data grid code (color)
sadhu at castandcrew.com
Fri Apr 17 19:10:29 EDT 2009
You said, let you know. Ok!
I must be doing something wrong, it doesn't seem to work. On the other
hand I did vary slightly from your instructions. I will file this as a
bug report so I can include a sample stack and screen shots.
The goal is to add a custom behavior that will turn certain cells color
upon a certain condition.
Attempting to apply the example logic in practice, nothing happens, no
How to Duplicate This Problem
Create a new stack, very simple, with 2 objects, a populate button, and
a data grid with 3 columns, with default names, that is group
"datagrid", and columns "col 1", col 2", and "col 3". Populate a few
rows, say 3, using the contents pane of the property inspector.
The populate button has this code (assuming you haven't resorted, the
row numbers and index numbers are the same)
put it into thePattern
repeat with rownum = 1 to 3
dispatch "setdataofindex" to group "datagrid" with rownum, "Col
dispatch "RefreshList" to group "datagrid"
Note that the refreshlist call at the end is necessary or you won't see
any changes. The above will let you change the contents of column 2,
the first 3 rows.
Next, select the data grid and using the property inspector, and in the
columns choice, highlight col 2, then use the plus button at the bottom
and then click column behavior to begin editing the custom behavior for
To the fillindata handler, add some code to change the color depending
on the contents of the cell. Like this
on FillInData pData
-- This message is sent when the Data Grid needs to populate
-- this template with the column data. pData is the value to be
set the text of field 1 of me to pData
if (pData contains "foo") then
set the backgroundcolor of field 1 of me to "red"
Now run your stack. put 'bar" in column 2, by clicking the populate
button and answering bar. Nothing should happen. Now do it again and
answer foo. Again, nothing happens, but the foo cells were expected to
Trevor, is my error obvious to the master? What have I left out!
Sadhu Nadesan wrote:
> Wow, Trevor, you are the MAN! MAHALO! I will check it out right away.
>> You should be able to get this working without too much trouble.
>> I've added a lesson to the manual that discusses how you can
>> quickly override the default column behavior for a data grid table.
>> There are two samples at the end of the lesson, one of which shows
>> how to color a cell.
>> Let me know if this helps.
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