Re: How to avoid flicker when adding controls to a panel?

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  - 1
    - How to avoid flicker when adding controls to a panel? Hi, I've got a flickering-problem when I try to add controls to a panel (with flow layout) at runtime. My code executes the following steps: public void BuildView() { ... // suspend layout to not perform layout each time an item is added mFlowLayoutPanel.SuspendLayout(); // remove all elements from the panel: mFlowLayoutPanel.Controls.Clear(); // in a loop I add new items to the panel: foreach (... in ...) { Panel panel = new Panel(); // set size of the panel: panel.Size = MaxSize; // MaxSize is a constant value // then the color of the panel is set panel.BackColor = Color.CornflowerBlue; // after all the panel is added the the panel with the flow layout mFlowLayoutPanel.Controls.Add(panel); } mFlowLayoutPanel.ResumeLayout(true); } Every time the method BuildView() is called, the panels are flickering. What went wrong? I thought that SuspendLayout() and ResumeLayout() will avoid that? How can I avoid flickering every time my panels are added to the flow layout panel? Thanks a lot for your answer in advance. Best regards, Ralf Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110747
  - 2
    - Datagridview and the Enter Key Hi all, I have a datagrid that doesnt allow the user to edit. When the user clicks a row, the whole row gets selected. I'd like it so that when the user has a row selected and presses enter, a new form is opened and passed data from the row. At the moment, when I press enter, I can get the window to open, but the selected row moves down one. Is there any way I can surpress this behavior when pressing enter? Many thanks Simon Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110743
  - 3
    - Child form focus problem Hi all, An application I am woking on consist of a main form. On the main form there are several possible ways for the user to open a non-modal child forms to display even more information. The problem I am encountering is about loss of focus. Let's say here, that initialization of the child form takes about =BD second, from the point where the window is first shown to the point where all controls have been rendered and set with data. Now, on the main form there is a datagridview which is updated on intervals. The problem occurs the user clicks a button to open a child form. The child form is created. But before initialization of the child form has finished, the DataGridView on the main form is updated. Seemingly because of this, the main form gets focus and is moved to the front, and the child form is moved to the back. The user can manually put focus on the child form again and continue working, but tuhis is a behaviour that is very anoying to the end users. Have any of you encountered something like this before? The non-modal strategy is by design. The users want to be able to go back to the main form, without closing the child form. Therefore, I'm searching primarily for any help on the focus problem, and will only use a modal child form strategy if no resolution to the problem can be found. Thanks in advance, Christer Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110739
  - 4
    - Windows Form App and VPN I have some clients who have users who reside outside of the company's network. The company is going to allow remote access through a VPN on the server for access to the SQL Server database. I want to have my forms app which will run on the client machine to automatically open the VPN when the program starts and close it when the program ends. That way, the clients doesn't have to set anything up and they don't have to worry about how the data is accessed. Is it possible to this from a windows form app and if so what operating systems would the client have to be running in order to do this? Bill Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110729
  - 5
    - OnPaint automatically call e.Graphics.Clear()? Hello. I have a question about OnPaint override. For example, if i have the following code in my inherited form class, private Brush _brush = Brushes.Black; private RectangleF _rect = new RectangleF(0,0,100,100); private int counter =0; protected override void OnPaint(PaintEventArgs e){ if (counter==0){ counter++; e.Graphics.Clear(Color.White); e.Graphics.DrawString("Test", this.Font, _brush, _rect); } } I expect the OnPaint method will do nothing after the first call. That means, the string "Test" should stay on screen if the form is not resized/moved/covered by other windows. However, in reality, the OnPaint do the e.Graphics.Clear() automatically. I'd like to know if that is possible for me to stop that behavior. In my application, my form contains many individual text strings. The strings are updated periodically individually. I would like to render the updated strings only, not rendering the whole thing for every string update. Thank you very much for your help! Gilbert Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110726
  - 6
    - mouse move I want to detect and receive a event to my MDI window when the moves outside of the window.. I am unable to receive events. I know there is a case of sending a manual message (George Shepherd's Win FAQ) before opening Top Level windows or doing anything that take mouse focus away from the MDI window. Considering the scope of our application, this I feel might be an effort. Is this the only way? or any other way possible? VJ Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110725
  - 7
    - Filtering key strokes Hi, having a card reader attached to the PS/2 keyboard interface, I would like to filter the keyboard input, so that the input from the card reader does not reach the GUI controls. I tried setting KeyPreview=true on the form and catched all input with the KeyDown event. In order to detect, if the input comes from the card reader, I need to check a sequence of at least 10 keys. So I collect the keys in KeyDown and if it's a card reader sequence, I trigger a special action for it. If it's normal user input, I need to "forward" the collected key strokes to the form. The second part is the complicated one. Having a sequence of key strokes in an array of type System.Windows.Forms.Keys, how do I resend these to the application? Sendkeys only accepts a string and seems to not support all values of the System.Windows.Forms.Keys enum. Is there maybe a way to resend keystrokes using the integer values captured from the KeyValue member of the KeyEventArgs? bye, Marc T. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110724
  - 8
    - ClickOnce & proxy authentification We have developed a VisualStudio 2005 smart-client application which we deploy using .NET framework 2.0 ClickOnce. We are experiencing difficulties deploying in certain corporate environments: clients that use proxy authentification simply cannot install unless they disable the proxy which is usually not an option. Apparently this is a known issue with ClickOnce and Microsoft has released a HotFix for it: http://support.microsoft.com/kb/917952/en-us Could we please receive a copy of this HotFix? This is a huge and recurring problem that makes us look bad. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110720
  - 9
    - Outlook Express Newsgroups How do I download all messages in a newgroup? -- Nick Haury Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110717
  - 10
    - Forms and Labels I wonder if you could help. The event handler code below, will allow the user to change the phone number and write it on a label of a message box. I want to replace the message box with a dialog box. Can anybody help me replace the message box below to a dialog box. In other words. I want to write the new phone number on a label (named "labe1")of a dialog box (named "dialog2),instead of writing the new phone number on the label of a message box. private: System::Void dialogBtnItem_Click(System::Object * sender, System::EventArgs * e) { // Create the dialog MyDialog* box = new MyDialog(); //Fill in the initial data box->Phone = S"(650)123-3456)"; // <------ This is the phone number to be changed //Show dialog if (box->ShowDialog() == DialogResult::OK) { MessageBox::Show(box->Phone); //<-----I tried to change this line } } Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110713
  - 11
    - Catching Ctrl + Click on a checkbox Is it possible to identify when the Ctrl Key is down whilst clicking on a checkbox on a windows form? I have a checkbox on a User Control on a Tab on a windows form. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110712
  - 12
    - What are my options in this Windows App? I am creating a Windows Forms app that will use SQL Server as the database. The app will be used in the following ways. 1. It will be used in the Clients office where the app will sit on the clients desktop pc and connect to the database on the server. 2. It needs to be used by those outside of the office network. ex. a remote office that is not a part of the network where the database is residing. 3. I might have users on the road that with wi-fi access need to connect to the office database. I don't want to create a browser based app using ASP.Net. I don't want to use Citrix. Here's what I think are my options. Am I missing any? which would you recommend? 1. Create a windows forms app that sits on the client and a web service that sits on the server that connects to the database. The user does something on the client and a call is made for data to the webservice which returns data to the client. 2. The app creates an opens up a port upon startup and accesses data directly and then closes the port upon exiting the app??????????????????? Any other suggestions or recommendations? Bill Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110709
  - 13
    - SelectedNode Hi everyone again, How to check SelectedNode's child? There is ->SelectedNode->Parent, but how to check/control a child? Thanks in advance, gmb Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110704
  - 14
    - Menu Control ( 2.0) Is there any way I can make the main menu bar for a MDI windows forms application, floating and hidden.. anybody know of the trick? Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110697
  - 15
    - Accessing a forms control menu I've got some base classes I'm creating with a specific set of functionality that needs to be present throughout our app. I'm not finding any way to programmatically get to the control menu in the upper left of each window. I've always been able to add to this in the past. How do I get access to this now? We're using VStudio Team Suite .NET 2.0.... Thanks! Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110696
  - 16
    - Detecting a tray control Hi there, I need to determine if an arbitrary control appears on a form's design tray or the actual form itself (or other parent container). Is the following check reliable or is there an official way (or something cleaner). Thanks. public static bool IsTrayControl(Control control) { return (TypeDescriptor.GetProperties(control)["TrayLocation"] != null); } Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110694
  - 17
    - is there a 'flush' type method in VB.Net Here's the scenario - I'm iterating through a directory, dynamically adding picturebox controls to a container, with a For Loop On screen, you don't see anything until it actually fully populates In ASP.Net, there is a command - Response.Flush - you can put this before the end of the loop, to make the page show what's just been done. Is there anything like this in VB.Net? (I hope I've fully explained the need) Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110690
  - 18
    - ReportViewer and Terminal Services I have an application with vb.net using reporting services local (rdlc). When I run under windows, it prints fine. When I run under Terminal Services, sometimes it takes 3 times to print. Print, and it looks like it did, but it never appears. Notepad, office apps seem to print fine. I was able to trace it. I click the Print button on the dialog box. I see the print entering the print queue, but it immediately is deleted. I print a second time, and it works. It is reproducable under terminal services. It works fine under normal Windows. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110682
  - 19
    - Disable Form Resizing How do I disable form resizing for users in Winforms 2.0? Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110676
  - 20
    - copying an event handler in vb.net I am using vb.net and basically I am trying to build a series of buttons at runtime based on menu entries created at design time on a ContextMenuStrip What I would like to do is make the Click event of a button created at runtime execute the same event handler as the Click event of the ToolStripMenuItem. so in pseudo code newButton.OnClick = menuItem.OnClick I wondered is this possible via reflection to get the event handlers address to use in an AddHandler call for the button, but I am not sure how to go about this. Thanks Adrian Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110674
  - 21
    - Prevent a window from moving when taskbar gets autohide disabled. I have a windows form that shifts position when the taskbar autohide property is disabled. The windows does not move back to the original position when the autohide property is turned back on. I have not been able to catch the position changing anywhere in my code and so I am thinking that it is taking place inside the Form class. I have tried the Locked property for my form but it doesn't make a difference. Any suggestions? Thanks, Ken Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110673
  - 22
    - Internal error in ToolStrip Please help! System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index at System.Collections.ArrayList.get_Item(Int32 index) at System.Windows.Forms.ToolStripItemCollection.get_Item(Int32 index) at System.Windows.Forms.ToolStrip.OnPaint(PaintEventArgs e) at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer, Boolean disposeEventArgs) at System.Windows.Forms.Control.WmPaint(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ToolStrip.WndProc(Message& m) at System.Windows.Forms.StatusStrip.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110672
  - 23
    - DGV CellValidating event not letting new forms be focused I have a form with a DataGridView in an MDI application that handles the CellValidating event. If I set DataGridViewCellValidatingEventArgs.Cancel to true, I can't navigate off the cell within the form as expected. However, If I use the MDIParent to create a new instance if the child form, the focus remains on the error cell in the first form even with the new form in the foreground. The behavior that I would like to create here would be for the focus to remain in the error cell when that form is in focus, but for new forms to be able to be created and focused on their own. What is the best way to achieve this? Thanks in advance. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110671
  - 24
    - DataGrid Binding / Threading Slow Updates I have a VB.NET Windows Form that contains a datagrid control that uses databinding to an object. I have tried using threading and updating the databound object (by marshalling to the UI thread) by using a separate thread however there are still delays when 32000 rows / items are added. It stops other windows from responding for a brief second. I also have an animated gif on the form and that stops responding. Is is possible to have the datagrid run completely within a separate thread, or have two UI threads run in the form so that the form and animated gif is not affected when the datagrid updates? Any help with this would be appreciated Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110665
  - 25
    - DataGridViewComboBox required two times click to select item hi guys I put DataGridViewComboBox in datagridview .but its required two times click. i want such that when user click once on DataGridViewComboBox cell, dropdown should comes.I tried but didn't find the exact way to do that. U have any idea plez mail . Thanks Neeraj Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110664
- Next
  - 1
    - Validating bound text box I have a windows form (.net 2.0). On this form I have a BindingSource. I set the DataSource to a dataset that is created in code then "built" using the ReadXMLSchema method. I have have bound a textbox to one of the fields in that BindingSource that is of type int. If I type anything but an int, I cannot do anything. I cannot close the form, I cannot set focus on another control. No exception is thown. The DataError event on the BindingSource doesn't fire. The Validating event on the TextBox fires and in fact I have had to check the value so that I can raise a message if the item is not a number. But I would rather catch whatever it is that is stopping me from leaving that control and displaying an error at that point. -- Russel Loski, MCSD.Net Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110660
  - 2
    - Dynamically Adding Controls to Forms Hi , I am required to create a Table like structure in Windows forms to which i need to add controls dynamically. what is the best control available for this requirement. i tryed using TableLayoutPanel but failed coz each row is accepting only one control. Thanks in Advance Happy programming KS. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110657
  - 3
    - How to show the standard call log winform through code?? I have developed a pocket pc 2005 application in C#,which basically search from the call log entries and shows those entries. Now i want to list down the certain calls e.g. i want to list down all the calls of a particular contact. My first query is that can i sort the call log entries by that parameter? Secondly if i am able to do that then can i display it like the same way WM 5.0 shows it.(means standard call log display form)?? Is there any shell API to do that?? Please help. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110656
  - 4
    - clickOnce (more instances of installation) Hi, I have created a basic application, which is deployed as clickOnce and has some dll and one config file. Application 1 = main .exe file + dlls + one specific .config file Application 2 = main .exe file + dlls + another specific .config file ... What do I need to set to install them as completely independent ? I tried to change everything in ClickOnce Deployment Manifest file, but one application still updates the second one... In ClickOnce Application Manifest file, it seems that there is nothing specific changeable, but maybe I'm wrong. (I need also have two shortcuts in Start/Programs, but as I said, one installation always replaces the another... ) Thank you very much for any answer or idea Ondrej Dobecka ondradocasny@community.nospam ondrej.dobecka@tietoenator.com Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110655
  - 5
    - clickOnce (more instances of installation) This is a multi-part message in MIME format. ------=_NextPart_000_002F_01C78282.8822A640 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable Hi, I have created a basic application, which is deployed as clickOnce and = has some dll and one config file.=20 Application 1 =3D main .exe file + dlls + one specific .config file Application 2 =3D main .exe file + dlls + another specific .config file ... What do I need to set to install them as completely independent ? I tried to change everything in ClickOnce Deployment Manifest file, but = one application still updates the second one...=20 In ClickOnce Application Manifest file, it seems that there is nothing = specific changeable, but maybe I'm wrong. (I need also have two shortcuts in Start/Programs, but as I said, one = installation always replaces the another... ) Thank you very much for any answer or idea Ondrej Dobecka ondrej.dobecka@tietoenator.com ------=_NextPart_000_002F_01C78282.8822A640 Content-Type: text/html; charset="iso-8859-2" 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-8859-2"> <META content=3D"MSHTML 6.00.2900.3059" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT face=3DVerdana size=3D2>Hi,</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2>I have created a basic application, = which is=20 deployed as <STRONG>clickOnce </STRONG>and has some dll and one config = file.=20 </FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2><STRONG>Application = 1 =3D</STRONG> main=20 <STRONG>.exe </STRONG>file + <STRONG>dlls=20 </STRONG>+      one = specific <STRONG>.config=20 </STRONG>file</FONT></DIV> <DIV><FONT face=3DVerdana = size=3D2><STRONG>Application 2 =3D</STRONG> main=20 <STRONG>.exe </STRONG>file + <STRONG>dlls </STRONG>+ another=20 specific <STRONG>.config </STRONG>file</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2>...</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2>What do I need to set to install=20 them<STRONG> </STRONG>as<STRONG> completely independent=20 ?</STRONG></FONT></DIV> <DIV><STRONG><FONT face=3DVerdana size=3D2></FONT></STRONG> </DIV> <DIV><FONT face=3DVerdana size=3D2>I tried to change everything in=20 <STRONG>ClickOnce Deployment Manifest </STRONG>file, but one application = still=20 <STRONG>updates </STRONG>the second one... </FONT></DIV> <DIV><FONT face=3DVerdana size=3D2>In ClickOnce Application Manifest = file, it seems=20 that there is nothing specific changeable, but maybe I'm = wrong.</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2>(I need also have two shortcuts in=20 Start/Programs, but as I said, one installation always replaces the = another...=20 )</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2>Thank you very much for any answer=20 or idea</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2>Ondrej Dobecka</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2><A=20 href=3D"mailto:ondrej.dobecka@tietoenator.com">ondrej.dobecka@tietoenator= .com</A></FONT></DIV></BODY></HTML> ------=_NextPart_000_002F_01C78282.8822A640-- Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110653
  - 6
    - Change the Internet Explorer Window Title in C# HI I am using Visual Studio.Net 2003 and using C# I would like to know how is it possible to change the Internet explorer window title? ie. i want to get rid of "Microsot Internet Explorer" that appears after my application name on the title bar and if possible, get rid of the IE logo at the start of the address bar. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110652
  - 7
    - System.Configuration.ConfigurationErrorsException saving config file after encrypting with RsaProtectedConfigurationProvider Hi, One of my users is getting a System.Configuration.ConfigurationErrorsException when my Windows Forms application tries to encrypt and save the application config file, but it only happens for him and no other users!? I don't really know anything about the security classes so don't have any idea where to start looking, but would love some suggestions. He gets the exception when running the application on other users' machines for whom it works fine, and other users are able to log in on his machine and use the application. So I'm guessing it's something to do with his profile but I have no idea where to look. He and all other users have the same .NET version; I installed it as part of the application install and noone had previous .NET runtimes on their machine. In my live application I get a standard windows box saying the program had a problem and had to be closed, do I want to send info to MS. (That's despite having set a ThreadException handler which normally logs and shows a message for all unhandled exceptions, which is slightly odd in itself.) I created a test app to determine where it's failing, and it crashes in this method: private void btnProtectConfiguration_Click(object sender, EventArgs e) { string provider = "RsaProtectedConfigurationProvider"; Configuration config = null; config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); ConfigurationSection section = config.ConnectionStrings; if ((section.SectionInformation.IsProtected == false) && (section.ElementInformation.IsLocked == false)) { // Protect (encrypt) the "connectionStrings" section. section.SectionInformation.ProtectSection(provider); // Save the encrypted section. section.SectionInformation.ForceSave = true; config.Save(ConfigurationSaveMode.Full); } MessageBox.Show("ok"); } The info in the standard .NET exception handler is at the bottom of this post. In my test app he is able to save the config file fine without encryption, using this code: private void btnSaveConfig_Click(object sender, EventArgs e) { // Same stuff as ProtectConfiguration, but without the protection. // Checks if we can open and save the config file. Configuration config = null; config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); ConfigurationSection section = config.ConnectionStrings; section.SectionInformation.ForceSave = true; config.Save(ConfigurationSaveMode.Full); MessageBox.Show("ok"); } He's also able to do RSA encryption and decryption using the RSACryptoServiceProvider class; I included in my test app the sample code here: http://msdn2.microsoft.com/en-us/library/system.security.cryptography.rsacryptoserviceprovider(VS.80).aspx If anyone can suggest why this exception could be occurring and why it's attached to just this user I'd greatly appreciate it! fyi the reason I'm doing this is that during application install my application opens and encrypts the config file so connection details can't be read by the casual observer. Not perfect security but good enough, providing it runs! many thanks, - Rory ************** Exception Text ************** System.Configuration.ConfigurationErrorsException: An error occurred executing the configuration section handler for connectionStrings. --- > System.Configuration.ConfigurationErrorsException: Failed to encrypt the section 'connectionStrings' using provider 'RsaProtectedConfigurationProvider'. Error message from the provider: Object already exists. ---> System.Security.Cryptography.CryptographicException: Object already exists. at System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32 hr) at System.Security.Cryptography.Utils._CreateCSP(CspParameters param, Boolean randomKeyContainer, SafeProvHandle& hProv) at System.Security.Cryptography.Utils.CreateProvHandle(CspParameters parameters, Boolean randomKeyContainer) at System.Security.Cryptography.Utils.GetKeyPairHelper(CspAlgorithmType keyType, CspParameters parameters, Boolean randomKeyContainer, Int32 dwKeySize, SafeProvHandle& safeProvHandle, SafeKeyHandle& safeKeyHandle) at System.Security.Cryptography.RSACryptoServiceProvider.GetKeyPair() at System.Security.Cryptography.RSACryptoServiceProvider..ctor(Int32 dwKeySize, CspParameters parameters, Boolean useDefaultKeySize) at System.Security.Cryptography.RSACryptoServiceProvider..ctor(CspParameters parameters) at System.Configuration.RsaProtectedConfigurationProvider.GetCryptoServiceProvider(Boolean exportable, Boolean keyMustExist) at System.Configuration.RsaProtectedConfigurationProvider.Encrypt(XmlNode node) at System.Configuration.ProtectedConfigurationSection.EncryptSection(String clearXml, ProtectedConfigurationProvider provider) at System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.EncryptSection(String clearTextXml, ProtectedConfigurationProvider protectionProvider, ProtectedConfigurationSection protectedConfigSection) at System.Configuration.Internal.DelegatingConfigHost.EncryptSection(String clearTextXml, ProtectedConfigurationProvider protectionProvider, ProtectedConfigurationSection protectedConfigSection) at System.Configuration.Internal.DelegatingConfigHost.EncryptSection(String clearTextXml, ProtectedConfigurationProvider protectionProvider, ProtectedConfigurationSection protectedConfigSection) at System.Configuration.MgmtConfigurationRecord.GetConfigDefinitionUpdates(Boolean requireUpdates, ConfigurationSaveMode saveMode, Boolean forceSaveAll, ConfigDefinitionUpdates& definitionUpdates, ArrayList& configSourceUpdates) --- End of inner exception stack trace --- at System.Configuration.MgmtConfigurationRecord.GetConfigDefinitionUpdates(Boolean requireUpdates, ConfigurationSaveMode saveMode, Boolean forceSaveAll, ConfigDefinitionUpdates& definitionUpdates, ArrayList& configSourceUpdates) --- End of inner exception stack trace --- at System.Configuration.MgmtConfigurationRecord.GetConfigDefinitionUpdates(Boolean requireUpdates, ConfigurationSaveMode saveMode, Boolean forceSaveAll, ConfigDefinitionUpdates& definitionUpdates, ArrayList& configSourceUpdates) at System.Configuration.MgmtConfigurationRecord.SaveAs(String filename, ConfigurationSaveMode saveMode, Boolean forceUpdateAll) at System.Configuration.Configuration.SaveAsImpl(String filename, ConfigurationSaveMode saveMode, Boolean forceSaveAll) at System.Configuration.Configuration.Save(ConfigurationSaveMode saveMode) at DotNetTester.frmDotNetTester.btnProtectConfiguration_Click(Object sender, EventArgs e) in C:\code\CAP\DotNetTester\DotNetTester \Form1.cs:line 39 at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) ************** Loaded Assemblies ************** mscorlib Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.42 (RTM.050727-4200) CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll ---------------------------------------- DotNetTester Assembly Version: 1.0.0.0 Win32 Version: 1.0.0.0 CodeBase: file:///C:/Documents%20and%20Settings/Ravi/Desktop/DotNetTester%20v1.0/DotNetTester.exe ---------------------------------------- System.Windows.Forms Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.42 (RTM.050727-4200) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll ---------------------------------------- System Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.42 (RTM.050727-4200) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Drawing Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.42 (RTM.050727-4200) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- System.Configuration Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.42 (RTM.050727-4200) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll ---------------------------------------- System.Xml Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.42 (RTM.050727-4200) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll ---------------------------------------- System.Security Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.42 (RTM.050727-4200) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Security/2.0.0.0__b03f5f7f11d50a3a/System.Security.dll ---------------------------------------- Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110651
  - 8
    - System.Configuration.ConfigurationException: Child nodes not allowed Hello everyone, I have a small windowsforms app developed for framework 1.1 that uses a configsection in the .config file. Everything works ok on most boxes... On one particular pc i get the error "System.Configuration.ConfigurationException: Child nodes not allowed" while trying to read the configuration session using: Dicto = CType(ConfigurationSettings.GetConfig(SECTION_NAME), IDictionary) Dicto is an IDictionary... Seems an installation issue, but have googled a lot finding nothing... Thanx in Advance Paolo Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110650
  - 9
    - Form.Closing event not fired always when i call Form.Close method Hi, Form1 form1 = Form1; //Form2 is created and closed inside Form1. When I call form1.form2.Close() method the following method is called when I run the application in few machine but not in others. private void Form2_Closing(...) Any clues on this? Thanks in advance. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110648
  - 10
    - How to install a font in VB.Net? How can you 'install' a font, using VB.Net? I tried System.IO - just copying it, but it didn't add it to the system's list of installed fonts immediately. when my app loads, it populates a combobox with the installed fonts - then, I need to install a font, clear the list, and then fill the list again, including the new font. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110647
  - 11
    - Get computer's Windows or Windows Fonts directory In vb.net 2005 - I know that to get the system directory, it's system.environment.systemdirectory. I need to find the fonts directory - - which is normally inside the Windows directory - so how can I locate either or both of these (if I find the windows directory with a global variable, then I can at least concatenate '\fonts' to it)? Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110643
  - 12
    - Application.Run questions I need create winForm application with this architecture I have code [STAThread] static void Main() { Application.Run(); } Now I need show Icon in tray bar and attach some "context menu strip" to this icon. So when user select one menu item - for example with name "settings" I need show Settings window and after user change it and close window I need get it on "tray bar thread" (my main thread) and keep wating some other action from user. So. I don't need main window for this app and I have some question here 1) The first question can I show icon in tray if I didn't create form? 2) How show notify icon without creating form? 3) as I see after main thread run this Application.Run() this thread became frozen. So How I can continue work with it? Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110642
  - 13
    - ClickOnce broken One of our users has a problem reinstalling ClickOnce after running System Restore and uninstalling our ClickOnce application. They get the following error when trying to reinstall the ClickOnce application. Why does this problem happen and how can I fix it? PLATFORM VERSION INFO Windows : 5.1.2600.131072 (Win32NT) Common Language Runtime : 2.0.50727.42 System.Deployment.dll : 2.0.50727.42 (RTM.050727-4200) mscorwks.dll : 2.0.50727.42 (RTM.050727-4200) dfdll.dll : 2.0.50727.42 (RTM.050727-4200) dfshim.dll : 2.0.50727.42 (RTM.050727-4200) SOURCES Deployment url : file:///M:/Releases/Head%20Office/Willis/ClickOnce/AscentTechnologyLimited.Willis.application ERROR SUMMARY Below is a summary of the errors, details of these errors are listed later in the log. * Activation of M:\Releases\Head Office\Willis\ClickOnce \AscentTechnologyLimited.Willis.application 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 * [19/04/2007 10:16:46 a.m.] : Activation of M:\Releases\Head Office \Willis\ClickOnce\AscentTechnologyLimited.Willis.application has started. ERROR DETAILS Following errors were detected during this operation. * [19/04/2007 10:16:46 a.m.] 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.SubscriptionStore.CheckAndReferenceApplication(SubscriptionState subState, DefinitionAppId appId, Int64 transactionId) at System.Deployment.Application.DownloadManager.DownloadDeploymentManifestDirectBypass(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, SubscriptionState& subState, IDownloadNotification notification, DownloadOptions options, ServerInformation& serverInformation) at System.Deployment.Application.DownloadManager.DownloadDeploymentManifestBypass(SubscriptionStore subStore, Uri& sourceUri, TempFile& tempFile, SubscriptionState& subState, IDownloadNotification notification, DownloadOptions options) at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut) at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state) COMPONENT STORE TRANSACTION DETAILS No transaction information is available. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110640
  - 14
    - windows program deploy question Hi, I did a batch build on a 2005 .net windows app and copied the exe file to a machine running windows windows 2000. When I tried to run it I got the error missing dll mscoree.dll. I then tried to run it on another machine with windows xp and the error was missing .net frame work. Just wondering to install on the windows 2000 machine should I do a project installer and if I do this will I still need to install the .net framework on the 2000 machine? thanks. -- Paul G Software engineer. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110631
  - 15
    - Activation context generation failed Hello When i add new resource files to my usercontrol project and i compile the project a i get a error message in the event log Activation context generation failed for "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AL.exe". Dependent Assembly Microsoft.VC90.CRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="9.0.20129.4864" could not be found. Please use sxstrace.exe for detailed diagnosis. i am running Windows Vista en VS2500 + SP1+Vista SP 1 update is this a know problem ? kind regards Dieter Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110630
  - 16
    - Activated and Enter events not called on MDI children I'm having trouble with the MDI activate chain of events that happen as a result of a Ctrl+Tab event in my client's MDI application. A mouse click on an inactive MDI child executes normally but Ctrl+Tab event processing handling is only partially handled. The active MDI child window is changed but this is not being reflected in the MDI parent because the Activated and Enter events attached to the MDI children are not being called. Even though the next MDI child has been activated by the Ctrl+Tab, the MDI parent is unaware of the change. The application itself is pretty complicated with a number of third party controls involved to obfuscate the issue. In Win32, I'd simply intercept the WM_ACTIVATE or WM_MDIACTIVATE message and I suspect that the Activated event is attached to that message. Since the MDI child is properly changing its Z state and painting itself in a fashion consistent with activation, I'm pretty sure that the Ctrl+Tab is being at least partly processed. What can I do to narrow down the location of the failure or otherwise circumvent the problem by detecting the mdi activation event upstream? -- Richard Lewis Haggard www.Haggard-And-Associates.com Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110628
  - 17
    - Shared settings I have a solution with multiple projects, each with its own EXE, and its own Properties.Settings.... They are all part of the same solution. I want to have a set of settings that are shared by all of the EXEs. That is, each project will have its own set of settings that are a superset of the solution settings. Under 1.X with appSettings, I could do this with by specifying a file= attribute (KB article ID 555396) and the target was integrated into the settings of all referencing projects. Under 2.0, appSettings is replaced by applicationSettings and the file= attribute is gone. http://www.devx.com/dotnet/Article/34273/1954?pf=true discusses how to distribute settings in multiple files, but the resulting files must be stored in the Properties folder of the project and therefore can't be shared by multiple projects. Can each project's settings be set up so as to derive from the solution level settings? I'm sure that there must be a way to handle this under 2.0, but I can't find it. Thx Marc Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110623
  - 18
    - How to find Internet IP address from vb.net Please give me some advices. I know how to find my machine IP address, but don't know how to find Internet IP. Please help me. Thanks, Tim Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110622
  - 19
    - Crystalreportviewer Continuous Pages? I am using the crystalreportviewer on a windows form, works great, but my question is I want to view the report using continuous pages, not having to go to the toolbar to say next page. how can this be done? i see in the web version of the viewer a "seperatepages" boolean property, but don't see this in the forms version. Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110621
  - 20
    - Hexadecimal displayed instead of Integer Hello all, I have a c# project, while debugging I get the object values in Hexadecimal format, how do I get it Integer format by default, in debugging mode. I dont want to see it in Hexadecimal format. do I have to make any setting in visual studio.net 2005 Thanks, Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110619
  - 21
    - SHGetFileInfo I am using SHGetFileInfo to get the list of icons for a bunch of files, and taking those icons and putting them in an ImageList. The ImageList is then being used with a ListView control to display the list of files and their associated icons. Unfortunately the alpha transparencies appear as black in the icons. To resolve this I tried (as per the microsoft article: http://msdn2.microsoft.com/en-us/library/aa289524(VS.71).aspx) to add a manifest to the exe file, I also changed the colordepth of the ImageList to: ColorDepth.Depth32Bit. The icons still have a black border. I am using VS2005, .NET framework 2.0 on an XP machine. The manifest I used is below. Can anyone suggest anything else I can do to get the icons without the black border? Thanks. <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <assemblyIdentity version="1.0.0.0" processorArchitecture="X86" name="Microsoft.Winweb.WindowsApplication6" type="win32" /> <description>.NET control deployment tool</description> <dependency> <dependentAssembly> <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="X86" publicKeyToken="6595b64144ccf1df" language="*" /> </dependentAssembly> </dependency> </assembly> Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110615
  - 22
    - dual hard drive i was trying 2 insall windows on a intenal haeddrive for my laptop. i gave up on it because i keep getting a error message, so i took off the harddrive. now when it trys to boot up it gives me the option of booting up from two windows how do i take that off? Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110607
  - 23
    - Error when calling a webservice from a windows service Hi, I am trying to call a webservice from a windows service application. It works only if I launch the windows service app from VS.Net 2005 (Worked around from Main()) or from a winform test application. However, it generates a kind of security error after I install and start the service in my Window Server machine. I believe that it is related to authentication. The following is the sample code: HttpWebRequest obj = (HttpWebRequest)WebRequest.Create(webServiceUrl); obj.Method = "POST"; obj.ContentType = "application/x-www-form-urlencoded"; obj.Headers.Add("Authentication", Password); StreamWriter sw= new StreamWriter(obj.GetRequestStream()); sw.Write(Query); The exception returned: "System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, ...." I did some research online. Many people got similar errors. However, I have not found a solution yet. Any solution or suggestion is appreciated. GD Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110600
  - 24
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  - 25
    - Two-layered image control Hi to all. I need to create a custom control which does the following: - It should contain a first, fixed image. - It should manage a second image, which will change programmatically. - It should display the second image on top of the first one, updating it in response to user events; the second image will of course have a transparent background. - The second image should be accessible outside the control, and wil be used for printing on some paper forms which are, as you probably guessed, the same as the first image; this is the reason for having two separate images. I'm trying to develop this, but I'm quite confused about the various System.Drawing classes and which Windows Forms control is the best to use as my control's base class. I don't thoroughly understand the process of painting a control, and the relationships between an Image, a Drawing object and the control. My initial guess was to use a PictureBox, set its BackGroundImage property to the fixed image and use the Image property for my drawing... but I don't know how to do manual drawing this way. Is this a good approach, or there is a better one? Also, I know very little about printing with Windows Forms. What do I need for printing? An Image? A Graphics object? What else? Can someone please help? Thanks Massimo Tag: Re: How to avoid flicker when adding controls to a panel? Tag: 110598

You can minimize the flicker using interop to suspend the painting
(which is different than suspending the Layout events). Here is a FAQ
link on this.

http://www.syncfusion.com/faq/windowsforms/Search/637.aspx

=======================
Clay Burch
Syncfusion, Inc.

Top

Re: How to avoid flicker when adding controls to a panel? by Simon

Simon
Tue Apr 24 09:47:32 CDT 2007

Hi all,

I'm currently using this method to try and reduce the problem, however
there does seem to be a serious flaw:-

During the period that painting is suspended, any mouse clicks travel
through the form and are picked up by whatever is behind the form. So if
adding your control to the is anything less than instantaneous, the
user can click on the form and have the app disappear depending on whats
behind it.

Does anyone know of a way to stop this?

Thanks all

Simon

ClayB wrote:
> You can minimize the flicker using interop to suspend the painting
> (which is different than suspending the Layout events). Here is a FAQ
> link on this.
>
> http://www.syncfusion.com/faq/windowsforms/Search/637.aspx
>
> =======================
> Clay Burch
> Syncfusion, Inc.
>

Top