Changing A Record In CSV?
Mar 8, 2012
my school project were making a points sytem for students to get points for being good etc and claiming rewards.I have a problem where in the csv file i need to save a students new point total into the csv which looks like this Student1,username,name,points
Student2,username,name,points and so on, however i cant figure out a way to change just 1 persons points, at the moment i have this code.
Try
Dim newtotAL As Integer
Dim pointstoadd As Integer
Dim pointsalready As Integer
[code].....
This works however it changes the entire row of the file.
View 1 Replies
ADVERTISEMENT
May 14, 2010
I have some web-radio site and i want my program to record the song name from the webpage, i dont really know how,
i made RichTextBox and i made a WebClient....
I dont know how to make it look for the string that shows the name song.
View 4 Replies
Aug 22, 2010
I have been dabbling in VB before and i played around wiht linq to sql back then but im wondering what i should go with here.I need to have a list of people.. They should all have their own id nr.
The people in the list are supposed to keep a record of values changing over time with a datetime stamp. (In my case its numbers from a test outcome of blood)You have to be able to add people and delete people. All records will be deleted too.A Chart will read information from the records and display changes over time in chart.I was thinking of doing it with linq to sql and i was kinda aiming at Creating datatables with id names from the script
Havent found a way of creating datatables from a script though..I was hoping for a solution like that.. And i was hoping id be able to search databasetable names.
View 6 Replies
Apr 18, 2009
I hav a web service which pull records from a database and I am hosting these services in IIS which works fine but I am trying to retrieve the record and display the record in a listbox displaying the time field as the text for that record.I have created the following function
public sub get_data()
dim dt as new data.dataTable
dim service as ws webservice.webservice
[code]...
View 1 Replies
Aug 9, 2010
I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &
[CODE]...
View 2 Replies
May 17, 2010
How do I force users to save the current record (if current record has changed) and not let user go to the next record unless the save button is pressed?
View 5 Replies
Sep 21, 2010
I'm searching for a way to change the font size of selected text in a RichTextBox (rtf) having different font families (e.g. Arial and MS SansSerif) and font styles (underline, bold...) using the FontDialog, but without changing the families and styles. The following code resets all the font attributes, which is not what I want:
[Code]...
View 5 Replies
Feb 21, 2010
While I've previously many years of relational databases and procedural languages, I'm stumbling with Visual Basic. In this problem, the simple situation is that I have two files, parent and child. The primary key of the parent file (Area file) is linked by a relation to one of the two fields that makes up the primary key in the child file (Project file) (unique key is formed from 'area' and 'project'). I have the default table adapters created on both files. I have created two maintenance forms showing one each of the two files in datagrid view format.I can create some records in the Parent (Area) file, but when I try to create a record in the child (Project) file, using one of the valid key values from the Area file, I get the 'ForeignKeyConstraint [relation name] requires the child key values [actual value] to exist in the parent table' which I'm absolutely definitely sure it does.
I haven't done any actual coding for those two maintenance forms, just dragged-and-dropped the files from the data sources screen onto separate forms so it creates the controls itself. But I can't work out, if it already knows the data does exist because I can load it back in to the Area maintence form, why it can't check itself to find out the record does exist. Why does it think the record from the parent record doesn't exist? It does exactly the same thing, whether or not the database is in access or SQL Server Express. I have all the latest updates.
View 2 Replies
Jul 31, 2011
I have two tables Products and Categories with a many to many relationship. I am trying to copy the categories linked to one product (OriginalProduct) to another product (newProduct). The problem is when I execute the SaveChanges() method, I not only get the records in my linking table, but it also creates another copy of the categories in the categories table. I've tried this in many ways but here are the last couple that I've attempted:
' Copy Product/Categories
For Each oneProdCategory In OriginalProduct.Categories
Dim relatedCategory = _productContext.GetObjectByKey(New EntityKey ("ProductInfoEntities.Categories", "RecordId", oneProdCategory.RecordId))
[code]....
View 1 Replies
Nov 15, 2009
I have a problem with my program, and it's really bad because I need to burn it to disk within 12 hours and I can't get it to work: If I create a record, add information to it and click on Next Record, the ID, Status and Notes boxes content will change but the rest of the controls contents are carried over to the next record and I don't know why or how. It was working perfectly but now it stopped and I never done anything.
View 8 Replies
Oct 27, 2009
I am handling many of the BindingNavigator tasks (MoveFirst, MoveNext, etc.)in code to ensure that I always ask the User to save his changes.
The one area I am have a problem is PositionItem. I would like to sense that the User has changed the Record Number in the BindingNavigatorPositionItem, handle my record Update, and move to the Record Number the User entered I have looked all over and have not found any way to do this.
View 3 Replies
Apr 1, 2009
I have created a project that has an add a new record, edit record and a search form, that has multiple text, combo boxes and is working great.Last nite I have added a checkbox under my add new record form and i am saving the checkbox value to my database, so far so good. I would like to be able to search any record that is mark with a checkbox to show up in my search screen when I do a search: [code] The problem that i am having is that now that I have added the code to my project to search for the checkbox field in the search screen and if I leave everything blank and click on the the search button I get no record found. I expected to see all that data, since I have nothing selected. Now if I click my checkbox, as soon as I click on my search button I see that two records that I have added for my test.
View 1 Replies
Jan 23, 2011
My database : table1
ID FIRSTNAME AGE
1 Sumit 22
2 Sanjeev 23
i have gridview 1 and textbox1 and button1 i want when pages load the gridview displays the all records from table1 and also ...i i wanna search record for firstname by typing sumit in textbox1 and click on button1 then in gridview the record of sumit will be shown ..by default gridview display alll records from table1 How to do this My Selct Query is below : but it doesnot display all record ...but it can display record if you search for a particular record .
[Code]...
View 1 Replies
May 23, 2010
I have records in a database. Each record has a Picture path in it eg. "C:\Pics\Image1.jpg". I would like to display a record from my database and also the picture for that record, in a .rdlc report in vb .net 2008. i have succeded in displaying the record but just can't get the picture to show. I am using an Imagebox in the report.
View 2 Replies
Dec 3, 2011
I use This Code To Save Data in Table First I delete record Then Insert record
View 4 Replies
Aug 9, 2011
I am trying to write a system that will send an email to my Client and when my client reply I need to read the Email and push it back to proper Record for the Client.We are using Exchange and outlook, For Sending email I am using smtp with custom coding Which automatically record an email content to the Client File howerver how to read the reply as it is coming into outlook of user machine and push it back to the Proper Client record.
View 3 Replies
May 5, 2010
Im wondering how would i work with a text file. which would allow me to Read the next Record, Cut record out of the program.
View 15 Replies
Apr 15, 2012
I have a access database with these columns. USER_ID,COUNT,TIMES
Let say the current record is this:
USER_ID,COUNT,TIMES
STEVE20,24,1.5
Now I want to updated the current count record and times, but before updating I want the old record to be added to the new record. What should be my query?
View 6 Replies
May 11, 2011
I'm receiving the following error:"You cannot add or change a record because a related record is required in table 'FORN_NIB'."
I cannot understand this error fr the related record really existe on the FORN_NIB table. It is even picked up from there. Here's the code where the error occurs at the .Update instruction:
HTML With rst
.Open("DADOS_RECIBOS", conn, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockOptimistic)
.AddNew()
.Fields("NUM_FORN").Value = Me.TextBox1.Text
[Code]...
View 2 Replies
Feb 9, 2011
Basically, I am making a booking system. On one of the forms, you can: Add, Edit and Delete a record by using the selected index. I can do the Add and Edit part fine but some problems are occuring when I try to delete it. What I'm trying to do when deleting is, copy all the records except the selected one and then copy it back into the original file again.
[Code]...
View 1 Replies
May 27, 2011
Visual Studio Pro 2010 Win 7 64 bit running bootstrapped to a MacBook Pro i5 (blasphemer!!!) works really well though!!New to vb.net, have used vb6 for several years and finding the transition interesting to say the least.I have an access database with a vb.net front end all auto bound by the connection and binding wizards (I know, I know...) Not too complicated, but a simple 2 table related db. On the form the parent table shows customer details with the child table related and displayed by datagrid. I have a field in the child table for images and I have figured out how to store and retrieve images to the db. I am using the datagrid.rowheadermouseclick event to reload the picturebox on the main form as I click down the child table datagrid. Now I need to be able to click the bindingnavigator, go to the next record and have the program reload the image for the next child record. The problem is I'm trying to use an event from either the datagrid or bindingnavigator to reload the picturebox in the child table after moving to the next record, but all of the events I am trying are firing before the next record is moved to and therefor the logic I'm using to retrieve the image from the db is not working.
Anyone with an idea on how to move to the next record and then run my logic to populate the picturebox? What events might I use that fire after the next record has been populated? I know this is probably not that hard, but I have been racking my brain all day now.
View 2 Replies
Jan 12, 2010
This code i had use for create a field in DB Access 2003:
SQL = "ALTER TABLE plano_contas ADD declperiodica06A char(40) WITH COMPRESSION NULL)"
Dim command1 As New OleDb.OleDbCommand(SQL, con1)
con1.Open()
command1.ExecuteNonQuery()
con1.Close()
like you see the code create a Text field with 40 lenght...Well the problem is:When i save a new record the record it's save in this mode: "100......... .........................." - the points means spaces and should be:"100"After try a lot of things i'm without more solutions in find why this happen!
View 2 Replies
Jun 6, 2011
i have one textbox ,this textbox contains a number ,i want to delete a record by searching that number in two tables Table1 and Table2,the record may present in Table1 or Table2 ,so it should check both the Tables ,if it is found in table1 it should delete or else from table 2 it should delete.
View 3 Replies
Oct 20, 2011
Basically i am making a software that will be interacting with a database (sql).Now what i wanted is a loop which after every 30 minutes, connects to the database finds some info and executes a bunch of statements.For the sake of testing i have made the timer tick at 1 second, and display a record in a database in a label continuously just to see if it works (i will later make the tick 30 min)Now this is what i have tried till now , it prints the record in database perfectly after 5 seconds, but after that just fails.[code]I want to infinitely make a loop in which after every 30 minutes has passed it would connect to the database get a record and then use the value of that record to perform some operations. And this has to be done in the background.
View 2 Replies
Jul 14, 2010
I am inserting new record in ms access database by using VB.NET but when i insert new record it replaces the existing fisrt record the code i am using as follows
Coding:
Dim cnString As String
cnString = ("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:\PaymentSystem\PaymentSystem\bin\Debug\Payment.mdb;")
[Code].....
View 2 Replies
Sep 12, 2010
I have now wasted over two days going round & round in circles with the pathetic excuse for a Help System Microsoft now makes us put up with (& nearly blown my monthly broadband data cap doing so).I have lost count of the links that do not exist.The Give Feedback option also does not work (I do not like Microsoft Outlook, & in spite of having set Windows Mail as the default mail that doesn't work either!).Every VB example I have downloaded has failed to operate as it should (if at all), so surprise, surprise nor does my implementation of what they say is how to do it! please give me the "exec summary" version of what I need, ON ONE PAGE which is: Correct way (& syntax) to (in VB code):
1 Open an existing SQL compact 3.5 database THAT IS WHERE I SPECIFY - NOT WHERE the wizards keep saying it is(it against my instructions)!
2 Search to see if a particular record exists in the database (eg WHERE ColumnName. FieldContents = ContentsImLookingFor)?
3 Retrieve the found record into my own record buffer?
3 Add the record if it does not exist?
4 Change the record?
5 Delete the record?
6 Close the database?
The rest I will do MY WAY, a thousand times faster & more efficiently than anything I've seen "documented" so far. Surely that is not a huge ask requiring GBs of "Help" garbage leading nowhere?I've only been programming for 25 years (but not in this environment),
View 3 Replies
Mar 26, 2011
when i try to delete a row . always restricting to delete on certain Table table.( DELETE ERROR tble_tombstone) message comes up.
View 8 Replies
Sep 21, 2011
how to view the next record and previous record in the database.? just like in the picture below.? what condition should we use.?
View 8 Replies
Apr 16, 2011
I'm maintaining a Datagridview on my Windows Form. When I open the form all the contained records are displaying, which is from SQLserver Table ok. when I open the form the datagridview should show just black and after I insert a new record that particular record should only display on that form gridview. [Code]
View 1 Replies
Mar 15, 2009
i need to disable the next record button if i was in the last record and i need to disable the previous record button if i was in the first record
View 7 Replies
