I added some logging to the LayoutControl message handler so that I could observe the order and content of the messages. Specifically, it logs the dgIndex, dgColumn, and the rect.
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logDebug( "index: '" & the dgIndex of me \
& "', column: '" & the dgColumn of me \
& "'," && "rect:" && pControlRect )
The first oddity that I noticed is that dgIndex is always empty (see the log output below).
Next was the number of times that the message is sent. My grid has five visible columns and is populated with three records. I was expecting to see the LayoutMessasge sent 15 times. Instead it is sent to the same column 15 times for each record, each time with a different rect.
Here is the log output:
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[11:12:04 AM] index: '', column: 'name', rect: 6,42,241,63
[11:12:04 AM] index: '', column: 'name', rect: 6,63,241,84
[11:12:04 AM] index: '', column: 'name', rect: 6,84,241,105
[11:12:04 AM] index: '', column: 'name', rect: 6,105,241,126
[11:12:04 AM] index: '', column: 'name', rect: 6,126,241,147
[11:12:04 AM] index: '', column: 'name', rect: 6,147,241,168
[11:12:04 AM] index: '', column: 'name', rect: 6,168,241,189
[11:12:04 AM] index: '', column: 'name', rect: 6,189,241,210
[11:12:04 AM] index: '', column: 'name', rect: 6,210,241,231
[11:12:04 AM] index: '', column: 'name', rect: 6,231,241,252
[11:12:04 AM] index: '', column: 'name', rect: 6,252,241,273
[11:12:04 AM] index: '', column: 'name', rect: 6,273,241,294
[11:12:04 AM] index: '', column: 'name', rect: 6,294,241,315
[11:12:04 AM] index: '', column: 'name', rect: 6,315,241,336
[11:12:04 AM] index: '', column: 'name', rect: 6,336,241,357
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,42,302,63
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,63,302,84
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,84,302,105
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,105,302,126
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,126,302,147
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,147,302,168
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,168,302,189
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,189,302,210
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,210,302,231
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,231,302,252
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,252,302,273
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,273,302,294
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,294,302,315
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,315,302,336
[11:12:04 AM] index: '', column: 'acceptsPartials', rect: 241,336,302,357
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,42,392,63
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,63,392,84
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,84,392,105
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,105,392,126
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,126,392,147
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,147,392,168
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,168,392,189
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,189,392,210
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,210,392,231
[11:12:04 AM] index: '', column: 'dateCreated', rect: 302,231,392,252
[11:12:05 AM] index: '', column: 'dateCreated', rect: 302,252,392,273
[11:12:05 AM] index: '', column: 'dateCreated', rect: 302,273,392,294
[11:12:05 AM] index: '', column: 'dateCreated', rect: 302,294,392,315
[11:12:05 AM] index: '', column: 'dateCreated', rect: 302,315,392,336
[11:12:05 AM] index: '', column: 'dateCreated', rect: 302,336,392,357
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,42,482,63
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,63,482,84
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,84,482,105
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,105,482,126
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,126,482,147
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,147,482,168
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,168,482,189
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,189,482,210
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,210,482,231
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,231,482,252
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,252,482,273
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,273,482,294
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,294,482,315
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,315,482,336
[11:12:05 AM] index: '', column: 'dateModified', rect: 392,336,482,357
[11:12:05 AM] index: '', column: 'notes', rect: 482,42,749,63
[11:12:05 AM] index: '', column: 'notes', rect: 482,63,749,84
[11:12:05 AM] index: '', column: 'notes', rect: 482,84,749,105
[11:12:05 AM] index: '', column: 'notes', rect: 482,105,749,126
[11:12:05 AM] index: '', column: 'notes', rect: 482,126,749,147
[11:12:05 AM] index: '', column: 'notes', rect: 482,147,749,168
[11:12:05 AM] index: '', column: 'notes', rect: 482,168,749,189
[11:12:05 AM] index: '', column: 'notes', rect: 482,189,749,210
[11:12:05 AM] index: '', column: 'notes', rect: 482,210,749,231
[11:12:05 AM] index: '', column: 'notes', rect: 482,231,749,252
[11:12:05 AM] index: '', column: 'notes', rect: 482,252,749,273
[11:12:05 AM] index: '', column: 'notes', rect: 482,273,749,294
[11:12:05 AM] index: '', column: 'notes', rect: 482,294,749,315
[11:12:05 AM] index: '', column: 'notes', rect: 482,315,749,336
[11:12:05 AM] index: '', column: 'notes', rect: 482,336,749,357
dgIndex being empty is still an issue, though.
I'll post this anyway just in case some other newcomer like myself runs into this.
Thanks,
Dave