I have just suffered a crash after trying to assign an image file to a button on a toolstrip on my applications main form. The ToolStrip was in a ToolStripContainer and already had some images assigned. Initially I was trying to insert a bitmap image which proved to be unsuitable (cosmetically) so I assigned a .Png file instead (using Project Resources file import) which caused the problem.The crash wiped out the toolstrip and also blanked out the MenuStrip on the form whilst still leaving references to them in the "Form".designer.vb file. Any attempt to resurrect either just led to more errors. I'm not attempting to detail all the error messages here (too many) and I have worked round the problem by resorting to an earlier backup.I'm really wondering if anybody had experienced similar problems and/or had any advice on the best way to add images (and what type of image files are OK and which might cause problems).
I've been looking for a website that has images for menu/toolstrip objects like a folder image for Open, a clipboard for Paste, etc.Since I've had no luck at all, I've been assembling one myself.I've been using 16 x 16 images with cyan(R:0 G:255 B:255) as my transparent color.url...
i am using (i am obligated to use) npgsql driver to insert images on bytea column in postgresql db using vb.net code.after inserting the first one successfully, i try to insert the second one it finished that i have inserted the first one again, it continues until i have reset the iis.
Dim cnnstr As String cnnstr = System.Configuration.ConfigurationManager.ConnectionStrings.Item("DMS_ConnectionString").ConnectionString Dim conn As NpgsqlConnection = New NpgsqlConnection(cnnstr) conn.Open()
I really want to make use of the toolstrip and databinding but these two technologies keep conflicting with each other. I think the root cause is something to with the fact that the toolstrip buttons don't recieve focus in the normal way.
I invite you to try the following:-
1. Create a form and put some text boxes a tool strip with a save button on it.
2. Write a query or sproc to get a datatable back and bind your text boxes to the field in the datatable.
3. In the code behind your Save ToolStripButton put some code that makes an arbitrary change to a field on the dataset (it doesn't matter whther this field is bound to a text box or not). eg:- m_DataTable.Rows(0).Item("CommissionRatePerc") = "0.0000"
4. Put a breakpoint in the save and run the form.
5. Make some changes in the text boxes. Do not leave the last text box but rather click save while a text box whose contents you have edited still has focus.
6. When your code hits the breakpoint, query the value of the data table field that is bound to the text box you were editing when you clicked save - it will still contain the unedited value. Unless you do something about it that unedited value is going to get saved back to your DB.
We did get around this problem by explicetely setting the focus to another control on the form before saving. That worked most of the time because it prompts the text box to flush it's value back to the datatable (nb EndEdit does not work, although you'd have expected it to). However, and this is the reason I suggested you add a line of code that changed a value in the underlying datatable in step 3, if you change a value in code in this way before the value from the text box get's flushed back then it doesn't seem to matter what you do, the user's current edit is simply lost. They will still show in the text box, though, leading your user to believe that the change has been committed when it hasn't. Our final solution is that we never ever change a value in the adtaset in the code behind our toolstrip buttons. That's working but it's a pretty big restriction.
The idea is to scan a folder of images and then let the user navigate back and forth through the images using a couple of buttons.The problem is, I can only get it to return a single image, and not the whole lot. It's looks to me as though the images are getting assigned to the same index in the array. [code]
What type of connector do i need to actually save the Map data like point of the images (x,y coordinate) into the database . and then retrieve it to show on the page in asp.net and how do i go about doing it.
The app i am working on is for creating theme for the iPod touch... It has to deal with LOTS of images (100's potentially) There will be the set of default images, and then the user created replacement images. I started loading all the defaults into a resx file... thinking then I could just pull them out. now that I started setting the default, this sucks! lol the app will do this, on load it will set all the images (variables) to the resx images then when a theme is loaded, it will replace the default with the user image (if the user img exists) otherwise, the default stays. Then the "screen" is drawn to show the user. so, here is just the images to build the wallpaper, dock, and status bar...
I was thinking to make an app to save images [or download images] to local hard disk. But to keep it easy, I want this app to create a small picturebox on form to show the thumbnail of downloaded image. Lets say a 5 pictureboxes has to be added with the thumbnails to show the recent downloads. A user can save the location where he wants to save the files on hard disk. A listbox or a dropdown menu will help in categorizing the images, like image1 in friends section, image2 in family section, image3 in others, etc... When the program restarts all the latest 5 thumbnails has to be loaded in pictureboxes and the directory that was chosen. Finally, a button that shows the downloaded images into original image file size one by one or a slide show. Is it possible to make such program?
I am developing a visual basic 2008 express edtion program of an organisation that should get images from the system and display on image/picture box. further the program should save the displayed image in access database so that it can be retrieved together when you want to search the information about that particular employee.
I need this for my program. There is "add images" button where you can load multiple images and those images should be show on listview after loading.I have been trying to make this but could not get it work.
Still trying to become familiar with SQL, and very comfortable with VB.NET. Trying to develop an application for a user to pass a value into a stored procedure.
I have written a very small windows console application that got uploaded to an internal company portal. Basically this thing only looks for a registry key and if it doesn't find it, then it creates it. After that it populates a String value and exits. My issue is that when I provide this tool to our L2 support group they put it on an intranet portal.
I have a program that will get a hash of the image but the problem is that I have to do to manually.I have a set of images of a folder names images(C:/images/) and ill be choosing which of those images i want to upload to my database.So far I got my program to work with database and such, wat I need is, if its possible I but the folder path on OpenFileDialog and I was a image to show in Picturebox1, then if I press button1 it will go to next picture.
I have recently implemented to following code on a good deal of my forms.
Public Overrides Function InitializeLifetimeService() As Object Return Nothing End Function
It has worked great to solve some of my odd application hangs when the application has been running > 1 week.However, when the user closes the program I now get an Application Crash screen.how to stop this? how to put it back to "normal" with a global variable?
Public Overrides Function InitializeLifetimeService() As Object if readytoExit then ' Return... not nothing?[code]......
Maybe a strange question, but I need to test the stability and error procedures of the host process (caller) that accesses COM objects. Therefore I need some easy/short methods to let the COM object(s) crash itself.
Addition 1: With crash I mean the type of crash that can take the caller down also.
Addition 2: I own both the code of the caller as the COM server.
I'm currently trying to send the SB_GETTEXT message to a status bar, but it always crash and I don't why (the SB_GETTEXTLENGTH works fine, but not the SB_GETTEXT). Below is a VBA code I tried to use in Excel to read the status bar text of Worpad. The first code using WM_GETTEXT works well, but the second code that uses SB_GETTEXT always crashes.
I've made a client beta software in VB and use ClickOnce to install/upgrade clients. Everything works OK until I upgraded to .NET 3.5 SP1 and implemented SQL Server Compact 3.5.All clients got an upgrading error. The solution was a reinstall from the download page. All clients works OK exept one; The client crash on startup on a Vista 64-bit PC. I cant' find the error?Tool/platform:VB / Visual Studio 2008 SP1.NET Framework 3.5 SP1The following prerequisites are required: * Windows Installer 3.1 * .NET Framework 3.5 SP1 * Microsoft Visual Studio 2008 Report Viewer * SQL Server Compact 3.5 Morten Dahl
Basically, I have a Web Browser object on a Visual Basic form. However, about 5 seconds after it finishes loading ANY webpage, the entire program stops responding. I figured the issue was related to internet explorer, so I updated to Internet Explorer 9 Beta and the issue is fixed (this is a very strange fix)!!! However, Internet Explorer 9 is not available for Windows XP. what might be causing this and a possible solution for computers that are running XP?
The scenario is this: VB.net 2003 connecting to access 2003 using Jet 4.0 SP8 and MDAC 2.7 SP1.On a particular client machine with XP SP2, while trying to fill a dataset it crashes fantastically without ANY error message. the exe just disappears from the task manager.I use a Module to launch the MainApp form, if I try to connect within the Module BEFORE calling the:
Code: dim MainApp as new MainApp application.run(MainApp)
...the datasets work normally, but if I do it inside the Form_Load (or anywhere inside the form) it presents the previously mentioned fatal crash.I have updated the clients machine with the SP1 for .NET 1.1 with no luck.Now, in a desperate attempt, I have installed VB.NET 03 in the client machine and with the dev env it works fine, but if I try to run the executable from outside, it crashes again. No error message from the exception handling inside the app, no unhandled errors from the framework or the OS, it just vanishes from the task manager.I tried to reinstall MDAC and Jet but the installers find the previous files and won't update with the new ones. Tried also reinstalling .NET framework and the error persists.
I have an Access 2007 database that runs constantly, the form on the database basically runs a timer every 10 seconds and runs a Macro. The problem I have is that when the backups run at night the network connection the database is on disconnects for the backup, so the database crashes with the error.
"Your Network Access was interrupted. To continue, close this database, and then open it again."
What I would like to do is create a small VB Application that runs on the machine that the database runs on, detects when the database has a problem, closes down the database process then restarts the database.
We have one user who has run into problem on this CilickOnce win app today.When she clicked the Install button on the publish.htm hosted on the network, a message said:dfsvc.exe has encountered a problem and needs to close. However the app still launched when she clicks any button on the pop up message box, then later crashes in a crystal report viewer with system.reflection.target invocation exception if she enter that particular area.I googled dfsvc.exe. Some posts said it is a virus while others said it is ClickOnce engine. I have many other users who are on the same version and are running the same OS settings without any of the above mentioned trouble.I am not sure if the dfsvc.exe error is related to the reflection eception or not.
There is a bug report [URL] on serious problems that can occur if you are using a USB to serial port converter and the user pulls the USB while the serial port is in use. Apparently the bug is still present in VB2010, and Microsoft still has the bug closed.
Recently one of my clients started experiencing a very unusual problem. When they try to print from the program I developed their whole system crashes without any error messages or warnings. This problem started recently (they have been using this software for over 2 years).
I used VB.NET 2003 (.NET Framework 1.1) to develop the software, my clients have Windows XP Pro. At first I thought that the problem was in their printer driver. I contacted their IT department and after several weeks of testing they conlcluded that the problem is somehow related to my software (this issue never happened when the client is printing from any other program). To print, I have created a group of classes that create and print reports. The main class subclasses PrintDocument then I use PrintPreviewDialog to display the preview and give the client the option to setup page settings, etc. The code runs without problem on my development machines and up until recently without problem on the client system as well. I did intall an upgrade recently that was related to printing, but all I did was to modify the print output, the upgrade did not modified any of the printing functions.
I tried to find information on the Internet, but coudln't find anything. I wonder if migrating the solution to .NET Framework 2.0 will solve this problem?
whenever I save anything in it, VS crashes it doesn't seem to matter what file I save in any of the projects within.It also seems to actually save all the files; just crashes when it's done is my guess...
I have a backup program that is currently running in our Corporate Environment on about 70 machines. A mixture of Laptops, Desktops and Windows (xp-32, vista-32, vista-64, 7-32-7-64) with no problems.
There is one exception, and it's the reason I'm posting here for assistance.On one machine that is a Dell Latitude running Windows 7 64 bit with .Net 4 Framework installed the console application will crash immediately before it starts Sub Main. It simply give the generic windows error "A problem caused the program to stop working correctly." with no option to see debug info.
