excellent example shows, it is possible to launch Word from a Silverlight application.



However, what I want to do is to be able to import and export Word documents to and from a Silverlight application



I could use DOC format or ODF format or RTF format or some other document format, as long as the document format supports full editing in Silverlight, with embedded images in the document.



How can that goal be achieved?



Please advise.



Thank you.



- Mark Kamoski


Badam Santhosh posted

When I tried executing the above code, I am getting a exception call "NOT SUPPORTED EXCEPTION".


Please help me out.


Zhao posted

I cann't find the namespace of "using System.Runtime.InteropServices.Automation;"


How to get?


sajen posted

how can i add an image to word?


balu posted

is it possible to save the contents of a textbox as .doc file


regards


balu


spam-dev posted

can i use in silverlight without OOB.


devsolution


h posted

how to set the word table style?



such as "oTable.Borders.OutsideLineStyle =  Word.WdLineStyle.wdLineStyleSingle;




there is no Word.WdLineStyle.wdLineStyleSingle


DavidH posted

Do you think you would be able to do the same thing with a fillable PDF form?


dan posted

Hi Vlad & lsym1985,



Yest, you must be running in OOB and have Elevated Permissions to use COM.



Thanks!


vlad posted

Hi,



This feature is available only in OOB mode?



Thanks


Vlad


lsym1985 posted

how I can access MSWordCOM,I have no Permission


 

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