GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist?

TheMSsForum.com: The Microsoft Software Forum

The MSS Forum ‹ Winforms
- Archive
  - Biz
  - MCSE
  - CRM
  - Drivers
  - Framework
  - ADO
  - ASP
  - Compact
  - Forms
  - Dotnet
  - C#
  - VB
  - FontpageGen
  - Excel
  - WorkSheet
  - Exchange
  - Setup
  - Fox
  - Fontpage
  - ASP
  - IIS
  - Entourage
  - Money
  - Messanger
  - PocketPC
  - Powerpoint
  - Project
  - Publisher
  - Excel
  - VB
  - Security
  - Portal
  - Services
  - SQLServerDev
  - SVCS
  - SQLServer
  - VB
  - VC
  - MFC
  - ExcelGen

- Previous
  - 1
    - ".resx" files not kept up-to-date by Visual Studio Hi there, Can anyone explain why the assembly qualified names seen in the ".resx" file for each form in an application aren't kept up-to-date by Visual Studio. For instance, if a dialog uses a user control from some other library in the same solution, the user control's assembly qualified name will appear in the dialog's ".resx" file. Each time the control's library is compiled however, the library's version is incremented but the ".resx" file continues to show the original version number. How then does Visual Studio load it when the dialog is displayed in the Visual Studio designer? If all projects are signed then the control's library identity won't match what's in the '.resx" file but Visual Studio seems to ignore this. Can anyone shed any light on the situation? Thanks in advance. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116898
  - 2
    - Bug in ComboBox with AutoCompletion? Hi, I have a strange problem. The Combobox component always raises an OnTextChanged event when it is validated and auto completion is activate. Take a look at .NET framework source code, ComboBox.cs, method "OnValidating". This method calls "NotifyAutoComplete()", which itself calls "OnTextChanged" when the selected index was not changed - it does not check if the text was really changed! This for example causes that the OnTextChanged event is always raised when the ComboBox looses focus. There are several other ways where the event is raised where it should not. Any ideas? Carsten Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116897
  - 3
    - General question about VB6-Dot Net conversion I've been tasked with converting a VB6 exe (plus associated dlls.) The conversion is not supposed to be exact so the conversion wizard is probably not an option. I'm more concerned about basic conceptual matters at this point (especially since the legacy code is extremely complex and downright strange in places.). Can anyone point me to a favorite reference or discussion on this subject? (I can probably wing it but I'd like to avoid common pitfalls.) Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116896
  - 4
    - image from url in datagridview Does anybody know if it's possible to have a winform datagridview show an image in a column that comes from a url? thanx, Tom Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116895
  - 5
    - Installation problem Hi people I am having problems with DotNet. I accidently deleted .net 2 sp1 from my machine, and I need to re-install. I have searched the MS site for information, and have followed the advice I found. My problem is a round robin thing whereby I can not install .Net 2 because my machine insists that it is incompatible. I have done all I can from the information I have from MS KBs. I have .net 1.1 installed, .net 2 refuses to re-install as does .net 2 sp1. I need a foolproof (!) way of uninstalling and re-installing this software. (Even MS Update fials to install). Help?! Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116894
  - 6
    - DataGridView: draw only a border for selected row Hi all, is there a way to highlight a selected row (in a grid that allow only a row selected, or even just a cell at one time), drawing only a thick border around the row (but not between the cells of the same row) instead of the highlight blue background? I couldn't find any way to do it correctly Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116890
  - 7
    - Windows Virtual memory --minimum? How do I fix this problem ? It keeps poping up once in a while? Read out says that the virtual memory is low Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116888
  - 8
    - Installation error (GAC) I am using the trial version of MailBee.NET IMAP. I created a program and made a setup package. I installed it on my other vista machine and I get this error: Unable to install or run the application. The application requires that assembly MailBee.NET Version 3.0.2.79 be installed in the Global Assembly Cache (GAC) first. Please contact your sys admin. Any ideas how to fix this? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116886
  - 9
    - Remoting Hi, i need to share custom object with remoting. Ideas???? Please. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116880
  - 10
    - 80070008, WindowsUpdate_dt000 80070008, WindowsUpdate_dt000. Thats the error im getting when i try to install service pack 1. I have enough memory and all the requierments. I tried troubleshooting the error with their service page. I am getting an error when i try to install my webcam "not enough storage to install this device" and i think the problam has to do with the same prob im getting from trying to install sp1. Any help would help alot, im very stressed over this issue. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116879
  - 11
    - Tab control and navigation buttons Hello - I have a tabbed control on a form that is populated from a database. I have a request to change the application to include a navigation button for customers that have multiple records. I have created navigation buttons for use in forms, however, I have never developed them specifically for a tab control. Is it possible to do this? Any help will be greatly appreciated! -- Sheldon Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116872
  - 12
    - Button stuck disabled when running under VS Debugger Hello all, I'm experiencing a samewhat strange behaviour when running my Windows Forms app from withing Visual Studio 2008. The application is multithreaded and the workerthread fires an event that should enable a button in the GUI. I'm using BeginInvoke to call the method that enables the button on the GUI thread. The code is very straight forward: On the worker thread: [...] ffmpegProcess.WaitForExit(); if (GeneratorFinished != null) { GeneratorFinished(this, null); //event that triggers the button enabler } In the GUI Class: void generator_GeneratorFinished(object sender, EventArgs e) { if (this.InvokeRequired) { MethodInvoker invoker = new MethodInvoker(EnableStartButton); invoker.BeginInvoke(null, null); } else { EnableStartButton(); } } private void EnableStartButton() { btnStart.Enabled = true; } This works as expected when running the program outside of VS. However if I start the Program within VS (by hitting F5) the Button does change its appearance from disabled to enabled but does still not accept mouse input. The button works when I press the accelerator key (Alt+S). I can also tab to the button (it recieves focus) and press enter. However tabbing to it and pressing space doesn't work. Once the button got activated via tab+enter or the accelerator key it 'unsticks' and accepts mouse input again. It's not a big deal but a little annyoing and I'm curious if there's anything I can do to prevent it from happening? Thanks Ben Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116869
  - 13
    - c# forms programming book? what is good book for learning c# forms programming? thx! Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116862
  - 14
    - ClickOnce: Certificate cannot be validated Hi, We are signing our ClickOnce manifests with a code signing certificate purchased from Thawte. When we install the software a security warning is shown, and when we click on the publisher it says the certificate can not be validated. This is because the "Thawte Code Signing CA" is not present on the client machines. Having done a web search, I found a previous post in this group describing exactly the same issue - viewable at: http://groups.google.com/group/microsoft.public.dotnet.framework.windowsforms/browse_thread/thread/8c46df2acf25d54/4c1c4221f69fa09e From one reply from Linda Liu [MSFT]: >I searched in our inner database and found a similar issue in it. The >following is the comments: > >Firstly, this is a known issue that is being addressed in the next version >of Visual Studio - The Orcas. >Click Once apps do not distribute certificate/cert chains on the fly. So >for path validation to be recognized at install time - the installing >machine must have the intermediate certificate in this specific case. My investigations have not yet turned up any CAs that offer code signing certificates that directly chain from certificates we will find on our very vanilla customer machines - they all seem to use intermediate certs. (I'd love to be proved wrong on this...) My real question relates to the comment that this is being addressed in the Orcas release of Visual Studio. Is this true? If so, is there support in framework 3.5 that can be accessed via cClickOnce APIs? Thanks, Tony Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116861
  - 15
    - Open Outlook form through VB.NET Hi guys, Wonder whether I could get help !! I want to open Outlook form through my VB.NET ? What is the best way of doing it ? At the moment, I could do by sending keys to Outlook and opening it. However, just wondering there is better ways of doing it...?? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116859
  - 16
    - First chance exceptions Hi When running my app in vs 2008 IDE I get the below messages in the Immediate Window repeatedly. A first chance exception of type 'System.NullReferenceException' occurred in MyApp.exe A first chance exception of type 'System.Runtime.InteropServices.InvalidComObjectException' occurred in MyApp.exe A first chance exception of type 'System.IO.FileNotFoundException' occurred in System.Drawing.dll A first chance exception of type 'System.ArgumentNullException' occurred in mscorlib.dll They don't crash the app but it seems the app slows downs when one of these errors occurs. What is the problem and how can I fix tit? Thanks Regards Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116856
  - 17
    - Form-to-Form Control I am using C # .NET Framework 3.5. I have a calling form that invokes dialog box (called form). I want a button in the called form to change the value of a property in a control in the calling form. Clearly I could set a return code in the called form and have it acted on when control is returned to the calling form. Is there a technique that I can use that would allow me to have a routine in the called form change the content of a control in the calling form without returning control to the calling form? ... Thom ___________________________________________________ Thom Little - www.tlanet.net - Thom Little Associates, Ltd. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116853
  - 18
    - Accessing the status bar In my winforms app, I have a MainForm which has a panel on it called ContentPanel. ContentPanel holds a User Control which consists of a grid of records depending on whether it is customers, invoices etc. From within the user control which is sitting in the panel on the MainForm how can I access the status bar? Bill Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116851
  - 19
    - Acessining the status bar In my winforms app, I have a MainForm which has a panel on it called ContentPanel. ContentPanel holds a User Control which consists of a grid of records depending on whether it is customers, invoices etc. From within the user control which is sitting in the panel on the MainForm how can I access the status bar? Bill Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116850
  - 20
    - Can I create a Windows Explorer Icon type object in .NET I am trying to create a Windows Explorer icon type object in .NET that will display an icon image and have a label that works like the label on an icon in Windows Explorer; maximum two-line display that expands to full-size when selected and is editable. I would also like to be able to have it contained on a Form and be able to reposition it by changing a "Location" property. I have experimented with PictureBox and Panel box objects without any success. Is there such an object available in .NET (or natively)? The editable label is especially interesting. For now I have implemented a static display use the various Graphic class methods; DrawImage and DrawString but they really do not replace the advantage of having a true icon type object that I could click and manipulate. Robert Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116846
  - 21
    - TableNewRow event handling issue Greetings, Using VS 2005 SP1; I created a simple form by dragging and dropping a data table. I changed it to a details view, so I have a mixture of text boxes, combo boxes and a check box (no dgv). I want to programatically populate the controls when the user clicks on the Add New button, so I added the following event handler: void MyDataTable_TableNewRow(object sender, DataTableNewRowEventArgs e) { int nIndex = int.Parse(this.bindingNavigatorPositionItem.Text); e.Row.BeginEdit(); e.Row["Col0"] = this.myDataSet.MyDataTable.Rows[nIndex].ItemArray[0].ToString(); e.Row["Col1"] = this.myDataSet.MyDataTable.Rows[nIndex].ItemArray[1].ToString(); e.Row["Col2"] = this.myDataSet.MyDataTable.Rows[nIndex].ItemArray[2].ToString(); ...etc... e.Row.EndEdit(); } This works surprisingly well; the user can select any row and use it as a template for the new row. I tried to take this a step further; instead of setting the columns individually, I tried to use the CopyTo function as follows: void MyDataTable_TableNewRow(object sender, DataTableNewRowEventArgs e) { int nIndex = int.Parse(this.bindingNavigatorPositionItem.Text); e.Row.BeginEdit(); this.myDataSet.MyDataTable.Rows[nIndex].ItemArray.CopyTo(e.Row.ItemArray, 0); e.Row.EndEdit(); } The code seems to execute, but all my controls are blank, like the CopyTo did nothing; what am I missing here? Shouldn't this work? -- Regards, Bob Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116843
  - 22
    - Creating GroupBox with Radio Buttons from enum using reflection Hi, I am using reflection to read names from enum and creating radio buttons inside a groupbox. Everything is working fine. However, I am not able to adjust the size of the group box to fit the content. Is there a simple solution to this problem? Parent of group box is FlowLayoutPanel which fills the parent form. string[] names = Enum.GetNames(pi.PropertyType); //pi is a PropertyInfo object which represents a property of type enum. GroupBox gbx = new GroupBox(); //gbx.AutoSize = true; gbx.Name = "gbx" + pi.Name; gbx.Text = pi.Name; gbx.Padding = new Padding(2, 5, 2, 2); panel.Controls.Add(gbx); TableLayoutPanel tlp = new TableLayoutPanel(); tlp.ColumnCount = (int)Math.Floor(Math.Sqrt(names.Length)); tlp.Dock = DockStyle.Fill; tlp.Padding = new Padding(1); //int maxRBLength = 0; foreach (string name in names) { RadioButton rb = new RadioButton(); rb.Name = "rb" + name; rb.Text = name; rb.AutoSize = true; rb.Margin = new Padding(0, 0, 0, 0); //if (rb.Width > maxRBLength) maxRBLength = rb.Width; tlp.Controls.Add(rb); } gbx.Controls.Add(tlp); Thanks SG Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116837
  - 23
    - Pagefile on iSCSI Disks I'm having problems creating large pagefiles on os disk conencted via MS iSCSI Initiator. I'm guessing this is because the iSCSI disk is not available at the time Windows tries to create the pagefile, does anyone know a way arond this ? Thanks Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116833
  - 24
    - Saving file dialog Hi I am using an open file dialog which allows me to select a file to open. This is all great. But it does not allow me to give a filename and select folder to save the file to if the file does not already exist. How can I implement save file functionality? Thanks Regards Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116823
  - 25
    - Slow app response Hi I have replaced an ms access app with its vb.net version at a client site. Now the clients keeps complaining about how slow the app response is. The complains they have are for example when app is minimised and then trying to maximise it after a while takes a while for app to get maximised. Also form painting of controls is slow and app is generally slow in terms of response to user clicks. I am using Infragistics controls and my feeling is that makes the app bit sluggish compared to the original controls shipped with vs 2008 but I need the Infragistics controls for their features. I have also ngen'd the app but surprisingly only the main app executable gets ngen'd and not any of the dependency dlls such as Infragistics dlls. Are there any tips to make app response better for user? Thanks Regards Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116822
- Next
  - 1
    - Bootmgr. missing Hey all you fine technological geniuses! I have seen some of you having some problem as I have encountered the last week. When starting up the computer says: 'Bootmgr. missing - press ctrl.-alt-delete to restart'. I think I might have tried everything you have suggested and more to it, but the problem still remains - do anyone have a new solution to my problem - it starts to aggrevate me! By the why - I'm running Vista home premium. -- Midtgaard Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116820
  - 2
    - Upgrade to Vista Ultimate broke VS 2008 I had Vista Home Premium with VS 2008 - worked just great. Upgraded to Vista Ultimate - now with a Windows App the following happens: 1. Try to open Form1 in designers mode (new app or existing app), error = "The service Microsoft.VisualStudio.Shell.Interop.ISelectionContainer already exists in the service container". 2. Compile app (new or existing), build error = ".NET Framework 2.0 update not found. The win32manifest will not be embedded" Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116815
  - 3
    - ClickOnce Updates from a Different Publish Server Hi, I'm currently using ClickOnce to deploy an application written in Visual C# 2005. The client has it installed already. I'm wondering if there is a way to change the client to point to a different publish server (http://66.x.x.x/app) to download updates without uninstalling and installing the client. Thanks. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116808
  - 4
    - PerformanceCounterCategory.Create() takes 3 minutes to add a new category!! How come? What can cause this? PerformanceCounterCategory.Create() takes 3 minutes to add a new category!! How come? What can cause this? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116804
  - 5
    - Calling a form in second project Hi Can I run a from in one project from a second project, both projects being in the same solution? Thanks Regards Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116801
  - 6
    - Getting TextBox default height Is there a way to get the height of a textbox without creating one? Basically I can use this: TextBox tbox = new TextBox(); height = tbox.Height; but I would rather not create a temporary object if there is some static method to get the height. I want to draw some rectangles that have the same height as the default TextBox. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116797
  - 7
    - Converting a DataColumn's Datatype on the fly Hi everyone, I have one dataset that gets built dynamically from XML, I parse a large soap message and extract the schema from XML( I am working in .NET 1.0, sorry for the pain). anyway, by default the dataset resutling from this process has a data type of string for all columns. My question is : Is there a way to convert the datatype of columns from String to Double, or to any other format, on the fly? I know for a fact that all values in that datacolumn are all doubles. One thing I am doing is creating a new column with a datatype of double, and then looping through all existing row in the string column and then converting them, but this is a nightmare as the size of the table grows. Thank you. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116796
  - 8
    - Driving me nuts! How to do two-levels inheritance under UserControl? I have a few types of panels (each with different controls), which I will create dynamically and place on a form. I can make them UserControls if I need to. However I would like to have a base class for these, so that I have a class hierarchy like: System.Windows.Forms.Panel | | MyBasePanelClassWithOverridableMethods | | | | MyPanelType1 MyPanelType2 I tried to create a UserControl and inserted a base class within Notepad, changing: ---------------------- Partial Class UserControl1 Inherits System.Windows.Forms.UserControl --------------------- To: ---------------------- Partial Class MyBaseUserControl Inherits System.Windows.Forms.UserControl End Class Partial Class UserControl1 Inherits Class MyBaseUserControl ------------------------ ...and DevStudio2008 gives me an error "Value does not fall within expected range", which is useless. Is there something more I need to do to insert my base class? Is there another way to achieve what I need to achieve? I need MyPanelType1 and MyPanelType2 to be editable as far as contained controls, etc... Thanks! Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116791
  - 9
    - CollectionEditor Avoiding duplicates Hi I am using a collectioneditor to populate a List. I don't want duplicates entries in the list. But collectioneditor just puts what ever we insert. It wont check for duplicate entries. How to do it. Thanks in advance sriraj Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116787
  - 10
    - Keys.Control and Keys.ControlKey Does anyone know what the difference between Keys.Control and Keys.ControlKey is? Same goes for Keys.Shift and Keys.ShiftKey. What's the correct usage for these values? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116776
  - 11
    - tracking logged in User I have a winform app that validates a user against a table in my database. I want to track the user throughout the program for maintaining permissions to access parts of the program etc. In a web app, I would just throw the current user into a session varaible and access it from any webform. What's the proper way to do this in a winform app? Bill Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116775
  - 12
    - ToolStripComboBox.ComboBox What is the deal with this property? As long as the ToolStripComboBox is visible on the ToolStrip, it seems to work fine. However, if the ToolStrip gets shrunk to a size that the ToolStripComboBox is only accessable through the extension button, the ComboBox property starts behaving in a manner that I do not expect. In particular the SelectedValue property does not work. Is this by design? I can not find any articles explaining why the ComboBox would not always just work. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116774
  - 13
    - Using OCX in a Windows Service Hello there, I am creating a windows service to monitor wireless terminals and then transmit the barcodes to the clients. The service needs to use a OCX (I hate to use OCX in a service but, without OCX, you wont be connected to the base station). I have added a form and used the ocx on the form only to connect to the base station. However, I do get a message in the event log. The service won't start. Service cannot be started. System.Threading.ThreadStateException: ActiveX control '244758c6-a002-11d2-b82b-938daecfce37' cannot be instantiated because the current thread is not in a single-threaded apartment. at System.Windows.Forms.AxHost..ctor(String clsid, Int32 flags) at System.Windows.Forms.AxHost..ctor(String clsid) at AxPLSERVERLib.AxPLServer..ctor() at WHE.PandD.WHEPLSContainer.InitializeComponent() at WHE.PandD.WHEPLSContainer..ctor() at WHE.PandD.WHEDespatchServiceFacade.StartWorking() at WHE.PandD.WHEDespatchService.OnStart(String[] args) at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state) For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. I have set [STAThread] attribute and also tried System.Threading.Thread.CurrentThread.TrySetApartmentState(System.Threading.ApartmentState.STA); Could you please let me know what I am doing silly here? Ta Mahesh Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116773
  - 14
    - .Net form as child of Visio window Hi, I am writing a Visio add-on using VB.Net. I have a form that I want to display as a child of a Visio drawing window and I want to display it modally. So I'm using this code: Dim myForm as New Form Dim visioWindow as Visio.Window = visioApp.Window SetParent(myForm.Hand.ToInt32(), visioWindow.WindowHandl32) myForm.ShowDialog() This correctly displays the form but unfortunately freezes not only the form but the whole Visio UI. Nothing is clickable. I want to know if someone has an alternate way to show a VB.net form modally as a child of visio (or for that matter any office app because all of them are written in COM) that does not have this problem. Please help. Thanks in advance. ~Gurinder Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116772
  - 15
    - Datagridview + ContextMenuStrip: How to get the column? Hi, I have a datagridview on my form and I want the user to be able to remove columns. I have added a simple contextmenustrip to the datagridview but now when the user rightclicks on the column the menu is shown before the column click is handled. So how can I get the column index for that right-clicked-column? rg, Eric Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116770
  - 16
    - URGENT: Gmail API for VB.NET I am making a WinForms Application to interface with GMail. The user should be able to: 1. Login to GMail 2. Go thru the inbox 1 message at a time 3. Read the message and some message attributes (From/To, Date, etc...) Any good GMail APIs you know of to help me out? Thanks! Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116766
  - 17
    - custom TextBox Hello all, I wanted some advice on the easiest way to go about the following: I have some TextBoxes that are enabled/disabled at various times in the program. When they are disabled, the default is a gray background with dark gray text. Is it possible to customize the text color when the TextBox is disabled. For example, make it red? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116759
  - 18
    - winproc hi, i worte an application with C# and i am monitoring the comming Messages by overloading the WinProc. but when the pc is Locked out no new Message is monitor, ?????? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116757
  - 19
    - RichEdit control not processing Return character I have a control inheriting from RichEdit. All is well except that it is not processing carriage returns. Meaning, when you hit Return, you will not get a new line. The previous developer overrode the WndProc, and intercepted the return character message, doing some fancy selection coding to insert a CRLF, but that's causing some other problems with the formatting. My question is, why won't the control handle the return message as I expect it to? The Multiline property is set to true. Normal, vanilla RichEdits added to a form handle the message properly, so the prev. developer must have set some property that's blocking the normal CRLF functionality. Does anyone know what that might be? Thanks, Pete Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116755
  - 20
    - None GUI thread (common problem) After two years of developement, we start to realize that there is a threading problem in our application. The cardinal rule - "you should not interact with a control's properties from a thread other than the one that created the control" - has been broken a couple of times, and we're having trouble with application hang. Now there are a few places in our code that need to be examined to get rid of the problem. But there seems to be at least two things, out of our control, that can cause the same problem. First, we use a third party library of GUI components from DevExpress, and according to their knowledge base, there is a problem with the XtraForm which all our forms inherit. And second, there seems to be a problem in the .NET Framework 2.0 according to this article: http://ikriv.com:8765/en/prog/info/dotnet/MysteriousHang.html As there are potentially three sources to the hang problem, and the hangs seem to appear only infrequently, it's extreemly difficult to know for certain if the changes we make to our code make it 100% safe. Because of that I need to get the best possible resource on how this problem should be solved (or how to program GUI using multiple threads in the first place). 1. Is there some good article on this topic at MSDN, or maybe MSDN Magazine? 2. I also want to know if there is a way to get rid of the problem in .NET 2.0 Framework, described in the MysteriousHang article. Will there be a patch for .NET 2.0 Framework, or has the problem been solved in .NET 3.5 Framework? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116754
  - 21
    - Has anyone actually done this? Has anyone actually, successfully, used the Microsoft.Office.Interop.MSProject.FileOpen command in real life? Sorry to be so blunt but I'm getting nowhere and I thought I'd reach a wider audience here than in project.developer. Also I'm running out of time. All I want to do is create an instance of MS Project 2003 in Dot Net 2.0 (Winforms) and then command it through the Interop to load a project, in this case from a SQL Server db. The FileOpen command is crashing with a 'The argument value is not valid' error, and I can find virtually nothing coherent on line concerning this. I'm getting the impression that no one ever does this sort of thing. Suggestions, examples, anything? Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116744
  - 22
    - Storing string with variable as app setting Hi I have a string expression which is evaluated based on value of a variable like this; "MyTable.MyField = (" & MyVar.ToString & ")" I need to save this expression as app setting so I can change it without having to recompile and reinstall the app every time. How do I do this? Creating and app setting say X as "MyTable.MyField = (" & MyVar.ToString & ")" does not work as My.Settings.X brings the whole expression as a literal and does not evaluate the value of variable MyVar. Thanks Regards Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116736
  - 23
    - Child controls visible before dialog frame I have a dialog that takes a few seconds to load. While in the form's Load event handler, several of the child controls will become visible for a couple of seconds before the form's window frame becomes visible. What could I do to make sure the whole dialog is displayed at once, instead of piece-meal? TIA Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116733
  - 24
    - Click once issue & desktop shortcuts Hello, The location of the Click Once Client update was changed (Cert expired), while the users desktop shortcuts remained from the Original install. I confirmed that the application starts using Start Menu / Programs, but not the old desktop shortcuts. This makes sense to me, but is there a way to manage/prevent this issue? Thanks, Schneider Caused the following error: PLATFORM VERSION INFO Windows : 5.1.2600.131072 (Win32NT) Common Language Runtime : 2.0.50727.1433 System.Deployment.dll : 2.0.50727.1433 (REDBITS.050727-1400) mscorwks.dll : 2.0.50727.1433 (REDBITS.050727-1400) dfdll.dll : 2.0.50727.1433 (REDBITS.050727-1400) dfshim.dll : 2.0.50727.1433 (REDBITS.050727-1400) SOURCES Deployment url : file:///C:/Documents%20and%20Settings/rraczyla/Desktop/Marks%20Pricing%20&%20Audit%20Client.appref-ms ERROR SUMMARY Below is a summary of the errors, details of these errors are listed later in the log. * Activation of C:\Documents and Settings\rraczyla\Desktop\Marks Pricing & Audit Client.appref-ms resulted in exception. Following failure messages were detected: + Downloading file://ixion/MarksPricingClient/MarksPricingClient.application did not succeed. + The network path was not found. + The network path was not found. + The network path was not found. COMPONENT STORE TRANSACTION FAILURE SUMMARY No transaction error was detected. WARNINGS There were no warnings during this operation. OPERATION PROGRESS STATUS * [3/31/2008 1:40:09 PM] : Activation of C:\Documents and Settings\rraczyla\Desktop\Marks Pricing & Audit Client.appref-ms has started. ERROR DETAILS Following errors were detected during this operation. * [3/31/2008 1:40:35 PM] System.Deployment.Application.DeploymentDownloadException (Unknown subtype) - Downloading file://ixion/MarksPricingClient/MarksPricingClient.application did not succeed. - Source: System.Deployment - Stack trace: at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next) at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles() at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState) at System.Deployment.Application.DownloadManager.DownloadManifestAsRawFile(Uri& sourceUri, String targetPath, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation) at System.Deployment.Application.DownloadManager.DownloadDeploymentManifestDirect(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation) at System.Deployment.Application.DownloadManager.DownloadDeploymentManifest(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, IDownloadNotification notification, DownloadOptions options) at System.Deployment.Application.ApplicationActivator.ProcessOrFollowShortcut(String shortcutFile, TempFile& deployFile) at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension) at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state) --- Inner Exception --- System.Net.WebException - The network path was not found. - Source: System - Stack trace: at System.Net.FileWebRequest.EndGetResponse(IAsyncResult asyncResult) at System.Net.FileWebRequest.GetResponse() at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next) --- Inner Exception --- System.Net.WebException - The network path was not found. - Source: System - Stack trace: at System.Net.FileWebResponse..ctor(FileWebRequest request, Uri uri, FileAccess access, Boolean asyncHint) at System.Net.FileWebRequest.GetResponseCallback(Object state) --- Inner Exception --- System.IO.IOException - The network path was not found. - Source: mscorlib - Stack trace: 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, Boolean useAsync) at System.Net.FileWebStream..ctor(FileWebRequest request, String path, FileMode mode, FileAccess access, FileShare sharing, Int32 length, Boolean async) at System.Net.FileWebResponse..ctor(FileWebRequest request, Uri uri, FileAccess access, Boolean asyncHint) COMPONENT STORE TRANSACTION DETAILS No transaction information is available. Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116731
  - 25
    - DPI issues Are there any suggestions for developing large windows form applications (1000+ forms some with 30-50 controls on the form) in .NET 2.0 that scale properly in 96DPI and 120DPI. Microsoft ISV is discussing to switch to WPF but am curious on others have handled this. We are seeing labels show up incorrectly, headers in Data grids, or other images shown incorrectly. With all the new laptops today coming in high resolutions for their native resolution and 120 DPI it is getting harder to support just 96DPI. If there are any suggestions or Must Do's like putting controls on panels, or group boxes that seem to always fix this please advise. -- Thanks, Jeff Tag: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Tag: 116723

GC.Collect() not cleaning memory, how to find out what references to lots of
memory still exist?

When all my processign is done i set everything to null and then:
GC.Collect();
and then
GC.WaitForPendingFinalizers();
but it still shows that my process takes 400 MB of memory. Is there any easy
way to see what references that I forgot to set to null so that the memory
cleas up on GC.Collect() ?

Top

Re: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? by Scott

Scott
Tue Apr 15 18:33:11 CDT 2008

See my reply in other NG.

"DR" <softwareengineer98037@yahoo.com> wrote in message
news:uEkRnF0nIHA.2292@TK2MSFTNGP03.phx.gbl...
> GC.Collect() not cleaning memory, how to find out what references to lots
> of memory still exist?
>
> When all my processign is done i set everything to null and then:
> GC.Collect();
> and then
> GC.WaitForPendingFinalizers();
> but it still shows that my process takes 400 MB of memory. Is there any
> easy way to see what references that I forgot to set to null so that the
> memory cleas up on GC.Collect() ?
>

Top