drop-down menu in uitable

pl=struct2table(app.Preset);
app.Preset_UITable.Data=pl;
app.Preset_UITable.ColumnName = pl.Properties.VariableNames;

RankMode=Function_Categorical_Struct("RankingMode");
cat = categories(RankMode);
 colu={'char' {cat{:}} };  
 app.Preset_UITable.ColumnFormat=colu; 

i receive this error:

Warning: 'ColumnFormat' value has no effect when 'Data' value is a table array.

 %{
 RankMode = 

  6×1 categorical array

     Descending Net Profit 
     Ascending Net Profit 
     Descending historical MaxDD 
     Ascending historical MaxDD 
     Descending NetProfit/MaxDD ratio 
     Ascending NetProfit/MaxDD ratio 
 %}   

How do I open the menu with the menu below by pressing the button ?

Answer 1

[Voss]

As the warning suggests, if you want to use ColumnFormat your Data can't be a table. Try using a cell array for Data, as in:

pl = struct2table(app.Preset);
app.Preset_UITable.Data = table2cell(pl);

Then you can set ColumnFormat to include a cell array of chars representing the items in a drop-down menu.

I'm not sure how many columns your table has (the screenshot shows 4, but the ColumnFormat/colu you define has 2) nor which column is intended to contain the drop-down menus. Make sure ColumnEditable is set to true on the drop-down column. You should avoid naming a variable cat, since that's the name of a built-in function.

app.Preset_UITable.ColumnName = pl.Properties.VariableNames;

RankMode = Function_Categorical_Struct("RankingMode");

cats = categories(RankMode);

% 4 columns, 3rd is drop-downs; adjust as needed:
colu = [{'char'} {'char'} {cats.'} {'char'}];

app.Preset_UITable.ColumnFormat = colu;