VS 2010 Weird Error Even Teacher Can't Figure Out?
Apr 23, 2012
i made a program in which you put in a number like 10, and there are 10 cards. If you put in a number like 23, here is a possible output -
Card #1 - 3
Card #2 - 20
the rest 0
etc, where all the cards values adds up to the number you submit (the values displayed will be random)
The thing is, when i do a number below 10,000, it will come up as one card equaling that number and the rest equaling zero. If i do it a number 10,000 or larger, it will split it like it is supposed to.
[Code]...
interestingly, if you put in a break point, it works like it is supposed to!
What is going on? And why does it matter the size of the number for it to matter?
When i get home i'll edit this with screenshots.
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Oct 26, 2006
I just finished putting the first 6 datagrid controls on my form and i went to go test it and got this build error: Error 4 Value of type 'String' cannot be converted to 'System. Windows.Forms.DataGridViewTextBoxColumn'.C:SoftwareForm1.vb 1425 19..When the line generating the error is this Me.Name = "Form1".where it has the "Form1" portion underlined in blue.This is a weird error because that line was made by the IDE to say the name of the form and has nothing to do with 'System.Windows.Forms.DataGridViewTextBoxColumn'.I tried saving my progress and restarting the IDE with no luck..Now I cannot even access the form in designer mode,One or more errors encountered while loading the designer. The errors are listed below. Some errors can be fixed by rebuilding your project, while others may require code changes.The designer cannot process the code at line 1424: Me.Name = "Form1" The code within the method 'InitializeComponent' is generated by the designer and should not be manually modified.
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Jul 5, 2011
I had a lengthy subroutine with handler routines, like this, before:
Private Sub CompMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _
ToolStripMenuItem3.Click, ToolStripMenuItem4.Click, ToolStripMenuItem5.Click,
[code].....
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Sep 19, 2009
When i was making my program, i went to import Shockwave Flash Object and AxMedia Player, But they were not there. I know a way of restoring them, Dll's but, however i cannot find the DLL in the folder. Can someone either give me the location in an example "/vbexpress/*****" Or can someone give me a download link to the DLL so i can do that, aswell? I think the download link would be the best.
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Jun 6, 2011
Scroll to the bottom, EDIT 19 onwards. See @Chris's comments also for good examples
[code]...
It's all gone quiet since Edit 19ish and @Chris reinforcing the issue with a good example (thank you Chris). I'll make the question a little easier (and attempt to tidy up all of the above), can anyone prove this is not an MS bug or similar? It seems to be something under the hood is not correctly wired up for VB.Net with regards to Nullable Structures and Events? However, all other cases using the Nullable Structures does appear to work?
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Apr 21, 2011
I'm trying to add a string to a listbox if there is none exact string existed inside, but it turns out a very weird error. Look at this.
On form_load, I have this:
AddHandler Server1.OnUserLoggedIn, AddressOf HandleUser
And then,
Public Sub HandleUser(ByVal username As String)
'Here, you handle adding the text to a text box.
Me.Invoke(New PrintMessageDelegate(AddressOf AddUser), username)
End Sub
[Code] .....
The output is when I connect the first client, it works fine. But, when I try to connect the second client, it prints out three times both the listbox1 item and the txtDisplay. It's like get caught in loop, but I have tried other kind of loops like for each and other string comparison too, still work that way.
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Feb 25, 2011
I have a VB application that uses databases and writes information onto an Excel-file. I have the Excel-file in my Project folder(Visual Studio 2008ProjectsProjectXProjectXExcel objektitListy.xls)Every time I open up my project I get the following error:[code]The thing is, I don't know why the error starts up in the first place. Why is the VS 'unable to open the module file' even though it exists in that folder and can be opened normally?Also, why does the error disappear when the file is opened manually from the containing folder?
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Oct 23, 2009
The teachers starter kit .mdf files has not data, or a least mine doesn't. Can someone help, is their an sql script somewhere??
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Feb 21, 2012
just had a walkthrough in class and the example code our teacher gave us does not return a value. I am having alot of trouble with my current assignment because I do not see whats wrong with it. It is supposed to take two numbers entered by the user and add them together for a total with a tax rate, but it continues to return all 0's heres what the code looks like:
Public Class Form1
Private Sub BtnCalc_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles BtnCalc.Click
[code]....
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Dec 10, 2010
I was trying to make a program for a teacher that automatically determines random students that he or she can call on.I'm trying to make a program that will allow the user to add student names to a listbox. Then, when a button is pressed the program will output a random name from the list. I keep getting a lot of errors and can't seem to figure out why. Finally, I need an exit button that should close the program. I need to assign access keys, have a proper tab order, and assign default and cancel buttons for the form. Also, if you know how to implement any extra 'bells and whistles' into the program,I've tried making this program but it comes up with either a lot of errors, or it just doesn't want to debug. Was wondering if I could either get some help with the coding or the "how-to" on doing this.
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Feb 5, 2010
I need to check the current date and month to see if they are only 1 character long (1 - 9 - January to September) and if so I need to insert a 0 before the value in a string.Now the code I have been using is Len(Now.Month) which for some reason is returning 4 even though the current Month is February (thought this would return 1).I I use Len(Now.Month.ToString) it comes through as 1, which is what I want.
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Nov 5, 2011
I wish to make a project where a teacher views a list box with a list of students of a class. When he selects a name from the first list box the second listbox would change its data to show the grades for that one student.
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Sep 25, 2009
I have code that adds 0.25 to textboxes each time + is pressed, and subtracts it when - is pressed. This is the
[Code]...
I don't know of any better way to have it handle each textbox, hence the long string.Anyway, these boxes are populated from a database and this code seems to work fine if there is already a number in the box. If the box is empty and I try incrementing it, I only get the actual "+" or "-" in the box and it locks my whole form out. Clicking other textboxes doesn't activate them, and my buttons press but do nothing. I can't even exit the program with the "X" in the upper right. As far as I can tell that's how to replicate it anyway.
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Sep 12, 2011
Weird Random Number Bug In .Net
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Feb 5, 2012
I'm trying to download this website: url...And filter out the data in order to get the "Original Telephone Company", and etc, but it's showing this data, instead of what it should be showing:[code]Is there any way to fix that / convert it in .NET?
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May 5, 2012
I was getting weird results when doing multiple splits on a string, so I decided to make a simple test to figure out what was going ontestString "1234567891011121314151617181920"If I wanted to get whats between 10 to 20 in Javascript I would do this:var results = testString.split("10")[1].split("20")[0]Which would return 111213141516171819However when I do this in VB I get 111Split(testString,"10")(1).Split("20")(0)It seems the 2nd split is only recognizing the first character no matter what I put.
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Dec 24, 2011
I want to create a regex to find words which have capital words in between them. Can anyone please tell me how to find it?For example: I went to a school forEducation and then didn't study.I want words like forEducation. I think we use [a-z][A-Z] to find all alphabets but can't really find it. I am thinking along the lines of merging the above two options, but then how is it going to check for capital alphabets? Also I wouldn't want to select any words which have capital letters in the start, because they are valid.Reason : This is occurring because of scraping text from online websites and they have no proper formatting. I get these words as text and want to replace them.
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May 31, 2009
I have a text, and it has weird characters in it. How do i remove them? I am using this [code]...
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Jun 29, 2010
I have a graphical button named ba1(blue arrow 1), ba2, ba3, etc to ba8 which coincides with questions on a sig pad 1-Qmax(=8) so that the clinician can see which question the patient is answering at the time.I need this For statement to work but it is giving me syntax errors and nothing much else. I am guessing it doesn't like placing a string and integer together. I have tried turning the int into a str and it balks.[code].....
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Nov 24, 2009
My programming days are many years in the past - so I'm trying to get back into it. My current problem is as follows - I have a word document that is set up as a mailmerge document that is merged to email (through outlook). The merge records are in an excel spreadsheet (the email address is in a field called EMAIL). My emails are getting rejected by the recipient domain because they're being sent too fast (so they therefore think that they're spam).
I need to create a VB Program that will use the document called MASTER and merge it with the spreadsheet called RECIPIENTS and send via Outlook. However, I need it to send the first 10 emails, wait 10 minutes, send the next 10, wait another 10 minutes and continue cycling through until all of the emails have been sent.
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Feb 2, 2011
Got Visual Studio 2010 Express Edition and have been building an app on Windows 7 64bit, then bought that app into work to continue work on Windows XP 32bit.When I load it, it will run first time happily but when I try and run it again it either says The Operation could not be completed or just freezes, crashes or does not responding, yes if I build the app to an exe file it works fine everytime?Due to the fact of odd errors etc I am really baffled and frustrated why it's so random?
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Dec 17, 2010
I am adding characters to a RichTextBox one character at a time and setting the format of that character after it is added. The following code is a distillation of the actual code but reliably repeats the problem I am having.[code..]
While that is odd to me and unexpected, where it happens in the code is even stranger. By stepping through the code, prematurely going to the End Sub and then displaying the form, I was able to determine that when i = 3 and the line "Me.RichTextBox1.Text
= Me.RichTextBox1.Text & "S" is exceuted, the color of the first two "S" are changed from Blue and Red to all BLUE.
I do not understand.a way to add characters to a RichtextBox and set the formatting of those characters?
This example is just color. I the real project I am setting Size, Color, Bold and Italics. I do not know if the solution to this color problem will affect the other formatting information.[code...]
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Mar 8, 2012
[URL]It is a sub that is meant to add a user to a group in Active Directory. However, I can't seem to figure out how to use it. Here is the code:
''' <summary>
''' Method to add a user to a group
''' </summary>
''' <param name="de">DirectoryEntry to use</param>
[code]....
I'm not sure what to put for the first argument when calling it. For example:
AddUserToGroup(?, User, Group)
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Mar 16, 2010
I am trying to write a program where every 30 seconds a jpg file is put in a PictureBox object. So far I am only able to get 1 jpg file every 30 seconds - twice - that is only 2 jpg files and not say 30 jpg files.
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Jun 22, 2010
I have two text boxes, submit button. and a dropdown list with the items(even, odd, and all). I want to calculate the sum of either all "Even", "Odd" or "All" numbers according the selection. In the code below, I have the "all" section working correctly but I'm trying to figure out a way to get the Even and Odd to work.
Some one suggested me to develope a good formula for determining whether a number is even or odd, then calling that from within the program as needed. I've tried that below with the IsEvenNumber function but got stuck. Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
[code]...
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Jul 15, 2009
Below is the code im using to select fields from a table.I have 6 labels on a form. I want each label to have the value of the field selected.
Example,
I have a label named lblTeacher on the form. Because i'm selecting the Teacher field from the table in the OLE string, i want to be able to assign the value of that to the label. This is the same for all the other fields selected. How would i manage this?
[code...]
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Jun 1, 2010
trying to get my hands wet on vs 2010 and i downloaded samples from ms site but when i tried to run some of the DB samples i received this sql error: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) any ideas how to get around on this?
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Jun 13, 2012
I have an array of a structure and I need to assign an element of this array to a variable of the same type. In vb6 I'd use something like the following pseudo-
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Feb 17, 2012
i have my project working fine in vb6,,but when i try to convert it ..well you know what happens 99.9% of the time.Anyhow all i have been able to get working is the code below.which basically just throws a textbox up onto the listview where ever the mouse is clicked at..but i can't figure out how to get it to lock into any of the cells,columns etc.can someone just show me the simplest way to get the textbox to lock into the cell that the mouse clicks on..or subitem etc.I have no more hair to pull out..I'd start pulling teeth..but I'm already passed that option too
[Code]...
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Dec 1, 2009
I'm trying to figure out the 'bytestowrite' command, but I'm not having much luck.I'm sending some info over COM1 to and LED sign, and since it runs at 300 baud it takes a minute or so to transfer. I was trying to use the 'bytestowrite' command to find out how many bytes still needed to be sent, and use that info with a progress bar, but I'm always getting 0 when using 'bytestowrite'
Below is the code I tried to get the bytes left to write into a label box, but I've probably got it wrong (but I like to try to figure things out before I ask for help).
Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
Using com1 As IO.Ports.SerialPort = My.Computer.Ports.OpenSerialPort("COM1", 300, Ports.Parity.None, 8, Ports.StopBits.One)
Label1.Text = com1.BytesToWrite
[code]....
I thought putting it in a timer would keep checking the com port to see if there were any bytes to be written, but it always shows 0.
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