Hi,

I have created an Outlook Addin which needs to cancel the write/send
event on certain modifications made in Tasks through the inspector
window.

So, if I create a Task in Outlook, Assign it, and Send it, only Write
event is triggered (that too twice). If I cancel the event as
demonstrated in the code below, Send button gets removed from the
inspector window and 'Assign Task' and other buttons gets disabled.

Following is the sample code written in VSTO 2005 SE:

using System;
using System.Windows.Forms;
using Microsoft.VisualStudio.Tools.Applications.Runtime;
using Outlook = Microsoft.Office.Interop.Outlook;
using Office = Microsoft.Office.Core;

namespace OutlookAddIn3
{
public partial class ThisAddIn
{
private Outlook.Inspectors m_insps;
private Outlook.TaskItem m_task;
private
Microsoft.Office.Interop.Outlook.ItemEvents_10_SendEventHandler
m_sendHandler;

private void ThisAddIn_Startup(object sender, System.EventArgs
e)
{
m_insps = Application.Inspectors;
m_insps.NewInspector += new
Microsoft.Office.Interop.Outlook.InspectorsEvents_NewInspectorEventHandler(m_insps_NewInspector);
}

void
m_insps_NewInspector(Microsoft.Office.Interop.Outlook.Inspector
Inspector)
{
#region Tasks
Outlook.TaskItem task = Inspector.CurrentItem as
Outlook.TaskItem;
if (task != null)
{
m_task = task;
m_task.Write += new
Microsoft.Office.Interop.Outlook.ItemEvents_10_WriteEventHandler(m_task_Write);
m_sendHandler = new
Microsoft.Office.Interop.Outlook.ItemEvents_10_SendEventHandler(ThisAddIn_Send);
((Outlook.ItemEvents_10_Event)m_task).Send +=
m_sendHandler;
}
#endregion
}

void ThisAddIn_Send(ref bool Cancel)
{
MessageBox.Show("Send");
Cancel = true;
}

void m_task_Write(ref bool Cancel)
{
MessageBox.Show("Save");
Cancel = true;
}

private void ThisAddIn_Shutdown(object sender,
System.EventArgs e)
{
}

#region VSTO generated code

/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InternalStartup()
{
this.Startup += new
System.EventHandler(ThisAddIn_Startup);
this.Shutdown += new
System.EventHandler(ThisAddIn_Shutdown);
}

#endregion
}
}

I want that when I cancel the event, it should come back to the
inspector window without any modifications done to the current state
of the inspector window.

Could somebody please help in this regards?

Thanks,