Hi, one of the design features of many Tk list type widgets, is that they tend to keep an internal counter of all the list changes. For instance say you add 100 entries, internally they would be labeled 0..99. Now if you delete 0..99, and then try to add another fresh 100, their internal counter would range from 100... 199, even though you think of them as 0..99 because of their appearance on the screen.

So, just as with everything else in this world, it is best to learn to reuse things. An example is here: Tk::TableMatrix Memory Usage.

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.