Convert CSV to a single column in datagridview VB

Question

0.00/5 (No votes)

See more:

as the title suggest i need to insert the CSV into a single column in DataTable.

CSV:
109-56-987-546-45-393
32-41-53-627-234-865-675
546-321-567-908-354-27-35

the datatable should be:
109
56
987
546
45
393
and so on..
this is my code.

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

If OpenFileDialog1.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
Dim sr As New IO.StreamReader(OpenFileDialog1.FileName)
Dim dt As New DataTable

dt.Columns.AddRange({New DataColumn(newline(0)),
New DataColumn(newline(1))})

While (Not sr.EndOfStream)
newline = sr.ReadLine.Split("-"c)
Dim newrow As DataRow = dt.NewRow
newrow.ItemArray = {newline(0), newline(1)}

dt.Rows.Add(newrow)
End While
DataGridView1.DataSource = dt
End If

What I have tried:

i tried editing the " dt.Columns.AddRange({New DataColumn(newline(0))}) " thinking it has something to do with newline (1) but no go.

Posted 23-Nov-20 0:38am

Member 12660183

Updated 23-Nov-20 0:59am

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2020-11-23T00:59:00

First off, that's not CSV - it stands for "Comma Separated Values" and strictly, that isn't separated by commas, it uses hyphens instead.
And the other problem is that CSV is organised into rows of columns, and you appear rto not be doing that at all.

Instead, I'd just read it as text, and use Split to "break it up". You can then use the result to populate your DGV directly:

VB

Dim data As String = File.ReadAllText("D:\Test Data\AAAData.csv")
Dim parts As String() = data.Split("-"c, vbLf)
Dim viewable = parts.[Select](Function(p) New With {Key.Value = p}).ToList()
dataGridView1.DataSource = viewable