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Create Extension just like ArcMap

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1
10-20-2022 05:44 AM
mody_buchbinder
by
Occasional Contributor III
‎10-20-2022 05:44 AM

I am developing an Pro application that will control edit events.

I would like to give option to turn of this option.

In ArcMap I would develop code that implement IExtension and IExtensioConfig then the extension "remember" if it is on or off. If it is on it runs the startup. If I am turning it off it will un subscribe to the events.

Here is the docs for ArcMap  https://desktop.arcgis.com/en/arcobjects/latest/net/webframe.htm#AppFrameworkExtensionHowTo.htm 

Moving to Pro I used this example: https://github.com/Esri/arcgis-pro-sdk-community-samples/tree/master/Framework/Licensing 

I do not have a license for the extension.

I see two problems. First I do not see startup method - what code is running when extension exists?

Then the extension is always turned off, I could not find a way to remember the last state.

 

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1 Reply
FridjofSchmidt
by
Occasional Contributor
‎10-20-2022 06:32 AM

You can implement IExtensionConfig in your Module class and activate/deactivate your events in the State property setter:

public ExtensionState State
{
	get { return this._state; }
	set
	{
		this._state = value;
		if (value == ExtensionState.Disabled) this.UnwireEvents();
		else if (value == ExtensionState.Enabled) this.WireEvents();
	}
}

If you want to persist your extension state in the project, you can overwrite the OnReadSettingsAsync and OnWriteSettingsAsync methods:

protected override Task OnReadSettingsAsync(ModuleSettingsReader settings)
{
	if (null == settings) return Task.FromResult(0);
	var value = settings.Get("MyExtensionState");
	if (value != null && value is string s && Enum.TryParse(s, out ExtensionState extensionState))
	{
		this.State = extensionState;
	}

	return Task.FromResult(0);
}

protected override Task OnWriteSettingsAsync(ModuleSettingsWriter settings)
{
	settings.Add("MyExtensionState", this.State.ToString());
	return Task.FromResult(0);
}

See also https://github.com/Esri/arcgis-pro-sdk/wiki/ProGuide-Custom-settings. This also explains how to store settings at the application/user level.

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