Text Encodings In .net, Sql Server Processing?
Jan 7, 2011
I have an application that gets terms from a DB to run as a list of string terms. The DB table was set up with nvarchar for that column to include all foreign characters. Now in some cases where characters like ä will come through clearly when getting the terms from the DB and even show that way in the table. When importing japanese or arabic characters, all I see are ? Now I have tried converting it using different methods, first converting it into utf8 encoding and then back and also secondly using the httputility.htmlencode which works perfectly when it is these characters but then converts quotes and other stuff which I dont need it to do. Now I accused the db designer that he needs to do something on his part but am I wrong in that the DB should display all these characters and make it easy to just query it and add to my ssearch list. If not is there a consistent way of getting all international characters to display correctly in SQL and VB.net
I know when I have read from text files I just used the Microsoft.visualbasic.textfieldparser reader tool with encoding set to utf8 and this would not be an issue.
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Aug 18, 2009
I am connecting to my mail server using IMAP and Telnet. Once I am connected I am marking all items in the inbox as read. Some times the inbox will only have a couple of e-mails, sometimes the inbox may have thousands of e-mails. I am storing the response from the server into a Byte array, but the Byte array has a fixed length. [code]...
But the response from the server varies based on how many e-mails are successfully marked as read since I get one line of confirmation for each e-mail processed. There are times where the response may contain only 10-20 lines, other times it will contain thousands of lines. Is there any way for me to be able to get the response from the server in its entirety? I mean it seems like I would have to know when the server was done processing my request, but I'm not sure how to go about accomplishing this.
So to reiterate my question is: How can I check in my program to see when the server is done processing a response?
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Jan 18, 2012
Say I have a simple web app written in asp.net/vb.net. The web page has one button. When you click it, it does some junk in the code behind. What I would like to do, is when the page reloads, after the server has done its thing, to execute a JavaScript function.
Now the only stipulation is that it can only happen if the button was clicked. Not just on any page load. Is there a simple way to do this?
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Mar 18, 2011
I just learned some basics of multi threading in VB.net recently as I came across processing a large List of records and inserting them into SQL database one by one.
I have code look like this:
Private Sub btnLoadNow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadNow.Click
Dim autoLoad1 As New Thread(AddressOf AutoLoad)
autoLoad1.Start()
[CODE]...
Itemlists is a global lists i retrieved from database, everything looks fine to me but when i run this program, I found that the threads are inserting one records 9 times into the database(I have 9 threads in total), which makes me think that maybe i need to specifically assign 1/9 of a list to each thread? Is there another way to do it which doesn't require the splitting of the list, if not , how do i split it then assign?
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Apr 1, 2011
I am porting over some code from .net (vb) to php and I came across some md5 hashing that I can't reproduce in php. In the .net one there are two functions one uses UTF-8 encoding and the other uses Unicode encoding. The output is a different hash when passed in a string
// First function (returns GUID)
Dim oHasher As Cryptography.MD5 = Cryptography.MD5.Create()
Dim oEncoder As New System.Text.UTF8Encoding()
Dim csData() As Byte
[Code]...
but they both produce the same result. Is it possible to produce the same results in php with md5 hashing?
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Jan 6, 2010
2008 Array Processing and Sequential File Processing
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May 19, 2011
Im a college student and this is my first programming class, i am having extremely diffcult time with arrays and sequential file processing. Im not asking for the whole program, just something to get me started and hints along as i progress with it. Please help me get started on my program, its due in 2 days.
Here are the requirements....
1. The program must input any number of individual�s last and first names using two separate textboxes.
2. The array of names must be sorted by the last name using a bubble sort. You must code the sort.
3. The program must be able to recall the names from the file and add to the existing list of names so that more names can be added to, sorted, and written back to the file in sorted order.
4. Sort in ascending order: A to Z
5. All names must be displayed in a listbox in sorted order when the user wishes to see them.
6. In the listbox the last and first names must be separated by a comma and a space. Example: Smith, Mary
7. The user must be able to search for a name in the array, using the binary search algorithm. You must code the search.
8. Do not use module-level variables. Instead you may choose to use Static.
9. The program must be designed using Visual Basic 2008
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Jun 2, 2010
We have a Windows based application whose GUI is in Unicode coding (UTF-16 I believe). But each time I copy a string from a cell of MS Excel 2003 or from Nodepad and paste it to the GUI of our application, the string can not be displayed correctly, just comes out. ( but if you type directly from the keyboard into the GUI, it's fine). I believe it is because the string from Excel or Notepad is one-byte string (maybe UTF-8, I am not sure). What is default encoding in Excel 2003? How can I make it work correctly - change the encoding in Excel or Notepad or some other way?
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Sep 7, 2011
I want to loop through all the items in the items, but first I must to cast to appropriate type which I fail. [code]
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Feb 24, 2009
i would like to create/open/edit/save microsoft word document from my vb.net application.Is there any text/word processing control/component or library in vb.net ? as third party tool 'tx text control'Developer
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Nov 15, 2011
I am currently creating a merging program which is processing multiple text files with header. I've manage to merge the text files but I'm stuck with the header that needs computation.
path of input files and header explanation: Input Files
After merging, I need to put back the header, adding up each values, which I explained in the path above. How can I do that?
Here's my current code:
Imports System.IO
Public Class Form1
Dim openFolder As New FolderBrowserDialog
'The routines must be
[Code] .....
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Feb 25, 2012
I have a long string containing a bibliography, alternating between lines of paper-title/comma-separated-author-list, like the following:
Learning Programs: A Bayesian Approach
-P. Liang, M. Jordan, D. Klein
-Variational methods for a Dirichelet process
-D. Blei, M. Jordan
What I want is a list of unique authors (alphabetized by last name) and counts. In the above example it would be:
D. Blei (1)
M. Jordan (2)
D. Klein (1)
P. Liang (1)
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Apr 18, 2011
Rather complicated question here. I am improving the text coloring in my custom RTB ontrol, and it is pretty simple:Quote:1. Disable drawing (SetDrawing(False))2. Get current selection
3. Select lines to colorize4. Process selection RTa Font object.
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Feb 13, 2009
I created form2 in which there was a Label to display processing status text. In form1 right before serial port ran I used Form2.Show() and Form2.TopMost = True to display processing status. However only blank Form2 was displayed without any text inside, which means the Label in Form2 was not running. But after serial operation was done, the text in form2 came up, at which time I need to close it.
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Aug 18, 2011
I'm currently "trying" to make an app that gets a certain text from the client and sends it to a server and the server sorts it out every text that he gets from the client into a different label every time he gets a text from a client. For example :
Client1 sends certain text to Server and server puts it in label1.text
Client2 Sends different text to Server and server puts it in label2.text
Client3 sends different text than 1 and 2 to Server and server puts it in label3.text
and so on.
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May 2, 2012
I have column with bit datatype in sql server table(2008).while returing to text box its returning true in text box instead of 1.i tried converting it from true to 1 using txtboolvalue.text=Math.abs(CINT(ReturnList.Item(34)).tostring. But it doesnt convert true to 1
Secondly: im checking for columns in datatable if there are any nulls. its checking for nulls in the sqlserver table but its returning true if there is a null.i just want it to return NULL is there is null i textbox..
CODE:
Then
CODE:
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Feb 21, 2010
i want to be able to upload text from multipletextboxes on an ftp server text file eg:
name: (this will be the name of the text file) (texbox1.text)
email: (this will be inside the text file) (textbox2.text)
company: (this will be inside the text file) (textbox3.text)
number: (this will be inside the text file) (textbox4.text)
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Feb 8, 2012
At the moment, my project has a method do_job(jobid,userid)
This method take a minute or two, and then redirects to another page. This has been rewritten so that it now runs in the background and redirects to another page whilst the thread which do_job is on continues. - This works fine. In a button_click event in a default.aspx page :
Dim d as New do_job_delegate(AddressOf do_job)
d.BeginInvoke(jobid,userid, New AsyncCallback(AddressOf Callback),d)
Response.redirect("results.aspx")
[Code]....
So what i want to happen is - the longest time that do_job takes is the longest time of the longest job (30 seconds), rather than - 30 seconds x number of jobs = time it takes at the moment.
As i'm already using a delegate to detact the process from the ui, can anyone provide any advice/best practice on how i should rearrange my do_job method so that it can handle concurrent tasks to further boost the overall speed.
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Nov 11, 2009
Is there any way of doing parallel processing in VB.net. Like running a IF-ELSE and CASE in parallel.
For example i'm incrementing a counter in a IF-ELSE statement. And for each count i need to display some thing using a case statement.
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Mar 15, 2011
How can I keep the GUI active for my windows form application if I am processing some data in db and my process is waiting for result ?
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Jun 18, 2012
I want to process MSXML which is generated by Visio 2010, Which Language will be helpful to work with the generated XML,
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Mar 31, 2011
If vb application (windows form app) is calling a store procedure and it takes 5-10 mins to SP to finish and meanwhile the application is (forced to) close,
what will happend at the SQL side?
Will the proc completely run even though the app is not running anymore?
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Mar 18, 2010
I want to run my vb.net 2003 application from command line and accepting only one parameter(argument)....... BUT it should run without GUI, only a function from my code would get run in background..
[Code]....
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Feb 3, 2012
Does we have a good & full image processing function in vb.net? If not. what is best reference for image processing in vb.net?
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Oct 18, 2011
I am looking for a solution to implement Credit Card processing to a POS system I have written. I have been coding VB for about 7 years but never had a need to process credit cards.
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May 25, 2009
I haven't seen a related thread (yet)I have a VB windows application that uses a datagrid to display a text column and a checkbox column. Only one row in the display can have a checkbox entry = true. If a checkbox is selected, the app is to search the rows and all other checkbox entries are to be set to false.My event handler is: Private Sub dgMember_CellContentClick(ByVal sender As System.Object, ByVal e As ystem.Windows.Forms.DataGridViewCellEventArgs) Handles dgMember.CellValueChangedI first had to have this handler code check a flag and exit if true (when initializing the display) because it was called for each row during initialization.
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Mar 22, 2011
I have a form with several buttons on it.When a button is pressed,it will execute some remoting proxy method on the server. There is some delay in the process before there is a result returned from server .Currently,I tried to disable the button in the _Click event, hoping that a 2nd, 3rd and the following clicks would not be registered.Unfortunately, those input from the mouse clicks were queued by Windows.
So once the _Click event has finished running, it will immediately get executed again due to the earlier clicking.I tried to create a form (Notice) to display some status message, hoping that clicks won't be registered on the button. Despite setting the form to maximize and on top of the caller form, the clicks still get registered.Then I thought of using .ShowDialog(). Unfortunately, it halts the processing until I close the form. So I did something more complicated by passing in the method into Notice form, so that it would execute the _Click method via an address pointer.Unfortunately, after all these coding. The buttons still get registered with the mouse clicks.So now, is there any way to overcome this clicking queue that Windows registered?
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Dec 1, 2010
i have 10 checkboxes...i want a short way to check if checkbox1.checked=true and check box3.checked=true.... blah blah blah and so on to do codes...i was using long typeing code like:
if checkbox1.checked=true and checkbox2.checked=false and checkbox3.checked=true and checkbox4.checked=true and checkbox5.checked=true and checkbox1.checked=true.....etc then
msgbox"done"
end if
[code]....
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Apr 7, 2010
i am using vb.net to program and process some files.I pick files from one folder process them and once i process them successfully i should store them in a different folder. when i do fi.move(destination folder) i get an error message saying "THIS FILE IS USED BY ANOTHER PROCESS" below is my code
[Code]...
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Dec 17, 2009
I'm thinking of making use of online technology to do some validation and processing for my program but I'm unsure of its feasibility. I need to create a program whereby the client can retrieve the data/settings from website say http:[url].... .Another example would be allowing the program to run until end of December by making use of online time service to check the date so that user can't change any settings from their computer.
While discussing about retrieving the data either through html static site or webservices, another thing I'm concern is transmitting the data from client side to my side.I wonder what is the best and free way to do that? As I'm thinking of using a free smtp gmail to transmit data but I'm worried about the security issue as credentials would be stored inside the program and also firewall might block data from sending out. Another choice would be sending a POST request, but I do not have any server or is there any free server that allows user to post some small bytes of data?
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