ASP.NET's new ListView Control: Custom Grouping?

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benji - 02 Jan 2008 21:21 GMT

Hi,

I'm investigating the new listview control. The grouping functionality is
very cool, but I don't want to simply group every x elements; i'd like to do
custom grouping (I want to say, start a new group if this record contains a
new value for field y as compared to the previous record). What I envision is
handling an event and issuing a command to the control after doing my own
check, saying "ok, start a new group." Is this possible? If not by handling
an event, perhaps via a derrived control? Any thoughts?

Best

-Ben

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Nicholas Paldino [.NET/C# MVP] - 02 Jan 2008 21:40 GMT

Ben,

Unfortunately, no, it doesn't seem like there is a way to do this.
Which is a shame, really, as I would think it would have been easy to expose
an interface which would be queried as to when a group changes.

Signature

- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard.caspershouse.com

> Hi,
>
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> -Ben

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benji - 03 Jan 2008 16:16 GMT

Hi Nicholas,

Thanks for the reply. That is disapointing. I'd imagine that the code for
the control has something like:

if (currentrow % GroupItemCount == 0)
MarkNewGroup();

I hope someone is able to write a derrived class that modifies this. I tried
to open the assembly system.web.extensions.dll in ildasm but was having
difficulty opening GAC assemblies in the tool.

Thanks for the prompt answer, Nicholas.

-Ben

> Ben,
>
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> >
> > -Ben

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ASP.NET's new ListView Control: Custom Grouping?

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