mconti41
asked on
Maintain Header Item in Drop Down List Box
When I do a data source request my default Item --Please chose Coverage Group-- disappears. All db retrieved items are in DDLB. GHow can I maintain default item above.
Last Comment
abel
You will have to add it manually after the data binding of the control.
ASKER
How would I make sure it was first in the list and what event should I use?
So, suppose you are talking of a listbox here, named myListbox, you could do the following, which adds the item and selects it:
myListbox.Items.Add(New ListItem("--Please chose Coverage Group--", ""))
myListbox.SelectedValue = ""
ASKER
I appreciate your response but what event would be best...
My apologies for the post above: it was posted before I saw your new comment....
> How would I make sure it was first in the list and what event should I use?
You shouldn't use any event, you can simply put it after your DataBind() statement, like this:
> How would I make sure it was first in the list and what event should I use?
You shouldn't use any event, you can simply put it after your DataBind() statement, like this:
myListbox.Items.Clear()
myListbox.Items.Add(New ListItem("<geen>", "none"))
myListbox.AppendDataBoundItems = True
myListbox.DataSource = mydatasource
myListbox.DataBind()
You can try something like this:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
YourDropDown.Items.Insert(
End If
End Sub
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
YourDropDown.Items.Insert(
End If
End Sub
The property "AppendDataBoundItems" makes sure that the original content is not lost and stays on top (so you do not have to reorganize it). The line with "geen" (sorry, that's Dutch, forgot to replace it with your sentence above) is the extra line which should be on top.
I am not sure whether you use the DataBind statement or not, but if you do, this is the way to go.
I am not sure whether you use the DataBind statement or not, but if you do, this is the way to go.
ASKER
jpaulino thanks for staying with this:
Here is my current .aspx code:
I used the not post back code you suggested but it still did not insert the header row.
Here is my current .aspx code:
I used the not post back code you suggested but it still did not insert the header row.
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ataSourceID >> DataSourceID
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