Re: [Laszlo-user] Grid control bug in 3.2cr3?

Amy Muntz Wed, 22 Mar 2006 13:44:10 -0800

Hi James,

The short answer is that the problem is in the use of stretch in the code, and not in the grid control.

Ben was able to investigate this further (thanks, Ben!). I've provided his input from the JIRA bug here in case it might be helpful to other people too:

"In the code provided by the user, the instance of myGrid (which extends grid) has stretches="both". That doesn't make sense here; stretches is for stretching resources, not for stretching components. The grid's width and height are constrained to the width and height of the parent view correctly in the user's test case, with width="${parent.width}"

height="${parent.height - 28}"

Removing the line stretches="both" makes the column headers appear properly. "

In addition - he also checked in an updated test file, test/bugs/lpp-1852.lzx, which displays both the "broken" behavior and the correct behavior.

--- Amy

On Mar 20, 2006, at 3:23 PM, James Howe wrote:

I'm using a grid control in my application. I've been running under 3.1.1
and things work fine. I recently downloaded the 3.2cr3 version and tried
my application using that platform. I noticed that the Grid control did
some strange things when running under 3.2. I'm not sure whether this is
a bug in 3.2 or whether it's a problem with the way that I'm using the
control which didn't show up in 3.1.1. Here is a simple example of my
program:

<canvas debug="true">
<dataset name="testdata">
<items>
<item>
   <column1>Hey1 </column1>
   <column2>Column 2 (1)</column2>
   <column3>1234</column3>
   <sort>1</sort>
</item>
<item>
   <column1>Hey 2</column1>
   <column2>Column 2 (2)</column2>
   <column3>2234</column3>
   <sort>2</sort>
</item>
<item>
   <column1>Hey 3</column1>
   <column2>Column 2 (3)</column2>
   <column3>3234</column3>
   <sort>3</sort>
</item>
</items>
</dataset>
<class name="myGrid" spacing="2" extends="grid" showvlines="true"
bgcolor1="#EEEEEE" bgcolor0="white">
<gridcolumn name="column1" text="From" width="180" resizemargin="1"
resizable="false">
<text font="Arial" datapath="column1/text()"/>
</gridcolumn>
<gridcolumn name="column2" text="Subject" width="${parent.width - 365}"
resizemargin="1" resizable="false">
<text font="Arial" fontstyle="bold" datapath="column2/text()"/>
   </gridcolumn>
<gridcolumn name="column3" text="Date/Time" width="185" resizemargin="1"
resizable="false" sortpath="sort/text()">
<text font="Arial" fontstyle="bold"
datapath="column3/text()"></text>
</gridcolumn>
   </class>

   <view width="500" height="300">
<myGrid
width="${parent.width}"
height="${parent.height - 28}"
stretches="both"
datapath="testdata:/items"
contentdatapath="item"
multiselect="true"/>
   </view>
</canvas>

When I run under 3.1.1, the column headings at the top display as gray
buttony things the width of each column. The titles of the column appear
immediately. When I run under 3.2cr3, I get three blank gray buttony
things the width of each column, no column label appears. If I click the
top of the column, the column sorts just fine. If I move my mouse from
one column to the next, suddenly the column heading displays, but the
heading is reduced in length so that the clickable header is only slightly
bigger than the text of the label.

If I'm doing something wrong, or if something has changed with the grid
control I'm happy to correct my code, if not, should I go ahead and file a
bug report?

Thanks!

--
James Howe
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Re: [Laszlo-user] Grid control bug in 3.2cr3?

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