How can I reference the Configuration from CustomDomainCommand Header button?

Question

I'm attempting to use the Header button from

https://developer.m-files.com/Frameworks/Vault-Application-Framework/Configuration/Commands/

But I am unable to reference the variables obtained from the Configuration editors

https://developer.m-files.com/Frameworks/Vault-Application-Framework/Configuration/Editors/

Example below, would expect the MyStringValue from the config to end up in the popup, but the typical this.Configuration.<> doesnt seem to work in this instance.

public class VaultApplication
        : MFiles.VAF.Extensions.ConfigurableVaultApplicationBase<Configuration>

    {


        public readonly CustomDomainCommand cmdHeaderButtonCommand = new CustomDomainCommand
        {
            ID = "cmdHeaderButtonCommand",
            Execute = (c, o) =>
            {
                
                
                string returntest = this.Configuration.MyStringValue;
                o.ShowMessage(""+returntest);


            },
            DisplayName = "Test Contents",
            Locations = new List<ICommandLocation>
            {
            new ButtonBarCommandLocation()
            }
        };

        /// <inheritdoc />
        public override IEnumerable<CustomDomainCommand> GetCommands(IConfigurationRequestContext context)
        {
            return new List<CustomDomainCommand>(base.GetCommands(context))
            {
            this.cmdHeaderButtonCommand,
            };
        }

    }

Craig Hawker · Accepted Answer

This isn't related to the VAF at all, but how fields instantiated like that can access instance members. Instead: move the code to the constructor: public class VaultApplication : MFiles.VAF.Extensions.ConfigurableVaultApplicationBase { public CustomDomainCommand cmdHeaderButtonCommand { get; } public VaultApplication() { this.cmdHeaderButtonCommand = new CustomDomainCommand { ID = "cmdHeaderButtonCommand", Execute = (c, o) => { string returntest = this.Configuration.MyStringValue; o.ShowMessage(""+returntest); }, DisplayName = "Test Contents", Locations = new List { new ButtonBarCommandLocation() } } }; /// public override IEnumerable GetCommands(IConfigurationRequestContext context) { return new List(base.GetCommands(context)) { this.cmdHeaderButtonCommand, }; } } An alternative approach is to use the new functionality recently added to the Extensions , which cuts out a lot of that boilerplate: public class VaultApplication : MFiles.VAF.Extensions.ConfigurableVaultApplicationBase { [CustomCommand("Test Contents")] [ButtonBarCommandLocation] public void SayHello ( IConfigurationRequestContext context, ClientOperations operations ) { string returntest = this.Configuration.MyStringValue; operations.ShowMessage(""+returntest); } }

How can I reference the Configuration from CustomDomainCommand Header button?

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