have a tab delimited text file, which I'm reading into a datatable and showing in a grid.I see that I can't update the text file with any changes made to the data, using an UPDATE command. So how would I go about doing this?I could write out the datatable to a new text file, this is not a problem. But I'm only retrieving X records from the text file, so the datatable won't hold the entire text file.
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i am trying to do a text file to save some configurations. Basically when the application starts it will check if the text file is exist, if not it will create a new text file. Now i'm having a problem is when i try to append the newly created/exist text file, sometimes i need to press the 'save' button many times to update the text file.
Here is part of my When the form loads
Private Sub Config_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If My.Computer.FileSystem.FileExists("C: extfile.ini") = False Then
[Code].....
I have one combobox, two buttons (Add and View) and listbox. When I click button Add text from combobox is added to text file. This is code for Add button:
[Code]...
I am working on a program using VB.Net 2010 which will enable me to setup groups of files & folders for back up with syncing capabilities etc. I have a concept program which is based on some sample code I found out in one of the VB.Net forums. I have modified it from a command line based program to a form based program. At the moment I consider this code to be a "concept" program which once I have the various copy/sync routines developed and debugged will be integrated in to another program I wrote for
creating "Back Up" groups to automate the process. There are some 3rd party programs that do similar things that I want to do such as Microsofts Sync Toy, but none of them offer the grouping and exclusions options that I am going to program in to this backup/sync program.
So here is my problem, I have the included code taking two folders, a source and a destination, and copying everything from the source to the destination. It will skip over any unchanged files/folders and will delete anything found in the destination folder that is not found in the source folder and it will update all files in the destination folder that have a newer version in the source folder. In other words it will mirror image the source to the destination but will be smart enough not to copy unchanged items from the source to the destination thereby saving a lot of time. The sync part of the program is working fine, the displaying of the progress and results is not.
[Code]...
I am trying to write a string to last line of the text file by using timer 1 second interval. I tried use StreamWriter and Writeline but it looks like always write on the first line. Or I have to open the streamwriter when the form load and keep it opening?
View 4 Replieshow to update records from 1 text file into 2 different sql database.
Name of the sql Table is Payment2SQL_Success_P() & Payment2SQL_Success_E()
is the code below is on the right track.
Select Case "AGENCIES"
Case AGENCY_AV Or AGENCY_SR Or AGENCY_IP Or AGENCY_TM Or AGENCY_MS
[Code].....
I am trying to select Multiple files and then read the file 1 by 1, i want to know how to specify the file number in Visual Basic .net 2008
Here is a sample code which i have used in reading the text file.
With dlgOpen
.Filter = "txt Files (*.txt)|*.txt"
.Title = "Open Text Files"
[Code]....
Actually my text file is a dump file and i need to make a program to process this dump file. I may ask some stupid questions but this is just a beginning, i want to parse INDIVIDUAL text file line by line. In the above code i have used the ReadToEnd function in order to display it in TextBox but i may use ReadLine Function or Read function to read line by line or characters respectively.
I have attached an Access Database with the predefined tables in it, I want to update the contents in Access Database. Supposingly if my textfile contains Names (Sam,Julie,Joseph,Marina), how will i update my attached Access table in vertical order !
I've been pondering upon my idea on how to create/update a text file using each item in a listbox as lines, but I fail each time. I've searched this forum as well as my friend, Google. Still nothing.
View 3 RepliesHi, i'm trying to use the treeview to display the text of a rtf (rich text file) file when an specific node if clicked.HomeOMGWOOTFor example, if i pick OMG, i want the text of lol.rtf to be displayed on a richtextbox. But somehow i just can't manage to get it... I know to import the text of a .txt file to a textbox, but using the treeview makes it more complicated.This is the code im using right now:
Private Sub TreeView1_NodeMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeNodeMouseClickEventArgs) Handles TreeView1.NodeMouseClick
Select Case e.Node.Index
Case 0
[code]....
Another thing is, that i can't import the *.rtf text into a richtextbox and i don't know why.
I have several group boxes on a winform. within each there are several labels.I am accessing the group boxes with no issues but I can't seem to find a way to update the labels within by looping. They have the same name except the last character which is a number 1 - 9. ex. lbl1, lbl2 ... lbl9.I need to update the text of each label in code with text I get from a database ex. lbl1.text = one, lbl2.text = two etc... I want to loop through the labels to assign the text. Getting text from database is no issue what I am not doing properly is getting the labels.
do while QstNum < 10
Dim ln As New Label
ln.Name = "SC_Cat" & QstNum
[code]....
I have a problem with updating records from vb to access, As i am a fresser with vb software request you all to guide me in resolving this issue. is there any defult code for reference.
View 2 Repliesupdate values in a CSV file.I would prefer to use ADO and write a query to update the values.
View 2 RepliesI can't get my code to update my xml file the code is
For Each node As XmlNode In xmlDoc.GetElementsByTagName("element")
If node.Name = "ScheduledStationAETitle" Then
node.InnerText = Station
[Code]....
I have code which saves DGV contents including check box columns as a comma separated text file. I also have correct code which will take the text file and re-insert it into the DGV at a later time. This all works.When I'm working on the DGV, I have this
Private Sub DataGridView1_CellValueChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellValueChanged
If DataGridView1.Columns(e.ColumnIndex).Name = "Column12" Then[code]....
So that when the check box is true, columns 1 and 3 turn different colours, and when false, go to a yellow colour.However, when I "re-insert" my DGV info from my text file, the check boxes come back correctly - as true and false on the right rows - but columns 1 and 3 don't change colour. I've tried a "DataGridView1.Refresh" option but not getting it to work.The DGV is unbound. I need it to recognise which check boxes are true and update automatically when the information is opened from a text file.
how i can add, delete, edit, update data of ms access file using visual basic 2008
View 3 RepliesHow to update a file for a stock control system in vb 2008
View 2 RepliesI have a program that is reading and writing to certain memory addresses to a particular application exe...
So I have a listview control with 4 columns and X rows
| Name | Address | Type | Value |
Name: Is just an identifier so the user knows what it is.Address: Is a specific memory address (eg 0058AFA0).Type: Type of value stored in the address (eg, 4 Bytes, Float).Value: Value to store in the address.Im looking for a way to go through each row, take the address and use this to read the value at that address and then update the value on that row
[Code]...
i am working on read line by line . At each line that my app read , i added a event . How do i read a text file till the end and Stop it? there is how it work :
[Code]...
how to permanently save to text files then re-open all of the information again using SFD and OFD. Now my teacher has come back at me and said that i need to be able to save the information from multiple text boxes and have the text in certain labels to also be saved into the one text file (the labels need to be done because it is a database and these labels are like the fields and the right text box needs to match the right label)
View 39 RepliesI have this Quiz software that lets you create online multiple choice quizzes which are great for studying (I am in grad school and I'm trying to use everything I can to learn). So the Quiz software is great but it only lets you input questions by hand, one by one. I took a look at the .xml file that the quiz program spits out and came up with the idea to try and make a converter so that I can import many questions at once. I was hoping to try and solve this limitation by doing the following:
Take a .doc that say a tutor gives us with a bunch of practice questions, and then take that into Crimson Editor, and then format it so the question is on line 1, the multiple choice answers are on lines 3,4,5, and 6, (for the next question, the question would be on line 11, and the answers on lines 13, 14, 15, and 16, and so on) and then take that saved .txt file into my program, hit the generate button, and it will spit out the .xml file, and then import that into the quiz software to generate the online quiz.
Here is an attached screenshot of my program layout so far:
I figured out how to open a text file by watching simple youtube tutorials, but I don't know how to have it generate the stuff and have it show up in the bottom text box. I know how to do the coding to convert the txt to proper xml code but I don't know how to be able to save the contents of the bottom text window to an xml file.
how to do this for vb6 however i am using vb 2008 and the code for vb6 does not seem to work.
I have designed a form with a text box on it, and a command button underneath. The idea is to run this as a sort of stiky notes section.
I want the text box to read rich text into the textbox (C:\\stickynotes.rtf")
Then i have a command button underneath which i want to save the content of the rich text box to the rtf file (C:\\stickynotes.rtf). This is so that the user can edit and ammend information.
here is some code i have so far
Dim fileReader As System.IO.StreamReader
fileReader = My.Computer.FileSystem.OpenTextFileReader("C:\\stickynotes.rtf")
im trying to have the user press a button and a window pops up to select a file. then it reads the file and puts it in a text box. how could i do this?
View 1 RepliesI would like to be able to read data from a text file, be able to edit it and save the new edits to that file over writing the old ones.
Dim FILE_NAME As String = "C:cat4 ext.txt"
Dim TextLine As String
If System.IO.File.Exists(FILE_NAME) = True Then
[code].....
I want my program to read certain text in a text file. For example if I have a text file that contains the following info..
acc=blah
pass=hello
I want my vb.net application to get that the account variable is equal to blah, and the password variable is equal to hello.
I recently made a program that will automatically log in a site and start a game. I have it so that you can save the Username and Password to a text file. I need the text file to be encrypted though, and then decrypted when you load it back up.
View 14 RepliesI have a text file and I want to take the data from the text file and write each line into the excel file (into the same column). How do I accomplish this? I know how to read data from a text file, but I don't know how to insert the data to a excel file..
View 5 RepliesIts a League Organizer, basicly ive started it off with 16 teams and end up with 1(winner) 16 box's on the far left, then 8, then 4, then 2, then 1. the 16 box's have "Team 1" "Team 2" etc... ive put a new/clear/open/save button in that order.
BUT this is my problem..when i save(Save Button) the text file saves all the text wrong it ends up like this...Team 1Team 2Team 3Team 4 Etc...
But i want it to save like this
Team 1
Team 2
Team 3
Team 4
Etc...
The code is...
Dim Save As New SaveFileDialog
Save.Filter = "Text Files (*.txt)|*.txt|ALL FILES (*.*)|*.*"
[CODE]...
how I can encrypt a text file in vb 2008. Then decrypt it and display it in a textbox?
View 4 Repliesi have a problem...i have a text box that bring to me the content of a txt file. I have a delete button, and when i press it the textbox text will erase and i want also to delete the txt file and create another....cand someone help me? The textbox text i resolved it, but i don't know how to make the last 2 things.
View 8 RepliesIve been writing some sort of an ini file for my program to read but the only method I have replaces all of the text so im not even going to say it,is there anyway to like write to a txt file, under the txt already there, so that everything time it has to update the txt file doesn't replace everything?
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