| Autor | Zpráva | ||
|---|---|---|---|
| BLACK_ANGEL1 Profil |
zdravim
skusam spravit stranku kde mam dropdownlist v ktorom su data z DB a button tlacitko pridava dalsie dropdowlist problem je ked selectnem na prvom dropdownliste nieco po pridani dalsieho ddl zostane selectnute ale ak selectnem daco na 2ddl tak po pridani dalsieho tretieho ddl uz neostava selectnute to co bolo na druhom ddl asi treba daco cez post back ale to neviem ako funguje momentalne tam mam toto Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
Dim lstddl = New List(Of DropDownList)()
Session("ddl") = lstddl
End If
End Sub Protected Sub Btnadd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnadd.Click
Dim lstddl = New List(Of DropDownList)()
Dim random As New Random()
Dim mybtn As New DropDownList()
mybtn.DataSource = Sqlcomponent2
mybtn.DataTextField = "component_name"
mybtn.DataValueField = "id_component"
mybtn.DataBind()
Dim btnlist = TryCast(Session("ddl"), List(Of DropDownList))
If btnlist IsNot Nothing Then
For Each DropDownList In btnlist
PlaceHolder1.Controls.Add(DropDownList)
lstddl.Add(DropDownList)
Next
End If
PlaceHolder1.Controls.Add(mybtn)
lstddl.Add(mybtn)
Session("ddl") = lstddl
End Sub |
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Časová prodleva: 12 let
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