asked on

LISTVIEW nightmare with VB2005

Experts,

I am in desperate need of your assistance. I have pulled just about all of my hair out trying to get this listview to work. My project goal is to fill the listview from a database and then fill a textbox with the checked value of the listview. Below is my code:

Private Sub TESTING_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim conn2 As New System.Data.SqlClient.SqlConnection("Persist Security Info=True;Server=127.0.0.1;Database=Reporting;uid=sa;network=dbmssocn;password=******")
Dim da2 As New System.Data.SqlClient.SqlDataAdapter("Select * from tblPeople", conn2)
Dim ds2 As New System.Data.DataSet
Dim cmd As New System.Data.SqlClient.SqlCommand("SELECT * from tbldrug where arn='" & OffenseIncidentEdit.AgencyReportNumber.Text & "' and Incident_ID='" & OffenseIncidentEdit.Incident_ID.Text & "' and deleted='0' order by dateentered", conn2)

Try
conn2.Open()
Dim myReader As SqlDataReader = cmd.ExecuteReader()

Do While myReader.Read()

Dim lvi As New ListViewItem(myReader.Item("Activity").ToString) ' This works as far as populating the listview
lvi.SubItems.Add(myReader.Item("Type").ToString()) ' This works as far as populating the listview
lvi.SubItems.Add(myReader.Item("Description").ToString()) ' This works as far as populating the listview
lvi.SubItems.Add(myReader.Item("drug_id").ToString()) ' This works as far as populating the listview (I need this value to populate textbox1 when the selected item is clicked)
ListView1.Items.Add(lvi)

Loop

myReader.Close()

Catch ex As Exception
MessageBox.Show(ex.Message)
Finally

End Try
conn2.Close()

End Sub

My goal is to on click, fill textbox1.text with the selected value "DRUG_ID"

Please help

NCSO

ASKER

AM I missing the SelectedListViewItemCollection Class? I am at a lose!

dancebert

You will probably get better answers if you post this question in the VB.NET area.

Ravi Singh

Hi, you'll need to handle the "SelectedIndexChanged" event for the ListView control. Do this by selecting the ListView in design view, in the properties pane select the icon which has a lightning bolt graphic, double click the event named SelectedIndexChanged. This should take you into the code editor and should automatically generate the event handling procedure. In the end you should have something like:

Private Sub ListView1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListView1.SelectedIndexChanged

Me.TextBox1.Text = Me.ListView1.FocusedItem.SubItems(3).Text
End Sub

The literal value 3 is the column index...

Hope this helps!

NCSO

ASKER

Zephyr,

When I click the checkbox, nothing happens.

NCSO

ASKER

if I put it "on leave" or "item checked" it show the first indexed return and no other

NCSO

ASKER

it is as if the focused item is always the first return

ASKER CERTIFIED SOLUTION

Ravi Singh

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NCSO

ASKER

I changed the listview to full row select and it now works but I get the following error when I select a different row:

Object reference not set to an instance of an object.

NCSO

ASKER

THANK YOU VERRRRRY MUCH!