Documentation on 'Geoprocessing.ExecuteToolAsync' ?

Question

I'm trying to create a Feature Class using the "Create Feature Class" Geoprocessing tool, and I'm having a heck of a time finding any documentation on how to accomplish this!

nicogis · Answer

try and see this link https://github.com/Esri/arcobjects-sdk-community-samples/tree/master/Net/Geoprocessing/GPExecuteToolsAsync

ThomasEmge · Answer

Your code looks and works fine. The only difference I have is

string toolPath = "CreateFeatureclass_management";

If I use your code as is, then the tool is never executed which I am suspecting is due to the incorrect tool path.

My guess would be that your 'index out of range' error has a different origin.

- Thomas

SteveHenningsgard · Answer

Yeah, that's where I've been looking:

https://pro.arcgis.com/en/pro-app/sdk/api-reference/#topic8624.html

The documentation doesn't really help, although the community sample has gotten me closer (I think?):

https://github.com/Esri/arcgis-pro-sdk-community-samples/edit/master/Geoprocessing/GeoprocessingExecuteAsync/BufferGeome…

I believe the issue I'm having is in creating valid parameters to pass to the tool. I'm getting an 'index out of range' error, and the only array I'm passing is the one generated by MakeValueArray. My test code is as follows:

string toolPath = "data.CreateFeatureclass";

object[] args = {

@c:\data	est2.gdb,

@ProgrammaticallyGeneratedFeatureClass,

@POINT,

null,

@DISABLED,

@ENABLED,

};

var myParams= Geoprocessing.MakeValueArray(args);

var _cts = new System.Threading.CancellationTokenSource();

IGPResult x = await Geoprocessing.ExecuteToolAsync(toolPath, myParams, null, _cts.Token, (event_name, o) =>  // implement delegate and handle events

{

switch (event_name)

{

case "OnValidate": // stop execute if any warnings

if ((o as IGPMessage[]).Any(it => it.Type == GPMessageType.Warning))

_cts.Cancel();

break;

case "OnProgressMessage":

string msg = string.Format("{0}: {1}", new object[] { event_name, (string)o });

System.Windows.MessageBox.Show(msg);

_cts.Cancel();

break;

case "OnProgressPos":

string msg2 = string.Format("{0}: {1} %", new object[] { event_name, (int)o });

System.Windows.MessageBox.Show(msg2);

_cts.Cancel();

break;

}

});