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Rob Rothwell | 11 Apr 22:29

Re: Adding a graphic to a WebGrid

On Fri, Apr 11, 2008 at 3:45 PM, Janko Mivšek <janko.mivsek <at> eranova.si> wrote:
You can prepare and put in a cell anything you want with:

       aGrid column: aNumber addBlock: aBlock

Block is called with a current row object as argument and it must return a valid WebElement.

This is just what I was looking for!  Is there anything you haven't thought of yet?

For instance let we put an arrow from existing method images in first column:

       aGrid column: 1
         addBlock: [:rowObject | WebImage gif: #arrowCircledRedGif ]

That will do it!

This can also be used for coloring cell content appropriately. But for coloring entire row you have some prepared methods too:

       rowBlueIfTrue: [:rowObject | "some boolean expresion"]
       rowGreenIfTrue:, rowRedIfTrue:, rowYellowIfTrue: rowGrayIfTrue:
       rowBoldIfTrue: "for whole row to be bold"

Thank you...the WebGrid is truly useful.  What did you think of my post last weekend about handling nil values in a sortable column?  I just subclassed WebGrid for now, but it's nice to have the nil values sort without causing a DNU...

Thanks again.  

Rob

P.S.  I have registered for Smalltalk Solutions; I'll take good notes and share what I pick up!


 


Best regards
Janko


--
Janko Mivšek
AIDA/Web
Smalltalk Web Application Server
http://www.aidaweb.si

<div>
<div class="gmail_quote">On Fri, Apr 11, 2008 at 3:45 PM, Janko Miv&scaron;ek &lt;<a href="mailto:janko.mivsek <at> eranova.si">janko.mivsek <at> eranova.si</a>&gt; wrote:<br><blockquote class="gmail_quote">
You can prepare and put in a cell anything you want with:<br><br>
 &nbsp; &nbsp; &nbsp; &nbsp;aGrid column: aNumber addBlock: aBlock<br><br>
Block is called with a current row object as argument and it must return a valid WebElement.</blockquote>
<div><br class="webkit-block-placeholder"></div>
<div>This is just what I was looking for! &nbsp;Is there anything you haven't thought of yet?</div>
<div><br class="webkit-block-placeholder"></div>
<blockquote class="gmail_quote">For instance let we put an arrow from existing method images in first column:<br><br>
 &nbsp; &nbsp; &nbsp; &nbsp;aGrid column: 1<br>
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;addBlock: [:rowObject | WebImage gif: #arrowCircledRedGif ]</blockquote>
<div><br class="webkit-block-placeholder"></div>
<div>That will do it!</div>
<div><br class="webkit-block-placeholder"></div>
<blockquote class="gmail_quote">
This can also be used for coloring cell content appropriately. But for coloring entire row you have some prepared methods too:<br><br>
 &nbsp; &nbsp; &nbsp; &nbsp;rowBlueIfTrue: [:rowObject | "some boolean expresion"]<br>
 &nbsp; &nbsp; &nbsp; &nbsp;rowGreenIfTrue:, rowRedIfTrue:, rowYellowIfTrue: rowGrayIfTrue:<br>
 &nbsp; &nbsp; &nbsp; &nbsp;rowBoldIfTrue: "for whole row to be bold"</blockquote>
<div><br class="webkit-block-placeholder"></div>
<div>Thank you...the WebGrid is truly useful. &nbsp;What did you think of my post last weekend about handling nil values in a sortable column? &nbsp;I just subclassed WebGrid for now, but it's nice to have the nil values sort without causing a DNU...</div>
<div><br class="webkit-block-placeholder"></div>
<div>Thanks again. &nbsp;</div>
<div><br class="webkit-block-placeholder"></div>
<div>Rob</div>
<div><br class="webkit-block-placeholder"></div>
<div>P.S. &nbsp;I have registered for Smalltalk Solutions; I'll take good notes and share what I pick up!</div>
<div><br class="webkit-block-placeholder"></div>
<div><br class="webkit-block-placeholder"></div>
<div>&nbsp;</div>
<blockquote class="gmail_quote">
<br><br>
Best regards<br>
Janko<br>
<br><br>
-- <br>
Janko Miv&scaron;ek<br>
AIDA/Web<br>
Smalltalk Web Application Server<br><a href="http://www.aidaweb.si" target="_blank">http://www.aidaweb.si</a><br>
</blockquote>
</div>
<br>
</div>
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