How to delete content of table data from gui ?

Question

Cristian Martin 2022-5-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1726720-how-to-delete-content-of-table-data-from-gui

评论： Cristian Martin 2022-5-26

采纳的回答： Cris LaPierre

I have in my GUI a table wich gather data from multiple edit text trough a button boxes:

global p;

val1 = get(handles.edit2, 'String');

val2 = get(handles.edit4, 'String');

val3 = get(handles.edit5, 'String');

val4 = get(handles.edit6, 'String');

val5 = get(handles.edit7, 'String');

val6 = get(handles.edit8, 'String');

val7 = get(handles.edit9, 'String');

val8 = get(handles.edit10, 'String');

val9 = get(handles.edit11, 'String');

val10 = get(handles.edit12, 'String');

val11 = get(handles.edit13, 'String');

val12 = get(handles.edit14, 'String');

val13 = get(handles.edit29, 'String');

valp1 = get(handles.edit16, 'String');

valp2 = get(handles.edit17, 'String');

valp3 = get(handles.edit18, 'String');

valp4 = get(handles.edit19, 'String');

valp5 = get(handles.edit20, 'String');

valp6 = get(handles.edit21, 'String');

valp7 = get(handles.edit22, 'String');

valp8 = get(handles.edit23, 'String');

valp9 = get(handles.edit24, 'String');

valp10 = get(handles.edit25, 'String');

valp11 = get(handles.edit26, 'String');

valp12 = get(handles.edit27, 'String');

valp13 = get(handles.edit30, 'String');

p.MyData = [p.MyData ; [{val1} {val2} {val3} {val4} {val5} {val6} {val7} {val8} {val9} {val10} {val11} {val12} {val13}...

{valp1} {valp2} {valp3} {valp4} {valp5} {valp6} {valp7} {valp8} {valp9} {valp10} {valp11} {valp12} {valp13}]];

set(handles.uitable1, 'Data', p.MyData);

All I want is to create a button for deleting entire content of the table like this:

tableData = get(handles.uitable1,'Data');

charLocations = cellfun(@ischar, tableData);

tableData(charLocations) = {''};

tableData(~charLocations) = {[]};

set(handles.uitable1, 'Data', tableData);

The problem is after the table data's are delete it and I press the button for gather new data from forms, all the old information come back in the table including the new one. Supose that some how must to clear some buffer or something...

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Cristian Martin 2022-5-25

The second problem is when I load a csv with old data into the same table, it loading well ,but when I want to gather new data in order to fill the loaded table it start a new one

code for loading csv

[filename, pathname]=uigetfile({'*.csv'}, 'Select File');

if isequal(filename,0)

return

else

Path=strcat(pathname,filename);

data=readtable(Path, 'Delimiter',',');

data = table2cell(data);

set(handles.uitable1, 'Data', data);

end

guidata(hObject, handles);

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Answer 1

Cris LaPierre 2022-5-25

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1726720-how-to-delete-content-of-table-data-from-gui#answer_971385

All the data returns because you likely have not cleared your variable p.MyData. You code for collecting values appends the new values to the bottom of p.MyData. To get the behavior you want, when you clear your uitable, you also need to delete values in p.MyData.

Perhaps something like p.MyData = [];

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Cris LaPierre 2022-5-25

For your second question, if I understand correctly, you want to append gathered values to the existing table, not replace them.

From my understanding, there is no append feature for a table. When you assign values to the Data property, it must have all values you want your table to have. Therefore, in order to append, you must first capture the existing values in a variable. You then append values to that variable. Once complete, you assign that variable to the table's data property.

Cristian Martin 2022-5-26