VS 2010 Missing Field Exception
Sep 14, 2010
I have a class library that is referenced by several other class libraries along with the main program. About two weeks back, I made a change to one of the classes in that base library, which is used as an argument for some events. Since that time, I have been testing code. Today, after a couple more tests, I started getting this exception. It is indicating a field is missing, which was renamed in that change about two weeks ago. The exact code that is raising the exception is code that I have run a couple dozen times in the intervening time, and it has always worked.I have tried everything I can think of, including deleting the bin and obj folders of every module that could be in any way related to this issue, such that the whole thing was rebuilt. I have removed the references and re-added them. Nothing worked. Code that has run fine for weeks has decided that it wants a version of an object that has not existed for weeks.
This problem arose immediately after a different problem, so the two might well be related. The other problem was that, while stepping through code, the IDE decided that one of the code pages was different from when it was last loaded. I get that a fair amount, and solving it is fairly routine. It generally means that I am stepping through code in a dll, and inadvertently tried to fix a bug in that code, rather than in the dll itself. Now it no longer matters. I can't get to that code page, nor can I get to anything else in that dll. It is acting like it has sponaneously decided to revert two weeks back in time, and use that source code for debugging, despite any attempt I make to bring it up to modern times.
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Aug 21, 2011
This is the XML output of my command in a web browser.I need to get the MachineID value.
<?xml version="1.0" encoding="UTF-8" ?>
- <Response>
<Code>0</Code>
<Message>OK</Message>
[code]....
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Oct 4, 2010
I'm deserializing a custom object from a file to an object in my app using the XmlSerializer. My issue is that I want a field in the object to default to "True" rather than "False" for a new property that doesn't exist in the file that I am deserializing from.
By default, .Net is assigning this value to be false because it doesn't exist in the file and I want it to default to True if it doesn't exist. I used the System.ComponentModel.DefaultValue(True) attribute on the field in the definition of the object, but that didn't work. Does anyone know how to do this?
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Oct 12, 2005
I'm writing a program in VB 2005 Express Beta 2. In one section I allow the user to repeatedly access a resource file that was created using a ResourceManager object. Each time the user is done with the section I use a ReleaseAllResources statement to close the connection to the resource file.Repeatedly calling this subroutine does not appear to cause a problem. However, I just wrote another subroutine which allows the user to write certain choices and results from the application to a file on disk. I create both a filestream object and a streamwriter object to write to the file. Each time the routine finishes, I invoke the close method for the streamwriter object followed by the close method for the filestream object to make sure that I have written everything in the buffer and closed the connection to the disk file.In some way that I do not understand these two routines (the ResourceManager routine and the file writing routine)conflict with each other, generating the exception described in the subject line of this message.
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Nov 9, 2009
What is going on with my code. To .NET and handling SQL connections. I am trying to catch an error where lets say someone puts in something that violates the rules of the field (i.e. they put data in a field that doesn't matched what is on the other table.) Please find teh code I ahve put on the save button to try to catch the error. Instead of popping a message box up the program just closes itself.
Private Sub Job_tableBindingNavigatorSaveItem_Click_2(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Job_tableBindingNavigatorSaveItem.Click
Try
[CODE]...
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Jun 21, 2012
I have installed VB.NET express 2010 version and I am trying to create a new dll file for use in my SSIS packages. When I try to write the code, the VS environment tells me that I dont have the Microsoft.SqlServer.Dts.Runtime Namespace. What can I do to make this possible?
I looked around on internet but couldn't find anything substantial. I also have BIDS 2008 which I use to create packages. I cannot uninstall that because I have some work to do on a daily basis.
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May 6, 2010
I am working with a .csv file that is generated from a Java-based application. It mainly contains contact information. I can see the data when I open it in Notepad, Excel, and Access. However, when I attempt to read the data file in using the following code, I get blank data. I accidentally discovered that if I open the .csv in Excel and then save the file, my program will read it in perfectly.
MrWrightAZ
Using MyReader As New Microsoft.VisualBasic.FileIO.TextFieldParser("C:GAS_ReportMembership.csv")
MyReader.TextFieldType = FileIO.FieldType.Delimited
MyReader.SetDelimiters(",")
[code]....
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Feb 3, 2011
When I build my project I get a compile error stating "Could not locate the manifest signing certificate in the certificate store". This is a new one to me and I have no idea how to solve it.
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Feb 6, 2011
I want a button that when you click at it, It searchs for a line that has brackets that are'nt closed, and then ighlights the error.Like, I have; So the (Dog Which should be for example (Dog). Then, I want it to highlight it so the user can see his error, and show a notifyicon on it.
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Jun 5, 2011
I'm working on a grid of cells that is something like a DataGridView, but not really. The two are close enough that you can picture a DGV for the purpose of this question. What is actually there (and this is true for actual DGVs) is a set of cells drawn on the screen with a couple scrollbars for vertical and horizontal scrolling which are only drawn if there is too much data to show in the visible cells. There aren't more cells than the ones that are visible, so when you scroll the scroll bar, it looks like new cells are being displayed, but what is actually happening is that the existing cells are just being filled with different data depending on the position of the scrollbar. The key observation is that the set of controls displayed in the grid is always the same (unless the grid is re-sized, but that's not relevant to this issue). The appearance of those controls can change, but the controls themselves do not.
One of the features I am adding is the ability to drag-copy data similar to how Excel works. In my case, if you click on a cell, then drag outward (move the mouse while holding the button down), all the cells in the selection rectangle are tinted green. This works nicely. Some of the cells are enabled, while others are disabled. If the drag selection includes disabled cells, those are not tinted. Only enabled cells can be selected, though a drag can cover disabled cells. The relevant point here is that some cells are enabled and some are disabled.
The feature that I am adding is the ability to do drag selection beyond the visible edge of the grid. The grid is a monthly calendar, and I simply can't get 31 cells onto even a wide-format screen. What I am trying to do is allow the user to do drag-copy onto days that are not currently visible. The way I do this, the user clicks in a cell, then drags out to the border, at which point the grid scrolls (the scrollbars move, and the contents of the cells is updated as a result of the changes to the scrollbar value). This is largely working.
The way I handle the selection is that when the user presses the mouse button while over a cell, a flag is set to indicate that the button was pressed, and the current cell is recorded (so that I know where I started from). MouseMove events are used to figure out what new cells the user has visited, and set the selection area based on whatever is under the rectangle described by the initial click point and the current point. Lastly, when the user releases the mouse button, the MouseUp event initiates the actual copy. At that event, I know that the user is done with that copy action. Therefore, the MouseUp event is kind of critical, and therein lies the problem.
As I mentioned, some of the cells are disabled and some are enabled. Disabled controls don't raise events. If I click on a cell, it HAS to be enabled, but that's fine. The problem is that if I then move the mouse in such a fashion that the grid scrolls such that the cell that I had initially clicked on is no longer enabled, then the cell doesn't raise events any more, and the MouseMove and MouseUp events stop happening.I only see one viable solution, which is to not toggle the enabled state of the grid cells. Instead, I would have to have to add a custom property that would make the control act and look disabled as far as the user was concerned, but it wouldn't be disabled as far as the program was concerned such that it would keep raising mouse events. This would be pretty rough, since I would need to prevent the control from appearing to have focus even though it technically would have focus
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Jun 8, 2011
I'm trying to print my form which I created with Visual Studio. I'm using power pack printing. All goes really well but I'm missing 2cm on the right side of my printout. Page on printer is set to A4.
This is what i try to do but no luck:
PrintForm1.Print(Me, PowerPacks.Printing.PrintForm.PrintOption.ClientAreaOnly)
Whatever I change, it is always printing the cropped page. I'm using xps printer at the moment and there is no zoom option. Can I set the form to zoom to fit the page?
The borders are also too big. Thats why my printout gets cropped, but I have no idea how to change it.
The size of my form is 711 x 1034 pixels, it's a desktop application.
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Jun 14, 2012
I loaded up VS 2010 to work on a VB.NET project but for some reason the Run/Pause/Stop buttons are missing from the toolbar and I cannot set breakpoints. Only changes from yesterday to my system was this morning Windows was trying to install Visual Studio SP1 updates but all failed.
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Nov 24, 2010
I am developing a software that catches streaming data. Unfortunately, there is no pattern or sequence on how this data comes in. So what I have initially done is to catch then write to my MS Access DB. Unfortunately, while writing to the DB, I am missing some data that is streaming since writing takes a little bit of time before it goes back to the catching syntax.
I am planning to multithread the DB writing then just call it from my main program. Do guys know any website/tutorial where I can learn the basics for multithreading? I am using Visual Studio 2010. Or if ever, does any one of you have a sample program where I can just learn from?
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Mar 22, 2011
I have a filter which is applied to a database on a listboxchanged event, and applies the listbox.text as the filter, so for example if the selected item in the list box is 'Terminator 4' then thats the filter. Its set on the listbox selected changed liek this;
[Code]....
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Mar 16, 2012
I have this piece of code which goal is to compare ALL records from recordset rs1 to ALL records of recordset rs2. Im doing something wrong because, when the code finishes I find that some records that fulfill the matching condition are not being considered as matched.
[code]...
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Jan 24, 2012
I have been using the VB IDE for many months on a VB6 translation to vb.net 2010. I have had no troubles building and running in debug,until the message below just appeared. This now prevents me from running in debug. I have not used Publish in the Build menu or used ClickOnce. The Project - application page has "enable XP visual styles" checked. I do not want this unchecked, which will remove the error message below.
The error message is:
Error 2 Could not find file 'Microsoft.Windows.Common-Controls, Version=6.0.0.0, Culture=*, PublicKeyToken=6595b
[code].....
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May 8, 2009
It is possible to catch an exception and throw a new exception which wraps the first exception as an inner exception: [URL] Also, if I call a function and it throws a certain error, but I catch it, will the calling code's catch handler execute? If so, and it is of a higher exception type, is this not wrapping the exception? eg I can throw exception ex of type IndexOutOfRange, log it but rethrow, catch a higher up exception and do something, or I can throw a new exception and wrap an inner exception like:
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Jun 4, 2012
Dim cellidentification = ComboBox1.SelectedItem
Dim SCR = ComboBox2.SelectedItem
Dim mySelectQuery1 As String = "SELECT [" +
[code].....
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Jul 19, 2010
I am trying to make a program to auto login to a website and answer a question.
<form class="dailiesAnswer-input dailiesForm" action="">
<textarea style="height: 44px;" class="dailiesAnswer-text-area">ANSWER HERE
[code]....
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Feb 25, 2011
Every time I compile my application, during install I get the error:Cannot download application, the application is missing required files
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Sep 29, 2010
I am in trouble with publishing my project that uses an embedded database file. I publish my project but when I try to install and run it, it gives me an error as "Unhandled excception occured in your application. Database.accdb file could not be found." I understand that the problem comes from the missing database file. But in the project I assign this file as "content" and I believe that it should copy the file to the required folder that way, right? I also tried to "compile the file" in project but if I make it, visual studio gives an error.
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Apr 1, 2012
Public Sub db_UpdateWorkHistory(ByVal WorkHistory_tablename As String, ByVal WorkHistory As DataSet)
Dim Conn As OleDbConnection
[code].....
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Aug 5, 2011
Im trying to execute on the click of the submit button adding the text in textbox 1 to the field status within the mysql table. My code is:
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
End Sub
Private Sub Submit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Submit.Click
[code]....
And the error I get is NotImplementedException was unhandled.
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Sep 1, 2011
I have a field that I want to check to see if it has a value or not. But my code is not working. I am using:[code]
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Dec 19, 2010
I have some data in my clipboard (or textbox) that I would like to put into a field on a webpage in the webbrowser control.
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Aug 5, 2011
I'm quite a newbie when it comes to coding. I am creating a bot to automatically fill in a form for me.I've got everything but the birthday down. When I go to debug, I select my month, date, year, and click the start button. It'll load the webpage but it won't fill in the year section of the birthday. I looked over the code and it looks fine to me.
[Code]...
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Jun 4, 2012
I was doing my project and came across an error (The I/O operation has been aborted because of either a thread exit or an application request) regarding this
"Private Sub SerialPort1_DataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles SerialPort1.DataReceived
If closingdown = False Then
received = SerialPort1.ReadTo(vbCr & "R") 'Motion port receiving data. needs a vbCR & "R" is sensor out is an ASCII "R" followed by three characters (which is the distance measured)
End If"
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Feb 8, 2012
I'm writing a program that's supposed to keep the employees at my work away from doing things they're not supposed to on the computer. So I made a "launcher" window that's only closeable with password. I also disabled task manager. However when I start an application from my launcher window, the launcher window goes over it because of its topmost property.
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Dec 6, 2011
I have this SQL Statement:
de.SqlStatement = "SELECT A.Name, A.Catagory , COUNT(Patient_ID) AS PNO FROM PatientApplyToAssociation P INNER JOIN Association A on A.Association_ID = P.Association_ID WHERE A.Catagory='" & "health" & " '" & "' GROUP BY A.Name '"
[Code]...
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Dec 16, 2010
i dont understand what this means. im not using an array as far as i can tell. i am in a vb class and wou. here is my
Public Class frmMain
Private Sub frmMain_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
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