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asp:Image control in a DataList ItemDataBound event

I have " <asp:Image ID="imgEng" Visible=False . .> " in a DataList

I'm trying to reference it so I can set it's visible to True but can't.
This is not working, "Image" is a problem. in ItemDataBound event:

Dim imgEng As Image << not valid
imgEng = e.Item.Cells(3).FindControl("imgEng")
imgEng.Visible = True

Tried this but got the same problem:

Dim imgEngAs Image = CType(e.Item.Cells(3).FindControl("imgEng"), Image)

But controls like this work:

Dim lnkAdd As LinkButton
lnkAdd = e.Item.Cells(3).FindControl("lnkAdd")
lnkAdd.Visible = True

How is a asp:Image control referenced in a DataList?

b1xml2

Public Sub DataList1_ItemDataBound(ByVal sender As Object, ByVal e As DataListItemEventArgs)
      Select Case e.Item.ItemType
      Case ListItemType.Item, ListItemType.AlternatingItem
            Dim imgEng As Image = DirectCast(e.Item.FindControl("imgEng"),Image)
      End Select
End Sub

<asp:DataList Id="DataLust1" RunAt="Server" OnItemDataBound="DataList1_ItemDataBound">

</asp:DataList>

MikeMCSD

ASKER

Tried this but same problem:
Dim imgEng As Image = DirectCast(e.Item.Cells(3).FindControl("imgEng"), Image)

b1xml2

there's a slight difference:
Dim imgEng As Image = DirectCast(e.Item.FindControl("imgEng"),Image)

The CellCollection starts at 0. So the first column is e.Item.Cells(0) .. and so on and so forth. To avoid worrying about which cell the control is in, use e.Item.FindControl(..)

HTH

MikeMCSD

ASKER

This is the problem:
Dim imgEng As Image <<< it won't let me declare it . . look at it in VS.

ASKER CERTIFIED SOLUTION

b1xml2

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b1xml2

where System.Drawing and System.Web.UI.WebControls are referenced within the same class, there will be a clash with the class Image (both namespaces have their respective Image class)

In intellisense inside C#, the red error icon appears when you try to type Image. This apparently is not available in the VB.NET IDE... very strange

MikeMCSD

ASKER

very good, yes b1, it looks like that is the problem . . but why did they name the control
for asp:Image with namespace Image? To drive me crazy of course.

I came up with another idea/solution in the meantime that also worked:

<asp:Image ID="imgEng" Visible='<%# DataBinder.Eval(Container, "DataItem.Engraving")%>' . . . the field is a bit field.