scrollbar of dropdownlist doesn't work & how to bind dropdownlist to database

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hello.

i have designed a webform by ASP.net 4 & using Sqlserver 2008r2 , in my form there is a Dropdownlist that includes names of countries .my qeustions:

1- for the better performance i don't whether is this good to add items (name of countries ) in ASp.net (dropdownlist item collection) or to

bind them to my database , table of Country?

2- when i put dropdownlist in my form and run the solution there is no scroll bar for dropdownlist ? how can i activate it?

if i use HTML Select option , i don't know how to bind it to database..

Posted 13-Jun-12 21:02pm

mohammad ehsan

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Agustee · Answer 1 · 2012-06-13T21:37:00

//To bind the data to dropdownlist in html

XML

<select name="" id="" style="WIDTH: 200px" class="clsListBox">
                        <% call FillCombo() %>
                    </select>

VB

Sub FillCombo()
SqlCon.open()
Dim sqlcmd As SqlCommand = New SqlCommand("SP Name", sqlcon)
        sqlcmd.CommandType = CommandType.StoredProcedure

        Dim da As SqlDataAdapter = New SqlDataAdapter(sqlcmd)

        Dim dr As SqlDataReader

        dr = sqlcmd.ExecuteReader()
        Dim intComboID As Integer = 0
               While dr.Read()

            Response.Write("<option value='" & intComboID & "'dr.Item("Name") & "</option>")
                       intComboID = intComboID + 1

        End While
         dr.Close()
        dr = Nothing
        sqlcon.Close()
End Sub