CSV items to multiline textbox in VB.NET

I am using Visual Studio 2008. I am trying to take a line of comma separated items and send them to a multiline textbox.  For example "1,2,3,4" would appear in the textbox as:


I would like to do this in a For Each or For Next statement.
Who is Participating?
RyanAndresConnect With a Mentor Commented:
This code allows you to manipulate each line. If this is not what you're looking for please provide a sample input and expected output.

Dim str As String = "1,2,3,4"
Dim lines As String() = str.Split(","c)
Dim output As New StringBuilder()
For Each line As String In lines
txtFirstName.Text = output.ToString()

Open in new window

Walter RitzelSenior Software EngineerCommented:
If you dont have the comma as a valid char for each value, you can try something like this:

Dim formatedValue as String

formatedValue = SourceCSVLine.Replace(",",CHR(13))

textBox.Text = formatedValue

Sorry for bad VB syntax... I'm C# guy....
The following code assigns each delimited part as a new line
string line = "1,2,3,4";
textBox.Text = line.Replace(',', '\n');

Open in new window

Cloud Class® Course: Microsoft Azure 2017

Azure has a changed a lot since it was originally introduce by adding new services and features. Do you know everything you need to about Azure? This course will teach you about the Azure App Service, monitoring and application insights, DevOps, and Team Services.

Someone beat me and I forgot to convert to VB:
Dim line As String = "1,2,3,4"
textBox.Text = line.Replace(","c, ControlChars.Lf)

Open in new window

schwientekdAuthor Commented:
I modified your lines slightly by replacing CHR(13) with vbCrLf and that did accomplish the simple question I asked.  However I was looking for a way to do this with a For statement.  The reason is that the thing I am trying to accomplish is much more complex but I was trying to start small.  The comma separated items I am using are actually going to be codes that are stored in a table.  Each code will have another column with a description and the descriptions are what need to appear in my textbox. Sorry for the long explanation which I don't expect to be answered in this post but I just wanted to explain my reason for wanting to use a For statement.
Walter RitzelSenior Software EngineerCommented:
In this case, I think the last code from RyanAndres is what you are looking for.
schwientekdAuthor Commented:
I think that this will get me started.  Thanks.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.