ObjectDataSource has no data

[Dot Net Daddy]

Hello,

I have an objectDateSource. But sometime there might not be any data
for my application. So how can I know if the objectDataSource has no
data? I binded a dropdownlist to this objectDataSource and I want to
set the dropdownlist.visible = False, if there is no data.

Thank You,

 

[Guest]

Well! If you bind your dropdownlist to your ODS and its items count property
is zero, then can't you go ahead and set its visibility to false based on
that?
Peter

 

[Dot Net Daddy]

The problem is there for me.

First of all I am new to asp.net as you may have noticed. And secondly
there is not such a method like:

ObjectDataSource.Items.Count

that's why I'm stuck.

 

[Guest]

Yep. I didn't say you should be checking for an Items collection property on
your ObjectDataSource. I said to check it on the dropdownlist, which does
have an Items collection.
Peter

--
Co-founder, Eggheadcafe.com developer portal:
http://www.eggheadcafe.com
UnBlog:
http://petesbloggerama.blogspot.com

 

[Dot Net Daddy]

I had already tried what you said but it hadn't worked either. But now
I got why it didnt work.

Because the dropDownList is databinded, and it doesn't contain any info
on every Page_Load it always returned 0 for list.items.count..
my fault was writing that code in page_load function.

Now I changed it to:

Protected Sub DropDownList1_DataBound(ByVal sender As Object, ByVal
e As System.EventArgs) Handles DropDownList1.DataBound
If DropDownList1.Items.Count.Equals(0) Then
DropDownList1.Visible = False
End If
End Sub

and it works fine..

thank you anyway for your help..

 

[Guest]

Whatever "floats yer boat"! Works for me.
Peter

--
Co-founder, Eggheadcafe.com developer portal:
http://www.eggheadcafe.com
UnBlog:
http://petesbloggerama.blogspot.com