We have a middle tier application which transfers data from one application to other.I need to write few values to a CSV file but every time the code runs it overwrites the prevoius line.How do I start with a new line every time
TextWriter tw =
new
StreamWriter("D:\parsII\Build\CCSDataProp\bin\server\smaple.csv");
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i have a vb project im getting a bit of trouble with.this is how it should work user input text in the textbox. the input text will be count as single character each one by one after been checked they will be writen to a text file but all in caps if use input symbols, there is a look up table to turn that symbol in charater and then write it to the text file. after all that are writen to the text file another part of the program will copy the text file to another location and delete the original one. so here is my problem because the text file will be deleted i need a code that will create a text file each time the programme runs.
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I have a text file containing the data in following format
12345 Abdt3 hy45d et45a 76huj agsj7
Now I want to replace hy45d with another sting that is created on run time. But I am not finding any way to do it. It keep replacing the firt item or append it in next line.Code that I am using is
Public Sub SaveToTextFile(ByVal PNR As String, ByVal CaseCount As Integer, ByVal Type As String)
'- Location of the Text files
Dim targetFile As String = "C:TestReportTextFilesPNR.txt"[code].....
I was just playing around with trying to set up a datacontract that returned a class that had a property that took/returned an enum value. I could set the class up so that it worked great, but the service contract seen by the client had the enum turned into a string, of all things. Had it been turned into an Integer, that would have been useable, but not a string
View 1 RepliesWhat I am trying to do is save a value (from a textbox) to the registry, and later retrieve the same:This is the code (not working) that I have at the moment:My.Computer.Registry.SetValue(My.Application.Info.Title, (TextBox1.Text), "MyFCA")
View 17 Replieswas wondering if it was possible to write/read from a programs memory inside of your visual basic 2008 application. I've done tons of research and "googled" everythingt to be able to read/write values of a running process from with my application.I did read somewhere that you can only read/write up to 4bytes in vb.net, That would be just perfect
View 6 RepliesI need help writting a Trivia Game for a school project. The teacher wanted us to get used to looking to forums and google for help so he refuses to help us for this particular summative.
What I want to know is.. how to use a streamreader to read questions randomly from a text document located in the debug folder (I have 10 questions all in 1 text file in the debug folder, and the same for all of my answers) how to use a streamreader and split function to read answers from a text document located in the debug folder to a combobox.
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I've been researching all over Google for how to Read/Write Floats, Doubles, Longs and String to memory. I believe I have the reading Longs, and Floats working properly. I'll post my Module (which contains all my Read/Writting).[code]
View 2 RepliesI have a DEM file(Digital Elevattion Model File) and I am trying to open the file,where we have Latitude and Longitude values inside the DEM file.And, Now I have opened the file using Filestream and Read the file using BinaryReader.But, I am having a trobule in getting the values of Latitude and Longitude.I am getting Byte values randomly as 1,202,31,271 etc.But, we dont have latitude and longitude values more than 180,and also I am not getting 16 bit UInt values.For example, the values should be like Latitude 20.00416666666667 and Longitude 39.99583333333333.So,read the correct Byte values of the DEM file.The code I have used till now is:
Dim fs As FileStream = New FileStream("C:UsersadminDesktopHeader and DEM fileE020N40.DEM", FileMode.Open, FileAccess.Read)
Dim rd As New BinaryReader(fs)
Dim convertDB As UInt16
For i = 0 To rd.BaseStream.Length
[code]....
lets say I have a form (form1) with lables a-z which are all designed with default text "0". So they all show 0 on program startup. which is fine. I also have a dialog with 2 TextBoxes; I want my program to update the default text/value on (only)form1 labels x, y and z to whatever was put into the textboxes when i press the OK button on the Dialog, so these specified labels show the 'new' value on next startup. Is it even possible or should I save the values to a file which loads the values in the specified labels on startup?
View 5 RepliesIs there a easer way of coding in stead of wrighting long long paragraphs like this in one line [code]All of this is on one line and i got lots of info to put down.."The game will begin on your 16th birthday with your mother waking you up. Today you are to go to the castle for the first time. Leave your bed and open your dresser for a Strength Seed. "
View 2 RepliesWhen I look at a file on my hard disk, e.g. test.csv, when I look at the Properties of the file, it is officially known as, "Microsoft Office Excel Comma Separated Values File", and file types of .pdf are listed as "Adobe Acrobat Document", etc. etc. All of this information can be seen in Windows Explorer too when my folders are displayed by Details. How do you get at this "type of file" information with .NET?
View 2 RepliesI need to get and set a value from an xml file Example:
<?xml version="1.0" encoding="utf-8"?>
<settings>
<snaptoedge>true</snaptoedge>
</settings>
I have a file which contains lines with comma separated values:
Eg:
Line1: a, b, c, d, e
Line2: f, g, h, i
Line3: x, y ,z
I would like to read all first values of the lines, all second values of the lines, and store them in arrays.
This means that 'a,f,x' should go together, 'b,g,y' should go together, 'c,h,z' should go together, 'd,i' (only two because line3 hasnt got a 4th element) should go together, and finally 'e' (one because only line1 has a 5th element).
I am creating a csv file from my vb.net application as shown below
Dim csvFile As String = My.Application.Info.DirectoryPath & "Test.csv"
Dim outFile As IO.StreamWriter = My.Computer.FileSystem.OpenTextFileWriter(csvFile, False)
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But the value in the csv file appears like 1.25778E+12 for 123456545666644565554
I have a question, that is: What is the easiest way to get Integer values from a file.The file is structured like this: (Without the text)10...How many values are in the file 1 2 3 4 5 6 7 8 9 10..The values...I know how to do it, the hard way, but I need an easier way, to teach a friend the basics of Vb.net.
View 1 RepliesI'm having issues accessing the resource file for my project.
Dim rm As Resources.ResourceManager = New Resources.ResourceManager("MyProjectName.My.Resources.Resources", [Assembly].GetExecutingAssembly())
Dim myValue = rm.GetString(lookUpKey) 'boom Object reference not set to an instance of an object.
I think the issue is with the string "MyProjectName.My.Resources.Resources".Would I be better off moving the strings into their own resource file?
I have a problem reading a file with hex values.
The values have this format: (2C 0A 0B 45 32 38)
I�ve tried two different ways to open the file. The first one, is storing in a variable of type string,
Dim srTrad As New System.IO.StreamReader(fichToOpen, System.Text.Encoding.ASCII, True)
sLine = srTrad.ReadLine()
so what I get is �2C0A0B453238�. Then I try to put them in pairs and reading as a HEX value, but I can�t. The only thing I get is the hex value of �2�, �C�, and so on. This is not what I�m looking for.
The second way is storing the values in a variable of type Byte:
Dim srByte As New IO.FileStream(fichToOpen, FileMode.Open, FileAccess.Read)
Dim br As New IO.BinaryReader(srByte)
Dim data As Byte() = br.ReadBytes(CInt(numBytes))
The result here, is pretty the same as before. For the pair �0A� what I get is either (30,41) or (48,65) (hex values or Dec). What I need isn�t to convert a char to its Hex value (I saw several examples for this on this forum). What I need is to know that 0A means 10 (0A is a hex value itself)
im a newbie here, im taking intro to programming wth VB in college and im having problem with the homework here's what im supposed to do
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I have two text files which contains are like this[code]..
When the original files find the same values in drill file than it must overwrite the original file the line from drill file. Let say original file contain T230 than it must serch for same value in drill file if it find than it must overwrite the original file line with drill file line. The content of drill file is not fix. It will allways be update according to need.
is that posible to connect two text file?
I am editing BINary file and i need to parse some values from it without corruption of file, unfortunately I was try everything, but I dont know how to parse it on the byte level. I know how to read, write, search bytes from files but not how to parse it.
View 1 Replieshow to capture the 'ID' literals from the following xml file example using VS and VB 2010. I plan to assign it to a temp variable for later use.
<?xml version="1.0" encoding="utf-8"?>
<Rows>
<Row Sortorder="1">
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Essentially, what I'm trying to do is get a list of values out of a database and put them into a bunch of checkboxes. When the user submits their selection of these checkboxes, I need to see what they've chosen.So I have no idea how many checkboxes I'll need, or what the values will be. I will however be listing different categories. I would like the final result to look something like this:
<h1>category 1</h1>
<input type="checkbox" name="cat1" value="avalue">
<input type="checkbox" name="cat1" value="anothervalue">
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However, I found this seemes to only work in the front end. I need these values passed back to the backend so I can decide what to do with them.
i am building a web application with VS2010 and framework 4
in the web.config i have defined the external file path
<appSettings file="\serverc$InetpubwwwrootConnectionsGlobal_Settings.config">
<add key="var_1" value="xpto" />
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How to match one value to another value in same text file. For example I have a this value : 116.71 33.3 in my text file. I want to check whether another same value exist in a same text file or not.
I used this code to find my first value
Do
myLine = myReader.ReadLine()
Loop Until myLine.Contains("*+*+* Top *+*+*")
Do Until myReader.EndOfStream
myLine = myReader.ReadLine()
[Code] .....
Once I get the value I want to check another same value exist in the same text file or not.
I'm new to VB.net and have only a few projects under my belt. This one has me stumped!! I need to open a file and search its contents hex byte by byte. (Similar to Hex editor). On finding a particular value I need to replace it with a set hex value then write and close the file. So far I have only managed to read / write the ascii equivilant.
View 4 RepliesI want to get a value from 12 excel sheet. is there any way that i get the values without opening the excel sheet? I am using vb.net. if there is a way to read values without opening the excel file.
View 3 RepliesI have A combo box with 5 values in: How would i save all 5 of those values to my file?sw.WriteLine(CustomerIDTextBox.Text + ":" + CustomerFirstNameTextBox.Text + ":" + what????? Once these values are saved how would i go about retreiving them from the file and displaying them back into the Combo box?
View 3 RepliesI have a form with a couple of combo boxes. The first combobox adds items based on each row in an excel sheet.
Public Sub FetchExcelValues(ByVal ControlType As String, ByVal control As Object, ByVal xlApp As Object, ByVal xlWorkBook As Object, ByVal xlWorkSheet As Object, ByVal column As String, ByVal row As Integer)
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This basically reads each cell in the specified column until it hits a blank cell. Then it takes the value of each cell and adds it as items to the first combo box. Now, what I want the code to do next is to take the selected item from this combo box and look for a match in another worksheet. When it finds a cell that matches, it should pick up the value from column B of the same row as the match. There might be more than one match as well, so every time it finds a match, I want to pick up the value of Column B of the same row and add THAT as items in the second combobox.
I know similiar question have been asked but they are a little different so here I go. Basically I have a game in which the user enters their name and they get a score. This name and score then get recorded when they end the game as follows:
Dim userdataSW As New StreamWriter("E:GameScores.txt", True)
strline = frmVictory.TempPlayerName & "," & frmVictory.TempPlayerScore
userdataSW.WriteLine(strline)
userdataSW.Close()
userdataSW.Dispose()
What I then need to do is sort these values in the text file from largest to smallest (based on the number not the name but I still want the name to be assosiated with that score) so I can have the top 10 scores appear in a hall of fame type thing.