Excel Add-In InvalidCOMObjectException On Shutdown

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  - 1
    - Monitor Dial-up Connection I am writing a smart client application that needs to monitor the users dial-up connection status. If the user disconnects, I need to prompt them to reconnect, or quit the application. I tried using the following WMI query wmiDialupDisconnect = New ManagementEventWatcher("SELECT * FROM MSNDIS_NotifyAdapterRemoval") but it does not work. Does anyone have any ideas how I can monitor a users dial-up connection status? Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81143
  - 2
    - Panel & keyboard focus I have a panel and some of my controls on it (each control is derived from Control, not from UserControl). I need to delete the selected control by pressing the Del key. How it can be done? Panel does not process any keyboard events. Also I don't want to delete any controls when focus is on the other controls of the form. So the scenario is something like this: 1. User clicks on some of my controls (panel receives focus) 2. User press Del key (control removes from panel) 3. User press Tab key (the focus is received by another control of the form, but not a control of the panel) 4. User press Del key (nothing happens) So the main question is how can I monitor focus state of the panel and process the keygboard input? Thank you very much. -- With best regards, Mikhail Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81138
  - 3
    - creating instance of a form from a variable Ususally we do like: SalesOrderForm fm = new SalesOrderForm(); where SalesOrderForm is a valid form in one of the assembly, that is SalesOrderForm is a type. How can I create an instance of SalesOrderForm when I do not know its type at run tyme? For example public openForm (string formName) { // here I might get "SalesOrderForm" or something else. If I get "SalesOrderForm" then I want to open it. Here, it will also be NOT known which assembly this for is in. } Thanks. -- Thanks for your help. Harshad Rathod Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81137
  - 4
    - Time of inactivity I have a vb.net application that starts with a login form. I would like to show it again after 5 minutes of inactivity of the application. Now, I use a timer and I start it in the application.idle event, but it doesn't work fine, because it shows the login form every 5 minutes of activity or inactivity of the application, without differences... How can I solve it ???? Many thanks nq Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81136
  - 5
    - DataGridView tab order Hello, I have a DataGridView with several columns. I would like to change the tab order for the columns but I can not find a way to do this. There is no property to set the tab order. I could listen for the tab-keypress but I can not find a method setting focus on a specific cell in the DataGridView. What I really would like to do is to skip a column when using Tab to navigate the grid. Is this possible at all? Cheers, Chris Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81135
  - 6
    - Showing verbs in a PropertyGrid at runtime I wished to show verbs in a PropertyGrid that is hosted in my own WinForms application. The normal way to show verbs is to provide a IDesigner implementation, however this only works when the PropertyGrid is hosted inside of MSDEV. This is my solution, comments please. using System; using System.ComponentModel; using System.ComponentModel.Design; namespace Main { /// <summary> /// The class enables an object, to display 'verbs' in the property grid. /// It should NOT be used for any object that will be edited with the /// property grid that is in MSDEV. It is only usefull for property grids that /// are hosted in a customer WinForms app. /// /// Override the Verbs::get method in sub classes to return the set of verbs /// for that class. /// </summary> [Serializable] public class VerbHelper : IComponent, ISite, IMenuCommandService { public VerbHelper() { } #region IComponent Members public event System.EventHandler Disposed; [Browsable(false)] public ISite Site { get { return this; } set { throw new Exception("I hope this is never called!"); } } #endregion #region ISite Members [Browsable(false)] public IComponent Component { get { return this; } } [NonSerialized] Container mContainer = null; [Browsable(false)] public IContainer Container { get { if (mContainer == null) mContainer = new Container(); return mContainer; } } [Browsable(false)] public bool DesignMode { get { return false; } } [Browsable(false)] string ISite.Name { get { return "My Name"; } set { } } #endregion #region IServiceProvider Members public object GetService(Type serviceType) { if (serviceType == typeof(IMenuCommandService)) return this; return null; } #endregion #region IDisposable Members public void Dispose() { if (Disposed != null) Disposed(this, EventArgs.Empty); } #endregion #region IMenuCommandService Members public void AddCommand(MenuCommand command) { } public void RemoveVerb(DesignerVerb verb) { } public void RemoveCommand(MenuCommand command) { } public MenuCommand FindCommand(CommandID commandID) { return null; } public bool GlobalInvoke(CommandID commandID) { return false; } public void ShowContextMenu(CommandID menuID, int x, int y) { } public void AddVerb(DesignerVerb verb) { } [Browsable(false)] virtual public DesignerVerbCollection Verbs { get { //override this in a sub class to return your verbs. return new DesignerVerbCollection(); } } #endregion } } Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81133
  - 7
    - Can't import .OCX assembly into Web Matrix Project. Hi, I am using Web Matrix Project as .NET programming environment. Can you show me detailed steps how to import the .ocx library into the Web Matrix Project. I can't seem to be able to import other assembly than .dll, .exe or .mcl . I am pretty new to the .NET programming environment, and may be missing something. I can see the file in C:\Program Files\Common Files\Tops\xyzxyz.ocx , but I can't find a way to import it into the Web Matrix Project to see all Methods and Properties of the assembly. Thank you for any help. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81130
  - 8
    - create object dynamically hi guys, i just have a doubt about this one... i have several class that just basically do CRUD operations (create, read, update, delete) now for example on my delete function, i want to create objects dynamically based on TableName.. this is my current line of code Public Sub ActionButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Select Case TableName.ToLower Case "employee" Dim o As New BusinessLogic.EmployeeController o.Delete(1) Case "gender" Dim o As New BusinessLogic.GenderController o.Delete(1) Case "more of this on my code" Dim o As New BusinessLogic.[other]Controller o.Delete(1) End Select End Sub now i want to make this line of code shorter, maybe by doing this Public Sub ActionButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Dim o As New BusinessLogic.[TableName]Controller o.Delete(1) End Select End Sub note the [TableName] here is a property i created, so passing a EMPLOYEE as the TableName will Dim o As New BusinessLogic.EmployeeController and then i can call the delete function, just want to load object dynamically here.. i hope i made my point here clear... is it anyway possible? TIA! (if i have 8 hours to chop down a tree, i'd spend 6 sharpening my ax) Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81127
  - 9
    - Mouse event handlers I am writing a 3D graphics demo for my students, and thought I had a really slick solution for handling the interaction with the mouse. There are several ways to interact with a 3D world, and I have attached a mouseDown event handler to my OpenGL panel (control). What I want to do, is based upon which mouse button was pressed associate the proper mouseMove event handler with the control. OK, so I have a From with several controls, including a few OpenGL controls I created. I attached the mousedown to an OpenGL control. In the callback I want to associate the MouseMove and MouseUp event handlers. I first tried something like this in the MouseDown event handler: m_MouseMoveDelegate = new MouseEventHandler( camera.Trackball ); this.MouseMove += m_MouseMoveDelegate; m_MouseUpDelegate = new MouseEventHandler( My_MouseUp ); this.MouseUp += m_MouseUpDelegate; This associates the mouse handlers with the entire Form though, not the control. I am rather clueless on the sender semantics. I tried casting it to my UserControl (OpenGLPanel), but that led to very bad behavior. Not sure why. I also need to retained the mouse position of the mouse down event. The problem above is either the "this" identifiers, or trying to save the mouse position from the mouse down event. Casting this to screen space provides somewhat better behavior, but not ideal. Questions: 1) Is there something fundamentally wrong with this design? 2) Is the sender one of the controls I registered the MouseDown event handler to? 3) In particular, is it the control in which I pressed the mouse? 4) Can I associate a MouseMove event to the sender? Note, I do not want to embed my form logic in here and test for which control, etc. FYI. The mouseUp event simply removes the event handlers: // Disconnect the MouseEventHandler this.MouseMove -= m_MouseMoveDelegate; this.MouseUp -= m_MouseUpDelegate; Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81122
  - 10
    - Getting the keyboard state in MouseMove In my windows app, I have an event handler for the mouse move, and want to allow for constrained interaction using the shift or control keys. I can not figure out how to get the state of the shift, control or alt key modifiers for the mouse. The mouseEventArgs does not seems to have anything, and casting the sender to a control and trying to inquire has led to compiler errors. This functionality exists in the Drag and Drop event args, but not the mouse. How do we determine the key modifiers for the mouse in .NET? Roger Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81120
  - 11
    - Trip to Disney GET YOUR TRIP TRIPS TO DESNEY TRIPS TO HAWAII http://travelexpert2004.us http://travelexpert2004.biz http://gotraveling85.us Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81119
  - 12
    - paper size and font for roll paper Hi I designing a report with Crystal (C#, winforms), my problems is how to set the paper size for the width of the roll 3 inches and tall continuous large. 2.- There is only 40 char columns and monospace font, how to I set the designer area for that purpose. TIA Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81118
  - 13
    - How can I custom draw a window title bar Hi All I've tried without success on google and google groups to find the answer to this, but without success - but I do recall it being discussed... In my application, if I want a slightly modified Title Bar on some forms - eg so that it is coloured yellow rather than using the system scheme, is there a way that I can do this? I know I could do FormBorderStyle = None, and draw my own window including my own title bar (lots of references how to do this). But I don't want that (well if it's what I have to do, then I guess I will!) I just want a standard title bar with a different colour. Any ideas? Nigel Armstrong Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81117
  - 14
    - how to drag from RichTextBox? hi all when i drag from my RichTextBox to any other control in windows, it works nice. however, if i mark it as 'readonly= true' then it does NOT work. that is, on the first drag operation. in the second drag operation and all proceeding drag operations, it works nice. however, this is only true if i set the RichTextBox to be 'readonly= true' at runtime. if i change it to be 'readonly= true' at design time. IT NEVER EVER allows drag to succeed! this seems to me to be an authentic bug in the dot net/ visual studio. has someone else experienced this problem? is there work-around? assaf Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81116
  - 15
    - Round Number Function Hi, Round Number Function You can download a small example: Watch and copy examples of Source Code in VB.NET yulyos4vbnet@yahoo.com http://www.geocities.com/yulyos4vbnet Have a nice day From: yulyos@yahoo.com http://www.geocities.com/yulyos Development and writing software programs Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81111
  - 16
    - Dynamic Properties. What the point? I have been playing around with the "Dynamic Properties" of the controls and for the life of me, I can't figure out why would anybody care about using feature. It looks like the only things that this feature does is store and retrieve values from the app.config file! The thing is that, there is already a way to do this during runtime!! In fact, that's what happens once the app starts running under "Windows Form Designer generated code"!! Other than just some kind of time saver (arguably) is there something that I am missing here, is there some big benefit on using this feature that I don't know about? Thank you. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81110
  - 17
    - Unresponsive UI during lengthy processing Ok, I'll admit it, I'm a winforms newbie. I'm writing an image processing program that, by its nature, gets into some fairly lengthy processing cycles. As long as I don't touch the UI while it's working, don't alt-tab away and come back, don't minimize and restore--in short, as long as I sit there like a dope waiting for the processing to be completed, things are fine. My UI updates itself at the right times with progress bar updates, updates to the PictureBox control that has the image in it, and even updates to a RichTextBox that shows some debugging type output. But the second I do anything at all (even just dragging the window around), the entire UI stops showing any updates. If I bring some other app on top of mine and then bring mine to the front, it doesn't re-draw at all, leaving me with an empty white box where my UI should be. Obviously, this is irritating as heck because frequently I'd like to be doing other things, like checking my e-mail and stuff, while my program is working. I realize that there is probably some general principle of writing winforms apps so the UI stays responsive no matter what the rest of the app is doing, but I'm cluless as to what it might be. Worse, being new to windows programming in general (having finally taken the plunge out of the crusty world of the command line app), I have no idea what I should be searching for in the Visual Studio documentation. Any hints, even just a pointer to the relevent docs, would be greatly appreciated! Thanks. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81105
  - 18
    - XML editor component Hi Im planning to develope a open source editor for editing some special xml files. I guess its quite a task (read time-consuming) to develope my own xml editor from scratch. I need tag highligtning, endtag autocomplete and just plain texteditor capeablities. Anyone know of a free xmleditor component with source code wich Ican use as a starting place? (The product will remain open source of all time) The next best thing would be a tutorial making such an editor...or hints, suggestions and best practices. Looking forward to hear you suggestions Regards Anders Jacobsen, Denmark Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81103
  - 19
    - Convert ascii code to string I am working on an app that is receiving hex numerical values via serial connection. I am now to the point that I have converted each byte into its ascii code value. Could comeone please tell me how to convert 48 to 0, 49 to 1, etc? I need to display this in a textbox. Thanks in advance for any and all help. -- Message posted via http://www.dotnetmonster.com Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81100
  - 20
    - DataGrid with auto live update? Hi all, Working with dataset and datagrid in disconnected mode may improve scalability. However, this means that multi clients instances are viewing 'out of date' local copies if changes were made by someone else to back end database. In situation where I need a datagrid to auto refresh, synchronize to back-end database, without having to a refresh button, so that all users may see what have been changed, in datagrid. What is the best approach? Thanks. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81098
  - 21
    - Which Group for Webforms Can anybody tell me which is the most appropriate news group for questions on Webforms rather than Windowsforms? Many thanks. -- Jeff Gaines Damerham Hampshire UK Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81097
  - 22
    - DataBind DBNull Image I am using forms databinding to show an image in the database in a pictureBox. To do this I am handling the Format event to convert the byte [] to a bitmap: Binding bind = new System.Windows.Forms.Binding("Image", this.dataSet1, "Employee.Image"); bind.Format += new ConvertEventHandler(Image_Format); private void Image_Format(object sender, ConvertEventArgs e) { if (e.Value is System.DBNull) { /// How do we handle the DBNull??? return; } // e.Value is the original value Byte[] img = (Byte[]) e.Value; MemoryStream ms = new MemoryStream(); ms.Write(img, 0, img.Length); Bitmap bmp = new Bitmap(ms); ms.Close(); // Writes the new value back e.Value = bmp; } My problem occurs when the value in the database is NULL. if I don't do anything then I get an Invalid cast from System.DBNull to System.Drawing.Image. I also tried : e.Value = (Bitmap) null; but i get a memory exception Thanks Jeronimo Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81091
  - 23
    - Data Find Row and Databinding I have create a form that is databound to a dataset. I am able to move through the dataset by using the BindingManagerBase.Position. However, I need to be able to jump to a specific row in my dataset. I am finding the desired row in the dataset by using the Find Method in the DataRowCollection but don't know how to set that row to be the current row used by the BindingManager. Thanks, Jeronimo Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81090
  - 24
    - Selecting ListView item with Windows Message Hi, I'm trying to select all listView items with SendMessage API function and LVM_SETITEMSTATE windows message ... hWnd = listView.handle; index = -1; ... LVITEM lvItem = new LVITEM(); lvItem.mask = LVIF_STATE; lvItem.stateMask = LVIS_SELECTED; lvItem.state = LVIS_SELECTED; IntPtr pointer = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(LVITEM))); Marshal.StructureToPtr(lvItem, pointer, true); SendMessage(hWnd, LVM_SETITEMSTATE, index, pointer); Marshal.FreeHGlobal(pointer); ... but this code doesn't work as it should... it selects all items for a short while, but only after I click ListView control with my mouse which of course move selection to the item I click on what can be wrong? (please do not suggest other way of selecting items - I want to do that with LVM_SETITEMSTATE message) Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81082
  - 25
    - [SURVEY] Windows Forms developer feedback wanted Hello, We want to learn about your interest in building windows applications using declarative or markup-based programming techniques. Microsoft will enable some of these technologies as part of Longhorn/Avalon, but is less focused on bringing these new ideas to Windows Forms developers, and the solution will only work under .NET 2.0. A short survey is available here: http://www.xamlon.com/company/surveys/winforms In thanks for filling out this survey, we will send you a $5 Amazon gift certificate. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81077
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  - 1
    - CheckListBox on a TabControl... wierd behaviour hi I have a tabcontrol with few pages. 2 of the tab pages have one checklistbox each, when I flip through the tab pages, the checkboxlist loses the check states. I thought, the tab control may not be painting them properly. but that is not the case. the check states are lost by the checklistbox control. anly clue? warm regards Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81076
  - 2
    - Datagrid doesn't reflect changes in datasource Dear all, when I fill my dataset the datagrid doesn't reflect these changes. Here's the scenario - add new form - add datagrid to form - add dataset to form - bind datagrid to dataset (using datagrid properties) - next code is generated in InitializeComponent() -> dataset is created, datasource is set. - next I fill the dataset (Form1_Load) - run -> datagrid is empty. I don't like to use dataGrid.Datasource = ... again. Any ideas? RenÃ© Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81075
  - 3
    - XML and the Dataset Hi I have a XML File and a Dataset <?xml version="1.0" standalone="yes"?> <Tank xmlns="http://www.tempuri.org/Tank.xsd"> <Tank> <TankName>Tank One</TankName> <TankLocation>Lounge Room</TankLocation> <TankSize>140 Litres / 40 Gallons</TankSize> <TankContents>FOWLR (Reef Tank)</TankContents> <TankLightingType>Fluoros</TankLightingType> <TankFilterType>Canister</TankFilterType> <TankSkimmerType>Side Mount</TankSkimmerType> <TankDescription>corner mounted</TankDescription> <TankStartDate>2004-11-10</TankStartDate> </Tank> </Tank> dim dsTestDataset as new Dataset dsTestDataset.ReadXML("test.xml") Now it is loaded. Thats fine. How can I access the for example TankSize direct from the Dataset. dim strTankSize as String = dsTestDataset???????.??? I have tried data views and gotten myself very confused. Thx *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81070
  - 4
    - Detecting Dialogs from other application I have some C# code that runs via the VSAEngine under a host program. There is a situation where the host program will display a dialog that will stop execution of my code. There is no API available to me to prevent this. Is there a way by either looking at windows messages or a hook, that I could detect when this dialog is displayed? Once I detect it, I know how to send it keystrokes so that it will dismiss. I haven't done any C/C++ windows programming, so if there is a way, I would appreciate some pointers. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81069
  - 5
    - Custom double buffer Hi I've got some problem doing double buffer. Here is my problem: I've got custom control on which i paint some data (chat messages, lets call it ChatControl), this control is puted on a scrollable panel. Of course i've set right styles on a ChatControl: //styles this.SetStyle(ControlStyles.AllPaintingInWmPaint, true); this.SetStyle(ControlStyles.DoubleBuffer, true); this.SetStyle(ControlStyles.UserPaint, true); this.SetStyle(ControlStyles.ResizeRedraw, true); Everything is ok,but i've got some performance problems. Chat messages arrived in every 5 seconds, and i call on ChatControl Refresh(), so my OnPaint method is called - and thats ok. But control is repainted more times than on in every 5 second refresh: user used scroll, or something like that. And now i want to made some additional double buffer, because i want to draw remembered graphic (thru bitmap), than draw it again - because its neccesery when i only refresh control. I know i should do something like this: Bitmap bmp = new Bitmap(this.ClientRectangle.Witdh, this.ClientRectangle.Height); Graphics g = Graphics.FromImage(bmp); and than i should draw on g but there is a "small" problem - beacuse i know control size after i draw something (thats depends at chat messages count)! so how i can get a bitmap from my base graphics or how to create bitmap that will resize automaticly to my graphic size ? Or .... maybe somebody got any idea? regards kuba florczyk Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81067
  - 6
    - How to FTP via VPN to sites with real adresses on different IP's ? Hi, I am using Windows 2003 Server. The VPN works fine, but I want to FTP through the VPN so the connection is encrypted. The problem is each of my IIS sites has a real Internet address specified, w.x.y.z. So when the VPN comes up using a private IP, I can't connect to any of the FTP sites using the VPN server's IP, 10.10.10.2. Could you give me specific directions how to deal with this? Thank you for your help. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81066
  - 7
    - ClearType locally I would like to provide the option to enable ClearType in a RichTextBox, even when the system-wide setting is disabled. No matter what I do, my RTF box always repaints its text according to the system settings. What can I do? cloa Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81065
  - 8
    - Drag and Drop Message from outlook I have made a little app that accepts drag and drop from all sources but when I drop a Outlook Email the FileContents is always null. Is there any Microsoft documentation on how to correctly access the .msg using drag and drop from outlook? BRGDS Martin Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81064
  - 9
    - Forms jerking when being dragged I'm writing a smart client application using VB.NET for which some MDI child forms I have jerk significantly when being dragged around the screen while others glide smoothly. I've no idea what causes the difference in behaviour. What should I look for? Thanks Daft.Geezer Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81063
  - 10
    - Toolbar buttons have blue line at bottom edge of images Windows Forms App Gurus, I have a toolbar on a form. Some of the buttons have images on them. Buttons with images have a blue line that is like a focus indicator at the bottom edge of the image (all toolbarbuttons with images have this). I can't figure out how to get this turned off. Tried setting CanFocus to off but it complains it is readonly. Can someone give me a clue please? Thanks Chuck Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81061
  - 11
    - PLEASE HELP - Using URL with EventLog I'm trying to write a url as a hyperlink in the Eventlog, does anyone know if this is possible ?? I have found the following site that confirms this can be done, but he doesn't say how !!! http://www.codeproject.com/dotnet/evtvwr.asp Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81059
  - 12
    - XP style dll Hi all, I was wondering how one can make a dll to have a windows XP style. Main application has it (via .mainfest file), but mine dll don't (even though I use it in this application). Is there something I should add to it, so that it will look like an XP style dll. Thanks for any help Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81057
  - 13
    - problem in calling winapi that use pointer to struct from c# hi am using panel with autoscroll , now i want to call window api BOOL GetScrollInfo(HWND hwnd, int fnBar, LPSCROLLINFO lpsi)); now am doing like tht unsafe public static extern bool GetScrollInfo(uint hwnd,uint SB_HORZ, SCROLLINFO* si ); but it causes a problem in lasst parameter , pls help -- amit bharadwaj Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81055
  - 14
    - Trap KeyDown in MDI form for all children win I need to trap F1 key in MDI form for all child windows F1 Key is can trapped only by KeyUp event. so i cannot use with menu shortcut for F1 have simple way to do that, or I must use with: Application.AddMessageFilter() Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81052
  - 15
    - PLEASE HELP: URL as a hyperlink in Eventlog I'm trying to write a url as a hyperlink in the Eventlog, does anyone know if this is possible ?? I have found the following site that confirms this can be done, but he doesn't say how !!! http://www.codeproject.com/dotnet/evtvwr.asp Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81050
  - 16
    - My User Controls Tab disappeared Hello, I have seen alot of issues regarding controls not appearing in the "My User Controls" tab. My problem is that this tab is not shown at all. My colleuges got this tab when installing VS, but I did not. I have tried to create one myself but no controls are added (yes, I have created the controls correctly). Any suggestion on how I can make the default "My user .." appear? awiklund Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81048
  - 17
    - Table Control Is there a table control i can use in Windows Form? Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81047
  - 18
    - How to trap F5 in Windows Forms? Hi All, I have created a simple form that displays a simple message. But the message cant seem to be displayed? Any reason why? Below is my code. private void Form1_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e) { if(e.KeyCode == Keys.F5) { MessageBox.Show("It is done"); } } Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81043
  - 19
    - Do you always call your UI on the right thread? Well, there is an easy way to find out: I uploaded an app (profiler style) that checks all your calls to ensure that control derived objects are never called from a thread that did not create them. http://www.gotdotnet.com/Community/UserSamples/Details.aspx?SampleGuid=3cba64b4-3765-49ba-8a05-11d247195e65 Looking for comments Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81040
  - 20
    - Create custom Windows Forms controls Hello, I know how to program with the .NET Framework, but I don't know how to program custom controls. This is really the only thing I don't know how to do. A link to a tutorial or a "how-to" is requested. Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81023
  - 21
    - Microsoft Office XP Web Components Hi, I need to use the Spreadsheet control on my Visual Basic .Net proyect. I have added the reference by doing the following: Project/Add Reference/COM/Microsoft Office XP Web Components It is supposed that the control should appear on my Toolbox, but it does not. What am I doing wrong? Thanks in advance for the help!!!! Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81021
  - 22
    - handling the death of a COM app from .NET I have a winforms app that creates a COM application(namespace imported through references). I would like to be able to know when the COM application is closed by the user in the .NET app. The COM app does not fire an event when it's closing - there is no published event. Is there a way to find out if the COM app is no longer available or not? When the COM app is dead, the reference in .NET app is still valid, that is to say, it's not null. So when I try to access a method or a property using the reference, I get a COMException - RPCServer is not available. Additionally, when I try to closed the COM app, I get a messagebox saying that there are active COM objects in the application(in the COM app). I am assuming that this is a feature of the COM app which I didn't write. Can someone explain why this happens? I am not very familiar with COM internals. I would think the reference is from .NET to COM not the other way around. Thanks much. Jiho Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81020
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    - How to use Form.GetChildAtPoint Hi. I have placed a panel at location (0,0) on a form. With: Control ctrl = this.GetChildAtPoint(new Point(50, 50)); i try to find the panel, but ctrl is always null. What is my problem? best regards and thanks, Jan Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81017
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    - how to set thump position in autoscroll of panel hi all i am using a panel with autoscroll , now i want to set the thump position myself on clicking scroll-bar buttons or page up or page down buttons . pls help -- amit bharadwaj Tag: Excel Add-In InvalidCOMObjectException On Shutdown Tag: 81013

Hi Guys,

I've created an Office.CommandBarPopup Add-In for Excel that launches a
Windows Form as a modal dialog when a button within the CommandBarPopup is
clicked.

However, when Excel is shut down I am receiving an InvalidCOMObjectException
error. This is even happening even though the form has no embedded controls.
It doesn't happen if the dialog isn't instantiated.

Is there a procedure that needs to be followed when destroying forms from
Excel add-ins?

Best regards,

Jim...

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