Bind expression syntax

The way around that, that I am using, is converting the
column to a
template column and then in the gridview_updating event set
the value
to your object property.

My object has the following structure:

The StoreGroup object contains a HoldingCompany object which
exposes two
properties, an ID and a Name:

StoreGroup.HoldingCompany.HoldingCompany_ID
StoreGroup.HoldingCompany.HoldingCompanyName


If you want to display the HoldingCompanyName in your
gridview you
first convert the column to a template column as follows:

<asp:TemplateField HeaderText="Holding
Company">
   <ItemTemplate>
      <asp:Label ID="Label1"
runat="server" Text='<%# Eval
("HoldingCompany.HoldingCompanyName") %>'
Width="300px"></asp:Label>
   </ItemTemplate>
   <EditItemTemplate>
      <asp:TextBox ID="StoreGroupTextBox"
runat="server" Text='<%# Eval
("HoldingCompany.HoldingCompanyName") %>'
Width="300px">
   </EditItemTemplate>
</asp:TemplateField>


and then in the code behind:
(
assuming my ObjectDataSource is called
StoreGroupObjectDataSource
and your gridview is called gvwStoreGroup
)

    protected void
StoreGroupObjectDataSource_Updating(object sender,
ObjectDataSourceMethodEventArgs e)
    {
        StoreGroup myStoreGroup =
(StoreGroup)e.InputParameters[0];
        TextBox myTempTextBox =
((TextBox)this.gvwStoreGroup.Rows
[this.gvwStoreGroup.EditIndex].FindControl("StoreGroup
TextBox"));

        myStoreGroup.HoldingCompany.HoldingCompanyName =
Server.HtmlEncode
(myTempTextBox.Text);
    }



This method is much more cumbersome that simply doing a Bind
("HoldingCompany.HoldingCompanyName")
but it is the only way around I found.


I hope this helps.

Regards,
Yago Alvarado

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