Populating dropdown list from database (need help with sql - where to put it)

[liunx]

I have a dropdown list which is populated from the database. The second should then be populated with items from the database according to what was selected in the first. How do I say to only display the items if they have the category selected in the first box???

PS I am only using one table.

Thanks loadsProblem solved, I've noticed that loasds of people have the same problem so here is the code for the SelectedIndexChanged event:

Private Sub DropDownList1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DropDownList1.SelectedIndexChanged

Dim myconnection As SqlConnection

Dim mydata As SqlDataAdapter

Dim mydata7 As SqlDataAdapter

Dim ds7 As DataSet

myconnection = New SqlConnection("workstation id=****;packet size=4096;integrated security=SSPI;data source=""****\*" & _
"CGA"";persist security info=False;initial catalog=table")


mydata7 = New SqlDataAdapter("Select * from table ", myconnection)

ds7 = New DataSet



mydata7.Fill(ds7, "table")



Dim dav1 As New DataView(ds7.Tables("table"))

Dim strFilter As String

strFilter = "Category='" & DropDownList1.SelectedValue & "'".ToString

dav1.RowFilter = strFilter



DropDownList3.DataSource = dav1
DropDownList3.DataTextField = ds7.Tables(0).Columns("Question").ColumnName.ToString()

DropDownList3.DataValueField = ds7.Tables(0).Columns("Question").ColumnName.ToString()

DropDownList3.DataBind()

End Sub

Hope this helps anyone in the same situation!