combobox prob

[shei786]

hi,
i want to know how i can populate my combobox using data directly from database (sql server ) and after how can i store the selectedindex (ie item selected by user) in another table. if u have any codes, post it here for me. i badly need help. HELP ME PLTZZZZZ!

[mar_zim]

hi,
i want to know how i can populate my combobox using data directly from database (sql server ) and after how can i store the selectedindex (ie item selected by user) in another table. if u have any codes, post it here for me. i badly need help. HELP ME PLTZZZZZ!

try this one.

'cn is a connection.
'in your form load event
'declare a datatable
 
Dim dt As New DataTable()
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        dt.Columns.Add(New DataColumn("id"))
    End Sub
 
'it loads the first column of the table authors to the combobox
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Try
            cn.Open()
            Dim cm As New SqlCommand("select * from authors", cn)
            Dim dr As SqlDataReader = cm.ExecuteReader
            While dr.Read
                Me.ComboBox1.Items.Add(dr(0).ToString)
            End While
            dr.Close()
            cn.Close()
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub
 
'in your combobox selectedindex change event
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
        Dim dr As DataRow = dt.NewRow
        dr(0) = ComboBox1.SelectedItem.ToString
        dt.Rows.Add(dr)
    End Sub