topic Dropdown - set token when no selection in Dashboards & Visualizations

Dropdown - set token when no selection

Shaw — Mon, 07 Feb 2022 12:21:38 GMT

Hello guys,

I need a help with a dropdown, basically i have a dropdown based on a previous one that returns me some choice about hostnames.

Based on this hostname i need to show some panels, but i would like that till the user doesnt's choose one option from the dropdown nothing appear in the dasboard.

But my token assume the "$label$" value so the depends attribute show alway what i'm trying to hide. Below the code:

<input depends="$switch_type$" type="dropdown" searchWhenChanged="true" token="device_name">
<label>Switch Name</label>
<fieldForLabel>switch</fieldForLabel>
<fieldForValue>hostname</fieldForValue>
<search>
<query>"my query "</query>
</search>
<change>
<set token="switch">$label$</set>
</change>

I would like that till the user doesnt select something from the dropdwon the token $switch$ is false or unset, in order to be able use it on depends condition...
The value that token can assume are not fixed so i can not use custom condition..

Thanks for the help

Re: Dropdown - set token when no selection

ITWhisperer — Mon, 07 Feb 2022 13:28:24 GMT

Can you unset the switch token as part of the change in the previous one?

Re: Dropdown - set token when no selection

Shaw — Mon, 07 Feb 2022 13:42:14 GMT

if you intend the previos dropdwon it doesn't affect the behavior.

The first dropdown permit to choose between: switch, router, plc ecc
The second dropdown permit to choose based on devyce type selected the device names (that i list using a search).

My token based on the second dropdown can assume the following values:
$switch$ = any names that the user click on the list shown
$switch$ = $label$ (if nothing is selected)

In a panel if use depends ="$switch$", no matter what it will always appear because the token has always a value.

Re: Dropdown - set token when no selection

ITWhisperer — Mon, 07 Feb 2022 13:50:25 GMT

Correct - depends works based on the presence or absence of the token not the value of the token

So what I was suggesting is that, in the first dropdown, you unset the token being used by the panels in their depends until a choice is made in the second dropdown. That way, when a new type is selected (switch, router, etc.) the panels disappear until the actual switch/router is selected from the list.

Re: Dropdown - set token when no selection

Shaw — Mon, 07 Feb 2022 14:11:37 GMT

mmm.. i'm not understanding how to make that condition in the first dropdown..
should i have a new token only for the visualizations?

Suppose my first dropdown is:

<input type="dropdown" token="device_type" searchWhenChanged="true">
<label>Device Type</label>
<choice value="switch">Switch</choice>
<choice value="router">Router</choice>
<change>

<condition label="Router">
<unset token="switch_type"></unset>
<set token="router_type">true</set>
</condition>

the second dropdown:

<input depends="$switch_type$" type="dropdown" searchWhenChanged="true" token="device_name">
<label>Switch Name</label>
<fieldForLabel>switch</fieldForLabel>
<fieldForValue>hostname</fieldForValue>
<search>
<query>"retrieve list off all switch name" </query>
</search>
<change>
<set token="switch">$label$</set>
</change>
</input>

my panel
<panel depends=???>

Re: Dropdown - set token when no selection

ITWhisperer — Mon, 07 Feb 2022 14:20:28 GMT

<input type="dropdown" token="device_type" searchWhenChanged="true"> <label>Device Type</label> <choice value="switch">Switch</choice> <choice value="router">Router</choice> <change> <condition label="Switch"> <set token="switch_type">true</set> <unset token="router_type"></unset> <unset token="switch"></unset> <unset token="router"></unset> </condition> <condition label="Router"> <unset token="switch_type"></unset> <set token="router_type">true</set> <unset token="switch"></unset> <unset token="router"></unset> </condition>

the second dropdown:

<input depends="$switch_type$" type="dropdown" searchWhenChanged="true" token="device_name"> <label>Switch Name</label> <fieldForLabel>switch</fieldForLabel> <fieldForValue>hostname</fieldForValue> <search> <query>"retrieve list off all switch name" </query> </search> <change> <set token="switch">$label$</set> </change> </input>

Similarly for router_type dropdown

Then in panels

and similarly for router panel

Re: Dropdown - set token when no selection

Shaw — Mon, 07 Feb 2022 14:27:54 GMT

mmm in the moment i choose the device type in the first dropdown,
the token $switch$ assume the value $label$ even with your integration..

Re: Dropdown - set token when no selection

ITWhisperer — Mon, 07 Feb 2022 16:26:44 GMT

Try something like this

<input depends="$switch_type$" type="dropdown" searchWhenChanged="true" token="device_name"> <label>Switch Name</label> <fieldForLabel>switch</fieldForLabel> <fieldForValue>hostname</fieldForValue> <search> <query>"retrieve list off all switch name" </query> </search> <change> <eval token="switch">if(mvcount($form.device_name$)>0,$label$,null())</eval> </change> </input>

Re: Dropdown - set token when no selection

Shaw — Mon, 07 Feb 2022 17:40:55 GMT

Hi,

I had to change the null() with a false but then it does what i need!!

Thank you so much!!