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.
Bob On Feb 1, 2011, at 3:14 PM, zryip theSlug wrote: > On Tue, Feb 1, 2011 at 11:45 PM, Bob Sneidar <b...@twft.com> wrote: >> Hi all. >> >> I am still having fits doing what I want. Perhaps in the past I have not >> described it very well, so I am going to try a different approach. >> >> What I need is to access the value in a single cell of a data grid and >> change it. For instance I would like to do something like: >> >> set the value of column 1 of row 1 of myDatagrid to "test". Better yet, >> although I know this is wishful thinking, set the 1:1 of myDataGrid to >> "test". Or how about, set the 1:1 to 1:3 of myDataGrid to "test1" & tab & >> "test2" & tab & "test3"? That was the kind of API I envisioned for a table >> object. I know that is simplistic, but I am not getting what I expect to get >> when I use the existing datagrid API. >> >> I have really tried to understand the API but I am at a total loss. I don't >> want to work with arrays here, I want to work with the indexes that the API >> returns. The closest I can get is to get and set the dgDataOfIndex but those >> are arrays. I don't want to change the whole line. I don't want to have to >> put the whole line back together when I only want to change the one value in >> the one column in the one row. Is this even possible? >> >> If not I understand, but it sure oughta be don't you think? Permit me a >> small rant. Shouldn't a table object work kind of like a spreadsheet, where >> I can reference a row and a column and get/set a value? This is really what >> I need. Knowing the internal array structure has not helped me. >> >> I have gotten the dgDataOfIndex for a data grid, modified the first element >> in the array, set the dgDataOfIndex and then used DataGrid Helper to show >> me the contents of the data grid. The array is IDENTICAL to the one I get if >> I manually edit the values, but if I do it using code the datagrid appears >> empty, and refreshing the datagrid does not help. >> >> So I guess until there is a method of simple row:column referencing of >> datagrids, I am going to revert to using the dgText. Thank GOD and thank >> Trevor for this, or for me data grids would be unusable. >> >> <end_rant> > > Hi Bob, > > First of all have a look to these lessons: > > http://lessons.runrev.com/spaces/lessons/manuals/datagrid/lessons/7313-How-Do-I-Get-Data-Associated-With-a-Row-or-Column- > > and to the > SetDataOfIndex and SetDataOfLine commands, in the API documentation > >> ps. Thanks Zryip for all the help, but it appears your methods call things >> in the parent script that I cannot see or access (that may be a good thing) >> and so I cannot see what they are doing and why. I need to see code happen >> to understand it. > > I planned to create a new step by step tutorial about drag & drop > technics in datagrids. A kind of compilation of all the experiments I > done on this subject but this time with details explanation. Will > write it at soon as I have more time for. > > > Best regards, > -- > -Zryip TheSlug- wish you the best! 8) > http://www.aslugontheroad.co.cc > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
