Chart in Visual C++ .Net Standard

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  - 1
    - How To Use Excel Charts in Visual C++ .NET on forms? Esteemed Developpers Please do allow me thank you in advance for your sincere consideration and guidance I would like to use Office Chart 10.0 on my Visual C++ .NET forms. I could not fine any document on internet related to VC++ .Net. All of the search results are about VB.NET, VC# .NET and VC++ 6.0. I am requesting you kind responses and guidances to my e-mail address, too With this, I extend you with my best Respectfully, your Mr. Alper AKCAYOZ Tag: Chart in Visual C++ .Net Standard Tag: 70581
  - 2
    - Transparancy I have a picturebox on my form, and I need to put other controls (like a panel) over the picture box, but I need the graphic to show through the panel and other controls. From my searching, I believe I have learned that this is due to a limitation / bug as controls do not allow other controls to show through. I have heard (read) that some people have overcome this though - how can I do this? Vb.Net examples / sites would be preferred. I'm okay with creating my own version of the panel control with some overrides, but I am not sure what needs to be done for 'true' transparency. Thanks for the input, Wayne P. Tag: Chart in Visual C++ .Net Standard Tag: 70578
  - 3
    - RichTextBox and Tables Hi, I have problems with the Windows.Forms.RichtextBox Control of the VS. I have a text that is written with WordPad. In this text there are tables. The cells in the tables are holding multiple lines. When I copy & paste the whole text, including the table, the table does not show up properly in the richtextbox control. The cells are only single line. The text in the cells does not wrap. The text in the cells actually leaves the cell. I created two screenshot to ilustrate the problem: Good Table in WordPad: http://www.coredumped.de/pics/rtf-good.jpg and here the table after copy and paste in the richtextboxcontrol: http://www.coredumped.de/pics/rtf-bad.jpg Is this a bug or intention that the richtextbox cant render tables properly? I realy need the feature of tables. Is there a fix for it? Thx RV Tag: Chart in Visual C++ .Net Standard Tag: 70572
  - 4
    - Importing Access Tables This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C42ADB.C7CE0A70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable All - I have the need to import an Access table from one database to = another. On my form, I have it set up so the user chooses the source = database and the destination database. The table to be imported is set = in code.=20 Anyone have links or code on where I can start? I don't even know where = to begin after getting a connection to the databases. Thanks, Brian P. Hammer ------=_NextPart_000_0008_01C42ADB.C7CE0A70 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 6.00.2800.1400" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial>All - I have the need to import an Access table = from one=20 database to another. On my form, I have it set up so the user chooses = the source=20 database and the destination database. The table to be imported is set = in=20 code. </FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>Anyone have links or code on where I can start? = I don't=20 even know where to begin after getting a connection to the=20 databases.</FONT></DIV> <DIV><FONT face=3DArial><BR>Thanks,<BR>Brian P. = Hammer</FONT></DIV></BODY></HTML> ------=_NextPart_000_0008_01C42ADB.C7CE0A70-- Tag: Chart in Visual C++ .Net Standard Tag: 70571
  - 5
    - Need help cancelling an index change in a ListView I would like to provide the user with the ability to cancel the= change of an index in a ListView (for instance if there is data= that has changed related to the ListView, etc=2E)=2E=2E=2Eand I have= been able to get the code shown below to do this, but everytime= the user indicates that he/she would like to revert to the= original selection they get prompted a second time and have to= indicate so again before the process will successfully= complete=2E Now=2E=2E=2EI am aware of the fact that the SelectedIndexChanged event= gets called twice when the index changes - I have tried to= handle that by checking for the number of SelectedIndices=2E I= have also added a user defined variable ("ListInitialized") that= causes code in the SelectedIndexChanged event handler to be= skipped when set to false=2E A few notes about the code=2E listView1 is a simple ListView with= two items in the collection each of which has one sub-item= (names or contents of items and sub-items can be anything you= want)=2E Multi-select is set to false (I am only dealing with one= selected item at a time here)=2E HideSelection is set to false= (because I am allowing the user to edit other fields and always= want the selection displayed)=2E View is set to "details" (so I= can see the sub-items)=2E FullRowSelect is set to true (each item= is treated as a single entry)=2E Can anyone tell me what is happening here? How can I get this= code to work so that a user can cancel his/her entry without= having to go through the cancellation process twice? Thanks in advance=2E lwc =09=09private void listView1_SelectedIndexChanged(object sender,= System=2EEventArgs e) =09=09{ =09=09=09if (listView1=2ESelectedIndices=2ECount > 0 &&= this=2EListInitialized) =09=09=09{ =09=09=09=09if (MessageBox=2EShow("Revert to original selection?","What= now?",MessageBoxButtons=2EYesNo) =3D=3D DialogResult=2EYes) =09=09=09=09{ =09=09=09=09=09this=2ERevertToOriginalSelection(); =09=09=09=09} =09=09=09=09else =09=09=09=09{ =09=09=09=09=09this=2ESelectedValue =3D listView1=2ESelectedItems[0]=2EText; =09=09=09=09} =09=09=09} =09=09} =09=09private void RevertToOriginalSelection() =09=09{ =09=09=09this=2ElistView1=2ESelectedItems=2EClear(); =09=09=09int i; =09=09=09ListViewItem lvi; =09=09=09for (i=3D0;i<listView1=2EItems=2ECount;i++) =09=09=09{ =09=09=09=09lvi =3D listView1=2EItems[i]; =09=09=09=09if (lvi=2EText =3D=3D this=2ESelectedValue) =09=09=09=09{ =09=09=09=09=09MessageBox=2EShow("before selecting original value"); =09=09=09=09=09this=2EListInitialized =3D false; =09=09=09=09=09lvi=2ESelected =3D true; =09=09=09=09=09this=2EListInitialized =3D true; =09=09=09=09=09MessageBox=2EShow("after selecting original value"); =09=09=09=09=09return; =09=09=09=09} =09=09=09} =09=09} -------------------------------- From: lwc ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>TeOjPRkgDESkz5l6ElT1dg=3D=3D</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70570
  - 6
    - Reset Serial Number While developing the MSI setup for my C# winforms application in Visual Studio .NET 2003 I experimented with the Serial Number and it now contains a bogus value on my test machine. This bogus serial number is faithfully being maintained on this test machine. How can I change or delete the serial number associated with this application on this machine? Is it as simple as am Orca tweak of the .msi file? -- -- Thom Little -- www.tlaNET.net -- Thom Little Associates, Ltd. -- Tag: Chart in Visual C++ .Net Standard Tag: 70566
  - 7
    - Access to other forms objects Hi guys , i have 2 win from in my app. and i have a text box on my from 1. how can i a access to this text box from form 2 ? Thanx Tag: Chart in Visual C++ .Net Standard Tag: 70565
  - 8
    - What's BooleanSwitch ? Hi guys, can any one help me to understand BooleanSwitch and TraceSwitches ? Thanx Tag: Chart in Visual C++ .Net Standard Tag: 70564
  - 9
    - Setting Window Item Properties I've got an MFC dialog window in Visual C++ .NET. There's a progress bar (IDC_PROGRESS1) that I'd like to change from visible to invisible during run-time. Can someone point the command to do this? What's the general command for changing property settings on window items from C++ .NET Thanks Tag: Chart in Visual C++ .Net Standard Tag: 70563
  - 10
    - Getting compiler error C2653 and don't know why. Hi All, I am using Visual C++ .Net to create a windows forms application and I am getting the following errors when I do a MessageBox::Show in my Form1.cpp file: Form1.cpp(19): error C2653: 'MessageBoxA' : is not a class or namespace name Form1.cpp(19): error C2660: 'System::Windows::Forms::Control::Show' : function does not take 1 arguments If I move the MessageBox::Show line into the Form1.h file, there is no problem. Any one have any ideas? Here is the sample code: Form1.cpp ----------- #include "stdafx.h" #include "Form1.h" #include <windows.h> using namespace C2653Error; int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { System::Threading::Thread::CurrentThread->ApartmentState = System::Threading::ApartmentState::STA; Application::Run(new Form1()); return 0; } void Form1::ShowAMessage() { MessageBox::Show(S"Test Message"); } Form1.h --------- #pragma once namespace C2653Error { using namespace System; using namespace System::ComponentModel; using namespace System::Collections; using namespace System::Windows::Forms; using namespace System::Data; using namespace System::Drawing; /// <summary> /// Summary for Form1 /// /// WARNING: If you change the name of this class, you will need to change the /// 'Resource File Name' property for the managed resource compiler tool /// associated with all .resx files this class depends on. Otherwise, /// the designers will not be able to interact properly with localized /// resources associated with this form. /// </summary> public __gc class Form1 : public System::Windows::Forms::Form { public: Form1(void) { InitializeComponent(); } private: void ShowAMessage(); protected: void Dispose(Boolean disposing) { if (disposing && components) { components->Dispose(); } __super::Dispose(disposing); } private: System::Windows::Forms::Button * button1; private: /// <summary> /// Required designer variable. /// </summary> System::ComponentModel::Container * components; /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> void InitializeComponent(void) { this->button1 = new System::Windows::Forms::Button(); this->SuspendLayout(); // // button1 // this->button1->Location = System::Drawing::Point(96, 104); this->button1->Name = S"button1"; this->button1->TabIndex = 0; this->button1->Text = S"button1"; this->button1->Click += new System::EventHandler(this, button1_Click); // // Form1 // this->AutoScaleBaseSize = System::Drawing::Size(5, 13); this->ClientSize = System::Drawing::Size(292, 273); this->Controls->Add(this->button1); this->Name = S"Form1"; this->Text = S"Form1"; this->ResumeLayout(false); } private: System::Void button1_Click(System::Object * sender, System::EventArgs * e) { ShowAMessage(); } }; } Also, I have tried adding all of the 'using namespace' lines that are in the .h file to the .cpp file, but no luck. Any help would be appreciated. Thanks, Richard Tag: Chart in Visual C++ .Net Standard Tag: 70556
  - 11
    - [Q] HOWTO show WebPage on a WinForm Hi, I'm looking for a way to display a HTML-page in a part of a WindowsForm. I was thinking of Embedding a IE on a WinForm. Can any-one give me some advise on how to deal with this problem ? greetings johnny Tag: Chart in Visual C++ .Net Standard Tag: 70553
  - 12
    - Progress bars and Track bars. Hay everyone I was wondering if its possible to get new and better looking progress and track bars (like the ones on realplayer and windows media player) since the ones on VB.NET look very old. Could I maybe download them but how would I get them into the program then Thanx Tag: Chart in Visual C++ .Net Standard Tag: 70552
  - 13
    - Adding controls to a panel in a UserControl? I'm developing a UserControl that has 2 panels - one docked top and the other fill. I want to be able (at design time) to drop controls on the panel docked to fill, but when I do so, the newly added control is added to the base UserControl's control collection and not the "fill" panel. Intercepting the OnControlAdded event and changing the parent of the new control just gives me an error message "'child' is not a child of this parent". Bringing the new control to the front doesn't work either as it's still parented by the base control and is "painted over" at runtime by the fill panel. I thought this was an easy one, but I've spent a couple of days (and nights) on it. Any help at all is really appreciated Thanks in advance. Tim Tag: Chart in Visual C++ .Net Standard Tag: 70551
  - 14
    - How can I see the name of my application when selecting "open with" in explorer Hi, when I select a file in explorer and rightclick->"open with" than I see only the Icon of my app without the name. How can I also see the name of the app? thx Bilo Tag: Chart in Visual C++ .Net Standard Tag: 70546
  - 15
    - disk management Hi I'd like to write a windowsform app that's similar to MS disk management console. Any idea where to start? What's the class/object I need to use? Does MS disk management have API I can use Please advice, thanks -LC Tag: Chart in Visual C++ .Net Standard Tag: 70545
  - 16
    - Strange ComboBox Behavior I have two ComboBoxes on a form both set to a different datasource. When retrieving the SelectedText from one the other's SelectedItem property goes to -1. If I remove one or the other they work fine independantly. If they were both set to the same datasource I might understand but they are connected to two seperate datasources. Any ideas? Tag: Chart in Visual C++ .Net Standard Tag: 70544
  - 17
    - No-Touch deployment - IEExec - Duplicate Entries in Assembly Cache - Strongly Typed Datasets - InvalidCastException I've been struggling with a problem using No-Touch Deployment for 10 days now. Searching the newsgroups, I can see that people have been experiencing parts of the problem, but I haven't seen any posts about my particular circumstances. I have a client/server database application. Both Client & Server are running .NET Framework 1.1.4322. The client is a VB.NET winform application. On the server, I run a VB.NET Web Service that accesses a MS ACCESS database and returns Strongly Typed Datasets (STD). The Web Service uses the SOAP serializer to convert the STDs into XML (Marshal By Object) and my VB client app converts the returned SOAP messages back from XML to STD objects. So far, so good. My client/server application works perfectly and is humming along until one day my boss suggests that wouldn't it be good if we distributed the client application using No-Touch Deployment. I place the client app on the server and run it from within Internet Explorer. I start getting Exceptions when I run the client app: "System.InvalidCastException: Specified cast is not valid". The exceptions happen only with Web Service methods that return Strongly Typed Datasets (Web Service methods that return untyped Datasets or other types of data work fine). Every now and again, I compile a version of my client app that works. If I recompile again with no changes, the new version doesn't work. A version of myClientApp.exe that works once, always works. A version that doesn't work, I can usually eventually get working eventually by emptying various caches, restarting the server, etc. Once I get the .exe working once, it continues to work. I conclude that it's not my code that is the problem, but something about the assembly & versioning. Following various suggestions on newsgroups: (1) I set the version number manually in AssemblyInfo.vb so it is not automatically incremented with each compile <Assembly: AssemblyVersion("0.0.1.2")> (2) I set the http channel in the Web Service to make sure the SOAP serialization is on: <channel ref="http"> <serverProviders> <provider ref="wsdl" /> <formatter ref="soap" typeFilterLevel="Full" /> <formatter ref="binary" typeFilterLevel="Full" /> </serverProviders> <clientProviders> <formatter ref="binary" /> </clientProviders> </channel> (3) Whenever I test the application, I clear out both the download assembly cache (with gacutil /cdl) and IE's browser cache. I also reset IIS from time to time. NOW HERE'S THE WEIRD PART. By studying IIS's log, I see that whenever I launch the app using No Touch Deployment, I see that IEExec is making over 20 GET requests of the server. Even though my http request is for myClientApp.exe, IEExec also tries to get myClientApp.exe.config, myClientApp.DLL, myClientApp.resources.DLL, etc. Most of these time out with 404 errors (no wonder it takes so long to launch), but TWO GET requests actually succeed: "myClientApp.exe" and "myClientApp.EXE" (spelled the same but with different case sensitivity). Checking the Global Assembly Cache with gacutil /ldl, I see that there are that two copies identical copies of the assembly (same name & version#). More useful is the IE InvalidExceptionError Window which also shows that there are two copies of myClientApp assembly except one has the lower case extension .exe and the other has the has the upper case .EXE extension. In this newsgroup, I found that it was documented that IEexec (used by No-Touch Deployment) has a side-effect of loading two copies of your assembly: Subject: Assemblies deployed with IE are downloaded multiple times ? http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=OQT8XxHdCHA.1864%40tkmsftngp11&rnum=4&prev=/groups%3Fq%3Dduplicate%2Bdownload%2Bassembly%2Bcache%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26selm%3DOQT8XxHdCHA.1864%2540tkmsftngp11%26rnum%3D4 RE: No Touch Deployment. http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=eNKAMy9lDHA.2416%40TK2MSFTNGP10.phx.gbl&rnum=2&prev=/groups%3Fq%3DMats-Erik%2BGrundh%2B(nospam%2540co.se)%2B%2BXin%2BHuang%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26selm%3DeNKAMy9lDHA.2416%2540TK2MSFTNGP10.phx.gbl%26rnum%3D2 For some reason, the fact that there are two versions of the assembly (even though they are identical except the case-sensitivity of the .EXE extension) seems to create a type-mismatch when client application tries to deserialize the Strongly Typed Dataset in the SOAP message. Does anyone have any suggestions or idea of what is going on? Thanks in advance, Paul Linhardt Paul_Linhardt@Lans mont.com <- remove space Tag: Chart in Visual C++ .Net Standard Tag: 70543
  - 18
    - Printing to a Form Template Hi I'd like to be able to print to the fields of a standardized form that I have in PDF format. The form is a HCFA 1500, but could be anything, like a Form 1040. Any suggestions on how to set this up with the least amount of pain? Third party software, like Form filler? (Would prefer to avoid third party for redistribution reasons down the line JT Tag: Chart in Visual C++ .Net Standard Tag: 70539
  - 19
    - Crystal Reports newbie question: binding single .NET WinForm to different reports files at runtime? I am newbie to Crystal Reports. Is it absolute required to create a .NET WinForm for each Crystal Reports file? We are developing hundreds of reports. Most of them are very generic. I wonder if there is way to have a single .NET Win Form which binds to different reports file at runtime. Is this feasible? If yes, can someone point me to the right resources or is there any how-to sample? thanks, Michael Tag: Chart in Visual C++ .Net Standard Tag: 70536
  - 20
    - Creating a start menu bar... Is there a way to create my own Start Menu bar, kind of like the ms office toolbar? Tag: Chart in Visual C++ .Net Standard Tag: 70532
  - 21
    - Updating Windows Form TextBox.Text w/ a Timer (c#) How might one do this Update windows form TextBox.Text w/ a timer(c#). There is a threading issue here I tried http://blogs.msdn.com/csharpfaq/archive/2004/03/17/91685.asp And got System.InvalidOperationException: Cannot call Invoke or InvokeAsync on a control until the window handle has been created Thanks! Tag: Chart in Visual C++ .Net Standard Tag: 70529
  - 22
    - Using icon file I've modified the icon file in my winforms project and am now using it so that when someone drags a shortcut for the app onto the desktop the icon shows up. This seems to be working fine except that if the user drags the shortcut onto the Quick Launch portion of the Task Bar then the default icon shows instead of the one I made. Does anyone know why this is happening? Regards, Aaron Prohaska -/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/- Wrench Science Inc. http://www.wrenchScience.com/ Phone: 510.841.4748 x206 Fax: 510.841.4708 -/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/- Tag: Chart in Visual C++ .Net Standard Tag: 70528
  - 23
    - Crystal Report Viewer - data adapter necessary? H I have 1 regular windows form with a datagrid which is populated from an SQL Server with data adapter etc The 2nd form has a Crystal Report Viewer on it. I've created the report.rpt, set the datasource to the DataSet.xsd in the report with the fields where I want them. However, when I run the app and click the button to open the 2nd form with the report on it, only the labels appear on the report; no data fields Q. I've already got the data on the first form. Do I need to code another data adapter in the form with the Crystal Report Viewer to get the data? It seems that I should be able to just use the existing Dataset Thank Tag: Chart in Visual C++ .Net Standard Tag: 70527
  - 24
    - Creating an editable grid in VB .NET using Codebase and VFP databases I am converting an application that is in Visual Foxpro and am= using Codebase for VB =2ENET to do database manipulations in VB= =2ENET 2003=2E I have created a grid using the MS Hierarchical Flex= Grid Control, have been able to assign each of the codebase= fields to the gird, but don't seem to be able to get the grid to= successfully be edited=2E I found one example that said I= basically have to position a textbox over the cell I want to= edit, sizing it the same as the cell to make it appear that they= are typing into the flex grid itself, validate the data, and= then replace it in the cell=2E What appears to be happening is= that I edit one cell, and some other cell gets changed=2E Is there= not an easier way to do what I am trying to do? I have called= Sequiter Software - the creators of Codebase - and I have been= told that there is no built in option for viewing a database,= and that I have to just attach field by field to a grid=2E Any= help someone could supply would be appreciated=2E I also tried to= somehow attach a VFP database to a datagrid as a bound source to= have it use more of the =2ENET capabilites to no avail=2E Thanks -------------------------------- From: Kathy Gauvin ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>basG3Px1KU+AbQVPAWPppw=3D=3D</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70526
  - 25
    - Highlight Textbox Text I am trying to "highlight" text in a TextBox control during the "Enter" event as follows private void txtPriorPlantTotal_Enter(object sender, System.EventArgs e this.txtPriorPlantTotal.SelectionStart = 0 this.txtPriorPlantTotal.SelectionLength = this.txtPriorPlantTotal.Text.Length However, when I run the program and click on the textbox none of the text is physicaly highlighted. SelectedText shows I have selected all the text in the textbox but nothing is highlighted. I tried a few other textboxes just to make sure it wasn't the control What gives C# with framework 1.1 Tag: Chart in Visual C++ .Net Standard Tag: 70516
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  - 1
    - Link to refer a portion of text I have to create a RichTextBox with many references Reference Reference ................ I would that the number following the word Reference is clickable Once that I click on the number I want select a portion of text in my word document. (as a bookmark? Currently I don't able neither to realize a portion of text clickable in a RichTextBo I hope in your suggestio Thank yo cos75 Tag: Chart in Visual C++ .Net Standard Tag: 70515
  - 2
    - Write XML data to SQL Hi all, I am not sure if this is the right forum for this message but here goes, I have some XML date(at present I have it held within a string and saved to a file on my local file system using the streamwriter object) I have an XSD that defines the relationship between the data in the xml file and tables in my SQL server (i know this works becuase I have used this using SQLXMLBULKLOADLib3.0) I need a .NET way (NOT USING ANY 3rd PARTY COMPONENTS) to get the XML data into SQL Server? Can anyone help? I don't really care about the type of solution so longs as it is pure .NET and no external references. Cheers in advance *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Tag: Chart in Visual C++ .Net Standard Tag: 70514
  - 3
    - Losing icons from .resx file I'm losing icons from a .resx file, and I'm not sure why. I'm adding the icons using ResEditor (the resource editor that ships unbuilt with VS.Net). I add the icons, save the .resx file, and all seems well. If I reopen the .resx file, the icons are there, just as expected. But after a couple of compiles, the icons are gone. It I reopen the .resx file, they are no longer there. My code doesn't do anything with the .resx files-- it just reads the resources: System.Resources.ResourceManager resources = new System.Resources.ResourceManager(this.GetType()); this.Icon = (System.Drawing.Icon)resources.GetObject("Folder.Icon"); I'm using EnableVisualStyles() in the Main() method, like this: // Enable XP visual style Application.EnableVisualStyles(); Application.DoEvents(); // Start the application Application.Run(new FormMain()); Can anyone shed any light as to what's going on? Thanks -- Dave Veeneman Foresight Systems Tag: Chart in Visual C++ .Net Standard Tag: 70513
  - 4
    - .NET Framework form creation/swap-space problem? Hi all, I have a really odd problem with some Visual Basic .NET 2003 code; I have a program that creates a number of windows which contain RichTextBox, Timers (disabled) and menus. The code runs fine and creates the windows as required, BUT if the program is left to do nothing for several hours, when it is brought back into focus it generates an exception error (Object reference not set to instance of an object - this always coincides with a LOT of disk activity) when it tries to access a window handle. The really odd thing is, if the excepton is trapped with a breakpoint, examining the values it's trying to manipulate (and which presumably causes the exception) reveals nothing wrong. The code is: Dim NewForm As New Form2 Dim MyWindowHandle as System.IntPtr NewForm.Show() Try MyWindowHandle = NewForm.Handle ' this occassionally goes "bang" Catch ex As Exception MsgBox("Exception") ' by this point, NewForm.Handle has a valid handle in it. End Try If I put a breakpoint on the MsgBox line, when the code generates an exception, NewForm.Handle has a valid value; I can see absolutely no reason why this code causes an exception. The NewForm.Show() works without a problem. I wondered if my code was hitting some resource-limit in XP (like the limit on the number of window handles that existed in Windows 3.1) so I tried running my "create window" code 1,000 times via a loop, and it worked fine. In general ("real") use, the code doesn't get called more than about 30 times. The code is far more likely to crash if it's run in Debug mode via VS itself; if it's compiled in Release mode and run outside of VS, the crashes are less frequent. My theory is that if the program is left doing nothing for several hours, XP or .NET swaps the code to disk and when the program's brought back into focus, it's retrieved from disk but (I'm guessing here) the code starts executing _before_ all the bits and pieces are restored to RAM, hence the exception. By the time the breakpoint is activated, everything's in place and that's why my VS 'watches' on the variables show nothing amiss. If my theory is correct, is there some way a program can test whether it (and its objects) are all present and correct before accessing things like window handles? A couple of other programs I've written also exhibit this problem. Since things like MS Word and Excel don't go horribly wrong when brought into focus, surely there's something Microsoft & others are doing that I'm not (like not writing programs that use the .NET Framework, I suppose ;-) ). Changing the code to look like the following seemed to confirm my theory: Dim NewForm As New Form2 Dim MyWindowHandle as System.IntPtr NewForm.Show() Try MyWindowHandle = NewForm.Handle ' this occassionally goes "bang" Catch ex As Exception MsgBox("Exception") ' This gets called fairly often Thread.Sleep(10000) ' sleep 10 seconds Try MyWindowHandle = NewForm.Handle Catch ex As Exception MsgBox("Exception #2") 'This rarely gets called End Try End Try The first "MyWindowHandle = NewForm.Handle" crashes more than the 2nd one, yet they are both the same thing. My PC is running Windows XP Home Edition SP1 with all the latest fixes, I'm using Visual Studio 2003 Standard Edition, with the latest patch (the 75MB one released last year to apply "documentation updates" (75 megabytes of them??)). I'm running Microsoft .NET Framework 1.1. My PC has 512MB RAM and an Intel P4 (non-HT) 3.06Ghz CPU. Thanks in advance for any help or suggestions, Fiona. Tag: Chart in Visual C++ .Net Standard Tag: 70511
  - 5
    - hlp ContextMenuItem text not being updated I'm updating the text of certain context menu items on right clicking over a DataGrid, like: 'On right click with me.bindings(table).current miMenuItem.Text = .Item("MyName") end with cmContextMenu.Show(Ctrl, pnt) All should be fine you might think, it updates the text on the first display but following that the text remains the same. I can do console.writes of the new MenuItem.Text to verify they have been changed but its display isnt getting refreshed, any ideas? thanks Tag: Chart in Visual C++ .Net Standard Tag: 70510
  - 6
    - Auto Scrolling a ListBox Hi, I am using a ListBox (System=2EWindows=2EForms=2EListBox) on my= application's data import form to show the progress of the= transaction as it is happening=2E I want it to scroll down= automatically as I add items to it=2E The items will not be= sorted, and the list box must always show the most recent item= added (the one on the bottom=2E) I am adding items like "Successfully connected to=2E=2E=2E" and= "Imported =2E=2E=2E number 1234 =2E=2E=2E" to the list=2E I add items in many= different places, so it would be best if I could cause the= automatic scrolling to run on an event that is fired whenever an= item is added to the list, instead of having to update the code= wherever I add items to the list box=2E I have found many examples on this site and others of how to= automatically scroll a RTF and text box, but nothing for list= boxes=2E Please Help Stephen -------------------------------- From: Stephen Martindale ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>g04WoX2+jEaQAcLody+IWA=3D=3D</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70509
  - 7
    - Form Loading very slow Hi All I have a Winforms App writing in vb.net IT has a Main MDI Form called frmMain. When ever I create a new object of an existing form and then show it , it takes a long time to render when a child form creates another form object. All I?m doing is calling the form object's show or showDialog methods. This looks very ugly and unprofessional. As a result I?ve had to develop a 'pre' buffer for the forms on startup with a loading sequence as the next time they are called they show instantly. eg. Public Sub PreLoadForms() Dim objFrmClient As New FrmClient Dim objFrmCompany As New FrmCompany ... ... objFrmClient = Nothing objFrmCompany = Nothing End Sub Does any one know why it takes so long to render a form if it?s called from a child form? And is this the most efficient work around? -------------------------------- From: craig rose ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>VQf3jwChN0uCXDzryzEdkw==</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70508
  - 8
    - Setup project questions Hi everyone!! i have some questions about .net and its setup project: 1-i want to create an uninstall option once my application has been installed. What i need for do this? 2-Can i remove the banner text that there is in a dialog box inside the option of User interface?? 3-Once i have installed my application with my setup i want that several files (with its format) are to be open by default with my application. How i can to do this in my setup project?(associate files with an .exe) 4-i want to reinstall my application over the older of this. When i'm doing this, a dialog tells me that i have to remove the older with control panel. i don't want this.i want that the newer overwrites the older. Thanks ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>HhpScZRa00+LmzgZ3ndqPA==</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70507
  - 9
    - Need help with a Virtual ListView I have a need for a virtual ListView control in C# -- one that allows very large numbers of entries in it, without a linearly increasing penalty for adding more items. I found a suitable example at http://www.windowsforms.com/ControlGallery/ControlDetail.aspx?Control=214&tabindex=9 It has come in extremely handy for one of my C# projects. One of the problems I am facing is that I am unable to draw an image in the first (or any other) column. I can set the text (in any column) just fine. But I have been unable to set an image, despite implementing the QueryItemImage callback, in which I set the image index to 0. A blank image is displayed. Image lists (small, large, and state) are all set. Any ideas on how one might get around this, or if there are any workarounds/hints for this? All feedback is most appreciated. - SK Tag: Chart in Visual C++ .Net Standard Tag: 70502
  - 10
    - Show checkboxes conditionally May be someone can help me with the folllowing problem=2E I'm using= the treelistview, and I want to show checkboxes to the user, so= I set the property Checkboxes on 'true'=2E How can I show the= checkboxes conditionally, so for example, only show the checkbox= at the beginning of the treelistviewrow if some of the subitems= has a specific value? For me it would also be great if I could= only disable the checkbox so it cannot be clicked=2E Please help! Many thanx in advance=2E -------------------------------- From: sevy82 ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>JYrAarI+g06Yv4JdqEfsIg=3D=3D</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70498
  - 11
    - Is there any way to create a transparent menu ? Is there any way to create a transparent menu ? -------------------------------- From: ibnou toure ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>Lq3QN7Q7NU+lzacS/yX0lw==</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70493
  - 12
    - AutoScroll & Programmatic Size Change Just in case someone else winds up with this problem: AutoScroll automatically manages scroll bars in case the user changes the window or control size. If the size of the contained controls changes programatically, the scroll bars may not automatically update.* Re-setting AutoScroll to true appears to work around this problem, but ONLY if the layout has not been suspended using SuspendLayout(). * -- In my case, AutoScroll was on a form, with Panels of various size which are loaded by menu or button navigation. . . . . . . . -- Eric -------------------------------- From: Eric H Posted b/c web searches didn't find the problem, so I was forced to experiment. ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>XHMm1kIwRE68lon/ygORQA==</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70492
  - 13
    - Keypreview does not work with ComboBox With keypreview = true the key events in a combobox are not intercepted by the form. It does work in text boxes but it makes a beep too...anyone knows how to do it?? ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>u3jc4ZrRGkmgJNVfwjmtyg==</Id> Tag: Chart in Visual C++ .Net Standard Tag: 70491
  - 14
    - ANN: Beta test help... Hello all our company finished working on a windows forms control library and we are looking for fellow developers who are willing to give us a hand in doing some beta testing... So if someone can spare a few, please get it and send me some feedback at andrew@olvio.NOSPAM.co The library can be found at: http://www.olvio.com thank you, I appreciate it andrew Tag: Chart in Visual C++ .Net Standard Tag: 70488
  - 15
    - using values from a parent form? I have parent form(A) which calls another form(B). I would like to use a value from a row in a data grid on the parent form(A), in the code of my called form(B). What is the best way to handle this. Thanks, Will Tag: Chart in Visual C++ .Net Standard Tag: 70487
  - 16
    - Problem in Zero Deployement Hello Folks, I am trying to develop a Proof Of Concept for a Zero Deployment Created a simple winform. Created a simple WebService. Call a method from WebService on a button click and display results in the TextBoxx So far so good, Everything works as expected but when I try to deploy it over the web I am gettingh the following error. An Exception 'System.IO.FileLoadException' has occured in IEExec.exe This error happens first time when I click on the Exe(http://servername/appdir/appname.exe) It asks me if I would like to debug I decline and next time I try to load the application works fine. This happens also when I try the same on my local machine(I got everything on the same box). And goes away when I try for the second time. It happens after everytimg I compile the application. I have a work around as I explained but I would like find out from the Great Minds what is causing this error. I see Michael Moor from MS answered to similar question but a differnet context so not very relevant. Any answer will be appreciated. Thx Sridhar Tag: Chart in Visual C++ .Net Standard Tag: 70485
  - 17
    - Listview Item.Selected not populating Listview.SelectedItems collection Hi, I'm having some trouble getting the Listview.Items[0].Selected = true to populate the SelectedItems collection. The code that I'm using is: CtrlTransferSettings tester = CtrlTransferSettings() if (pos < tester.lstStrings.Items.Count) { tester.lstStrings.Focus(); tester.lstStrings.Items[0].Selected = true; tester.lstStrings.Select(); } What's happening is that the SelectedItems.Count is staying at 0, even after setting Items[0].Selected to true. While in debug mode, if I go look at the "Autos" listing and drill-down to the lstStrings.SelectedItems.Count property it updates itself and then lists the count as 1 and everything works correctly. But, it will only update if I drill down the 'autos list' in debug-mode. If I just run the code, the count always stays at 0. Is this a bug in the ListView control? Or am I missing a step? Any help would be greatly appreciated. Sincerely, Chris AdamsReply: Remove the online. from the email address before replying Tag: Chart in Visual C++ .Net Standard Tag: 70483
  - 18
    - listBox.Items.Remove help I dont know what i am doing false. the code : private void button2_Click(object sender, System.EventArgs e) { foreach (string filename in listBox1.SelectedItems) listBox1.Items.Remove(filename); } gives me the error : System.InvalidOperationException: The list that this enumerator is bound to has been modified. An enumerator can only be used if the list doesn't change. at System.Windows.Forms.EntryEnumerator.System.Collections.IEnumerator.MoveNext () Anyone can help? Tag: Chart in Visual C++ .Net Standard Tag: 70482
  - 19
    - transparencykey + png's I'm writing a little calendar/to-do/etc application like rainlendar ( http://www.ipi.fi/~rainy/index.php?pn=projects&project=rainlendar ). I'd like to have transparent gif/png images show up for the dates i can set the transparencykey of the form to the background color and get the form to disappear fine. the problem is once i add pictureboxes with transparent images, the parts of the image that are supposed to be transparent show up as the form background color :/ shouldn't transparencykey not draw this color? is there any way to have just a set of png's show up (no form, no background, etc) Tag: Chart in Visual C++ .Net Standard Tag: 70481
  - 20
    - WaitCursor not showing, again It seems everyone could show a WaitCursor successfully, except for me. Here is exactly what I did. Please let me know if anything is wrong 1. launch VS.Net, select C# windows app 2. drop a button on the form 3. d-click on the button to its onclick handler, pu Cursor.Current = Cursors.WaitCurso Now, F-5 and click on button - nothing happens. Now if I call into a method on the form, and d this.Cursor = Cursors.WaitCursor // inside the for It does turn the cursor to hourglass. However it does not disable user inputs as they claim. So how can I set hourglass at application level, and disable user inputs at hourglass, without using unmanaged API as the good old days? Thanks Tag: Chart in Visual C++ .Net Standard Tag: 70480
  - 21
    - Unable to start debugging with a user domain I was debugging on a local machine without problems. Now I put my machine in a domain and I can't debug anymore. If I try to debug a simple windows form application, I receive the following message Error while trying to run project: Unable to start debugging Access is denied. Verify that you are an administrator or member of 'Debugger Users' group on the machine you ar trying to debug. After being added to 'Debugger Users' group, you must log off .. If I'm using a domain user, I can't added this user in 'Debbuger Users' group on the local machine What do I need to do to debug using a domain user? Tag: Chart in Visual C++ .Net Standard Tag: 70475
  - 22
    - How do I remove a control from a form? I dynamically add a few user controls to a form, but later, I want to selectively remove some of those user controls from the form. I am trying to do this from the user control with this.ParentForm.Controls.Remove(this), but the control does not disappear. What am I missing? Thanks. Tag: Chart in Visual C++ .Net Standard Tag: 70470
  - 23
    - 2 comboboxes with the same datasource act as 1. Help I have 2 instances of a user control on a windows form. Each user control has a combobox. I have set the datasource for each combobox to the same collection of objects. I would expect these two comboboxes to act completely independently, but with the same selections available. What I am seeing, however, is that if I change the selected value of one combobox, that the selected value of the other combo box changes as well. Does anybody out there know what is going on? Is this just a bug in the framework, or is it designed to do this intentionally when using the same datasource? Thanks. Tag: Chart in Visual C++ .Net Standard Tag: 70467
  - 24
    - Winform app not opening from browser Hello, we are having a strange problem and thought I would see if anyone could provide some insight. We have a winform app deployed via the "No-Touch Deployment" model. The problem is that we have 1 user (so far) who is navigating to it from a web page (we actually do a window.open from the web page), and they just get a blank Internet Explorer page. Now, if you refresh the page, it actually seems to display the binary characters of the exe. It appears that IE is not handing off to IEExec.exe, because if the user actually runs IEExec.exe <URL to the exe>, the application starts up. I have no idea what to do in this situation except re-install either the Framework or Internet Explorer. Any ideas? I couldn't find anything on google. Details: Framework Version: 1.1 Operating System: Windows 2000 (latest service packs, etc.) IE Version: 5.5 (I know it has a service pack) Thanks for any help or ideas. -Mike Tag: Chart in Visual C++ .Net Standard Tag: 70466
  - 25
    - how to pass DataSet to modal form? Hi, My main form shows a datagrid with data and I want to open a modal dialog with bound controls on it when the user double-clicks a row. Both forms have an instance of my typed dataset and the controls on the dialog are bound to its dataset. I pass the row I want to the dialog and use DataSet.Merge to add the row to the dialog's DataSet. At this point the row is Unchanged, which is OK. As an example, let's assume a column holds the value "11". After typing "22" in the bound textbox, the value is "22", but the RowState is still Unchanged. Moreover, the DataRowVersion.Original version of that column is "11" as expected ! So it's changed but unchanged !? Any ideas? Tag: Chart in Visual C++ .Net Standard Tag: 70464

Hello

I use Visual C++ .NET Standard development package. I would like to use Excel Charts on my Windows forms. I could not find any document about charts in VC++ .NET.

I look forward your kind responses

Thank you very much from now

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