Updating Table Data not working

2012 9 20
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Hi Guys, This should be simple but I seem to be hitting a brick wall:
I use:
table = uitable('Data',data,'RowNames',rowNames,'ColumnNames',colNames);
I then try:
set(table,'Data',data2)
But I am getting the error "Invalid handle object"
Any thoughts?
Thanks in advance
Tim.

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Matt Fig
Matt Fig 2012-9-20
编辑：Matt Fig 2012-9-20

0 个投票

Where is the second piece of code in relation to the first piece?
Strange, because it works just fine here:
RN = {'a','b','c'};
CN = {'col'};
dat = zeros(length(RN),length(CN));
table = uitable('Data',dat,'RowName',RN,'ColumnName',CN);
dat2 = ones(length(RN),length(CN));
set(table,'Data',dat2)

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Tim Mottram
Tim Mottram 2012-9-20
编辑：Tim Mottram 2012-9-20
After it. Directly after it. I was just testing how I would do it before putting it in my code. data is:
zeros(length(rowNames),length(colNames));
and data2 is
ones(length(rowNames),length(colNames));
Matt Fig
Matt Fig 2012-9-20
It works for me. What version are you using?
Tim Mottram
Tim Mottram 2012-9-20
Well, I just tested your code and it worked, then I tested mine again and I worked. So I don't know what happened but its working now. Many thanks.
Tim Mottram
Tim Mottram 2012-9-20
I just checked again and the bit that isn't working is when I try to return the handle from a function. Is this possible?
Tim Mottram
Tim Mottram 2012-9-20
I am using:
function table = makeTable(fileNames,data)
colNames = {'Spec Value','Spec Confidence','AVG Value','AVG confidence',...
'Var Value','Var Confidence','Pwr Value','Pwr Confidence',...
'Ibp Value', 'Ibp Confidence'};
table = uitable('Data',data,'ColumnName',colNames,'RowName',fileNames);
end
When I try to update using:
set(table,'Data',data2)
I get the "Invalid handle object." error
Matt Fig
Matt Fig 2012-9-20
Yes, it should work. Did you have the function return the handle?
table = makeTable(....); % Return the handle
set(table,.....)
Tim Mottram
Tim Mottram 2012-9-20
Yes, thats the only difference, executing from the command window works fine, from a function doesn't. I have MatLab 2010a. The function is the one I previously posted.
Matt Fig
Matt Fig 2012-9-20
编辑：Matt Fig 2012-9-20
Wait a minute, what are you doing exactly? I assumed you have the function makeTable in a stand-alone M-file. From the command line you do this:
table = makeTable(ARGS); % Return handle. Use approp. args
set(table,ARGS)
but you are saying something else? If your setup is different, please specify exactly what you are doing. If it is as I describe, what does this return:
table = makeTable(ARGS); % Return handle. Use approp. args
[ishandle(table) table findall(0,'type','uitable')]
Image Analyst
Image Analyst 2012-9-20
Before you execute the set(table,...) command, set a breakpoint on that line. Then over the mouse over table. Does it give a valid handle number, like 185.2347, or does it say empty or null or something bad like that? Or just type table into the command window and tell us what it says there. It will give the value of table or else say that something's wrong. If it's not a floating point number like I said then you blew it away somehow, perhaps with a call to clear or delete.
Tim Mottram
Tim Mottram 2012-9-21
Hi Guys, I'm really sorry, It was me being a total fool. I was closing the table before I updated the data. I'm really sorry if I have wasted your time. Thanks for all your help and patience.

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