Databases Reference
In-Depth Information
Images
A QlikView expression does not always have to be text or a calculation. There are
some objects, for example, the
Text Object
or even a
Straight Table
, that are also
able to display the result of an expression as an image.
The
Images
tab makes it easy to select images that are built into QlikView, or which
have been bundled into the document via script. Simply select an image name from
the
Image
drop-down list or, more conveniently, from a visual menu of images by
clicking on the
Advanced
button.
Clicking on the
Paste
option will enter a string referencing the corresponding
image into the expression input field. These string values can also be used within
expressions. For example, the following expression will compare the
Target
ield
using the
if
function. If the value is greater than 100, a green upwards arrow will be
displayed, otherwise a red downwards arrow will be shown.
if(Target > 100, 'qmem://<bundled>/BuiltIn/arrow_n_g.png',
'qmem://<bundled>/BuiltIn/arrow_s_r.png')
Click on
Cancel
in the
Edit Expression
dialog window to close it without saving any
changes and close the
Chart Properties
window as well.
The Expression Overview window
With expressions in so many locations, it can be hard to keep track of them all.
This is where the
Expression Overview
window comes in handy; it offers a central
location to manage all expressions being used in our QlikView document.
The
Expression Overview
window can be opened by pressing
Ctrl
+
Alt
+
E
or by
selecting
Settings
|
Expression Overview
from the menu bar.
