Use python script tool from .Net ArcGIS Pro

[MatthewDriscoll]

Using a C# .Net add-in I need to run a custom python script tool from my toolbox from with-in the map in Pro.   The sample "CallScriptFromNet" will not work because it runs the Python script from outside of the Pro environment.  I have things in the script that uses many layers from the "CURRENT" map so it fails running it the way the sample shows. The script works great when I run it from the toolbox, but I cannot figure out how to run it from the .Net add-in. I am thinking I need to use some sort of combination of getting a Geoprocessing Project Item and Executing it?  

[KatherineDalton]

Hi Matt,

I'm going to mention the Pro SDK group so they should see your question and can hopefully help out! https://community.esri.com/groups/arcgis-pro-sdk?sr=search&searchId=af02e762-8402-4f43-9f22-3fed9887...‌

Katy

[NobbirAhmed · Accepted solution]

Put the toolbox and python script in a folder just under the .Net project folder. You can then refer to the path of the toolbox from the solution.

[MatthewDriscoll]

Is there a way to use a relative path to that folder?   Not everyone I share the project with will have the same file, folder, directories.

Replace the "string tool_path" with a relative path. 

public async Task<IGPResult> ExecuteModel()
 {
     string tool_path = @"C:\Test_Folder\Base_Maps\Base_Maps.tbx\TestScript";

     var parameters = Geoprocessing.MakeValueArray();

     IGPResult gp_result = await Geoprocessing.ExecuteToolAsync(tool_path, parameters);

     Geoprocessing.ShowMessageBox(gp_result.Messages, "GP Messages", gp_result.IsFailed ? GPMessageBoxStyle.Error : GPMessageBoxStyle.Default);

     return gp_result
 }

;

[NobbirAhmed]

Assuming you are trying to deploy a .Net Add-in, you can use System.IO.Directory.GetCurrentDirectory() method to get the path of the ArcGIS Pro Project where the default geodatabase and the toolbox reside:

string spath = System.IO.Directory.GetCurrentDirectory();

The Project folder looks something like this:

For this particular folder structure, the spath value (under C: directory) will be:

C:\temp\AddinMovedHere\OneDown\TwoDown

From there, using C# (or VB) concatenating functions, you can derive other paths such as to Geodatabase and Toolbox.

[gauthierverlin]

Hello,

I found your topic after asking a kind of similar question here :

Use python script tool from NET Arcgis Pro 

I tried to put the python script in a folder just under the .Net project folder but I keep getting the error.

If you have any clue about it, it would help me a lot.

Best regards

Gauthier

[NobbirAhmed]

Hi Gauthier,

Most probably it’s a bug – I have also seen this error yesterday ☹ Could you please do this and let me know what happens?

Run the same python code in Pro app’s Python Window while keeping the point layer displayed.

[NobbirAhmed]

The error returned is the correct error as when a table is open in a Map its schema is locked (AddField is trying to change the schema) for any external program (such as a Python script). 

There is a screen shot of the error message (ERROR 000464) here:

https://community.esri.com/thread/232293-use-python-script-tool-from-net-arcgis-pro

[gauthierverlin]

Hello,

The script does work if I run it in the python window from Arcgis Pro while the point layer is displayed.

Is there a way to unlock the schema ?

[NobbirAhmed]

You can change schema from within the app (such as from Python window) as the app knows the state.

But, if you are outside of app, such as in a python script (called from a .Net Addin) then you are foreign to the app ☹

I’ll play with your script and get back to you ☺