ObjectDisposedException - cannot access a disposed object called "Icon"

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  - 1
    - DataGrid new Column Style not creating new rows correctly Dear All I am having trouble with my datagrid custom column style which shows a combo box. I have derived from a DataGridTextBoxColumn for simplicity. It is almost working exactly how I would like it to, but I have problems with the new row behaviour. I would really like it to behave in the same way as the DataGridTextBoxColumn when you work with new rows. Specifically, that means 1. If you click in the new row at the bottom of the data grid and then click away without editing the contents you do not get a new row added to the data source or the datagrid 2. If you click in the new row and edit the contents the changes are propogated to the underlying data source, and when you change the value you also get a "new" new row beneath the one you started editing in the data grid. I am having particular trouble with getting the datagrid to extend down and add the new, new row insertion at the bottom, beneath the new row that the user has just added. I hope this makes sense. If you play around with a data gird you can see what I mean from the point of view of the normal text box column style. What I want to know is how this is implemented so that I can replicate it in my code. I have a call to base.edit in my edit command but that is not enough ... If anyone can help me shed some light on this I would be very grateful. Regards David Smith Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100947
  - 2
    - Viewport Question and Something not implementent? Hello, I am using .NET 2.0 and building a custom control. There are multiple graphics elements that I would like to render on the surface. When drawn together they form the complete control image but need to be managed separately because they might have different scale, units, move indendently, and are updated at different times for different reasons. My idea was to maintain several buffers or graphics objects that I could use draw into and load images as they needed updating. Because the total image is larger then the control - I was planning to copy regions of the larger in memory images onto the control surface - like a viewport. Because of how the images need to be scrolled I cannot use the Autoscroll feature of the UserControl. I am very familiar with how to do this in unmanaged C++ but am not sure the best way in .NET 2.0 - the best type of objects to maintain the managed graphics and the best way to copy a region of them to the UserControl surface as the user scrolls. I could use Image, Bitmaps, or Graphics objects but there are limitations (and what I think might be performance hits) with the numerous conversions that would be required. I would prefer not go to DirectX as I don't think my performance needs are that high. Any suggests / best practices? Also, When I first ran the following line of code I got a NotImplementedException thrown: e.Graphics.DrawImage(m_GridPlane, m_DestRect, sourceRect, GraphicsUnit.Inch); Just as a test I changed it to GraphicsUnit.Pixel and although the painting was obviously wrong - it worked. There is no mention of this not being implemented in the docs - am I missing something? Any suggestions? THANKS!! Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100945
  - 3
    - Zoom effect on winforms Hi there, I have a custom control which i want it to draw ina rectangle a picture and i have two buttons to do zoom in and zoomm out. I want that when i click on one of these buttons make a zoom on the drawing to see with more detail a region of it and scrollbars appear in the sides of teh control to navigate through the image. I have derived my control from Scrollablecontrol becuase i jave read that this is the way to acomplish the use of scrollbars but i cant see the way of making the virtual "clientrectangle" smaller than the display rectangle without actually resizing the control. Anyone knows some book that explains how to acomplish this?or knows how to do this? thanks. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100939
  - 4
    - New Rudraksh Free Web Browser Developed in VB.NET Rudraksh is a free Web/Internet Webbrowser. Please check the link to download it http://www.planetcreativa.com/rudraksh.htm Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100933
  - 5
    - MDI App without parent form Hi. Does anyone know how to create a visual studtio type GUI using C#.Net. I.e. an MDI application, but where there is no real parent form, rather a set of floating, dockable child forms that will 'stick' together, etc.? I'm waiting for VS.Net 2005, so I don't have VS installed at the moment, otherwise I'd play around in the IDE and try and work something out. Thanks in advance, Nick Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100932
  - 6
    - Offline Block? I am creating winform app vs.net 2005 and was looking for good patter/practice for offline/online app. In particular how to best store local and sync with server when online. I noticed there is a MSFT block but it is dated 2004. Is there an updated block or is this still a best practice? thx dave Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100924
  - 7
    - Memory usage Hi, What is the typical memory usage for .NET application 2.0. My app is around 30 meg, but sure sure that older version was around 2 megs. What would cause dramatic change in size? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100920
  - 8
    - ToolStripComboBox Mimimum Width With .NET 2.0, insert a ToolStrip onto a form and add a ToolStripCombobox item. I don't know if I'm flat out missing something, but I cannot set the width of a toolStripCombobox any smaller than 75. It just seem ridiculous. toolStripComboBox2.Size = new Size(35, 25); When you execute that line of code, you can see it flash that it resizes it down to 35, but then immediately gets resized back up to 75. The same thing happens in the designer. I cannot find any other documentation or posts on this. Hopefully I'm missing something or doing something stupid. Can someone confirm this width problem. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100909
  - 9
    - could not find a part of the path... Could not find a part of the path... I have developed an application that has a filetype, Filename.llsx, association. My problem is tha on some computers i get a System.IO.DirectoryNotFoundException when i try to download files of my filetypes from the internet. Here is the code that tries to read the file: Dim rd As New System.IO.StreamReader(fileName) Dim myXmlDocument As New System.Xml.XmlDocument myXmlDocument.Load(rd) Here is the error stack: System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Documents and Settings\Mats-Erik\Lokala instÃ¤llningar\Temporary Internet Files\ContentUTF8.IE5\S9U70XI3\WebReport_2006-05-11-09-20-54[1].llsx'. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options) at System.IO.StreamWriter.CreateFile(String path, Boolean append) at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize) at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding) Thanks in advance! Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100906
  - 10
    - Caching Smart Client Lookup Data Hi, We're currently developing a smart client application. It is a WinForms UI that uses WebServices to retrieve data from an Oracle database. The application will have several forms that will use a relatively static set of tables for populating drop-down lists. I'm thinking that caching the data from these tables on the client side, as opposed to bringing them through the Webservice every time would improve application performance to some degree. I'm just wondering if the Caching Application Block is the best route to take for caching static data or is there another recommended approach. The application itself will not be set up to run offline, so I only need limited caching capabilities. Thanks Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100905
  - 11
    - Combobox does not accept key stroke Hi I am using .net 2.0 windows forms. I have a combobox with following properties. DropDownStyle : DropDown AutoCompleteMode : SuggestAppend AutoCompleteSource: Listitems Now When I run the form and go to the combobox and type something it works just fine. combobox suggest items as well. If user does not select anything from combobox and hit submit button, I am populating datagridview with all data. Now when user select any item from combox and hit submit button i am populating datagridview for that specific item. The problem is user can type into the dropdown and dropdown suggests the item as long as someone clicks submit button first time. As soon I populate the datagrid first time, I can not type anything into the combobox. I want user to type into the combobox and select items at any time. Its kinda strange. I would highly appreciate if someone can help me here. thanks Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100902
  - 12
    - Custom windows form border, TransparencyKey Flicker Hello, I've got a question regarding a small amount of flicker I am seeing when a form is first drawn that has a transparent background. I have a custom panel that I'm drawing myself which takes up all of the client area of a form (rounded corners, gradients etc). I have set the background color and the transparencykey of the container form to the same values. Everything draws and looks great however right before the form is displayed I see a black flicker or flash right before the form is rendered. It's a really really quick flash. Is there anyway to get around this? I've tried just a blank form and setting the transparency key and the backcolor to the same values with the same result. thanks, bp Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100901
  - 13
    - Data binding problem Hello, I'd like to make something easy, in theory. In C#, I have a database, and some textbox, I'd like to bind theses textbox, that's that work. But I'd like update the change (update database) and I push on a button, I tried the Update of the DataAdapter but that's not work. Could you help me? A full sample is welcome. Thanks, Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100899
  - 14
    - Creating a GraphicsPath object from a bunch of points I have a whole collection of points, they are actually Latitude and Longitude points that make up a specific area. The points that I have make up the outer edge of the are as well as the interior of the region. What I'm looking to do is create a Path object that will completely bound all of these points, and the path object should be as small as possible to bound each of these points, in otherwords I not looking to make a big square that will encompass all of the points I am looking to make an irregular shaped objects that will exactly bound all of the points. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100898
  - 15
    - .NET SQL Query Designer Control Does anyone know of a .NET control for building SQL Query command that can be embeded in a Windows Form? I am developing a Windows form application and want to give user a visual tool to design SQL querys (SELECT only). The designer needs to be able to work with a .NET dataset directly without a database connection. I did some search and only found a few ActiveX SQL query designers. Thanks for you help. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100891
  - 16
    - Chart on Windows Form VS2005 I have VS2005 Team Edition for Software Developers Version 8.0.50727.42 with .Net Framework 2.0.50727 I have created a Windows Form Project. I have installed OWC11. I have Office 2003 installed on my machine. I have added references to Microsoft Office Web Components 11.0, Microsoft.Office 11.0 Object Library, Microsoft Graph 11.0 Object Library, Microsoft Excel 11.0 Object Library I click tools, chose toolbox items, Comm components and select Microsoft Office Chart 11.0 I drop a chart on my form. When I run the project and open the form I get: Could not load file or assembly 'Interop.OWC11, Version 1.0.0.0, Culture=neutral, PublicKey Token=null' or one of its dependencies. The system cannot find the file specified. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100883
  - 17
    - ListView selection I have a ListView control, and anytime I manually set the selected item, the original item OnSelectedIndexChanged event fires twice. Here is a sample of what I am doing in the OnSelectedIndexChanged function: if ( listView1.SelectedItems.Count == 1 ) { MessageBox.Show( "index = " + listView1.SelectedIndices[0].ToString() ); if ( isinternal ) return; isinternal = true; if ( last >= 0 ) // last is the last selected index { MessageBox.Show( "Not Shown" ); //behaves regardless if the next line is present listView1.SelectedItems.Clear(); listView1.Items[0].Selected = true; } last = listView1.SelectedIndices[0]; isinternal = false; } else if ( listView1.SelectedItems.Count == 0 ) { } I have 4 items in my ListView. Assume I select index 4. I should see message boxes in this order: index = 4 Not Shown index = 0 However, I really see index = 4 Not Shown index = 0 index = 4 Not Shown index = 0 If I don't manually set the selected index to 0, the control behaves as expected. Why does manually setting the selected index cause this behavior? How can I manually set this index and avoid this behavior? Thanks in advance for your help! Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100879
  - 18
    - External component has thrown an exception Hi, I'm getting this error really sporadically in my Winforms app. Seems to happen when trying to display a form with a call to .ShowDialog() It doesn't seem to happen on any particular form, just pops up now & again. I can close the application and restart it, then I can view the form without the error? The application is running in a Citrix terminal server environment, the assemblies themselves are running from a network share. Can anyone think of what would be causing this error - why is it only happening every now & then (the worst sort of errors!) Thanks Dylan Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100878
  - 19
    - MDI Form question hi, I am new to winForm development. When I am using the .NET 2.0 MDI Forms, I want to close one of the child form at the very begining. For example, I want to close Form1, so I write public Form1() {this.close();} And in the MID Parent, I write form1 = new Form1(); form1.MdiParent = this; form1.Show(); The problem is that everytime I open Form1, it will close but there will be an object dispose exception unhandled and my program will hang up. Could anyone here please tell me how to solve this problem? I just want to close one of my child form. Thanks a lot! Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100875
  - 20
    - Datatable Row Number Hi All, I am using a datatable to store some data from the xml. I need the row number where a particular string exists (Note: All values in datatable are unique). Please help me in this regard. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100870
  - 21
    - How to check if application is in debug mode Hi, Is there any way to check if the application is in debug mode or running from the exe. Thanks in advance, Debi Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100866
  - 22
    - RichTextBox Control Captures Shortcut Keys in Regular Windows App but Fails to Capture in an MDI App? Hello All, First, I apologize for posting this to so many newsgroups but I wasn't sure which newsgroup was most appropriate nor which newsgroup would most likely have subscribers that have done this or would have the answer. That said, below is a description of my problem: If I create a standard Windows executable in C# or VB.Net and place a RichTextBox control on the main form, the control captures standard shortcut keys as expected (i.e. Ctrl-V, Ctrl-X, etc.). However, if I add an MDI parent form to the project, make the original form a child form to this parent MDI form and display the original form, the RichTextBox control no longer captures these shortcut keys. Can someone please tell me what is necessary to correct this behavior? Thanks & Regards, TC Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100865
  - 23
    - Application Settings I'm just venting. I finally got around to converting a big WinForms app for my biggest client to .NET 2.0. I've heard all along that application settings are now writable, which has always been one of many bones of contention with .NET 1.1 for me. So I get to the point where I am going to convert my custom settings mechanism, do a little investigation, and find out the reason I made a custom configuration file mechanism hasn't changed at all. Sure - you can write user setttings, and settings are type safe now, but the application scope settings are still read-only. (If anybody knows a reasonable workaround that works within the framework for this, I'd like to hear it). I certainly understand MS's reasoning for making them read-only, but I'm more of the mind that in "most cases" the application settings shouldn't/wont need to be written. However, to prevent it altogether is simply stupid, imho. I feel like I'm old enough to be responsible for my own actions by now. I do like the new stuff for user settings and for application settings that don't change, so I'm actually going to use the new stuff for all of that. However, I have one setting that all users must be able to change, and must be the same for all users. I had a custom configuration file, and I allowed write access to its containing folder on installation. I may move this value to the database for now. Or, Gawd Forbid, the Registry! Don't get me started on generic collections! Ok, I'll start, but just barely... Ha! Have you seen the Find() or Exists() method on List? Here's the code to find '6' in a list of ints: List<int> myInts = new List<int>(); myInts.Add( 0 ); myInts.Add( 1 ); myInts.Add( 2 ); myInts.Add( 3 ); int n = myInts.Find( delegate(int x) { x==6; } ); // seems rather obtuse to Find(6), doesn't it? This returns '0'! Ha! int m = myInts.Find( delegate(int x) { x==0; } ); // This returns '0' too! I tried deriving my own collection, and quickly found that two values of type T cannot be compared. I'm sure there's a good reason for this - I just hope there's a better workaround eventually. It makes me wish for the days #define! Even though that's just the tip of the tip of the iceberg of my complaints, I still like it (2.0 that is). It's definitely a step in the right direction. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100854
  - 24
    - How can I make a modeless form receive input when a modal form is open? >From my main form, I can open and access a modeless form. However, if I then open a modal form (from the main form), the modeless form will no longer accept keyboard and mouse input until the modal form is closed. Is there a way to allow the modeless form to continue to receive input? As an example, Windows Notepad does this. If you open the Find dialog, then open the About box, you can still access the Find dialog. Any pointers appreciated. Thanks, Andrew Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100850
  - 25
    - Non-rectangular Window Hi, I have developed an application that looks like Windows Media Player. Every thing looks wonderful, but when I resize the window it flickers a lot. How can I implement resizing of the window without any flickering? Remember my window doesn't have frame border, title bar etc. thanks, Balu. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100848
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  - 1
    - Image beneath of my window I have Windows application, and I need to draw on it surface the content of desktop (which may consist from another windows or part of desktop or their combination), so, the question is: How to get image which contains windows and/or part of desktop which are located under my window? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100847
  - 2
    - Moving images fluently I am looking for technique which allows to fluently move several images over the form without using DirectX & Open GL. Several images should be moved simultaneously but with different speed. Also one more feature: I should be able to change their (moved images) opacity during moving. Does anybody know good algorithm (or may be article, example, link) to implement these features? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100846
  - 3
    - Setting focus to a control within a usercontrol I have a user control that contains a grid. I want to set focus to the grid when the user control receives focus. I have tried calling grd.focus() for the gotfocus of the user control, but that doesnt work. Any ideas? Thanks Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100838
  - 4
    - Get Notification when an external application started I have create two windows applications called WinAppX andWinAppY. First I opened the WinAppX . When ever i opened the WinAppY ( second app ) , the WinAppX should get notification , after that these two app should communicate each other someway. How can i do this.. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100833
  - 5
    - autosrollbar does not activate I have a windows form with a button on it. The button anchor property is right and the forms autoscroll property is set to true. When adding a second control (also anchor.right) to the left of the viewable area, the scrollbar does not activate. Why? When using anchor.left and adding controls to the right, the scrollbar activates automatically. I want to have the same functionality when adding to the left of the screen. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100831
  - 6
    - Problem with no touch deployment of application which has dynamically loaded assemblies We have an application which dynamically loads an assembly and creates instances of classes. For this we have written a factory class which reflects the assembly and creates the classes and returns the created objects as plain objects. The caller method casts the object returned by the object factory into appropriate class object and uses it. All this works fine when exe is invoked directly. But when the application is deployed on the IIS for no touch deployment, the casting of the object returned by the object factory is throwing an invalid cast exception. Strange thing is that the statement that is causing exception during run time works fine if executed in the Immediate window of the VS.Net IDE. How do I fix it? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100826
  - 7
    - TextRenderer problem Hi, I'm creating a control that overrides ListView and so I'm working on redrawing everything myself with some changes here and there... But I'm having a problem with drawing the text inside the rectangle on LargeIcon mode... I thought I'd finally discovered the solution with TextRenderer but this still doesn't give the correct results. Here's the code I'm trying to use (item is a ListViewItem) Rectangle text_rect = item.GetBounds(ItemBoundsPortion.Label); TextFormatFlags formatFlags = TextFormatFlags.WordBreak | TextFormatFlags.HorizontalCenter | TextFormatFlags.Top | TextFormatFlags.EndEllipsis; if (item.Text != null && item.Text.Length > 0) TextRenderer.DrawText(dc, item.Text, item.Font, text_rect, item.ForeColor, item.BackColor, formatFlags); The problem is that its still not exactly what the original ListView displays... ie I'm displaying: ___________ | some | | really long | original ListView displays: ___________ | some really | | long text | Surely it should fit inside the bounding box if its using the GDI draw method and I'm using the bounding box thats returned to me from the ListViewItem itself? Any ideas? thanks Kris Wragg Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100820
  - 8
    - Custom Control Design Time Property Selector I'm creating a custom control with design time support, i wish to create the a property which is xml document and let the deisgner to use the property selector in VS.Net to browse to the xml file and attach it to the custom control, how can i do that? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100816
  - 9
    - How to make dynamic toolboxes ina form Hi there, I'm doing a GUI for my apllication and i wanted to know if it is possible to do something similar to what is done in the GUI of whidbey. I want to have in the right part of my main form toolboxes that i can show or hide dynamically to let the user save space. Anyone knows how can i do it? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100812
  - 10
    - Customization In Web Application All, Using VS 2005, C#.NET, SQL Server 2005, W2K3. We are developing a web application that would be shared by numerous customers for information management. Some of those customers want variations on the usual form layout. For example, we have a form where the user can enter their dependents information (parents, siblings, spouse, kids, etc.), but we know one of our customers wants to include additional information on that form that none of the other customers would use (company specific insurance coverage). Based on our experience with our C/S version of the product, we can expect to see many more requests like this. There are 3 ways to do this that I see. 1. Create a separate web application for that customer and host it on a different web server. 2. Add the custom fields to the single web application but hide the extras based on the customer using it. 3. Allow the customer to add the fields themselves and store them for just that customer. Pros and cons that I see. 1. Quick to implement, but costly in new infrastructure, and would end up difficult to maintain. 2. Still relatively quick to develop, and uses existing infrastructure, but would create complex forms. 3. Difficult to develop, but would use existing infrastructure and wouldn't need extra maintenance. Personally, I'd like to use 3. That is... Design the application so that each form includes standard fields, but a customer can add new labels, textboxes, drop-down combos, lists, etc., themselves and doing so doesn't require us to change any code or the database schema. While this would be a no-brainer in an C/S application, it gets a little more difficult in a web app since the only client they use is a browser. Any thoughts? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100808
  - 11
    - Type of member 'DataReader1' is not CLS-compliant. Hi, Why do I have this error in one project but not another? Type of member 'DataReader1' is not CLS-compliant. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100806
  - 12
    - Bigger Large Icons in listview, possible? Hi all, I'm just wondering if it's possible to make the icons under large icons view in listview bigger? For some reason, I think the default is set at 16 X 16 pixels? I don't think I've done anything wrong? ----------------------------------------------------------------------------------------------- this.listView1.View = View.LargeIcon; this.listView1. ImageList il = new ImageList(); il.Images.Add(Bitmap.FromFile("C:\\pictures\\topics\\1.gif")); listView1.LargeImageList = il; ListViewItem item1 = new ListViewItem("ALL"); item1.ImageIndex = 0; listView1.Items.AddRange(new ListViewItem[] {item1}); --------------------------------------------------------------------------------------------------- Even though it was set to largeIcon, it's still only 16 X 16 pixels at best. Any help will be appreciated. Cheers Edmond Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100805
  - 13
    - How to attach to a process middle tier for debugging Hi, I'm consulting on a project that has two solutions, a client solution, and a middletier solution. The middle tier solution is hosted in asp.net. I want to debug something in the middle tier, and I've been told that I have to attach to the asp.net process. So I add a breakpoint on the code in the middle tier. I build the middle tier solution and then the client solution in debug mode. Then I start the client application. Then I'm supposed to attach to the ASP.NET process. I've tried to attach to the asp.net process from both solutions but the debugger doesnt stop at the breakpoint. The middletier is not in the client solution, but is referenced Can Anyone help? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100803
  - 14
    - TextBox Size.Height Is there any way to control a TextBox Size property's Height? Besides making it Multiline? Everytime I set the Size, it always reverts back to Size.Height = 20 (or whatever value based on the current font, I think). I've tried setting the Min/Max Size but that only seems to hold during design time. Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100800
  - 15
    - Marlett not allowed? [VS 2005] I want to display a right-pointing triangle glyph like that indicating a submenu. This is "8" in the Marlett font. However, when I put a label on a form and set its font to Marlett, all I see is a regular "8", both in the designer and when the app is running. Is there a limitation? I once created a drop-down button by explictly drawing text in Marlett, and that worked, but I had to do it that way because I was using two fonts (one for the button text and one for the down glyph). I'd like to avoid doing that much work when it seems like the control should handle it for me. Suggestions? Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100794
  - 16
    - Form -> Panel -> Child Form -> Resize -> Bug? I'm using the following code to show/hide a form located inside a panel that is located on my main form. The panel is set to DockStyle.Fill so that when the main form is resized the panel is also resized. The problem is that the included child form never resizes beyond it's initial starting size. Don't child forms respect the DockStyle setting during resize of parent controls? If I take out the commented lines of code it works - but of course it looks like crap while doing it. Button click event: if (f2 == null) { f2 = new Form2(); f2.TopLevel = false; this.pnl_childform.Controls.Add(f2); } if (!f2.Visible) { f2.Show(); f2.BringToFront(); f2.Dock = DockStyle.Fill; //f2.WindowState = FormWindowState.Minimized; //f2.WindowState = FormWindowState.Maximized; } else { f2.Hide(); } Tag: ObjectDisposedException - cannot access a disposed object called "Icon" Tag: 100792
  - 17
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I have some code using forms and ShowDialog that was previously working
perfectly well, but now throws ObjectDisposedExceptions with message
'ObjectDisposedException - cannot access a disposed object called "Icon"'
when ShowDialog is called. Anyone had this kind of error before and any
ideas as to the cause?

======================
Clive Dixon
Digita Ltd. (www.digita.com)

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Re: ObjectDisposedException - cannot access a disposed object called "Icon" by Clive

Clive
Fri May 12 10:00:48 CDT 2006

Found the problem - one of the other guys in the team has pulled the rug
from under my feet, and by using Reflector I find that Microsoft have been a
bit naughty and the Icon.Handle property get throws an
ObjectDisposedException if it has a null handle - the object has not been
disposed at all, it hasn't been initialised.

======================
Clive Dixon
Digita Ltd. (www.digita.com)

"Clive Dixon" <clived.noluncheonmeat@digita.noluncheonmeat.com> wrote in
message news:uLVao7cdGHA.3840@TK2MSFTNGP04.phx.gbl...
>I have some code using forms and ShowDialog that was previously working
>perfectly well, but now throws ObjectDisposedExceptions with message
>'ObjectDisposedException - cannot access a disposed object called "Icon"'
>when ShowDialog is called. Anyone had this kind of error before and any
>ideas as to the cause?
>
> ======================
> Clive Dixon
> Digita Ltd. (www.digita.com)
>
>
>

Top