Infralution Support

[jaherbert]

When I apply a univeralEditBox editor to a LookupField, I get a list, so I can select a different lookup value.

I actually want to be able to change the text of a LookupField (i.e., modify the lookup table itself).

Can I configure an editor or handle a "SetData" event to do this?

Thanks.

[Infralution]

There are a few different ways to achieve this. When you set a field to be a lookup field it uses a special TypeConverter and UIEditor for that cell in Virtual Tree. You could create your own TypeConverter (which converts the data to a string) and editor (which allows selection) and set these in the GetCellData event handler.

Alternatively (and possibly easier) is to create your own editor derived from a VirtualDropDownList control and override the GetTextForItem method to return the text you want for the given item.
_________________
Infralution Support

[jaherbert]

Thanks. Actually, I don't need the "lookup" functionality. That is, I don't need to be able to select a different value from the list. There's a 1:1 relation between the ID field and the lookup text. Prior to wanting to edit it in place, I was using the lookup as a mere translator.

So, it looks to me like I can use a UniversalEditBox and GetCellData (to do the lookup and set cellData.Value) and SetCellValue (to store e.NewValue in DataSet).

Two problems:

1. It doesn't get the sort column right.
2. Change notifications don't seem to work. I change the name on via another control and I don't see it on the VT. I imagine it's subscribed to changes on the id, not the name.

Both of these things worked with a lookup field.

If you're recommending using a custom derived an editor, do you have any code samples for how to hook it up properly.

Thanks again.

[Infralution]

I think I understand what you are saying. You don't want to select values from a list of possible values - merely display the current value (from a linked table) and possibly allow the user to change the text for the current value in the linked table. Is that right?

For this you can use a simple TextBox as the editor and and handle the GetCellData and SetCellValue events as you are doing.

[jaherbert]

Thanks. I understand about notifications. Re: sorting, I guess other controls which offer this kind of feature, manage the sort within the control. Is this something you intend to add?

[Infralution]

[jaherbert]

Right I can handle that in GetChilden. I was thinking about clicking the column to sort and it sorting only those rows for which it has already built an internal representation.

[Infralution]