How do I get the dataset into the datagridview VB.NET

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I'm trying to fill a datagridview with data.

the commented lines are the things i've tried but i don't get results...
can you help me (i'm a beginner : first timer doing this type of coding)

What I have tried:

my current code is this: 
<pre>Imports System.Data
Imports System.Data.OleDb
Public Class Dossiers
    Private DossierDataset As DataSet = New DataSet()
    Private Sub Dossiers_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim connString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=F:\GoogleDrive\EINDWERK VBNET\PatientenDatabase.accdb"
        Using con As OleDbConnection = New OleDbConnection(connString)
            con.Open()
            Dim cmd As OleDbCommand = New OleDbCommand
            cmd.Connection = con
            cmd.CommandText = "SELECT          tbl_Dossiers.Dos_ID, tbl_Relaties.Rel_Naam, tbl_Relaties.Rel_Voornaam, tbl_Onderzoekstypes.OZ_TypeOnderzoek, tbl_Diagnoses.Diag_Type
                               FROM            ((((tbl_Dossiers 
                               LEFT OUTER JOIN tbl_DossRelatie ON tbl_Dossiers.Dos_ID = tbl_DossRelatie.DR_DossID) 
                               LEFT OUTER JOIN tbl_Relaties ON tbl_DossRelatie.DR_RelID = tbl_Relaties.Rel_ID) 
                               LEFT OUTER JOIN tbl_OnderzoeksTypes ON tbl_Dossiers.OZ_ID = tbl_OnderzoeksTypes.OZ_ID) 
                               LEFT OUTER JOIN tbl_Diagnoses ON tbl_Dossiers.Diag_ID = tbl_Diagnoses.Diag_ID)
                               ORDER BY        tbl_Dossiers.Dos_ID"
            Dim adpt As OleDbDataAdapter = New OleDbDataAdapter(cmd)
            adpt.Fill(DossierDataset)
            dgvDossiers.DataSource = DossierDataset.Tables

        End Using
        'dgvDossiers.DataSource = Me.DossierDataset
        'dgvDossiers.AutoGenerateColumns = True
        'dgvDossiers.DataSource = DossierDataset
        'dgvDossiers.DataMember = "tbl_Dossier"
    End Sub
    'Private Sub BindData()
    'With dgvDossiers
    '.AutoGenerateColumns = True
    '.DataSource = DossierDataset
    '.DataMember = "Dos_ID"
    'End With
    'End Sub

Posted 3-Nov-20 22:34pm

Izzy Decorte

Updated 4-Nov-20 5:28am

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2 solutions

Solution 1

Try this:

dgvDossiers.DataSource = DossierDataset.Tables(0)

Posted 3-Nov-20 23:56pm

RickZeeland

Comments

Izzy Decorte 4-Nov-20 6:08am

Hi RickZeeland. I added the (0) as described but I still won't get any data in the list. Thanks for helping out!

RickZeeland 4-Nov-20 6:48am

Bummer, maybe you can try setting a breakpoint and hover over DossierDataset with the mouse to see if it contains anything, good luck!

Izzy Decorte 4-Nov-20 7:22am

It just says dgvDossiers [System.windows.forms.datagridview]
if i open the arrow for more info, i get the datagridview info like "allowusertoaddrows" = true etc etc

RickZeeland 4-Nov-20 8:04am

And can you see anything in DossierDataset ?
If not your connectionstring could be wrong for instance.

Izzy Decorte 4-Nov-20 10:01am

If i check the query i get actual feedback in de query designer, the connectionstring is the same one i use everywhere (copy pasted)

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Izzy Decorte · Accepted Answer · 2020-11-04T05:29:00

found it!
basically i made too much effort in the datagridview itself in the form.
Because i made it look like the way i wanted it to, i changed data that was critical to the loading
correct code:

Private Sub Dossiers_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim str As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=F:\GoogleDrive\EINDWERK VBNET\PatientenDatabase.accdb"
        Dim con As New OleDbConnection(str)
        Dim com As String = "Select          tbl_Dossiers.Dos_ID, tbl_Relaties.Rel_Naam, tbl_Relaties.Rel_Voornaam, tbl_Onderzoekstypes.OZ_TypeOnderzoek, tbl_Diagnoses.Diag_Type
                               FROM((((tbl_Dossiers 
                               Left OUTER JOIN tbl_DossRelatie ON tbl_Dossiers.Dos_ID = tbl_DossRelatie.DR_DossID) 
                               Left OUTER JOIN tbl_Relaties ON tbl_DossRelatie.DR_RelID = tbl_Relaties.Rel_ID) 
                               Left OUTER JOIN tbl_OnderzoeksTypes ON tbl_Dossiers.OZ_ID = tbl_OnderzoeksTypes.OZ_ID) 
                               Left OUTER JOIN tbl_Diagnoses ON tbl_Dossiers.Diag_ID = tbl_Diagnoses.Diag_ID)
                               ORDER BY        tbl_Dossiers.Dos_ID"
        Dim adpt As New OleDbDataAdapter(com, con)
        Dim dossierset As New DataSet()
        adpt.Fill(dossierset, "Dos_ID")
        dgvDossiers.DataSource = dossierset.Tables(0)
        dgvDossiers.Show()

    End Sub

thanks for helping out!