topic Re: How to clear dropdown on change? in Splunk Search

How to clear dropdown on change?

zoebanning — Thu, 04 Nov 2021 06:31:49 GMT

Hello Splunk Community,

I have created a dashboard with 3 dropdowns; Select System, Select Environment, Select Period (time).
Note: each system has named their environments the same i.e. Production, UAT etc.

I seem to be having a problem when i have already selected all dropdowns and metrics load, then i change the System dropdown, the Environment dropdown seems to update but there is 1 duplicate (i.e. in pervious search I selected 'Production' environment and now I have 2 Production environments assuming one is for each system).

Can someone assist me to figure out how to clear the environment dropdown when i change the system? I have tried to play around with the settings within the UI but no luck.

Is there something i need to change in my source code?

<fieldset submitButton="false" autoRun="false">
<input type="dropdown" token="CMDB_CI_Name" searchWhenChanged="true">
<label>Select IT Services</label>
<fieldForLabel>CMDB_CI_Name</fieldForLabel>
<fieldForValue>CMDB_CI_Name</fieldForValue>
<search>
<query>|inputlookup list.csv | fields CMDB_CI_Name | dedup CMDB_CI_Name</query>
<earliest>-4h@m</earliest>
<latest>now</latest>
</search>
</input>
<input type="dropdown" token="env" searchWhenChanged="true">
<label>Select Environment</label>
<change>
<set token="tokEnvironment">$label$</set>
</change>
<fieldForLabel>Env_Purpose</fieldForLabel>
<fieldForValue>Env_Infra</fieldForValue>
<search>
<query>|inputlookup list.csv | search CMDB_CI_Name=$CMDB_CI_Name$ | fields Env_Purpose, Env_Infra
| dedup Env_Purpose, Env_Infra</query>
</search>
</input>
<input type="time" token="time_token" searchWhenChanged="true">
<label>Time Period</label>
<default>
<earliest>-7d@h</earliest>
<latest>now</latest>
</default>

Re: How to clear dropdown on change?

gcusello — Thu, 04 Nov 2021 07:08:02 GMT

Hi @zoebanning,

please try this approach to reset all tokens.

<input type="radio" token="resetTokens" searchWhenChanged="true"> <label></label> <choice value="reset">Reset Inputs</choice> <choice value="retain">Retain</choice> <default>retain</default> <change> <condition value="reset"> <unset token="token1"></unset> <unset token="token2"></unset> <unset token="token3"></unset> <set token="resetTokens">retain</set> </condition> </change> </input>

add it to your inputs.

Ciao.

Giuseppe

Re: How to clear dropdown on change?

zoebanning — Thu, 04 Nov 2021 23:10:56 GMT

Hi Giuseppe,

I have just tried this out but i don't want an additional filter that users will need to select to refresh. Is there any other way that doesn't require an additional filter?

Thanks,

Zoe

Re: How to clear dropdown on change?

gcusello — Fri, 05 Nov 2021 07:45:40 GMT

Hi @zoebanning,

this is the only solution I found.

Ciao and happy splunking.

Giuseppe