The Example Listings

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As is generally known, an example is worth a thousand words. This is especially true for UNO. Sourcecode written in UNO is very often self-explanatory and for this reason the following sections provide a large set of example listings. Some of them are ready-to-use, whereas the focus of other examples is on demonstrating concepts.

All coding examples that demonstrate how to insert controls into a dialog make use of the following method:

  /** makes a String unique by appending a numerical suffix
   * @param _xElementContainer the container
   * that the new Element is going to be inserted to
   * @param _sElementName the StemName of the Element
  public static String createUniqueName(XNameAccess _xElementContainer, String _sElementName) {
      boolean bElementexists = true;
      int i = 1;
      String BaseName = _sElementName;
      while (bElementexists) {
          bElementexists = _xElementContainer.hasByName(_sElementName);
          if (bElementexists) {
              i += 1;
              _sElementName = BaseName + Integer.toString(i);
      return _sElementName;

As already explained, the dialog keeps the controls in a NamedContainer that implements It is absolutely necessary for the controls to have a unique name before they are added to the dialog to prevent a This method appends a suffix to the scheduled name of the control to make sure that the name is unique.

Content on this page is licensed under the Public Documentation License (PDL).
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