On Wed, Feb 2, 2011 at 12:29 AM, Bob Sneidar <[email protected]> wrote:
> Ok Peter helped me understand the GetDataOfIndex/SetDataOfIndex functions. I
> think when I read, "- Retrieves the internal array for key pIndex of the
> internal array in the data grid..." I just assumed that the returned value
> would always be an array. I see now that if you reference a column name for
> the second argument you get a value instead.
>
Internally the datagrid works with arrays even if you populate with
the dgText property.
For populating a datagrid of 3 columns with the dgData property we
could use a script such as:
put "a1" into theData[1]["col1"]
put "b1" into theData[1]["col2"]
put "c1" into theData[1]["col3"]
put "a2" into theData[2]["col1"]
put "b2" into theData[2]["col2"]
put "c2" into theData[2]["col3"]
Now if you transpose this code as bricks or pieces of puzzle and
encase each piece by index and column names you could get:
theData[1]["col1"]["col2"]["col3"]
a1 b1 c1
theData[2]["col1"]["col2"]["col3"]
a2 b2 c2
Now let's join the col names and extract each index
theData["col1"]["col2"]["col3"]
1 a1 b1 c1
2 a2 b2 c2
Then you have a double entry table: the datagrid.
Understand how working with arrays is one of the key to understand the
datagrid object, I think. It make good sense why a name of a column
(not the label) must be filled and unique: its just a key in an array.
getDataOfIndex simply read the corresponding value in a double entry
table such as you could do it in a spreadsheet, by using A2 or L2C1
Best regards,
--
-Zryip TheSlug- wish you the best! 8)
http://www.aslugontheroad.co.cc
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