How do I convert an arraylist into a string of comma delimited values in vb.net. I have an arraylist with ID values
arr(0)=1
arr(1)=2
arr(2)=3
I want to convert it into a string
Dim str as string=""
str="1,2,3"
I have a textbox AND 3 checkboxes; checkbox1, checkbox2, checkbox3
In textbox we have 1,2,3
If I type in textbox1 = 1,2 then
checkbox1 and checkbox2 will be checked and checkbox3 will remain unchecked.....
How to do this in vb.net
I recently asked a question about reading a file with Streamreader to variables arrays, but I made it more complicated than need be. Here is the simple version of what I am trying to do:
dim MyNumber(1) as String
strMyFile = 100,200 (I already have this)This is the result that I am trying to make happen:
MyNumber(0)=100
MyNumber(1) =200
I would also like the result to be MyNumber(0), MyNumber(1) as double, but I could do that in a later step. This is almost embarrassing to ask, because it is probably basic stuff.
I need a regular expression that can validate that a string is an alphanumeric comma delimited string.
Examples:
123, 4A67, GGG, 767 would be valid.
12333, 78787&*, GH778 would be invalid
fghkjhfdg8797< would be invalid
This is what I have so far, but isn't quite right: ^(?=.*[a-zA-Z0-9][,]).*$
sort a comma delimited string to different textboxes.Ex.
111,222,3,44,5555,66
to
Textbox1
Textbox2
Textbox3
[code]....
I 've an ArrayList and to join all its elements with a separator in one string I m using...
Dim s As String = String.Join(",", TryCast(myArrayList.ToArray(GetType(String)), String()))
however, I would know if there is a smarter/shorter method to get the same result,or same code that looks better...
am trying to populate an array like so:
Dim tmpArray As String = ""
Do Until x = Form1.arrayCal.Length
tmpArray = tmpArray & "," & x
[code].....
I've got a variable which contains a string like: dim test as string
test="bjcbhiabab,1,1,50,0,1,telepathie2,1,60,0"
Now I need to seperate all those values (each seperated by a comma) into new variables let's say value1 to value9 What's the most easy to use coding for this? I haven't got a clue which coding to use for this :S
I am back, this time may very well be my last. But I will be using this as a great resource if I ever have to do this for work purposes. So far this is what I have. It works. But it doesn't look like the Lab9 specs and test plan. (Attached as .PDF's) Am I just crazy or is there some formatting that I need to do? reservations.jpg is a screen shot of what the output looks like. The UML diagram and specs.pdf should be what is output? Is that what I read? .PDF's if you want to know what is required** I can not explain it very well. Those documents will show exactly what is expected. What I have going out looks like the .jpg I have shown.
Private Sub frmReservations_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
[Code]...
how to make a text conversion like the below pic -
1. the textbox 1 is multiline with an array of comma delimited and tab delimited text.
2. the textbox 2 is one line textbox
3. A,B,C,D,E,F,G is where the position of each string before / after conversion
I have 3 checkboxes and 1 textbox
checkbox1, checkbox2, checkbox3
when i check first checkbox1 and then checkbox3 then in textbox it will appear as 1,3 exactly......
There is way to input comma delimited files:
Using MyReader As New Microsoft.VisualBasic.FileIO.TextFieldParser(currentfile)
MyReader.TextFieldType = FileIO.FieldType.Delimited
MyReader.SetDelimiters(",")
Is there an equivalent way to output a comma delimited file. The approach I used in earlier versions of Visual Basic does not work in .NET.
I have been using:
Printline(1, val1, val2, val3)
In .NET that is not comma delimiting
For now I am hardcoding ... & ", " & ... between variables.
I have spent a long time debugging an application that occasionally goes awry, it ends up that the problem is that the comma delimited text files that I am looping through occasionally inserts a comma within one of the fields.
At any rate, I was loading the text file into Excel to try and spot the error which was of no help, somehow Excel parsed out the field correctly and didn't use that extra comma as a delimiter. Is there any way I can get my application to do the same?
And example field value is: "7-8-ALL (1,2&3)", but of course my split code turns this into two separate array values.
I am relatively new to VB. I was initially using fileopen, writeline, and fileclose to create, write to, and close a comma delimited file. But recently I attended a training course where the instructor mentioned that these old methods will be going away and I should try and use Streamwriter instead. I was successful in converting some of my code to StreamWriter when creating a simple text file using WriteLine.
For example: myStreamWriter.WriteLine(text). But this writes an entire line of text.
I cannot see to find any information on how to create a comma-delimited file using StreamWriter. My old code was something like this: Writeline(filenumber, field1, field2, field3, field4). How to do the same thing with StreamWriter?
I'm attempting to read from a comma delimited file, the values are put into a structure (employeerecords) i want to know how i can access the separate sections of this structure i will provide my code so far, i apologize for the comments I'm making sure i know whats going on, I'm new to this, the code currently just dumps the whole file into a textbox, i would like to be able to access and manipulate the individual fields but i am at a genuine loss.[code]
View 5 RepliesI have been able to load a drop down meny with a file, but the file is comma delimited. I tried to use the split function to only read the first part of the file before the comma, but I'm getting an erroHere's what I'm doing:
Dim Arts As New IO.StreamReader(System.AppDomain.CurrentDomain.BaseDirectory & _
"Artist.txt")
Do Until Arts.EndOfStream
[code].....
my problem is for example if
1,50
1,200
are loaded in listbox1 and i split the "," and its value to textbox1 when i select the index 1 in listbox i get the same value as first index here is my code for load the textfile to listbox
Dim linereader As New System.IO.StreamReader(OpenFileDialog.FileName)
While (linereader.Peek <> -1)
ListBox1.Items.Add(linereader.ReadLine.Split(",")(0))
End While
[Code]...
If i have two textboxes textbox1 & textbox2 and button1 in my ASP.NET and SQL Server database
Database records are:
ID Date Seats
1 15-Dec-2010 1,2
[code].....
I am a beginner at this and I am taking classes, however I am having trouble deleting a line from a Comma Delimited .txt file.[code]...
View 8 RepliesI know how to read comma delimited from a file but I do not know how to read these vales from a richtextbox.
View 1 RepliesI used to just code up a module that looked like this Ref to MS Access 11.0 Obj Lib was set
Dim myaccess as New Access.Application
myAccess = CreateObject("Access.Application")
myAccess.Visible = false
myAccess.OpenCurrentDatabase("c:\path\databaseName.mdb")
But now it seems that even with that ref included, none of these commands exist. From what I've been reading online, to do this via .net, you have to parse the file out and create a serious of SQL inserts. I'm assuming/hoping/praying that there is a more efficient way to do this...
what would be the easiest way to open a comma delimited text file - each field is surrounded by quotes - and then analyze this file to find the record with the most fields being used? right now i bring the file into and access db then loop through each record to see if there is any data.
View 3 RepliesWhat is the best method to parse through a Comma Delimited .dat file? I am using VS2002 and VB. My code will be looking for certain placeholders within the files and pulling the value from that element to populate a table in SQL2000.Here is a sample of one row that is in the database so far:17768 01 1770 003 2009-11-01 00:00:00 5065.14 NULL NULLEach spaced section is taken from a part of the .dat file, but being manually keyed in for now. My job is to automate the reading of the file, and writing it to the SQL database.Here is a sample of the flat file I am trying to parse:
0001,00003470,091411," "
0002,1000,0037707839,0000304220,0000282256,00000387
0003,1000,006795,0004,00000000,0000,00000000,0000,00000000,0000
There are about 12-13 'records' in each flat file, each row being a record as the sample shows.
How to read a comma delimited text file? I want to have a new line for each row. For example it would be (author,book,location).
View 11 RepliesMy customer requires text files to be written in the following format:
"adrian","sigamoney","01","1","B"
No matter what I do I get in file
adrian,sigamoney,01,1,B
I have tried split, replace, adding extra hyphens to string.
I use to code looooong (98ish)ago in Visual Basic 5 but I haven't touched it since 2000. Well now im back and I must say i quite rusty!!Here is what I need help with. I've successfully created a save command for a Comma-Delimited txt file. My problems come from when I try to load the file, I can load the first line just fine. But multiple lines are going to be an issue. I don't quite understand how to tell the program to go through each line.[code]
View 1 RepliesI am looking for a different kind of solution here. I have a database in which I have around 14 tables. I have to write the output of 14 seperate queries to each of these tables in to a comma delimited file. I know how to write it using direct read , loop through and write to text. What I am looking for is a more configurable solution. I should be able to configure my application if a new table/query needs to be outputed. I should also be able to configure the delimiter to use.(I am Ok with C# or VB.NET )
View 1 RepliesHow to insert and retrive multiple asp.net checkboxes values to MSSQl database as comma seperaed string 1,2,3,4,5 using vb.net ? and retrieve the inserted checkbox chekched in disabled form ..using vb.net url...I want this type of whole layout in vb.net means if user registered selected seats then then next the same page load for todays date the selected seats will be disabled
View 2 RepliesI have another puzzle to solve and I was hoping that I could get some pointers in the right direction. I have a comma delited text file and I want to write a program that will read the rows and write a report grouping the rows by a column.[code]...
View 3 RepliesI want to add the contents of a comma delimited text file(PracInfo.txt) into a Dictionary on Form_Load. The contents of the file are as follows:
wlvc,coadmin
mrmd,thadmin
ccoa,oaadmin
bfhl,bfadmin
trty,tradmin
nppp,npadmin
For example, I want the wlvc to be the key and the coadmin to be the corresponding value. The code I have so far goes as follows:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim sr As New StreamReader("C:Programming filesPracInfo.txt")
Dim openWith As New Dictionary(Of String, String)
Do While sr.Peek <> -1
strHold = sr.ReadLine()
' here I would like to use the String.Split method on strHold and then put that into the Dictionary using Dictionary.Add(Key,Value) but not sure how to do this????
Loop
End Sub
End Class