ObjectDataSource UpdateMethod question

[Jeronimo Bertran]

I have a FormView that shows details of a specific record on a table. The
SelecMethod returns a DataSet that includes all the fields from my Event
table and other read-only fields from linked tables. My FormView has
controls that are bound to the fiuelds on the dataset table. I am now
changing the FormView's Default Mode to Edit but I am having problems with
the related fields.

My ObjectDataSource is defined as:

<asp:ObjectDataSource ID="ObjectDataSourceEventDetails"
runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="SelectEventDetails" TypeName="EventData"
DataObjectTypeName="System.Data.DataSet" UpdateMethod="UpdateEventDetails">
<SelectParameters>
<asp:ControlParameter ControlID="GridViewEvents"
Name="eventID" PropertyName="SelectedValue"
Type="Int64" />
</SelectParameters>
</asp:ObjectDataSource>

The EventData.SelecEventDetails performs a join with related tables and
returns a single table in a dataset with both the Event fields and the
related fields.

The EventData.UpdateEventDetails funcion takes as parameters the
original_EventID and only the editable fields that belong to the Event
table.

public void UpdateEventDetails(long original_EventID, byte SendState,
string EntryNotes)

I added a button to save changes and when the button is pressed I called:
FormView1.UpdateItem(true);

When UpdateItem is called I receive the following exception:

Could not find a property named 'ImageIndex' on the type specified by the
DataObjectTypeName property in ObjectDataSource
'ObjectDataSourceEventDetails'.

ImageIndex is a field found on a related table which is not updated by
UpdateEventDetails.

I am not sure if I should limit the SelectMethod to return the table and
do the databinding for the read only fields a different way.

Thanks

Jeronimo Bertran

[Walter Wang [MSFT]]

Hi Jeronimo,

Thank you for your post!

ObjectDataSource.DataObjectTypeName is used to get or set the name of a
class that the ObjectDataSource control uses for a parameter in an update,
insert, or delete data operation, instead of passing individual values from
the data-bound control.

Since your UpdateMethod of ObjectDataSource is passing individual values,
you should remove 'DataObjectTypeName="System.Data.DataSet"' part from your
ObjectDataSource declaration.

For more information, see MSDN documentation on this property:
http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.objectdat
asource.dataobjecttypename(d=ide).aspx

Hope this helps. If anything is unclear, please feel free to post here.

Regards,
Walter Wang
Microsoft Online Community Support

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[Jeronimo Bertran]

Thanks Walter

[Walter Wang [MSFT]]

You are welcome.

Have a nice day!