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Infralution Support Forum Index
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  Topic: Column Caption Justification
MikeR

Replies: 1
Views: 5740

PostForum: Virtual Tree Support   Posted: Thu Mar 12, 2020 7:58 pm   Subject: Column Caption Justification
I find that all column captions are center justified regardless of the justification of the cells in the column that they caption.

Any way to change that justification to, say, Left for a particula ...
  Topic: Want to create temporary virtual data object buffers
MikeR

Replies: 3
Views: 12225

PostForum: Virtual Data Objects Support   Posted: Wed Aug 29, 2018 12:10 am   Subject: Easy customer
Yes, I am a cheap date

:>
  Topic: Want to create temporary virtual data object buffers
MikeR

Replies: 3
Views: 12225

PostForum: Virtual Data Objects Support   Posted: Tue Aug 28, 2018 8:11 pm   Subject: Answer my own question
Typical with me after a short period of reflection (pun intended).

Since I am using a code generator to generate my strongly typed virtual datasets / VDO classes, I just extended the generator to c ...
  Topic: Want to create temporary virtual data object buffers
MikeR

Replies: 3
Views: 12225

PostForum: Virtual Data Objects Support   Posted: Mon Aug 27, 2018 6:36 pm   Subject: Want to create temporary virtual data object buffers
I have a need for temporary data storage during flat file processing of import data. After file processing is completed, the temporary data is then processed through my VDO recordsets normally and so ...
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Sat Aug 04, 2018 5:28 pm   Subject: Backcolor
..and the boolean is not strictly necessary in this case as the () overload processes identically.

thanks, and cheers
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Sat Aug 04, 2018 5:25 pm   Subject: Backcolor
Answered my own question, my last comment gave me an idea. This is what I had to do to get it to work correctly:

private void myForm_VisibleChanged(object sender, EventArgs e)
{
if (myTree.Visib ...
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Sat Aug 04, 2018 5:16 pm   Subject: Backcolor
Yes, I just verified that GetCellData is NOT called while the form containing the virtual tree has not yet been displayed and the UI message loop running. This is why programmatically scrolling past t ...
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Sat Aug 04, 2018 5:08 pm   Subject: Backcolor
I really appreciate your help, don't misunderstand me. But according to your documentation, UpdateRowData, UpdateRows, et al, only work for rows BEING DISPLAYED.

I need to change the backcolor asig ...
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Sat Aug 04, 2018 3:27 am   Subject: BackColor
Sorry, don't see what data structure to call UpdateData on. The tree won't allow me to call it directly. I think I have version 4.8.8.

Please treat me as completely ignorant here.

Thx for your p ...
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Fri Aug 03, 2018 5:03 pm   Subject: BackColor issue still
Fooled myself into thinking this worked completely, still have an issue.

My tree has 17 rows showing on the screen. When the screen comes up, rows 21 and 121 should be in alternate color. However, ...
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Fri Aug 03, 2018 5:37 am   Subject: Change BackColor of specific row
Thanks. I ALMOST had it right. I am using e.Row.RowIndex instead of ChildIndex because there are no nested rows in this data structure, just a simple table being shown.

Using VirtualRecordsets obje ...
  Topic: Change BackColor of specific rows in a list of row numbers
MikeR

Replies: 11
Views: 21580

PostForum: Virtual Tree Support   Posted: Thu Aug 02, 2018 6:19 pm   Subject: Change BackColor of specific rows in a list of row numbers
I am attempting to color specific row numbers in a simple virtual tree, and it is escaping me how exactly to do that. It's not odd/even, it's for example:

Tree with 1000 rows, all cells have defaul ...
  Topic: How to execute an aggregate function from within VDO
MikeR

Replies: 2
Views: 8146

PostForum: Virtual Data Objects Support   Posted: Sat May 05, 2018 12:51 am   Subject: How to execute an aggregate function from within VDO
Thanks, I suspected that might be the case. I just used Npgsql package to do it most simply, and it worked cleanly. (ExecuteScalar).
  Topic: How to execute an aggregate function from within VDO
MikeR

Replies: 2
Views: 8146

PostForum: Virtual Data Objects Support   Posted: Fri May 04, 2018 4:03 pm   Subject: How to execute an aggregate function from within VDO
I want to do something like this:

select max(my_primary_key_column) from myTable;

If possible, how can this be implemented in VDO and the value extracted from the VDO classes?

Thanks.
  Topic: Different Child Datasets depending on parent column value
MikeR

Replies: 6
Views: 15081

PostForum: Virtual Tree Support   Posted: Fri Mar 02, 2018 4:56 pm   Subject: Figured it out myself
Data binding is not the issue.

I now have "nesting" Virtual Trees that handle multiple child items that are in collections that are disparate from the parent data. This way, child collect ...
 
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