Hi,
I have been trying waaaay too much to figure this out and have not
been able to do so. I have seen several examples and suggestions in
the forums but none of them have worked. I have the following piece
of code:
<grid name="country_grid" width="100%" datapath="response/"
contentdatapath="countries/country" sizetoheader="false">
<attribute name="rowcolor" value="1" />
<method name="alternate_color">
<![CDATA[
var pos = this.datapath.xpathQuery('position()');
Debug.write(pos);
if (pos % 2 == 0) {
this.setAttribute('rowcolor', 0xeeeeff);
} else {
this.setAttribute('rowcolor', 0xffffff);
}
this.setBGColor(this.rowcolor);
]]>
</method>
<gridcolumn editable="false" width="25" sortable="false"
resizable="false">#
<text datapath="position()">
<method event="ondata" args="d">
<![CDATA[
parent.rowcolor = d;
Debug.write("Position ", d, this.datapath.xpathQuery
('position()'));
]]>
</method>
</text>
</gridcolumn>
<gridcolumn editable="false" width="40">Code
<text datapath="code/text()">
<method event="ondata" args="d">
<![CDATA[
Debug.write("Got data ", d, this.datapath.xpathQuery
('position()'), parent.rowcolor);
]]>
</method>
</text>
</gridcolumn>
<gridcolumn editable="false" width="460">Name
<text datapath="name/text()" />
</gridcolumn>
</grid>
When executed, the grid populates just fine showing all the right
contents, including the numbered '#' column. Also, when this same
column (#) is 'rendered', the debugger shows the right thing (e.g.
Position 1 1, Position 2 2, Position 3 3, etc).
However, when the column 'Code' is rendered, the debugger shows the
wrong thing (e.g. Got data AR 1 <<undefined>>, Got data AQ 1
<<undefined>>, Got data AM 1 <<undefined>>, etc). It seems that when
rendering the 'Code' column, xpathQuery('position()') is always
returning 1. Also, the assignment to parent.rowcolor when rendering
the '#' is not "persisting" for the other columns.
For "debugging" purposes, the method named "alternate_color" is never
used. I had originally put that as an event="ondata", but that didn't
work, so I was trying to isolate the problem.
Why is it so difficult for me (or may be many of us) to render a grid
with alternating row colors? Any help would be greatly appreciated
since I'm stuck at this juncture.
Thanks,
Daniel
_______________________________________________
Laszlo-user mailing list
[email protected]
http://www.openlaszlo.org/mailman/listinfo/laszlo-user
