2 Webgrids Master Details | Infragistics Forums

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2 Webgrids Master Details

Infragistics User posted over 16 years ago

I anticipate that I have over looked the obvious, but this one has me stumped. The scenario is this:

A web page with two grids, each being fed by its own SQLdatasource control. One Grid is acting like a master, the other the detail (note: because of the number of columns it is easier/better from an user interface point of view to use the two grids rather than bind a hierarchical data set to one grid).
The goal is that when the user selcts a row in Grid Parent, the key of that selected row is pased to the data source feeding grid detail and will display the associated detail records.
All is working correctly EXCEPT I keep losing the formating in the child grid. The formating is setup in the InitializeLayout event, and when we first come into the page all looks good. However when you change rows (which changes the data fed to this child grid) the formating is lost.
Running Debug it appears that though the layout in the child grid is being reset, I am never going back through the InitializeLayout for the child grid.

Any Help Greatly Appreciated.

Neil

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[Infragistics] Vince McDonald posted over 16 years ago in reply to Infragistics User

1. Does the behavior change if you turn off the AJAX functionality of both grids? This isn't meant as a suggestion of a workaround, but to help determine whether the AJAX functionality is part of the issue or not.

2. In what event are you setting the invisible label, and is this on the client or on the server? What are you doing to go back to the server to request new rows for the child grid?

This is likely going to require some in-depth research, likely beyond what we can provide over the forums. I strongly suggest you submit a support request and include a sample project that we can run and debug that demonstrates what you're doing. Not only will such a sample answer many of the questions I've asked so far (including the ones above), it'll give us something we can investigate directly. We may also be able to suggest alternate approaches to get similar results, once we clearly understand what you're doing.
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Infragistics User posted over 16 years ago in reply to [Infragistics] Vince McDonald
Nope, I am using neither nor WebAsyncRefreshPanel nor an UpdatePanel. The both grids themselve though do have ajax enabled.

From the row change event handler of the parent grid, the parent primary key is stored in an invisible label on the main page. The SQLDatasource is set to use the value of this invisible label as a parameter to a query of "Get all child records where parentid=(pkey)".
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[Infragistics] Vince McDonald posted over 16 years ago

Two questions:

Are you using a WebAsyncRefreshPanel or an UpdatePanel on your page? If so, these may be causing your styles defined in InitializeLayout to be lost. You may want to style your grids using CSS instead, if this is the case.

How are you passing the information from the parent grid to the child grid? This may simply be an order-of-events issue, depending on what you're doing and when.
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