FixedParameter.cs

using System.Collections.Generic;
using System.Threading.Tasks;
using System.Xml;
using Waher.Networking.XMPP.Concentrator;
using Waher.Networking.XMPP.DataForms;
using Waher.Networking.XMPP.DataForms.FieldTypes;
using Waher.Networking.XMPP.DataForms.Layout;
using Waher.Reports.Model.Attributes;
using Waher.Runtime.Language;
using Waher.Script;
 
namespace Waher.Reports.Files.Model.Parameters
{
    public class FixedParameter : ReportParameter
    {
        private readonly ReportStringAttribute[] value;
        private readonly int nrValues;
 
        public FixedParameter(XmlElement Xml)
            : base(Xml)
        {
            List<ReportStringAttribute> Values = new List<ReportStringAttribute>();
 
            foreach (XmlNode N in Xml.ChildNodes)
            {
                if (N is XmlElement E && E.LocalName == "Value")
                    Values.Add(new ReportStringAttribute(E, null));
            }
 
            this.value = Values.ToArray();
            this.nrValues = this.value.Length;
        }
 
        public override async Task PopulateForm(DataForm Parameters, Language Language, Variables Variables)
        {
            ReportParameterAttributes Attributes = await this.GetReportParameterAttributes(Variables);
 
            FixedField Field = new FixedField(Parameters, Attributes.Name, Attributes.Label, Attributes.Required,
                await this.GetValue(Variables), null, Attributes.Description, null, null, string.Empty, 
                false, false, false);
 
            Parameters.Add(Field);
 
            Page Page = Parameters.GetPage(Attributes.Page);
            Page.Add(Field);
        }
 
        private async Task<string[]> GetValue(Variables Variables)
        {
            string[] Value = new string[this.nrValues];
            int i;
 
            for (i = 0; i < this.nrValues; i++)
                Value[i] = await this.value[i].Evaluate(Variables);
 
            return Value;
        }
 
        public override async Task SetParameter(DataForm Parameters, Language Language, bool OnlySetChanged, Variables Variables,
            SetEditableFormResult Result)
        {
            string Name = await this.GetName(Variables);
            Variables[Name] = await this.GetValue(Variables);
        }
 
    }
}