# Writing to a tag parameter "Documentation

**URL:** <https://forum.inductiveautomation.com/t/writing-to-a-tag-parameter-documentation/97026>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [October 9, 2024, 2:58pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-tag-parameter-documentation/97026 "2024-10-09T14:58:34Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![jim\_zuppan](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jim\_zuppan](https://forum.inductiveautomation.com/u/jim_zuppan)\
**Post date:** [October 9, 2024, 2:58pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-tag-parameter-documentation/97026/1 "2024-10-09T14:58:34Z")

</div>

I'm looking for away to write and read the parameter Documentation with the definition of a tag. I found the following but there are a few things that seem messy if you will.

I’m looking for help on this topic, there might be a better path to help but I thought perhaps y’all could lead a hand or point me in the right direction. I’d like to be able to read and write to this parameter known as documentation.

I’ve found this in the documentation:

TagPath path = new BasicTagPath("", List.of("path", "to", "tag"), WellKnownTagProps.Documentation);  
gatewayContext.getTagManager().getTagProvider("default").readAsync(List.of(path), SecurityContext.systemContext()).get().get(0);

Any help would be appreciated

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [October 9, 2024, 3:08pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-tag-parameter-documentation/97026/2 "2024-10-09T15:08:54Z")

</div>

You're posting Java code - is this something you're trying to do from a module?

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<div class="post-metadata">

**Author:** ![MMaynard](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mmaynard/32/3366_2.png) [@MMaynard](https://forum.inductiveautomation.com/u/MMaynard)\
**Post date:** [October 9, 2024, 3:09pm UTC](https://forum.inductiveautomation.com/t/writing-to-a-tag-parameter-documentation/97026/3 "2024-10-09T15:09:06Z")

</div>

You can read and write the .Documentation property directly.

```python
tPath = '[default]Path/To/Tag.Documentation'
docTowrite = 'Blah Blah This is the documentation tag'
system.tag.writeBlocking(tPath,docTowrite)
docVal = system.tag.readBlocking(tPath)[0].value
print docVal

```