# Canvas dropdownControl default value
**URL:** https://discuss.elastic.co/t/canvas-dropdowncontrol-default-value/193114
**Category:** Kibana
**Tags:** canvas
**Created:** [July 31, 2019, 12:20pm UTC](https://discuss.elastic.co/t/canvas-dropdowncontrol-default-value/193114 "2019-07-31T12:20:11Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@BennyInc](https://discuss.elastic.co/u/BennyInc)
#### Post date: [July 31, 2019, 12:20pm UTC](https://discuss.elastic.co/t/canvas-dropdowncontrol-default-value/193114/1 "2019-07-31T12:20:11Z")
I am using the [dropdownControl](https://www.elastic.co/guide/en/kibana/6.8/canvas-common-functions.html#_dropdowncontrol) to select which of our stages I want to see data on:
```auto
csv data="stage
prod
stg
int
test"
| dropdownControl valueColumn="stage" filterColumn="fields.stage"
| render
```
Now I want to set a default value, so that users opening the Canvas for the first time would get a specific value selected. Is that possible?
I would like to combine this with the [urlparam](https://www.elastic.co/guide/en/kibana/6.8/canvas-client-functions.html#_urlparam) function so that I can link users to a specific stage, but still allow them to select a different one later on.
---
### Author:  [@BennyInc](https://discuss.elastic.co/u/BennyInc)
#### Post date: [July 31, 2019, 12:23pm UTC](https://discuss.elastic.co/t/canvas-dropdowncontrol-default-value/193114/2 "2019-07-31T12:23:01Z")
I just checked the Canvas Workpad JSON and see that this stored as part of the object:
```auto
{
"id": "dropdown",
"position": {
"left": 1754.75,
"top": 122.375,
"width": 153,
"height": 50,
"angle": 0,
"parent": null
},
"expression": "csv data=\"stage\nprod\nstg\nint\ntest\"\n| dropdownControl valueColumn=\"stage\" filterColumn=\"fields.stage\"\n| render \n css=\".canvasRenderEl select {\n color: #bbb;\n border-color: #bbb;\n background-color: #000;\n}\n\n.canvasRenderEl svg {\n color: #bbb\n}\"",
"filter": "exactly value=\"test\" column=\"fields.stage\""
}
```
So I guess this is something that is stored within the Canvas workpad, and cannot easily be overridden?
---
### Author:  [@clintandrewhall](https://discuss.elastic.co/u/clintandrewhall)
#### Post date: [July 31, 2019, 7:06pm UTC](https://discuss.elastic.co/t/canvas-dropdowncontrol-default-value/193114/3 "2019-07-31T19:06:37Z")
Good morning, Benny! Yeah, it doesn't look like the [`dropdownControl`](https://github.com/elastic/kibana/blob/master/x-pack/legacy/plugins/canvas/canvas_plugin_src/functions/common/dropdownControl.ts#L59) function allows for a default to be specified, at least at the moment.
I would recommend opening an [enhancement request](https://github.com/elastic/kibana/issues/new?template=Feature_request.md) to add `defaultValue` as an `arg` to `dropdownControl`. That would get [passed on](https://github.com/elastic/kibana/blob/master/x-pack/legacy/plugins/canvas/canvas_plugin_src/renderers/dropdown_filter/index.tsx#L85) to `dropdown_filter` as its `value`, (assuming it was was present in the collection.
Feel free to refer to this post in your enhancement request. Cheers!
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 28, 2019, 7:06pm UTC](https://discuss.elastic.co/t/canvas-dropdowncontrol-default-value/193114/4 "2019-08-28T19:06:37Z")
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