Performance issue due to Background image

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  - 1
    - clickonce async wait I want to do an async update with clickonce. The main reason is so I can get the DeploymentProgressChangedEventArgs (bytes downloaded etc.) and update the UI. What is the best way to wait in the main thread until the CheckForUpdateCompleted event fires. thanks, Tag: Performance issue due to Background image Tag: 101768
  - 2
    - Professional Toolstrip Renderer Is there a simple method to set the renderer to one of the three standard XP themes without having to set each property? I want to give the user the option (on pre XP systems) to set the application style to one of the XP themes. Thanks. Tag: Performance issue due to Background image Tag: 101767
  - 3
    - Windows Form Application Authentication in .NET 2.0 Hi, I am trying to implement ActiveDirectory Authentication for Windows Form Application in .NET 2.0. I am not getting much help regarding WinForms with ActiveDirectory, but most of the information telling about ASP.NET with Active Directory. Can any one please point me to the right information. Thank you! Suresh Tag: Performance issue due to Background image Tag: 101765
  - 4
    - Drag and Drop Outlook attachment into a Windows Form Control I previously performed drag and drop between 2 lists within a Windows form. Right now I am looking for something a little more complex and I am not able to find a way to do it. In just few words, I want to drag a file (in my case a PDF file) which is an attachment to an email in Outlook 2003 client and drop it over a control (in my case a command button or anything else) within a window in my application. When file is dropped over my designated control, I do not need to open it I just want to save it into a SQL database. Saving files in SQL databases is not an issue because I am already doing it, my only problem is I don't know how to capture the dropped file into a variable in order to be afterwards able to save it into the database. The same question would apply for other formats too (e.g. BMP, JPG, TIFF, DOC, XLS, etc.) if each type should be handled in a different way. I appreciate any hints into this issue. Thanks, Adrian Tag: Performance issue due to Background image Tag: 101764
  - 5
    - Using vbTab to create tsv files I'm attempting to create a tsv file (i.e. equivalent to what Excel produces when you use the Text (tab delimited) type when saving. I'm trying this... Dim sw As New System.IO.StreamWriter("c:\test.tsv") sw.Write("sdfdsf" + vbTab + "dsfsd") sw.Close() ...but the output of that is gibberish. Anyone how to do this? Tag: Performance issue due to Background image Tag: 101758
  - 6
    - Data binding to a NUmbericUpDownBox I have 1 row of data in data set and want to bind to a numeric box. I figured that nUpDwnMin1.DataBindings.Add("Value", ,"Min_1"); but I having an issue figuring out the source notation. Unfortunately, I am getting confused about setting the value from the data set. I created all my tables with table[0]. Do I have to use a get and set statement for the valuesl in the class? Can I directly load from the dataset? Also, these are numbers that will be updated that's why I decided to use a dataset to write back easily? This data set only contains 1 record. I put the code below to see if I am going over board. Any help is greatly appreciated. Mark //Call over private void Load_CodeAssignments() { DataTable dt = new DataTable(); Codes dsCodes = new Codes(cbDept.Text, cbPyramid.Text); dt = dsCodes.Get_Codes; //nUpDwnCodeA.Value = dsCodes.Get_Codes.Columns["A_pct"]; No good //nUpDwnMin1.Value = Convert.ToDecimal(dt.Columns["Min1"]); No good nUpDwnMin1.DataBindings.Add("Value", ,"Min_1"); } //Class public class Codes { #region Private Members private DataSet _dsCodes; #endregion #region Public Properties public DataTable Get_Codes { get { return _dsCodes.Tables[0]; } } #endregion #region Constructors public Codes(string Department, string Pyramid) { //This will establish the database connection Database db = DatabaseFactory.CreateDatabase("Test"); //This will allow you to call a SP and use parameters DBCommandWrapper dbc = db.GetStoredProcCommandWrapper("usp_Inv_SS_GetCodes"); dbc.AddInParameter("@Department", DbType.String, Department); dbc.AddInParameter("@Pyramid", DbType.String, Pyramid); _dsCodes = db.ExecuteDataSet(dbc); } #endregion Tag: Performance issue due to Background image Tag: 101753
  - 7
    - treeview I have a treeview wist several nodes each node has its own context menu for now, every menuitem in theese menues has the same code: msgbox (treeview1.selectednode.name.tostring,okonly) the problem is that every i click on the menuitem the message box shows me name of the node that was selected before rightclick and thet node is stil selected. how do i get node name of the node where right click happened? Tag: Performance issue due to Background image Tag: 101746
  - 8
    - Program stuck when removing row from DataTable Hello I have built a DataGridView that its data source is binded to a DataTable after adding it 200 rows I try to remove the first row and the program stuck, What could it be???? Thanks. Tag: Performance issue due to Background image Tag: 101740
  - 9
    - ClickOnce error After a few problems with my windows account (was deleted and then made it again with the same name) I can't update my app with ClickOnce. The error is 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\john\Start menu\Programs\john\contacts.appref-ms resulted in exception. Following failure messages were detected: + The referenced assembly is not installed on your system. (Exception from HRESULT: 0x800736B3) COMPONENT STORE TRANSACTION FAILURE SUMMARY No transaction error was detected. WARNINGS There were no warnings during this operation. OPERATION PROGRESS STATUS * [08.06.2006 11:07:55] : Activation of C:\Documents and Settings\john\Start menu\Programs\john\contacts.appref-ms has started. ERROR DETAILS Following errors were detected during this operation. * [08.06.2006 11:07:55] System.Runtime.InteropServices.COMException - The referenced assembly is not installed on your system. (Exception from HRESULT: 0x800736B3) - Source: System.Deployment - Stack trace: at System.Deployment.Internal.Isolation.IStore.GetAssemblyInformation(UInt32 Flags, IDefinitionIdentity DefinitionIdentity, Guid& riid) at System.Deployment.Internal.Isolation.Store.GetAssemblyManifest(UInt32 Flags, IDefinitionIdentity DefinitionIdentity) at System.Deployment.Application.ComponentStore.GetSubscriptionStateInternal(DefinitionIdentity subId) at System.Deployment.Application.SubscriptionStore.GetSubscriptionStateInternal(SubscriptionState subState) at System.Deployment.Application.ApplicationActivator.ProcessOrFollowShortcut(String shortcutFile, TempFile& deployFile) at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut) at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state) What assembly is about and how can I correct this ? Tag: Performance issue due to Background image Tag: 101732
  - 10
    - How to place border to the item selected in the listbox? Hi All, I'am using Vb.net 2005.I want to develop an application in which I have listbox control with 2 columns in it. In first column string is displayed and in other column colored labels are displayed. Now whenever i select item from a listbox it shows blue color filled into that row. Instead of this i want whenever user selects item from listbox some rectangular border is placed thorugh the item. For a look it is there in Microsoft publisher color scheme. Please let me know how to do it. Thank You in advance. -Manju Tag: Performance issue due to Background image Tag: 101731
  - 11
    - How to place border to the item selected in the listbox? Hi All, I'am using Vb.net 2005.I want to develop an application in which I have listbox control with 2 columns in it. In first column string is displayed and in other column colored labels are displayed. Now whenever i select item from a listbox it shows blue color filled into that row. Instead of this i want whenever user selects item from listbox some rectangular border is placed thorugh the item. For a look it is there in Microsoft publisher color scheme. Please let me know how to do it. Thank You in advance. -Manju Tag: Performance issue due to Background image Tag: 101730
  - 12
    - How to place border to the item selected in the listbox? Hi All, I'am using Vb.net 2005.I want to develop an application in which I have listbox control with 2 columns in it. In first column string is displayed and in other column colored labels are displayed. Now whenever i select item from a listbox it shows blue color filled into that row. Instead of this i want whenever user selects item from listbox some rectangular border is placed thorugh the item. For a look it is there in Microsoft publisher color scheme. Please let me know how to do it. Thank You in advance. -Manju Tag: Performance issue due to Background image Tag: 101729
  - 13
    - .net framework configuration Hi everyone, I have to install a .net executable on every machine in my network. Done. Now, when this executable runs, it stops with an unhandled exception. The only machine where it runs OK is the one on which I put up a .net framework security policy that enables the application to run. Right, but is there a way to set up this configuration via script or group policy, or do I have to manually configure each workstation ?! Tag: Performance issue due to Background image Tag: 101728
  - 14
    - PropertyGrid MS .Net gurus opinion needed Hi there all, I've used the property grid control in the past and it is a very nice control. But i wonder is there a way to switch the left and right columns, for languages the use RTL the left column should be the value column and the right column should be the property name column. Is there a way to achive this without writing the control from scratch ? I've explored all of the properties and methods of the property grid and didn't found a hack for this. 0L Tag: Performance issue due to Background image Tag: 101727
  - 15
    - "Global" objects I am new to .NET and am wondering how to accomplish having certain global objects that could be referenced by other forms/user controls. I have a main form on which I show various user controls depending on which item the user clicks on in the NavBar on the left of the form. Each user control has certain program functionality on it. What I want to do, for example, is have certain object variables on the main form (e.g. m_oEventLogger) that I can reference from my user controls, or from other forms that I might show. 1) How do I declare these in the code for the Main form? 2) How would I refer to them from user controls shown on the main form? 3) How would I refer to them from other forms that are shown separate from the main form? Tag: Performance issue due to Background image Tag: 101726
  - 16
    - What is major difference between form and usercontrol? Both of them are derived from Container Control Class. But if I used a user control derived class, it cause a refreshment problem, whereas everything was okay if used a form derived class. I suspected user control had blocked some messages. thx. Tag: Performance issue due to Background image Tag: 101723
  - 17
    - Problem with MDI child form behavior I'm working on a C# program in Visual Studio 2003. The main form has a treeview control on the left side, a splitter, and the right side of the splitter has nothing and is used as the MDI client area. I have several MDI child forms open (typically maximized) and can pick which child form has focus by clicking on it's node representation in the treeview control. The event handler for the treeview figures out which mdi child form is associated with the selected node and does Child.Focus(). Everything works fine, except one of my forms. It is fairly long, has AutoScroll = true, and has a vertical scrollbar even when maximized, because of the length of the form. The form will look normal the first couple of times I choose it's node (is maximized with a scrollbar). But eventually when I select another form, then switch back to this form it will be resized as if the windowstate is "Normal", even though it is actually "Maximized". The middle controlbox button shows as if the form is maximized and I can see the other child form maximized behind it. If I click the "maximize" controlbox button, it will stay it's same size, but switch to "Normal" windowstate, where I can click the "maximize" button again to maximize it to the proper view. Also, if I've switched to this child form so that it is in this messed up state and just start to resize the main parent form, the mdi child form will immediately snap into the proper maximize state. If I turn "AutoScroll" off, the child form won't ever go into this weird state, but I don't have the scrollbar, which is needed. This seems like a bug with the .NET framework that others might have come across. Does anyone know what's happening or a solution? Tag: Performance issue due to Background image Tag: 101717
  - 18
    - .NET windows service does not autostart I have created a windows service in VS2005 .NET, which works well. The service is set to "Automatic", however it does not autostart on bootup. The eventlog shows the error "The service did not respond to the start or control request in a timely fashion" My service uses TCP/IP sockets, so I have specified "Tcpip" as a dependency service (For some reason, the DependOnService shows up in the registry entry for my service, but not in the services management MMC). My service also tries to connect to a SQL server on a remote database at startup (I am using ADO.NET). Should I be adding any other DependOnServices? I read a post about this error happening if the Application event log is full, however, on my machine it is set to "overwrite events as needed", so I dont think thats the issue. Harv Hundal Tag: Performance issue due to Background image Tag: 101716
  - 19
    - Is there a way to stop control events during the form load? I have a VB.NET app with a radio button that has check changed handler on it, and the InitializeComponent() code sets the .checked value to true which triggers the event handler. Is there a way to suspend event processing until initialization is complete? Thanks. Tag: Performance issue due to Background image Tag: 101714
  - 20
    - ClickOnce Double Install Prompt I am trying to deploy an application using ClickOnce The website appears to be correct. The user can open it in thier browser and click on the install button The user receives the Application Install - Security Warning prompt and can click Install or Dont Install The user clicks Install The app appears to be installing The user then receives a second Application Install - Security Warning prompt and can click Install or Dont Install If the user clicks Dont Install then a security exception happens ('System.Security.Policy.PolicyException') The Start Menu Icon was created The user can then click on the Start Menu Icon The user receives the Application Install - Security Warning prompt and can click Install or Dont Install If the User Click Install the application will then run The user will then never be propmted again. How can I remove the second Install prompt? Thank you Tag: Performance issue due to Background image Tag: 101713
  - 21
    - Active Directory Authentication in .NET2.0 Hi, I am trying to write Windows Form application in .NET 2.0, which needs ActiveDirectory Authentication module integration. Can any one point me to related links. Please suggest me what is the right way of doing in .NET 2.0. Thanks Suresh Eddala Tag: Performance issue due to Background image Tag: 101712
  - 22
    - TreeView missing QueryContinue..Event I am trying to get a QueryContinueDragEvent per the MSDN tutorial on Drag&Drop from a TreeView control. My TreeView is at the same time source and destination (basically I am trying to manually rearrange nodes). I try to abort the D&D when outside the main form but I can not get the Query.. Event to fire; any ideas what's can be wrong? I've already installed handlers/subscribes for most (Ithink) related events but no luck so far... Thanks ahead! TB Tag: Performance issue due to Background image Tag: 101711
  - 23
    - ContextMenuStrip on Dual-Screen-Desktop Hi, when the ContextMenuStrip is opened near the right margin of the first screen, the menu itself is displayed on the second screen. Windows Explorer shows it's context menu left of the mouse-cursor-position when opened at the same screen-position. Is there a way to change the behaviour of opening ContextMenuStrip to the behaviour of the contextmenus in Windows Explorer? Thanks, Bruno Tag: Performance issue due to Background image Tag: 101708
  - 24
    - Suggestions on this problem? (List of controls / user controls) Hi, I have a problem where i need to show non-standardised information in a list and would like to provide in place editing if possible. for example Line 1 A B C Desc 1 3 5 6 Line 2 I II III IV Desc 2 2 4 5 5 The numbers under thier respective headers are the ones i need to provide in-place editing for. There should never be 100s of lines/items so i'm not too worried about creating lots of window handles cos there shouldn't be too many. However, should I... a) use an owner drawn list / control and provide editing in a custom control shown from a Dialog window that is opened after user has selected the item he/she wants to edit? (no inplace editing) b) create a user control which creates all the fields, labels etc and show them in a scrollable control? inplace editing ok, but nightmare to code, esp i'm additing and removing lines c) use a datagrid, with an owner drawn column? is this possible? I already have a user control which renders itself and child text boxes etc for a single item, is there any control anyone knows of that can render a series of user controls? or how do you create an owner drawn datagrid column? (if it's possible) there are a few options i guess, but none seem to be that good. I've seem some 3rd party DataGrids that allow owner drawn cells but this must be possible with DataGrid no? any advice appreciated -- TIA Sam Martin Tag: Performance issue due to Background image Tag: 101706
  - 25
    - BindingNavigator: does it have a 'Current Item Changed' type of event? I need to do something extra every time the position of what is the 'current' item changes. This could be the user clicking one of the buttons, or typing in a new number However, there doesn't seem to be an event that just says " the user selected a different item from the navigator". In fact, it seems I have to handle the Click event of every toolstrip item that could change the position. Plus, trap the lost focus event for the textbox that displays the current number, and probably trap its KeyDown event in case the user enters the new number and hits Enter. I can't seem to find an event on the navigator itself that would notify me of when the position changes. Not even a property that says what the current item index is - I have to parse out what is in the textbox? I must be missing something basic, because it seems that the control would be incomplete without these 2 thigns. Tag: Performance issue due to Background image Tag: 101705
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  - 1
    - Need assistance with DSO Hi gang, this is pretty critical to me. Any help you can provide is appreciated. I have a WebBrowser control placed on a form. I am not getting the same results as I am in IE. Here is the deal, I dynamically load the HTML into the WebBrowser control, then I invoke a script that passes in XML data to the document. The XML data is not that large, say if it were recipies, it would have maybe 4 recipies in it. The script that loads our "recipies" first populates the master DSO for safe keeping. Then it loads the first "recipie" in the the working DSO so that the user may view it. What is not working properly is that the data never displays in the WebBrowser control on the WinForms application, in IE, it works just fine. I have explored using the onreadystatechange() and ondatasetcomplete() events in attempt to determine what is going on. I have also traced the data being sent to the working dso, it just never appears to load the data in the WebBrowser control. The WebBrowser control is intended to be a read only view of the data on the system. I populate the HTML on the control via the controls DocumentText property Me.wbViewer.DocumentText = My.Settings.HTMLFile I then wait for the document to complete loading Private Sub wbViewer_DocumentCompleted(ByVal sender As Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles wbViewer.DocumentCompleted I then set the data for the document via InvokeScript() If (Not (wbViewer.Document Is Nothing)) Then Dim ObjArr(0) As Object ObjArr(0) = CObj(XmlWrapper.MakeXMLData(<mybusinessobject>)) Me.wbViewer.Document.InvokeScript("loaddata", ObjArr) End If Inside the html I have something like:  <div class="left" id="menusection"></div>  <table datasrc="#mySelectedData" id="DataTable"> <thead> <th>Column 1</th> <th>Column 2</th> <th>Column 3</th> </thead> <tr> <td><span datafld="Column1"></span></td> <td><span datafld="Column2"></span></td> <td><span datafld="Column3"></span></td> </tr> </table>  <div id="myErrors" /> <xml id="myData"></xml> <xml id="mySelectedData"></xml> <script> function loaddata(data){ try { myData.XMLDocument.async="false"; myData.XMLDocument.loadXML(data); reload(0); } catch (e) { myErrors.innerText += "Error loading data: " + e.description; } } function reload(index,settrans){ try { //Populate transaction table if requested if (settrans!=0){loadtransactions();} //hide the data table, just incase the data is empty DataTable.style.display="none"; DataTable.style.visibility="hidden"; var oNodeList = myData.XMLDocument.selectNodes("rootNode/item"); var oTempNode = null; var iIndex=-1; oTempNode = oNodeList.nextNode; while ( oTempNode != null ){ iIndex ++ if (iIndex == index){ //Load subset of data into working DSO mySelectedData.XMLDocument.loadXML("<rootNode>" + oTempNode.xml + "</rootNode>"); //Generate context menus for this set data genmenus(); //Display the data table DataTable.style.display=""; DataTable.style.visibility="visible"; //We've gotten what we came for, move on break; } //If (iIndex == index) } //While ( oTempNode != null ) } //try catch(e){ } } //loaddata('<sample><xml><string><here>'); </script> Tag: Performance issue due to Background image Tag: 101693
  - 2
    - DataGridView non-focused selection appearance I have two DataGridViews on a form. (I'm using .NET 2005) When I run it, I can't tell which control has the focus because the selection looks the same on both controls. I'd like the selection appearance to work the way Windows Explorer does where only one control has the regular blue selection, and the other controls have a gray selection when they are not selected. How do I do that? Thanks! Tag: Performance issue due to Background image Tag: 101685
  - 3
    - ListBox: only repaint the items, not other area, in some cases Sorry I can't clearly describe how to reproduce this problem. Only what I can confirm is that, in some cases, the listBox just repainted all items in it, the other area kept the content before. For example, if another window overlaped on it, after removed that window, the listBox's items can normally refresh, but the other blank area kept the content of previous window. It's very strange. I think listBox does some special things to items drawing. I don't know how to do. thx in advance. Tag: Performance issue due to Background image Tag: 101676
  - 4
    - MouseHover event during drag and drop operations Hi, I am writing a classic, "Explorer"-like app in vb.net 2003 (dotnetfx1.1). I have written code to handle the dragging and dropping of items from a ListView on the right hand part of the form to a TreeView on the left part of the form. When the user pauses over a node in the TreeView in the middle of a drag and drop operation, I'd like the node to automatically expand to reveal the child nodes, just as you see in many commercial applications. However, I am unable to create this behaviour because the TreeView control does not fire the MouseHover event whilst in the middle of a drag and drop operation. Are there any workarounds to this? Regards, James Tag: Performance issue due to Background image Tag: 101675
  - 5
    - PropertyGrid Hi there all, I've used the property grid control in the past and it is a very nice control. But i wonder is there a way to switch the left and right columns, for languages the use RTL the left column should be the value column and the right column should be the property name column. Is there a way to achive this without writing the control from scratch ? I've explored all of the properties and methods of the property grid and didn't found a hack for this , MS are you listening , why dont you expose a property for this ? 0L Tag: Performance issue due to Background image Tag: 101674
  - 6
    - Gui thread, memory leak, and garbage collection This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C68A59.A0F96860 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi all,=20 I seem to be chewing up memory at a nasty rate when my app runs. It has a polling loop and not surprisingly this is the part that keeps = doing it. I think I've located the line that is my main offender and its when I = marshal to get back onto the GUI thread so I can update my controls. private void KPI_ScreenUpdate(KPI KPIType) { if (this.InvokeRequired) this.Invoke(new KPI_ScreenUpdateDelegate(KPI_ScreenUpdate), new = object[] { KPIType }); else { DPL_Units_Through.Value =3D myKPI_Shift.Units_Through; DPL_Shift_Time.Value =3D tmpElapsed.ToString(); DPL_Elapsed_Setup_Time.Value =3D tmpSetupElapsed.ToString(); } Now what I've noticed is that anytime I create an object using 'NEW' = keyword in my loop (called every n seconds) .. I can watch the memory = usage of my app go up and never down. So mostly I've been ensuring that I never create an object in one of = these loops. But I thought that the garbage collector would deal with these objects = once they go out of scope .. and I dont know any other way except the = above snippet to ensure I dont cross thread for the control update. Will the garbage collector keep my memory under control if I use it = implicitly ??? or am I doing something fundementally flawed when = marshalling threads ? Regards Bob ------=_NextPart_000_0006_01C68A59.A0F96860 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2873" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT face=3DArial size=3D2>Hi all, </FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>I seem to be chewing up memory at a = nasty rate when=20 my app runs.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>It has a polling loop and not = surprisingly this is=20 the part that keeps doing it.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>I think I've located the line that is = my main=20 offender and its when I marshal to get back onto the GUI thread so I can = update=20 my controls.</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV> <P><FONT face=3DArial size=3D2>private void KPI_ScreenUpdate(KPI=20 KPIType)<BR>{</FONT></P> <P><FONT face=3DArial size=3D2>if = (this.InvokeRequired)<BR>   =20  this.Invoke(new KPI_ScreenUpdateDelegate(KPI_ScreenUpdate), new = object[] {=20 KPIType });<BR>else</FONT></P> <P><FONT face=3DArial size=3D2>{</FONT></P> <P><FONT face=3DArial size=3D2> DPL_Units_Through.Value =3D=20 myKPI_Shift.Units_Through;<BR> DPL_Shift_Time.Value =3D=20 tmpElapsed.ToString();<BR> DPL_Elapsed_Setup_Time.Value =3D=20 tmpSetupElapsed.ToString();</FONT></P> <P><FONT face=3DArial size=3D2>}</FONT></P> <P><FONT face=3DArial size=3D2></FONT> </P> <P><FONT face=3DArial size=3D2>Now what I've noticed is that anytime I = create an=20 object using 'NEW' keyword in my loop (called every n seconds) .. I can = watch=20 the memory usage of my app go up and never down.</FONT></P> <P><FONT face=3DArial size=3D2>So mostly I've been ensuring that I never = create an=20 object in one of these loops.</FONT></P> <P><FONT face=3DArial size=3D2>But I thought that the garbage collector = would deal=20 with these objects once they go out of scope .. and I dont know any = other way=20 except the above snippet to ensure I dont cross thread for the control=20 update.</FONT></P> <P><FONT face=3DArial size=3D2>Will the garbage collector keep my memory = under=20 control if I use it implicitly ??? or am I doing something fundementally = flawed=20 when marshalling threads ?</FONT></P> <P><FONT face=3DArial size=3D2>Regards = Bob</FONT></P></DIV></BODY></HTML> ------=_NextPart_000_0006_01C68A59.A0F96860-- Tag: Performance issue due to Background image Tag: 101672
  - 7
    - Windows Installer projects adding to startup. There is a MSN like windows application developped in C#, for which i have created a setup (installer) project using visual studio 2003, and the setup works fine for me. But further i would like to specify, whether to add this to windows start up during the installation. after few hours of googling i'm still clue less on this; so any help provided is greately appriciated. thankx Tag: Performance issue due to Background image Tag: 101670
  - 8
    - Issues with multiple GUI threads (ó#, .NET 1.1) Hi! I already posted this message in microsoft.public.dotnet.framework, but I see almost no reaction, so I decided to re-post it to others newsgroups, too. I just wonder if anybody has faced this problem before and could help to troubleshoot it. Following is my original message. Thanks for your attention. Alexei Adadurov (alexei.adadurov at super-lab dot ru) --------------------------------------------------------------------------------------- Hello! I am writing a desktop application that uses multiple GUI threads to interact with the user. Secondary GUI thread creates a main form for this thread, having application's main form as its parent and calls System.Windows.Forms.Application.Run() with this newly created form. The problem is that, under certain conditions (described below) secondary GUI thread strangely crashes after it has exited the 'threadstart' function. The crash is 'Unhandled access violation exception' (0xc000000a) in ntdll.dll with the following call stack: ntdll.dll!_RtlFreeThreadActivationContextStack@0() + 0x1eda4 kernel32.dll!_ExitThread@4() + 0x39 kernel32.dll!_BaseThreadStart@8() + 0x3d My environment is .NET 1.1, Microsoft Windows XP SP2. And yes, it crashes on another machines, too. Condition for crash is that thread crashes only after I create and display a modal dialog box (another custom form), heaving main form for GUI thread #2 as Parent. This dialog box is used to display messages to the user instead of System.Windows.Forms.MessageBox (it has enhanced functionality like "Don't show this anymore" checkbox and timeout timer allowing it to be dismissed if user haven't clicked any buttons. When I switch back to System.Windows.Forms.MessageBox everything is fine. As this issue occurs in a big solution, I created new simple little CrashTest project to simulate this behavior and isolate my problem, but so far I haven't succeeded. Does anyone know what could cause this behaviour? Best regards, Alexei N. Adadurov (alexei.adadurov at super-lab dot ru) Tag: Performance issue due to Background image Tag: 101668
  - 9
    - Good "pattern" for data entry forms... I am new to .NET Windows Forms but am currently using Visual Studio 2005 primarily with VB.NET. I am in the process of creating an application that is going to have several different forms that allow for editing records in a table in my SQL Server 2005 database, each form serving a different purpose and showing some same and some different fields. Let's say it's a table called Tickets. My question is this... It should be noted that there are business rules associated with Tickets, and the fields contained therein. Can you suggest a pattern for these data editing/entry forms which will allow for creating new records, deleting existing records, and updating existing records? The pattern would include things like 1) how I should get and store data for the current record while user is working on it, 2) How should data be populated into controls on the forms (e.g. databound vs. manually filled in from some class or dataset, 3) how should I implement business rules, 4) how I should persist data out to database, etc. Any guidance would be very much appreciated. Perhaps there are even online articles on this that you could point me to, or a good book(s). Tag: Performance issue due to Background image Tag: 101666
  - 10
    - Show method of Panel is very slow Hi all, I'm looking at trying to improve the performance of showing a bunch of controls on a panel. I have a class that extends Panel. In that class, I do the following: this.SuspendLayout(); this.Hide(); //add controls to "this" AddControls(); this.ResumeLayout(); this.Show(); I have placed timing code in the above and the invocation of the Show method is extremely slow (relatively speaking to everything else). All of the other operations (including my custom AddControls method) take less than half a second. Meanwhile Show always takes anywhere from a second and a half to two seconds. I have to use the above ordering in order to ensure the Panel gets scroll bars to display properly since each invocation to the above code can result in a completely different set of controls (ranging from 1 control to 50 or more controls). Also, if I don't use Hide first, then the insertion of the controls can end up taking over 2 seconds. The only paths I can think of pursuing are either: a) finding some other way to get the Panel to figure out how much it needs to scroll (i.e. something like Invalidate), and/or b) determining why the show takes so long on each of contained controls Any suggestions on how I could pursue A or B or if there is an option C? Each of the controls I add are custom controls. Thanks, Novice PS Not that it matters (since .Net is .Net) - but I'm using C# Tag: Performance issue due to Background image Tag: 101665
  - 11
    - Strange resizing problem with datagrid control I have a standard windows datagrid on my windows form and a custom combo box datagrid column as one of the columns in the datagrid. Sometimes when I start scrolling the datagrid it goes into a strange resizing mode and lets me change the size of the datagrid at runtime while I hold down my mouse instead of scrolling. It's really strange and seems to be related to the custom combo box datagrid column that I'm using. Any ideas as to what I should look for to fix this? I can post up some sample code if that is helpful. I'm using VB.Net, .Net 1.1 and Visual Studio 2003. Thanks, Jason Tag: Performance issue due to Background image Tag: 101664
  - 12
    - Found GDI leak in TreeView (anyone know about it?) I have found what seems to be a leak of GDI resources in the .NET TreeView. I'm not entirely sure it's the .NET code or the underlying OS Common control but here's the skinny: If you use the Checkboxes property and set it to true on a TreeView it will leak 1 or 2 bitmaps and 2 memDCs every time you create and dispose of such a treeview. Our application has a browser-like UI parts of the UI are changing as controls get removed and destroyed. This leak eventually leaks too many GDI resources resulting in a crash. I was using the GDIUsage tool posted at http://msdn.microsoft.com/msdnmag/issues/03/01/GDILeaks/default.aspx to verify this and I put together a small app that exhibits the behavior. Start a new project, create a new form and paste this into your code to try it out. Click the create a tree, then the middle button to remove/dispose/GC. You'll notice that the tree with the checkboxes leaks resources and the one without checkboxes leaks nothing. We are on VS2k3 using .NET 1.1 SP1. Do the MS folks know about this and is there a patch? ==================code================ public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.Panel TreeViewPanel; private System.Windows.Forms.Button CreateCheckTreeButton; private System.Windows.Forms.Button CreateNoCheckTreeButton; private System.Windows.Forms.Button DisposeTreeButton; /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public Form1() { // // Required for Windows Form Designer support // InitializeComponent(); // // TODO: Add any constructor code after InitializeComponent call // } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.TreeViewPanel = new System.Windows.Forms.Panel(); this.CreateCheckTreeButton = new System.Windows.Forms.Button(); this.CreateNoCheckTreeButton = new System.Windows.Forms.Button(); this.DisposeTreeButton = new System.Windows.Forms.Button(); this.SuspendLayout(); // // TreeViewPanel // this.TreeViewPanel.Location = new System.Drawing.Point(24, 16); this.TreeViewPanel.Name = "TreeViewPanel"; this.TreeViewPanel.Size = new System.Drawing.Size(680, 400); this.TreeViewPanel.TabIndex = 0; // // CreateCheckTreeButton // this.CreateCheckTreeButton.Location = new System.Drawing.Point(24, 440); this.CreateCheckTreeButton.Name = "CreateCheckTreeButton"; this.CreateCheckTreeButton.Size = new System.Drawing.Size(152, 40); this.CreateCheckTreeButton.TabIndex = 1; this.CreateCheckTreeButton.Text = "Create TreeView with CheckBoxes"; this.CreateCheckTreeButton.Click += new System.EventHandler(this.CreateCheckTreeButton_Click); // // CreateNoCheckTreeButton // this.CreateNoCheckTreeButton.Location = new System.Drawing.Point(552, 440); this.CreateNoCheckTreeButton.Name = "CreateNoCheckTreeButton"; this.CreateNoCheckTreeButton.Size = new System.Drawing.Size(152, 40); this.CreateNoCheckTreeButton.TabIndex = 2; this.CreateNoCheckTreeButton.Text = "Create TreeView without CheckBoxes"; this.CreateNoCheckTreeButton.Click += new System.EventHandler(this.CreateNoCheckTreeButton_Click); // // DisposeTreeButton // this.DisposeTreeButton.Location = new System.Drawing.Point(288, 440); this.DisposeTreeButton.Name = "DisposeTreeButton"; this.DisposeTreeButton.Size = new System.Drawing.Size(152, 40); this.DisposeTreeButton.TabIndex = 3; this.DisposeTreeButton.Text = "Remove and Dispose of the Tree"; this.DisposeTreeButton.Click += new System.EventHandler(this.DisposeTreeButton_Click); // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(728, 510); this.Controls.Add(this.DisposeTreeButton); this.Controls.Add(this.CreateNoCheckTreeButton); this.Controls.Add(this.CreateCheckTreeButton); this.Controls.Add(this.TreeViewPanel); this.Name = "Form1"; this.Text = "Form1"; this.ResumeLayout(false); } #endregion /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); } private TreeView CreateTreeControl() { TreeView tree = new System.Windows.Forms.TreeView(); tree.BorderStyle = System.Windows.Forms.BorderStyle.None; tree.Dock = System.Windows.Forms.DockStyle.Fill; tree.ImageIndex = -1; tree.Location = new System.Drawing.Point(3, 16); tree.Name = "TheTree"; tree.ShowLines = false; TreeViewPanel.Controls.Add(tree); tree.Nodes.Add("Node1"); tree.Nodes.Add("Node2"); tree.Nodes.Add("Node3"); return tree; } private void CreateCheckTreeButton_Click(object sender, System.EventArgs e) { TreeView tree = CreateTreeControl(); // Add checkboxes tree.CheckBoxes = true; } private void CreateNoCheckTreeButton_Click(object sender, System.EventArgs e) { CreateTreeControl(); } private void DisposeTreeButton_Click(object sender, System.EventArgs e) { while (TreeViewPanel.Controls.Count > 0) { Control c = TreeViewPanel.Controls[0]; TreeViewPanel.Controls.Remove(c); c.Dispose(); } // Invoke the GC GC.Collect(); GC.WaitForPendingFinalizers(); GC.Collect(); GC.WaitForPendingFinalizers(); } } ==================endcode-============= Tag: Performance issue due to Background image Tag: 101658
  - 13
    - Capturing mouse events (Mouse up and down on the desktop) Hi, I am trying to capture the mouse events when the user clicks on the desktop not the winform. I looked at the mouse_event function but MSDN documentation says that it is suppressed in win NT/2000/XP. What I am trying to do is to get print screen for a section on the desktop every number of seconds. And I want the user to be able to select that region. Any help will be appreciated. Tag: Performance issue due to Background image Tag: 101656
  - 14
    - Smart Client Fails When Run On Machine With .NET 2.0 I have a Smart Client application that was written in .NET 1.1 long before .NET 2.0 ever came out. It works great. It uses web services and because we have many development environments, it dynamically gets the base Url to construct the Url for the web services by simply calling Application.ExecutablePath. Like I said, this all works great on a computer with .NET 1.1 Framework installed, but it now fails on a computer that has both .NET 1.1 and recently installed .NET 2.0! So much for Microsoft's side by side execution! The error I get is as follows: System.Security.SecurityException: Request for the permission of type System.Security.Permissions.FileIOPermission, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 failed. at System.Security.CodeAccessSecurityEngine.CheckHelper(PermissionSet grantedSet, PermissionSet deniedSet, CodeAccessPermission demand, PermissionToken permToken) at System.Security.CodeAccessSecurityEngine.Check(PermissionToken permToken, CodeAccessPermission demand, StackCrawlMark& stackMark, Int32 checkFrames, Int32 unrestrictedOverride) at System.Security.CodeAccessSecurityEngine.Check(CodeAccessPermission cap, StackCrawlMark& stackMark) at System.Security.CodeAccessPermission.Demand() at System.Reflection.Assembly.VerifyCodeBaseDiscovery(String codeBase) at System.Reflection.Assembly.GetName(Boolean copiedName) at System.Reflection.Assembly.GetName() at System.Windows.Forms.Application.get_ExecutablePath() I have tried all kinds of things, but trying to get at the launch Url always fails with the FileIOPermission Security Exception. I have tried several other things like: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnforms/html/winforms05152003.asp But the following returns null: AppDomain domain = AppDomain.CurrentDomain; object obj = domain.GetData("APP_LAUNCH_URL"); string appLaunchUrl = (obj != null ? obj.ToString() : ""); And calling: string configFile = domain.SetupInformation.ConfigurationFile; Throws the same FileIOPermission Security Exception. I also tried: http://www.dotnet247.com/247reference/msgs/44/224782.aspx But could not get it to work. If anyone has any ideas they'd like to throw my way, I'd appreciate it. Tag: Performance issue due to Background image Tag: 101655
  - 15
    - ClickOnce Files I published a clickonce application and a couple new versions. I was wondering what is the purpose of the WinClickOnce_1_0_0_0.application WinClickOnce_1_0_0_1.application files on the web server is. It looks like only the WinClickOnce.application file is used (maybe for rollback of versions). Tag: Performance issue due to Background image Tag: 101647
  - 16
    - Embedding a resource at runtime Hi there. Does anyone know if it's possible to embed a new resource into an assembly at runtime as well as update an existing (assembly) resource. Any assistance would be appreciated. Thanks. Tag: Performance issue due to Background image Tag: 101645
  - 17
    - How to change the borderColor for a panel control Hi, I am using VB .net 2005 to create my windows form application , i have a panel control in my main form , i want to change the border color of the panel to red color , could any one help me to resolve this problem Thanks in advance Sajin Tag: Performance issue due to Background image Tag: 101637
  - 18
    - Cant determine Valid Ordering Hi, I keep getting my VS installations stuck, it this is on a new system that hasn't had any beta installed. Message is like "Cant Determine valid ordering" And the unistall tool doesn't work for the RTM Tag: Performance issue due to Background image Tag: 101629
  - 19
    - Saving settings to app.config using C#? Hi, How do I save updated values for Application Settings defined with an Application scope? I created the Application Settings using the Project Properties dialog in VS2005. I am trying to create a dialog box where users can save their preferences. The dialog reads values from the app.config, then update those values. I want these setting to apply to all users of the application. I have tried code like the following: mySettings["Latitude"] = decimal.Parse(txLat.Text); mySettings["Longitude"] = decimal.Parse(txLon.Text); mySettings.Save(); The code runs but does not save the settings. Thanks Jeff. Tag: Performance issue due to Background image Tag: 101621
  - 20
    - ClickOnce and Firefox How can I get ClickOnce to work with a browser other than IE? I was reading http://blogs.msdn.com/saurabh/archive/2006/03/02/541988.aspx But couldn't figure out how to "all you need to do is generate the shortcut file " How do I generate the shortcut file? Tag: Performance issue due to Background image Tag: 101620
  - 21
    - CancelButton & ShowDialog Hello there, I have a form that gets shown using the ShowDialog() method. This form then has it's accept and cancel button properties set. If hte user hits the cancel button / hits ESC, the form is closed and they're returned to the parent form. If the use then clicks the accept button / hits enter, a different part of the form become enabled for them to work with. Here's where I'm running into a bit of a problem: When I enable this new part of the form, I also change the forms Accept & Cancel button properties to a different set of buttons to save / cancel data changes. If the user hits the second cancel button, no changes occur, the new part of the form becomes disabled again, and the control focus is returned to first part of the form (which was also disabled when the second part was enabled). However, in my testing, if the user hits the ESC key, the form is closed no matter what is in the button event handler. From my trial and error testing, it seems that this is a global property of any dialog that is displayed using ShowDialog, and has it's CancelButton property set. Now, I've coded up a work around for this by having the cancel button set a form variable, and then writing a Closing event handler to check to see if that variable is set. But that seems like a poor way of doing it, and that there should be another option. Any suggestions / comments? Thanks Tag: Performance issue due to Background image Tag: 101619
  - 22
    - link two datagridviews? hi, i have two tables, related by a one to many relationship. i want a form with both tables showing, and when i click on a record in the 'one' datagridview, i want the 'many' view to show only the related records. also...i want to be able to see all the records in the 'many' view when i want. and...i want both the 'one' and 'many' views to have navigation menu strip. i've been searching around and have created a relation between the two table adapters, but am not sure how to make the form behave the way i want? i would think this could be pretty automatic, so i am holding off writing code for click events until i hear if there is a better way. thanks! Fred Tag: Performance issue due to Background image Tag: 101618
  - 23
    - Form resource files Hi there. I apolgize for posting this again (from June 2nd) but I've been researching for many days now with no success. I have an app that will be reading arbitrary ".resx" or "resources" files passed on the command line for instance. Given only a resource file IOW, does anyone know: 1) How the app can determine if the passed resource file contains (localized) form resources (i.e., it stores a form) 2) If it does contain (localized) form resources, how can I then generate that form dynamically Note that the native .NET utility "Winres.exe" is able to do this but I can't figure out how (not without using techniques that appear to be undocumented). Any help would be greatly appreciated. Thanks. Tag: Performance issue due to Background image Tag: 101617
  - 24
    - Word Document From Windows Form Project Hi, In my VB.net windows form, I use a Word application with VSTO. I'd like to after the button click event the Word document appears. Please some help!! Bye Cris Tag: Performance issue due to Background image Tag: 101612
  - 25
    - ClickOnce and installaion icon When a ClickOnce app is being installed there is a window that says "Installing" which has the application name, an icon (defult square windows icon) and a progress bar. Our app does have a custom icon set,but it doesn't get used in this windows. I have looked all over, even checking into custom comman line build of the manifest, but don't see how to get OUR icon into that window during installation/updating. Does anyone know how to do this? thanks Julie Lerman Tag: Performance issue due to Background image Tag: 101610

I have my base form which has background image , tool bar etc,All other
forms inherit it. The background image size is 34kb and it is in Jpeg
format.All the other forms also has many images since we have unique look and
feel. The issue I am facing is performance .
Application works fast when I don't have background image on my base form (
in turn we don't have any background image for any of the form), But when I
apply background image for the base form or individual form , screen loads
slowly ie.. the controls on the screen loads slowly .
is there any way to overcome this problem
Technology - Windows form in VB.Net

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