retrieving checkboxlist values from database - only selects one value!


I'm using a CheckBoxList server control and trying to select certain values which are retrieved from a database.  How ever, i'm only getting one checkbox 'checked' even when there are multiple values.


Public Sub getFacilities(ByVal queryString As String, ByVal connectionString As SqlConnection)
        Using connectionString

            Dim command As New SqlCommand(queryString, connectionString)
            Dim reader As SqlDataReader = command.ExecuteReader()
            While reader.Read()
                CType(FormView1.FindControl("facilityCheckBoxList"), CheckBoxList).SelectedValue = reader(0)
            End While
        End Using
    End Sub


 The single value which is selected is correct, and i have also run the SQL command seperatly which shows that there should be multiple values!



2/19/2007 12:57:34 PM 93655 articles. 6 followers. Follow

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This is happening because you r resetting selectedvalue everytime while running the loop, so in the end of the loop it gives u the selected value for the last value.

U have to check each item for the checkboxlist and find a match for the value from the sqldatareader, if matches then set that Checkboxlist item's selected property = true;

While reader.Read()


for (int i = 0; i < chk1.Items.Count;i++)


if (reader(0) == chk1.Items[i].Value)

chk1.Items[i].Selected =




Hope this will help.

2/19/2007 1:40:11 PM


Thats spot on, thanks for that - i've converted somthing similiar from above to VB if anyones interested:


Dim command As New SqlCommand(queryStringFac, strConn)
            Dim reader As SqlDataReader = command.ExecuteReader()
            Dim chk1 As CheckBoxList = CType(FormView1.FindControl("facilityCheckBoxList"), CheckBoxList)
            Dim num As Integer = (chk1.Items.Count) - 1

            While reader.Read()
                Dim i As Integer
                For i = 0 To num
                    If reader(0) = chk1.Items(i).Value Then
                        chk1.Items(i).Selected = True
                    End If

            End While
2/19/2007 2:37:33 PM

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