VB2008/MS Access problems

[Montravont]

Greetings,

I have a program setup for which I would like to pull specific data from an Access database I have created. I know the connection to the database is functioning as I can pull mass data to populate a list box. Where I am having trouble is this. I would like to select a name from said list box and have the database return only information based on the name selected. Once I pull this information I would like to then place each item from this data into it's relevant place on the form. I'd rather not do this using a datagrid on the form. This is what I have currently.

*Note, the names being displayed in the list box is a direct match to the primary keys of each row

Private Sub OK_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK_Button.Click
        Dim selectedchar As String = characterlst.SelectedItem
        Dim dt As New DataTable
 
        con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = C:\Documents and Settings\Tech\My Documents\4e.mdb;"
        con.Open()
        sql = "SELECT * FROM details WHERE [Name]=" & selectedchar
        da = New OleDb.OleDbDataAdapter(sql, con)
        da.Fill(ds, "opening")
        Try
            Form1.Nametxt.Text = ds.Tables("opening").Rows(0).Item(0)
        Catch ex As Exception
            MessageBox.Show(ex.Message & " - " & ex.Source)
        End Try
 
        con.Close()
 
        Me.DialogResult = System.Windows.Forms.DialogResult.OK
        Me.Close()
    End Sub
 

When I run this code it gives me an error saying
"no value given for one or more required parameters vb access"

If I change the select statement to read

"SELECT * FROM details WHERE Primary Key =" & selectedchar
it throws me an error saying the syntax is incorrect

In both instances the error is thrown at line 8.

Any help would be much appreciated.

[debasisdas]

you need to select an item from characterlst before going for the clock event of the button

[Montravont]

Meant to update this actually. The problem was this.

I was using

characterlst.selecteditem

when I should have been using

characterlst.text

.selecteditem was returning and integer value for the list location of the selected object instead of the actual text of the selection.

combine that with the fact that for the query to function properly it needed to be done as thus

"Select * FROM details Where name=" & "'" & selectedchar & "'"

the proper/working code is as follows

Private Sub OK_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK_Button.Click
        Dim selectedchar As String = characterlst.Text
        con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = C:\Documents and Settings\Tech\My Documents\4e.mdb;"
        con.Open()
        sql = "SELECT * FROM details WHERE name='" & selectedchar & "'"
        da = New OleDb.OleDbDataAdapter(sql, con)
        da.Fill(ds, "opening")
        Try
            Form1.Nametxt.Text = ds.Tables("opening").Rows(0).Item(0)
            Form1.Racecmb.SelectedItem = ds.Tables("opening").Rows(0).Item(1)
        Catch ex As Exception
            MessageBox.Show(ex.Message & " - " & ex.Source)
        End Try
 
        con.Close()
        Form1.Enabled = True
        Me.DialogResult = System.Windows.Forms.DialogResult.OK
        Me.Close()
    End Sub