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The code given here can be used to adjust the items and text in description environment. I wonder how to use these options [leftmargin=!,labelwidth=\widthof{\bfseries The longest label}] with beamer in LyX. Thanks

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A workaround is to not use a list at all, but a table where the first column is an l column, and the second is a p column. Add a table with Insert --> Table, or the corresponding button on the toolbar, remove all horizontal and vertical lines, and make it two columns. Right click a cell in the second column, and choose More --> Settings. Set the width to a specific value, this will allow for line breaking in the second column. Make the first column left aligned.


Original answer -- doesn't work for beamer

  1. Add the Customisable lists (enumitem) module, in Document --> Settings --> Modules.

  2. To use \widthof you need to load the calc package, so in Document --> Settings --> LaTeX preamble add

    \usepackage{calc}
    
  3. Right click the first entry in the list, choose Insert short title.

  4. Add an ERT in the opt box, with Ctrl + L.

  5. Write leftmargin=!,labelwidth=\widthof{\bfseries The longest label} in the ERT.

You can also define global settings for all description lists, as I mention in my answer to Description-like environment with fixed labels width

  • Thanks @Torbjorn for your answer. Something going weird with me today. I'm using beamer and couldn't add Customisable lists (enumitem) module. Then I tried \usepackage{enumitem} which again not working. Any idea!!! – MYaseen208 Mar 4 '14 at 16:18
  • @MYaseen208 No, enumitem isn't compatible with beamer, sorry. I don't have any alternative at the moment. – Torbjørn T. Mar 4 '14 at 16:21
  • One possibility is to use \usedescriptionitemofwidthas{The longest label}. This is partial solution which adjust the text but doesn't align the items. – MYaseen208 Mar 4 '14 at 17:01
  • This is also helpful. – MYaseen208 Mar 4 '14 at 17:07
  • Thanks @Torbjorn for your help. I figure out the problem. See my answer. – MYaseen208 Mar 5 '14 at 2:41
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Got it!!!

  1. Add \defbeamertemplate{description item}{align left}{\insertdescriptionitem\hfill} in preamble.

  2. Use description environment in LyX.

  3. Add \setbeamertemplate{description item}[align left] in ERT before the description environment in LyX.

  4. Right click the first entry in the list, choose Insert Longest label.

  5. Add an ERT in the opt box, with Ctrl + L.

  6. Write The longest label in the ERT.

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