# Change dropdown values based on selection from another tab's dropdown

**URL:** <https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [April 4, 2024, 3:05pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350 "2024-04-04T15:05:33Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 3:05pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/1 "2024-04-04T15:05:33Z")

</div>

i have an embedded view with four tabs representing configurations for four ports of a sensor platform. each tab has a dropdown list of the port's attached sensor type. some are mutually exclusive; ie. if port1 has a pressure sensor, none of the others can have one, and the remaining port's dropdown lists should not display that choice.

i'm not sure how best to go about this. i am learning about message handlers and was wondering if this is a good use-case: sending a configuration payload based on selection, but that feels messy since i'd basically have to create a handler matrix and that doesn't seem like the best way to do this.

any suggestions? i'm hoping there is a simpler solution that i'm just overlooking.

---

<div class="post-metadata">

**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\
**Post date:** [April 4, 2024, 3:09pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/2 "2024-04-04T15:09:24Z")

</div>

Where is the configuration information stored, in a tag, database, PLC, etc.?

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 4, 2024, 3:11pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/3 "2024-04-04T15:11:10Z")

</div>

I would build a "master" list of possibilities in view custom prop, probably as a dataset. Would include columns that express the exclusion constraints.

Then each of the four dropdowns would have their value bidirectionally bound to a view custom prop to make it available to the other props, and would have an expression on its item list that pruned the master list according to the other exclusions. Naturally, I would use my Integration Toolkit functions to make this efficient. (:

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 3:40pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/4 "2024-04-04T15:40:29Z")

</div>

while waiting, this is what i came up with as a binding on the `options` prop for the tab's dropdown:

```python
options = []
	
min1_procType = self.parent.parent.parent.getChild("mInput1-config").getChild("flx-processType").getChild("dd-SET-processType").props.value
	
if value:	#<-- if the port is active, proceed
	if value == 1:
		# to make this goof-proof, check if ANY other input has already selected that sensor type. they are exclusive.
		if min1_procType != 0 or min2_procType != 0 or min3_procType != 0:
			options.append({ "value": 0, "label": "Pressure Sensor" })
	
		return options
			
	if value == 2:
		if min1_procType != 0 or min2_procType != 0 or min3_procType != 0:
			options.append({ "value": 0, "label": "Flow Switch" })
			
		return options
		
return options

```

and since this will run on each tab switch, it seems a good, simple solution. but maybe there's something i'm missing that would cause this to fail? i'm open to better methodology.

EDIT: i plan to export the settings via message handler to the consuming view as well as another message handler to update the bidirectional tag values on the custom.session props.

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 4, 2024, 3:42pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/5 "2024-04-04T15:42:29Z")

</div>

Can you share a list of all options and indicate which ones are exclusive?

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 3:46pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/6 "2024-04-04T15:46:21Z")

</div>

yeah. basically the options are:

1. pressure
2. temp
3. flow switch
4. level switch

only one can exist on any given port, so, for example, i can't have port 1 set to `pressure` and port 2 also set to `pressure`.

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 4, 2024, 3:49pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/7 "2024-04-04T15:49:06Z")

</div>

If there're only four choices, and four dropdowns, you'll never be able to change any. There must also be an "unconfigured" or 'disabled" option to have freedom to change anything.

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 4:01pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/8 "2024-04-04T16:01:00Z")

</div>

ah! that explains what i'm now looking at. thank you! 🙂

can you explain why that is?

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 4:13pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/9 "2024-04-04T16:13:14Z")

</div>

hm. noticing when i choose and option and then change tabs, the option lists aren't recalculating... how do i trigger a binding refresh? i know there's a `system.refreshBinding()` but i'm not sure where to put it to get the job done.

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 4, 2024, 4:15pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/10 "2024-04-04T16:15:47Z")

</div>

Try this view (with my Integration Toolkit installed):

```auto
{
  "custom": {
    "optionsMaster": {
      "$": [
        "ds",
        192,
        1712246364304
      ],
      "$columns": [
        {
          "data": [
            "",
            "pressure",
            "temp",
            "flowsw",
            "levelsw"
          ],
          "name": "code",
          "type": "String"
        },
        {
          "data": [
            "Disabled",
            "Pressure",
            "Temperature",
            "Flow Switch",
            "Level Switch"
          ],
          "name": "display",
          "type": "String"
        },
        {
          "data": [
            true,
            false,
            false,
            false,
            false
          ],
          "name": "multiples",
          "type": "Boolean"
        }
      ]
    },
    "port1": "pressure",
    "port2": "temp",
    "port3": "flowsw",
    "port4": "levelsw"
  },
  "params": {},
  "propConfig": {
    "custom.optionsMaster": {
      "persistent": true
    },
    "custom.port1": {
      "persistent": true
    },
    "custom.port2": {
      "persistent": true
    },
    "custom.port3": {
      "persistent": true
    },
    "custom.port4": {
      "persistent": true
    }
  },
  "props": {},
  "root": {
    "children": [
      {
        "children": [
          {
            "children": [
              {
                "meta": {
                  "name": "Label"
                },
                "position": {
                  "basis": "200px"
                },
                "props": {
                  "style": {
                    "paddingRight": "10px"
                  },
                  "text": "Port #1 Function:",
                  "textStyle": {
                    "textAlign": "right"
                  }
                },
                "type": "ia.display.label"
              },
              {
                "meta": {
                  "name": "Dropdown"
                },
                "position": {
                  "basis": "250px"
                },
                "propConfig": {
                  "props.options": {
                    "binding": {
                      "config": {
                        "expression": "forEach(\n\twhere(\n\t\t{view.custom.optionsMaster},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port2},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port3},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port4}\n\t),\n\tasMap(\n\t\t\u0027value\u0027, it()[\u0027code\u0027],\n\t\t\u0027label\u0027, it()[\u0027display\u0027]\n\t)\n)"
                      },
                      "type": "expr"
                    }
                  },
                  "props.value": {
                    "binding": {
                      "config": {
                        "bidirectional": true,
                        "path": "view.custom.port1"
                      },
                      "type": "property"
                    }
                  }
                },
                "type": "ia.input.dropdown"
              }
            ],
            "meta": {
              "name": "TabRow"
            },
            "position": {
              "basis": "50px"
            },
            "type": "ia.container.flex"
          }
        ],
        "meta": {
          "name": "Tab1Column"
        },
        "props": {
          "direction": "column"
        },
        "type": "ia.container.flex"
      },
      {
        "children": [
          {
            "children": [
              {
                "meta": {
                  "name": "Label"
                },
                "position": {
                  "basis": "200px"
                },
                "props": {
                  "style": {
                    "paddingRight": "10px"
                  },
                  "text": "Port #2 Function:",
                  "textStyle": {
                    "textAlign": "right"
                  }
                },
                "type": "ia.display.label"
              },
              {
                "meta": {
                  "name": "Dropdown"
                },
                "position": {
                  "basis": "250px"
                },
                "propConfig": {
                  "props.options": {
                    "binding": {
                      "config": {
                        "expression": "forEach(\n\twhere(\n\t\t{view.custom.optionsMaster},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port1},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port3},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port4}\n\t),\n\tasMap(\n\t\t\u0027value\u0027, it()[\u0027code\u0027],\n\t\t\u0027label\u0027, it()[\u0027display\u0027]\n\t)\n)"
                      },
                      "type": "expr"
                    }
                  },
                  "props.value": {
                    "binding": {
                      "config": {
                        "bidirectional": true,
                        "path": "view.custom.port2"
                      },
                      "type": "property"
                    }
                  }
                },
                "type": "ia.input.dropdown"
              }
            ],
            "meta": {
              "name": "TabRow"
            },
            "position": {
              "basis": "50px"
            },
            "type": "ia.container.flex"
          }
        ],
        "meta": {
          "name": "Tab2Column"
        },
        "position": {
          "tabIndex": 1
        },
        "props": {
          "direction": "column"
        },
        "type": "ia.container.flex"
      },
      {
        "children": [
          {
            "children": [
              {
                "meta": {
                  "name": "Label"
                },
                "position": {
                  "basis": "200px"
                },
                "props": {
                  "style": {
                    "paddingRight": "10px"
                  },
                  "text": "Port #3 Function:",
                  "textStyle": {
                    "textAlign": "right"
                  }
                },
                "type": "ia.display.label"
              },
              {
                "meta": {
                  "name": "Dropdown"
                },
                "position": {
                  "basis": "250px"
                },
                "propConfig": {
                  "props.options": {
                    "binding": {
                      "config": {
                        "expression": "forEach(\n\twhere(\n\t\t{view.custom.optionsMaster},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port1},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port2},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port4}\n\t),\n\tasMap(\n\t\t\u0027value\u0027, it()[\u0027code\u0027],\n\t\t\u0027label\u0027, it()[\u0027display\u0027]\n\t)\n)"
                      },
                      "type": "expr"
                    }
                  },
                  "props.value": {
                    "binding": {
                      "config": {
                        "bidirectional": true,
                        "path": "view.custom.port3"
                      },
                      "type": "property"
                    }
                  }
                },
                "type": "ia.input.dropdown"
              }
            ],
            "meta": {
              "name": "TabRow"
            },
            "position": {
              "basis": "50px"
            },
            "type": "ia.container.flex"
          }
        ],
        "meta": {
          "name": "Tab3Column"
        },
        "position": {
          "tabIndex": 2
        },
        "props": {
          "direction": "column"
        },
        "type": "ia.container.flex"
      },
      {
        "children": [
          {
            "children": [
              {
                "meta": {
                  "name": "Label"
                },
                "position": {
                  "basis": "200px"
                },
                "props": {
                  "style": {
                    "paddingRight": "10px"
                  },
                  "text": "Port #4 Function:",
                  "textStyle": {
                    "textAlign": "right"
                  }
                },
                "type": "ia.display.label"
              },
              {
                "meta": {
                  "name": "Dropdown"
                },
                "position": {
                  "basis": "250px"
                },
                "propConfig": {
                  "props.options": {
                    "binding": {
                      "config": {
                        "expression": "forEach(\n\twhere(\n\t\t{view.custom.optionsMaster},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port1},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port2},\n\t\tit()[\u0027multiples\u0027] || it()[\u0027code\u0027] !\u003d {view.custom.port3}\n\t),\n\tasMap(\n\t\t\u0027value\u0027, it()[\u0027code\u0027],\n\t\t\u0027label\u0027, it()[\u0027display\u0027]\n\t)\n)"
                      },
                      "type": "expr"
                    }
                  },
                  "props.value": {
                    "binding": {
                      "config": {
                        "bidirectional": true,
                        "path": "view.custom.port4"
                      },
                      "type": "property"
                    }
                  }
                },
                "type": "ia.input.dropdown"
              }
            ],
            "meta": {
              "name": "TabRow"
            },
            "position": {
              "basis": "50px"
            },
            "type": "ia.container.flex"
          }
        ],
        "meta": {
          "name": "Tab4Column"
        },
        "position": {
          "tabIndex": 3
        },
        "props": {
          "direction": "column"
        },
        "type": "ia.container.flex"
      }
    ],
    "meta": {
      "name": "root"
    },
    "props": {
      "currentTabIndex": 3,
      "tabs": [
        "Tab1",
        "Tab2",
        "Tab3",
        "Tab4"
      ]
    },
    "type": "ia.container.tab"
  }
}

```

Edit: For the uninitiated, you can use the above JSON of an entire view by creating a new Perspective view, put the above on the clipboard, SHIFT-right-click on the new view, and select "Paste JSON". The clipboard content will completely replace the new view. The above view is completely stand-alone (other than using Integration Toolkit functions--see below for an alternative).

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 4:19pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/11 "2024-04-04T16:19:27Z")

</div>

_\*gulp_\* okay. not going to pretend i'm not intimidated. 😃 but i'll dive in and give that a go. thanks @pturmel.

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 4, 2024, 4:26pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/12 "2024-04-04T16:26:00Z")

</div>

The magic relies on a bidirectional binding from the dropdown value to a corresponding view custom prop, then an expression binding that prunes the master list of options with my [where()](https://www.automation-pros.com/toolkit/doc/iteration.html#where) function (port #1's option binding shown):

```auto
forEach(
	where(
		{view.custom.optionsMaster},
		it()['multiples'] || it()['code'] != {view.custom.port2},
		it()['multiples'] || it()['code'] != {view.custom.port3},
		it()['multiples'] || it()['code'] != {view.custom.port4}
	),
	asMap(
		'value', it()['code'],
		'label', it()['display']
	)
)

```

Note that each `options` binding is slightly different--each only prunes the settings for the _ **other** _ ports.

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 5:04pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/13 "2024-04-04T17:04:09Z")

</div>

i'm sorry to say, this project doesn't have the time budget to learn this properly. ☹ i can see that @pturmel answer is comprehensive and very flexible, but we just don't have the budget to learn then implement on this project.

is there no other way to simply have `refreshBinding` fire on list change so the bindings on the other tabs update?

EDIT:  
i tried putting this in the `changeScript` on the `currentTabIndex` of the root container in the hopes that when the index changes, it will run this script:

```python
system.refreshBinding('self.parent.parent.getSibling("mInput1-config").getChild("flx-processType").getChild("dd-SET-processType").props.options')
system.refreshBinding('self.parent.parent.getSibling("mInput2-config").getChild("flx-processType").getChild("dd-SET-processType").props.options')
system.refreshBinding('self.parent.parent.getSibling("mInput3-config").getChild("flx-processType").getChild("dd-SET-processType").props.options')
system.refreshBinding('self.parent.parent.getSibling("mInput4-config").getChild("flx-processType").getChild("dd-SET-processType").props.options')

```

but no 💟. i can't tell if it flat out is NOT firing, or if it's malconfigured: either on the wrong prop or what.

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 4, 2024, 5:08pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/14 "2024-04-04T17:08:26Z")

</div>

> [@ian.sebryk](#):
>
> time budget to learn this

I find this surprising. There are eight bindings in the entire view. Four are bidirectional property bindings. The other four are variations on the one I show above. There are **no** scripts **at all**.

Did you drop the JSON into a view to even **look** at it?

(To make the entire thing embeddable, you'd move the `port1`..`port4` view custom props to view in/out parameters.)

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 5:17pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/15 "2024-04-04T17:17:54Z")

</div>

in truth, no. i just saw a wall of code and kinda soft-locked. i didn't realize it was a JSON dump. 🫢 plus, my OCD brain won't let go of the `refreshBinding` problem. but that's a 'me' issue... 🤡 :

the biggest obstacle, truly, is getting approval to install the your required toolset module. 🤷‍♂️

---

<div class="post-metadata">

**Author:** ![pascal.fragnoud](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pascal.fragnoud/32/24728_2.png) [@pascal.fragnoud](https://forum.inductiveautomation.com/u/pascal.fragnoud)\
**Post date:** [April 4, 2024, 5:23pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/16 "2024-04-04T17:23:58Z")

</div>

`system.refreshBinding` ?

try `self.parent.parent.getSibling("mInput4-config").getChild("flx-processType").getChild("dd-SET-processType")`**`.refreshBinding('props.options')`**

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 4, 2024, 5:28pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/17 "2024-04-04T17:28:53Z")

</div>

> [@ian.sebryk](#):
>
> to install the your required

If you can't, use the same architecture, but replace the options bindings with this:

```auto
runScript(
	'someLibrary.prunePortOptions',
	0,
	{view.custom.optionsMaster},
	{view.custom.port2},
	{view.custom.port3},
	{view.custom.port4}
)

```

and put this into `someLibrary`:

```auto
def prunePortOptions(ds, *ports):
	options = []
	for row in system.dataset.toPyDataSet(ds):
		if row['multiples'] or row['code'] not in ports:
			options.append({'value': row['code'], 'label': row['display']})
	return options

```

One script. Everything else is expressions, and the expressions reference everything they need to auto-refresh correctly.

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 7:03pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/18 "2024-04-04T19:03:04Z")

</div>

not letting me paste you views JSON... 😛 i'm running v8.1.27, but i don't suspect that's the issue...

---

<div class="post-metadata">

**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\
**Post date:** [April 4, 2024, 7:09pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/19 "2024-04-04T19:09:35Z")

</div>

Are you holding down SHIFT + right click?

![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/0/1/01d2406588d83451cdec96ba8d5856aa542a5e80.png)

---

<div class="post-metadata">

**Author:** ![ian.sebryk](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ian.sebryk/32/49319_2.png) [@ian.sebryk](https://forum.inductiveautomation.com/u/ian.sebryk)\
**Post date:** [April 4, 2024, 7:19pm UTC](https://forum.inductiveautomation.com/t/change-dropdown-values-based-on-selection-from-another-tabs-dropdown/88350/20 "2024-04-04T19:19:27Z")

</div>

this kind of thing irritates me; _how_ would i have known that? (nothing bad on you) _\*sigh_\* thanks though.

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