PlaceHolder et FindControl
J'ai un probleme "NullPointerException" quand j'essay de trouver un control dans mon placeHolder. Le PlaceHolder est dans une page aspx, contenu dans un Master, mais les controles ne sont pas dans le Master
Voila le code:
default.aspx
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<tr>
<td><asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder></td>
</tr> |
CodeBehind
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Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
' Load Team Categories in DropDownList
equipecat.Controls.Add(EquipeHelpers.getCategories(ViewData("Category")))
' Load Team Trainers (many-to-many)
For Each entraineur As DAL.Horaire_dev.EntraineursEquipe In ViewData("Entraineurs")
' Name TextBox
Dim name As New TextBox
name.ID = "EntName" & entraineur.Id
name.Text = entraineur.HoEntraineur.Nom
' Delete Label
Dim del As New Label
del.ID = "EntDel" & entraineur.Id
del.Text = "Supprimer"
' Add Controls
PlaceHolder1.Controls.Add(name)
PlaceHolder1.Controls.Add(EquipeHelpers.getEntTypes(entraineur.Entraineur)) ' Type DropDownList
PlaceHolder1.Controls.Add(New LiteralControl("<small><a href=/Equipes/EntDelete/" & entraineur.Id & ">"))
PlaceHolder1.Controls.Add(del)
PlaceHolder1.Controls.Add(New LiteralControl(" </a></small><br />"))
Next
End If
End Sub
Protected Sub btnsavee_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnsavee.Click
For Each entraineur As DAL.Horaire_dev.EntraineursEquipe In ViewData("Entraineurs")
Try
Dim textBox As New TextBox
textBox = PlaceHolder1.FindControl("EntDel" & entraineur.Id)
MsgBox(textBox.Text)
Catch ex As Exception
MsgBox(ex.ToString)
End Try
Next
Response.Redirect("/Equipes/Save/" & ViewData("id"))
End Sub |
Merci de votre aide!
