# Ignition **URL:** https://forum.inductiveautomation.com/c/ignition/6.md?page=912 [Latest](https://forum.inductiveautomation.com/latest.md) · [Categories](https://forum.inductiveautomation.com/categories.md) · [Tags](https://forum.inductiveautomation.com/tags.md) **Page:** 913 --- ## [Error Launching java.lang.NullPointerException](https://forum.inductiveautomation.com/t/error-launching-java-lang-nullpointerexception/41491)
**Author:** [@Apisit\_Chuencharoen](https://forum.inductiveautomation.com/u/Apisit_Chuencharoen)\ **Replies:** 5\ **Last updated:** [December 28, 2021, 12:08am UTC](https://forum.inductiveautomation.com/t/error-launching-java-lang-nullpointerexception/41491 "2021-12-28T00:08:33Z")
Hello, One of our user cannot launch Ignition Vision client but he can launch Ignition designer. Error is java.lang.NullPointerException (as pitctured below). We try to uninstall and re-install Ignition vision client bu… --- ## [Numeric Entry Overriding PLC value with default](https://forum.inductiveautomation.com/t/numeric-entry-overriding-plc-value-with-default/54411)
**Author:** [@david.gillbee](https://forum.inductiveautomation.com/u/david.gillbee)\ **Replies:** 6\ **Last updated:** [December 27, 2021, 5:45pm UTC](https://forum.inductiveautomation.com/t/numeric-entry-overriding-plc-value-with-default/54411 "2021-12-27T17:45:18Z")
I have embedded a numeric entry object into a perspective view which i use as a generic setpoint entry. I am seeing a bug where when i embed this setpoint view into a page it will somtimes override my PLC value with the … --- ## [Vision Table propertyChange](https://forum.inductiveautomation.com/t/vision-table-propertychange/54456)
**Author:** [@iscrac](https://forum.inductiveautomation.com/u/iscrac)\ **Replies:** 4\ **Last updated:** [December 27, 2021, 4:16pm UTC](https://forum.inductiveautomation.com/t/vision-table-propertychange/54456 "2021-12-27T16:16:38Z")
Hi, Ignition v.8.1.12 Is it possible somehow to catch propertyChange just once? when I print event.propertyName, so it gives me a lot of "data" and some other properties were changed many times: selectedColumn data … --- ## [Utilize only the columns portion of power chart in perspective](https://forum.inductiveautomation.com/t/utilize-only-the-columns-portion-of-power-chart-in-perspective/54457)
**Author:** [@hsw1217](https://forum.inductiveautomation.com/u/hsw1217)\ **Replies:** 1\ **Last updated:** [December 27, 2021, 3:52pm UTC](https://forum.inductiveautomation.com/t/utilize-only-the-columns-portion-of-power-chart-in-perspective/54457 "2021-12-27T15:52:59Z")
Is there a way to remove the chart portion of the power chart in perspective so that only the columns/data table is left. I’m sure this seems like a round-about way of creating a data table, but the design and format of … --- ## [Perspective Popup with Dynamic Height/Width](https://forum.inductiveautomation.com/t/perspective-popup-with-dynamic-height-width/39247)
**Author:** [@bradley.falzon](https://forum.inductiveautomation.com/u/bradley.falzon)\ **Replies:** 1\ **Last updated:** [October 1, 2020, 2:30pm UTC](https://forum.inductiveautomation.com/t/perspective-popup-with-dynamic-height-width/39247 "2020-10-01T14:30:47Z")
I have a generic view for setting set points, which also shows recent changes to those set points, shown in a popup. I have a popup when called with particular parameters, allows you to change set points and also shows … --- ## [HTML5 canvas - amChart5](https://forum.inductiveautomation.com/t/html5-canvas-amchart5/51069)
**Author:** [@eberly88](https://forum.inductiveautomation.com/u/eberly88)\ **Replies:** 1\ **Last updated:** [December 26, 2021, 9:29am UTC](https://forum.inductiveautomation.com/t/html5-canvas-amchart5/51069 "2021-12-26T09:29:51Z")
Are there plans to upgrade ignitions vector-based amChart4 components to amChart5 raster-based charts when it’s released? --- ## [Upgrade from 8.1.1 to 8.1.10 - Any issues?](https://forum.inductiveautomation.com/t/upgrade-from-8-1-1-to-8-1-10-any-issues/53662)
**Author:** [@sharmila.belvalkar](https://forum.inductiveautomation.com/u/sharmila.belvalkar)\ **Replies:** 5\ **Last updated:** [December 25, 2021, 4:04pm UTC](https://forum.inductiveautomation.com/t/upgrade-from-8-1-1-to-8-1-10-any-issues/53662 "2021-12-25T16:04:03Z")
Does anyone have any input for this upgrade with regards to issues, considerations to prevent issues etc? Thanks --- ## [OPC Tag overlay](https://forum.inductiveautomation.com/t/opc-tag-overlay/54449)
**Author:** [@PRAMANJ](https://forum.inductiveautomation.com/u/PRAMANJ)\ **Replies:** 1\ **Last updated:** [December 25, 2021, 2:55pm UTC](https://forum.inductiveautomation.com/t/opc-tag-overlay/54449 "2021-12-25T14:55:41Z")
Under what circumstances does the OPC tags in CoreSimulator stop updating? How to reset it? It was working fine till some hours ago! All components using these tags are overlaid ! --- ## [What is the answer to perspective templates?](https://forum.inductiveautomation.com/t/what-is-the-answer-to-perspective-templates/54259)
**Author:** [@franklepkowski](https://forum.inductiveautomation.com/u/franklepkowski)\ **Replies:** 15\ **Last updated:** [December 25, 2021, 11:07am UTC](https://forum.inductiveautomation.com/t/what-is-the-answer-to-perspective-templates/54259 "2021-12-25T11:07:40Z")
Hello All, What is the de facto for using templates in Perspective? Logical answer is embedded views, however these degrade HMI performance and create a lot of latency. We have been staying away from embedded views alto… --- ## [Focus on Text Box in Embedded view does not fire](https://forum.inductiveautomation.com/t/focus-on-text-box-in-embedded-view-does-not-fire/54286)
**Author:** [@stefan.marcin74](https://forum.inductiveautomation.com/u/stefan.marcin74)\ **Replies:** 7\ **Last updated:** [December 25, 2021, 6:19am UTC](https://forum.inductiveautomation.com/t/focus-on-text-box-in-embedded-view-does-not-fire/54286 "2021-12-25T06:19:37Z")
Coming from # Focus on Text Box Loses Cursor - is there any better solution then specifying Sleep function ? Its the worst way to solve problem like this. Or can anyone explain what the flow of execution of scripts in em… --- ## [Perspective map layers](https://forum.inductiveautomation.com/t/perspective-map-layers/53735)
**Author:** [@lachguerabdallah](https://forum.inductiveautomation.com/u/lachguerabdallah)\ **Replies:** 1\ **Last updated:** [December 25, 2021, 12:20am UTC](https://forum.inductiveautomation.com/t/perspective-map-layers/53735 "2021-12-25T00:20:50Z")
Hello, I would like to create a map of temperature, precipitation, wind direction like the maps I show below using the perspective map. Has someone done something similar? --- ## [Translation manager import quirk](https://forum.inductiveautomation.com/t/translation-manager-import-quirk/54430)
**Author:** [@ShaneH](https://forum.inductiveautomation.com/u/ShaneH)\ **Replies:** 3\ **Last updated:** [December 23, 2021, 4:16pm UTC](https://forum.inductiveautomation.com/t/translation-manager-import-quirk/54430 "2021-12-23T16:16:05Z")
Perspective 8.1.11 I exported my translation terms to ‘my\_terms\_es\_US.PROPERTIES’ I made a copy to ‘es\_US.PROPERTIES’ – note I removed the prefix! I made some hand edits, then tried to re-import it. It would only im… --- ## [Perspective Integer found String Expected](https://forum.inductiveautomation.com/t/perspective-integer-found-string-expected/36546)
**Author:** [@kyle.lawson](https://forum.inductiveautomation.com/u/kyle.lawson)\ **Replies:** 13\ **Last updated:** [December 23, 2021, 4:10pm UTC](https://forum.inductiveautomation.com/t/perspective-integer-found-string-expected/36546 "2021-12-23T16:10:11Z")
Hello, How can I not get an error when an integer is entered on a text field? Currently I am getting an “integer found, string expected” error. Sometimes the user will enter just an integer and other times it will be … --- ## [Tag gateway initialization](https://forum.inductiveautomation.com/t/tag-gateway-initialization/54398)
**Author:** [@betti.francesco](https://forum.inductiveautomation.com/u/betti.francesco)\ **Replies:** 4\ **Last updated:** [December 23, 2021, 11:03am UTC](https://forum.inductiveautomation.com/t/tag-gateway-initialization/54398 "2021-12-23T11:03:00Z")
In a Perspective project I have some global state variables leaning back on some memory tags. I need those tags to be initialized on they’re default state when the gateway restarts: I was thinking to implement the initia… --- ## [Tag Path dependent on System Name](https://forum.inductiveautomation.com/t/tag-path-dependent-on-system-name/54412)
**Author:** [@Bryan\_Mason](https://forum.inductiveautomation.com/u/Bryan_Mason)\ **Replies:** 1\ **Last updated:** [December 23, 2021, 5:09am UTC](https://forum.inductiveautomation.com/t/tag-path-dependent-on-system-name/54412 "2021-12-23T05:09:49Z")
I was trying to export views from one gateway to another and discovered that my power chart was broken because the Tag Path (under Edit Pens) depends on the name of the gateway to find the correct OPC path. For example, … --- ## [getSelectedRows](https://forum.inductiveautomation.com/t/getselectedrows/54420)
**Author:** [@Johnny\_Li1](https://forum.inductiveautomation.com/u/Johnny_Li1)\ **Replies:** 5\ **Last updated:** [December 23, 2021, 4:54am UTC](https://forum.inductiveautomation.com/t/getselectedrows/54420 "2021-12-23T04:54:21Z")
Hi guys I am just wondering how do you use getSelectedRows()? How to fix this issue ? many thanks Johnny --- ## [How to scroll to the highlighed row of the table](https://forum.inductiveautomation.com/t/how-to-scroll-to-the-highlighed-row-of-the-table/54039)
**Author:** [@manjuyadav95.m](https://forum.inductiveautomation.com/u/manjuyadav95.m)\ **Replies:** 40\ **Last updated:** [December 23, 2021, 4:46am UTC](https://forum.inductiveautomation.com/t/how-to-scroll-to-the-highlighed-row-of-the-table/54039 "2021-12-23T04:46:39Z")
@cmallonee @victordcq I referred to this below link and the given solution worked out but to see the highlighted row in the table sometimes I need to check by scrolling down ..how can I make it top of the list or auto-s… --- ## [No default tag folders](https://forum.inductiveautomation.com/t/no-default-tag-folders/54418)
**Author:** [@John\_Coleman](https://forum.inductiveautomation.com/u/John_Coleman)\ **Replies:** 1\ **Last updated:** [December 23, 2021, 12:26am UTC](https://forum.inductiveautomation.com/t/no-default-tag-folders/54418 "2021-12-23T00:26:29Z")
Hi, I’m new and working my way through the videos. I Installed 8.1 gateway, and made connections to 2 ControlLogix processors successfully, connected to a SQL server, installed the designer, started a project. So far s… --- ## [Popup window to db.refresh table on main window?](https://forum.inductiveautomation.com/t/popup-window-to-db-refresh-table-on-main-window/7231)
**Author:** [@matkent](https://forum.inductiveautomation.com/u/matkent)\ **Replies:** 4\ **Last updated:** [December 22, 2021, 11:21pm UTC](https://forum.inductiveautomation.com/t/popup-window-to-db-refresh-table-on-main-window/7231 "2021-12-22T23:21:58Z")
Hello, I have a table on the main window which reflects a db. I have a button which opens a popup window with input fields (just a form) etc for adding to the DB (table on the main window). Once all the fields are f… --- ## [Object has no attribute 'getComponent' in actionPerform script](https://forum.inductiveautomation.com/t/object-has-no-attribute-getcomponent-in-actionperform-script/54381)
**Author:** [@Johnny\_Li1](https://forum.inductiveautomation.com/u/Johnny_Li1)\ **Replies:** 2\ **Last updated:** [December 22, 2021, 11:15pm UTC](https://forum.inductiveautomation.com/t/object-has-no-attribute-getcomponent-in-actionperform-script/54381 "2021-12-22T23:15:27Z")
Hi guys I am current working on a button that has a script as shown below . I am just wondering is it possible to use getComponent from onActionPerformed event ? many thanks --- ## [Can I use a query within a Tag event script?](https://forum.inductiveautomation.com/t/can-i-use-a-query-within-a-tag-event-script/54197)
**Author:** [@Connor\_Moore](https://forum.inductiveautomation.com/u/Connor_Moore)\ **Replies:** 15\ **Last updated:** [December 22, 2021, 8:59pm UTC](https://forum.inductiveautomation.com/t/can-i-use-a-query-within-a-tag-event-script/54197 "2021-12-22T20:59:22Z")
I have a measuring tool that pushes measurements to tags in my system and I need to check them against a database. What is the syntax to put my query in this Tag event script? The query has a job name that will be sent t… --- ## [Create applications or buttons for use on mobile devices](https://forum.inductiveautomation.com/t/create-applications-or-buttons-for-use-on-mobile-devices/54405)
**Author:** [@antonio.sanchez](https://forum.inductiveautomation.com/u/antonio.sanchez)\ **Replies:** 1\ **Last updated:** [December 22, 2021, 7:28pm UTC](https://forum.inductiveautomation.com/t/create-applications-or-buttons-for-use-on-mobile-devices/54405 "2021-12-22T19:28:58Z")
hello good morning everyone I have a question in ignition is there any tool to create an app or window that can run on mobile devices? --- ## [\[feature-256\]PostgreSQL history query performance](https://forum.inductiveautomation.com/t/feature-256-postgresql-history-query-performance/37895)
**Author:** [@cristihcd](https://forum.inductiveautomation.com/u/cristihcd)\ **Replies:** 7\ **Last updated:** [December 22, 2021, 5:34pm UTC](https://forum.inductiveautomation.com/t/feature-256-postgresql-history-query-performance/37895 "2021-12-22T17:34:35Z")
Hello, tldr: With PostgreSQL, changing the historian query for multiple tags to use IN (tagid1, tagid2, …) instead of multiple OR s speeds up the query execution 320 times. Is it possible to change the query to use IN (… --- ## [How to treat an empty dataset as zero for sum() in Expression](https://forum.inductiveautomation.com/t/how-to-treat-an-empty-dataset-as-zero-for-sum-in-expression/54366)
**Author:** [@Troy](https://forum.inductiveautomation.com/u/Troy)\ **Replies:** 4\ **Last updated:** [December 22, 2021, 4:29pm UTC](https://forum.inductiveautomation.com/t/how-to-treat-an-empty-dataset-as-zero-for-sum-in-expression/54366 "2021-12-22T16:29:02Z")
After upgrading from 7.9.3 to 7.9.18, I’ve been seeing some errors in our Expression code. “Error evaluating tag: Expression left operand is null.” We have a UDT with several query tags, sometimes there are no rows in … --- ## [Dropdown selected value property returns array format in perspective](https://forum.inductiveautomation.com/t/dropdown-selected-value-property-returns-array-format-in-perspective/54347)
**Author:** [@Anita.Shinde](https://forum.inductiveautomation.com/u/Anita.Shinde)\ **Replies:** 6\ **Last updated:** [December 22, 2021, 4:07pm UTC](https://forum.inductiveautomation.com/t/dropdown-selected-value-property-returns-array-format-in-perspective/54347 "2021-12-22T16:07:24Z")
Hi, I am using one multiselect dropdown. Through scripting I have created one list and binding that list to multiselect dropdown options. Now I want to check the selected value of multiselect dropdown, So on change sc… --- ## [Message handler not refreshing property](https://forum.inductiveautomation.com/t/message-handler-not-refreshing-property/54394)
**Author:** [@Resistor](https://forum.inductiveautomation.com/u/Resistor)\ **Replies:** 5\ **Last updated:** [December 22, 2021, 3:45pm UTC](https://forum.inductiveautomation.com/t/message-handler-not-refreshing-property/54394 "2021-12-22T15:45:13Z")
I have a small table with a counter for manufactured parts. I want to restart a count on pressing the button. e.g. it is 3 pm when the button is pressed, so the table should refresh / reset to 0 and start counting up … --- ## [Call opc-ua method](https://forum.inductiveautomation.com/t/call-opc-ua-method/54399)
**Author:** [@francesco.patea](https://forum.inductiveautomation.com/u/francesco.patea)\ **Replies:** 2\ **Last updated:** [December 22, 2021, 3:40pm UTC](https://forum.inductiveautomation.com/t/call-opc-ua-method/54399 "2021-12-22T15:40:11Z")
Hi all, I try to send a file to a machine with opc-ua method. the method is: Method node “WriteProgram“: To transfer a program from client → machine BrowseName = “/ProgramAdministration/WriteProgram“ DisplayName = “… --- ## [Perspective AlarmStatusTable Timezone](https://forum.inductiveautomation.com/t/perspective-alarmstatustable-timezone/42012)
**Author:** [@bradley.falzon](https://forum.inductiveautomation.com/u/bradley.falzon)\ **Replies:** 1\ **Last updated:** [December 22, 2021, 2:29pm UTC](https://forum.inductiveautomation.com/t/perspective-alarmstatustable-timezone/42012 "2021-12-22T14:29:03Z")
Currently running Ignition 8.1.1, on a server in the Australia/Adelaide timezone, connecting to databases (where the alarms are stored) also configured in the Australia/Adelaide region. Databases are MariaDB using the DA… --- ## [How to run Script faster](https://forum.inductiveautomation.com/t/how-to-run-script-faster/54343)
**Author:** [@Gaurav.Shitole](https://forum.inductiveautomation.com/u/Gaurav.Shitole)\ **Replies:** 15\ **Last updated:** [December 22, 2021, 2:15pm UTC](https://forum.inductiveautomation.com/t/how-to-run-script-faster/54343 "2021-12-22T14:15:03Z")
Hello all, I need a help to stop freezing my screen! Before I begin I did try to achieve result with invokeAsync but still facing some delay. Scenario: Okay so I am pulling a data from DB\_1\_Connection having more tha… --- ## [Docker all gateways notify "disk full"](https://forum.inductiveautomation.com/t/docker-all-gateways-notify-disk-full/54351)
**Author:** [@abiesbiogas](https://forum.inductiveautomation.com/u/abiesbiogas)\ **Replies:** 3\ **Last updated:** [December 22, 2021, 10:05am UTC](https://forum.inductiveautomation.com/t/docker-all-gateways-notify-disk-full/54351 "2021-12-22T10:05:14Z")
Hi all, we’ve succesfully used Ignition in docker containers for the last couple of years but now we have to front this issue: suddenly all containers have become corrupted and after recreating (just a few) all of them… [Previous page](https://forum.inductiveautomation.com/c/ignition/6.md?page=911) [Next page](https://forum.inductiveautomation.com/c/ignition/6.md?page=913)