gridview databinding to object data source

6 Oct 2006 10:28 AM

Allan Ebdrup

I have a gridview that I bind to an object data source, the objects in the
object data source have a property called ContactMethods that in turn has a
property called Telephone, now I would like to show the Telephone property
in the grid, but when I select columns I cant navigat into the objects I can
only show the properties of the objects in the object data source, not their
properties' properties'
How do I show Object.ContactMethods.Telephone in the gridview?

Kind Regards,
Allan Ebdrup

7 Oct 2006 2:49 PM

Gaurav Vaish (www.EdujiniOnline.com)

> properties' properties'
> How do I show Object.ContactMethods.Telephone in the gridview?

Alas! That's the way GridView works. I don't think one can specify the
'NestingLevel' to dig deep unless one reaches to 'primitive types' (string,
int etc).

You may want to handle the event PreRender or may be RowCreated. Note that
GridViewRow is nothing but a simple TableRow.

Check if RowTyper is DataGridRowType.DataRow, if so get the Cells[index] and
alter the content of the corresponding Cell.

Alas! I think that's the only/simple way to do it.

--
Happy Hacking,
Gaurav Vaish | www.mastergaurav.com
www.edujinionline.com
http://eduzine.edujinionline.com
-----------------------------------------

9 Oct 2006 2:07 AM

Walter Wang [MSFT]

Hi Allan,

You can use TemplateField and use Eval or Bind to bind to sub properties:

        <asp:GridView ID="GridView1" runat="server"
DataSourceID="ObjectDataSource1">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:Label ID="lblTelphone" runat="server"
Text='<%# Eval("ContactMethods.Telephone") %>'></asp:Label>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:Label ID="txtTelphone" runat="server"
Text='<%# Bind("ContactMethods.Telephone") %>'></asp:Label>
                    </EditItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

#Data-Binding Expression Syntax
http://msdn2.microsoft.com/en-us/library/ms178366.aspx

Sincerely,
Walter Wang (waw***@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

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