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POHow to make a NSTableView with dynamic number of columns and binding in Cocoa /Xcode?
 

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  1. POHow to make a NSTableView with dynamic number of columns and binding in Cocoa /Xcode?
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    <p>Sorry, I know this is a bit complicated question .</p> <p>Life is easy when I want to make a NSTableview object on screen with fixed number of columns. I just make a data binding to each column and simply read/write to that model (according to MVC).</p> <p>But life gets unkind when I need a table with dynamic column number ( I mean user is allowed to add/ remove columns) . By the time I have used 2 different approaches: In first and easier , but worst approach I can make a table big enough , such that user can never fill it up !. but I know the memory would never appreciate that !!</p> <p>In second approach , I can make an array of NSTableColumn and assign a numbered identifier to each column like this:</p> <blockquote> <p>NSTableColumn * column[iColumn]; //NSInteger iColumn is defined by user</p> <pre><code> for( int i=0;i&lt; iColumn;i++){ column[i] = [[NSTableColumn alloc] initWithIdentifier:[ NSString stringWithFormat:@"%i" ,i] ]; [column[i] setWidth:100]; [tableView addTableColumn:column[i]]; } </code></pre> </blockquote> <p>This works fine, but there are some annoying limitations to that .for example using "Data binding " and using some drag&amp;drops is so much easier than handling a table with columns numbered as 1,2,3,.... programatically .</p> <p>I think to myself there must be some easier way to use UI Builder for this purpose rather than writing codes.Perhaps it may be possible to bind data for whole TableView rather than for each individual column ( something like what is available in Visual Studio C++/Clr for "dataTable" object. Or another method ? Any answer would be kindly appreciated</p>
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      1. POHow to make a NSTableView with dynamic number of columns and binding in Cocoa /Xcode?
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      1. POHow to make a NSTableView with dynamic number of columns and binding in Cocoa /Xcode?
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    1. COA table big enough...? Why not just put the table view in a scroll view.
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      1. POHow to make a NSTableView with dynamic number of columns and binding in Cocoa /Xcode?
      1. USTheAmateurProgrammer
    2. COSorry, but I couldn't get the solution. I think tableView is in a scrollView by default. Can you explain a little more please?
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      1. POHow to make a NSTableView with dynamic number of columns and binding in Cocoa /Xcode?
      1. USAug
    3. COWhat data will be bound to these new columns? Do you have many fields (or keys in a dictionary or attributes in an entity) that are in your original data but not bound to anything in your table view, or is the user somehow adding more fields of data also.
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      1. USrdelmar
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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