Question

Rezising Columns in a GRID!!

Asked by: lgmm

the number of columns in the table t1 and grid1 is the same

i have this simple code

thisform.grid1.recordsource=''
select * from t1 into cursor query
thisform.grid1.recordsource='query'


THEN

my columns change it size to the size of my record, and i cant use any method inside the grid
i lost the name of headers and i see there the name of my fields in my table t1

what can i do?


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Asked On
2003-04-03 at 09:21:03ID20573278
Tags

grid

,

column

Topic

FoxPro Database

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Answers

 

by: CarlWarnerPosted on 2003-04-03 at 09:29:05ID: 8263079

I'm not totally sure I understand your question posed with the information you posted here.

However, I am gathering that you issued a query that seems to have changed the grid's properties.

From the following MS KB article (ignore the title):

PRB: Cursor-Based Grid Goes Blank If SQL SELECT Resets Cursor
http://support.microsoft.com/default.aspx?scid=kb;en-us;140653

SYMPTOMS

If a grid's RecordSource property is set to a cursor, and then the SQL SELECT command resets the cursor, the grid appears blank if the RecordSource property is not set back to itself.

The following command will refresh the grid properly if a SQL SELECT is run to rebuild the cursor, but if the grid's column or header properties have been customized, these customized changes will be lost and the grid's column and header properties will change back to their default settings:

   THISFORM.GRID1.RECORDSOURCE=THISFORM.GRID1.RECORDSOURCE
                   
Such customization could be headers with different names, longer column lengths, and code placed in the events of columns or headers.


See the MS KB article for the solution, if this condition does in fact apply to you.

 

by: CarlWarnerPosted on 2003-04-03 at 09:30:31ID: 8263086

OK.  I'll post their KB resolution.

RESOLUTION

To refresh the grid without losing the custom properties of the columns and headers, set the RecordSource property to a dummy cursor that already has been created with the same fields as the cursor the grid is based on. After the SQL SELECT is run, change the RecordSource property back to the rebuilt cursor. This allows the properties of the columns and headers to remain intact while the cursor is being rebuilt.

See the article for the simple code examples.

 

by: samopalPosted on 2003-04-03 at 09:34:40ID: 8263110

Nothing. This is a "normal" grid behavior. Every time you disconnect grid from it's source grid loose it's properies (predefined columns, headers, ets...). So, I see only 2 ways to solve this :

1)do not change control source while executing; instead cursor use view and REQUERY command

2)if you don't want to use views, put all grid formatting commands IN THE CODE as separate function, and call it every time you change the source of the grid

D'Al

 

by: CarlWarnerPosted on 2003-04-04 at 00:28:57ID: 8267948

I guess I'll try to say it a different way.

You can do what you want to do by creating a dummy cursor which structurally mimics your query but acts as a placeholder for the grid so the custom properties of the columns and headers of the grid don't go back to default (ugly) mode.

Instead of what you had:

thisform.grid1.recordsource=''
select * from t1 into cursor query
thisform.grid1.recordsource='query'

Try something similar to this:

select * from t1 WHERE .F. into cursor CursJunk
thisform.grid1.recordsource='CursJunk'
select * from t1 into cursor query
thisform.grid1.recordsource='query'

That is what the MS KB article is awkwardly trying to tell you.  I used this in a legacy app to quickly generate some prettier grids to offer the users some new quick queries for something they never had before.

 

by: lgmmPosted on 2003-04-04 at 07:45:31ID: 8270254

i had been made both solutions

i had been made a dummy cursor, but i still lose the cursor

y am using formmat properties in the code , but i lose my functions like 'Click'

i m not sure what is happeninf, but i have this problemm commonly

yesterday i solve it with editing the cursor an resizing with the mouse the columns, and then it works, but im not sure that it is a logical solution.

in other grids, i had been putting the width propertie in code and naming the sql fields in the initial query and it  works only for displaying grids



 

by: ah7386Posted on 2003-04-07 at 08:51:09ID: 8284869

make sure you are not closing the 'query' table before doing the

Thisform.grid1.recordsource = ""

for example have you got

select query
use

or

use <tablename> in your code anywhere - if so this will kill the grid!

AH

20120131-EE-VQP-002

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