Discuss "No Default Member Found for type" in the .Net Development forum.

richyrich · #1 May 29th, 2008, 12:31 PM

I'm using a class to create a list of items to show in a repeater. I'm getting an error saying "No default member found for type <Type>" when I try to use a DataItem in OnItemDataBound event.
BOL

Code:

    Public Class PolicyCommList
        Inherits List(Of PolicyCommissionBOL)
        Public Sub New()
        End Sub
        Private _page_error As String = String.Empty
        Public Property page_error() As String
            Get
                Return _page_error
            End Get
            Set(ByVal value As String)
                _page_error = value
            End Set
        End Property
    End Class
 
    Public Class PolicyCommissionBOL
 
        Private _introducer As String = String.Empty
        Public Property introducer() As String
            Get
                Return _introducer
            End Get
            Set(ByVal value As String)
                _introducer = value
            End Set
        End Property
 
     End Class

My Repeater:-

Code:

<asp:repeater ID="dlst_comm" runat="server" OnItemDataBound="dlst_comm_onitemdatabound">

Binding the repeater

Code:

            Dim commlist As PolicyCommList = CommBLL.GetCommList(PolicyDetails.policyref)
            If Not IsNothing(commlist) Then
                dlst_comm.DataSource = commlist
                dlst_comm.DataBind()
            Else
                lbl_nocomm.Visible = True
            End If

OnItemDataBound

Code:

    Protected Sub dlst_comm_onitemdatabound(ByVal s As Object, ByVal e As RepeaterItemEventArgs)
        If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
            Dim img_intro As Image = e.Item.FindControl("img_introducer")
            If Not String.IsNullOrEmpty(e.Item.DataItem("introducer")) Then img_intro.Visible = True
        End If
    End Sub

When I load the page I get this error:-
System.MissingMemberException: No default member found for type 'PolicyCommissionBOL'.
on line:-

Code:

            If Not String.IsNullOrEmpty(e.Item.DataItem("introducer")) Then img_intro.Visible = True

I can't see why there wouldn't be a value for introducer. Any ideas how I can fix this error?

Thanks

Wolffy · #2 May 29th, 2008, 01:09 PM

RR
From what I've found, the error seem to be unique to VB.NET and occurs during late binding events -- like databinding in a Repeater. I'm thinking the problem is in you ItemTemplate control and that the Repeater has no idea what property to bind to. Take a look at this MSDN article for info on this error; http://msdn.microsoft.com/en-us/library/zzh9ha57(VS.80).aspx.

Also, if you could post your ItemTempate code, we should get this sorted.

jmurrayhead · #3 May 29th, 2008, 01:16 PM

Code:

Protected Sub dlst_comm_onitemdatabound(ByVal s As Object, ByVal e As RepeaterItemEventArgs)
    If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType = ListItemType.AlternatingItem Then
        Dim img_intro As Image = e.Item.FindControl("img_introducer")
        Dim myIntroducer As PolicyCommissionBOL = e.Item.DataItem
        If Not String.IsNullOrEmpty(myIntroducer.introducer) Then
            img_intro.Visible = True
        End If
    End If
End Sub

Wolffy · #4 May 29th, 2008, 01:21 PM

Shoot - I didn't even read the last code block -- that's what I get for doing lunch as the same time as posting.

richyrich · #5 May 29th, 2008, 01:27 PM

Thanks J....Worked like a charm...

Thanks Wolffy for your reply...

I could do with something to eat myself!!

Wolffy · #6 May 29th, 2008, 01:33 PM

Yeah, what I shoulda realized is that your original code was trying to index your object like you would a datatable. Since there was no specific method for handing the index, it was looking for the default property.

I least I think that's right -- I don't know -- unsure of my name -- where am I?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Webform Default Button	Devwhiz	.Net Development	9	May 15th, 2008 01:15 PM
Computer \\COMPUTERNAME cannot be managed. The network path was not found.	jmurrayhead	Microsoft Windows	0	April 25th, 2008 06:43 PM

The Following User Says Thank You to Wolffy For This Useful Post:
richyrich (May 29th, 2008)

The Following User Says Thank You to jmurrayhead For This Useful Post:
richyrich (May 29th, 2008)

Discuss "No Default Member Found for type" in the .Net Development forum.

.Net Development - Learn about the Microsoft.Net framework and how to create powerful web-based (ASP.net) and client-based (Windows Forms) applications utilizing various languages such as C#, VB.Net, J# and others.