SearchForThingsDialog.xaml.cs

using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
 
namespace Waher.Client.WPF.Dialogs.IoT
{
    public enum Operator
    {
        Equality = 0,
        NonEquality = 1,
        GreaterThan = 2,
        GreaterThanOrEqualTo = 3,
        LesserThan = 4,
        LesserThanOrEqualTo = 5,
        InRange = 6,
        NotInRange = 7,
        Wildcard = 8,
        RegularExpression = 9
    }
 
    public class Rule
    {
        public string Tag;
        public Operator Operator;
        public string Value1;
        public string Value2;
    }
 
    public partial class SearchForThingsDialog : Window
    {
        private int nrRules = 1;
        private int ruleNr = 1;
 
        public SearchForThingsDialog()
        {
            this.InitializeComponent();
 
            this.Field1.Focus();
        }
 
        private void OkButton_Click(object Sender, RoutedEventArgs e)
        {
            this.DialogResult = true;
        }
 
        private void CancelButton_Click(object Sender, RoutedEventArgs e)
        {
            this.DialogResult = false;
        }
 
        private void AddButton_Click(object Sender, RoutedEventArgs e)
        {
            string Suffix = (++this.ruleNr).ToString();
 
            StackPanel Panel = new StackPanel()
            {
                Orientation = Orientation.Horizontal,
                Margin = new Thickness(0, 0, 0, 8)
            };
 
            ComboBox Field = new ComboBox()
            {
                Name = "Field" + Suffix,
                Width = 150,
                IsEditable = true,
                ToolTip = "Select field to searh on."
            };
 
            Field.Items.Add(new ComboBoxItem() { Tag = "ALT", Content = "Altitude (ALT)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "APT", Content = "Apartment (APT)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "AREA", Content = "Area (AREA)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "BLD", Content = "Building (BLD)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "CITY", Content = "City (CITY)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "CLASS", Content = "Class (CLASS)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "COUNTRY", Content = "Country (COUNTRY)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "LAT", Content = "Latitude (LAT)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "LONG", Content = "Longitude (LONG)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "MAN", Content = "Manufacturer (MAN)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "MLOC", Content = "Meter Location (MLOC)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "MNR", Content = "Meter Number (MNR)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "MODEL", Content = "Model (MODEL)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "NAME", Content = "Name (NAME)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "PURL", Content = "Product URL (PURL)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "REGION", Content = "Region (REGION)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "ROOM", Content = "Room (ROOM)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "SN", Content = "Serial Number (SN)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "STREET", Content = "Street (STREET)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "STREETNR", Content = "Street Number (STREETNR)" });
            Field.Items.Add(new ComboBoxItem() { Tag = "V", Content = "Version (V)" });
 
            StackPanel Panel2 = new StackPanel()
            {
                Orientation = Orientation.Vertical
            };
 
            Panel2.Children.Add(new Label() { Content = "Tag:" });
            Panel2.Children.Add(Field);
            Panel.Children.Add(Panel2);
 
            ComboBox Operator = new ComboBox()
            {
                Name = "Operator" + Suffix,
                Width = 184,
                ToolTip = "Select search operator.",
                SelectedIndex = 0
            };
 
            Operator.Items.Add(new ComboBoxItem() { Tag = "=", Content = "Equality (=)" });
            Operator.Items.Add(new ComboBoxItem() { Tag = "<>", Content = "Non-equality (<>)" });
            Operator.Items.Add(new ComboBoxItem() { Tag = ">", Content = "Greater than (>)" });
            Operator.Items.Add(new ComboBoxItem() { Tag = ">=", Content = "Greater than or equal to (>=)" });
            Operator.Items.Add(new ComboBoxItem() { Tag = "<", Content = "Lesser than (<)" });
            Operator.Items.Add(new ComboBoxItem() { Tag = "<=", Content = "Lesser than or equal to (<=)" });
            Operator.Items.Add(new ComboBoxItem() { Tag = "InRange", Content = "In range" });
            Operator.Items.Add(new ComboBoxItem() { Tag = "NotInRange", Content = "Not in range" });
            Operator.Items.Add(new ComboBoxItem() { Tag = "Wildcard", Content = "Wildcard" });
            Operator.Items.Add(new ComboBoxItem() { Tag = "RegularExpression", Content = "Regular Expression" });
 
            Operator.SelectionChanged += this.Operator_SelectionChanged;
 
            Panel2 = new StackPanel()
            {
                Orientation = Orientation.Vertical,
                Margin = new Thickness(16, 0, 0, 0)
            };
 
            Panel2.Children.Add(new Label() { Content = "Operator:" });
            Panel2.Children.Add(Operator);
            Panel.Children.Add(Panel2);
 
            TextBox Value1 = new TextBox()
            {
                Name = "Value" + Suffix + "_1",
                Width = 184,
                ToolTip = "Select value to search on.",
                Height = this.Operator1.ActualHeight
            };
 
            TextBox Value2 = new TextBox()
            {
                Name = "Value" + Suffix + "_2",
                Width = 84,
                ToolTip = "Select value to search to.",
                Height = this.Operator1.ActualHeight
            };
 
            Panel2 = new StackPanel()
            {
                Orientation = Orientation.Vertical,
                Margin = new Thickness(16, 0, 0, 0)
            };
 
            Panel.Children.Add(Panel2);
 
            StackPanel Panel3 = new StackPanel()
            {
                Orientation = Orientation.Horizontal,
                Width = 184
            };
 
            Panel2.Children.Add(Panel3);
 
            StackPanel Panel4 = new StackPanel()
            {
                Orientation = Orientation.Vertical
            };
 
            Panel3.Children.Add(Panel4);
 
            Panel4.Children.Add(new Label() { Content = "Value:" });
            Panel4.Children.Add(Value1);
 
            Panel4 = new StackPanel()
            {
                Orientation = Orientation.Vertical,
                Visibility = Visibility.Hidden,
                Margin = new Thickness(16, 0, 0, 0)
            };
 
            Panel3.Children.Add(Panel4);
 
            Panel4.Children.Add(new Label() { Content = "To:" });
            Panel4.Children.Add(Value2);
 
            Panel2 = new StackPanel()
            {
                Orientation = Orientation.Vertical,
                Margin = new Thickness(16, 0, 0, 0),
                VerticalAlignment = VerticalAlignment.Bottom
            };
 
            Button Delete = new Button()
            {
                Name = "Delete" + Suffix,
                Width = 80,
                Height = this.Operator1.ActualHeight,
                Padding = new Thickness(-10),
                Content = "Delete",
                Tag = this.ruleNr
            };
 
            Delete.Click += this.Delete_Click;
 
            Panel2.Children.Add(Delete);
            Panel.Children.Add(Panel2);
 
            this.SearchFields.Children.Add(Panel);
            this.nrRules++;
        }
 
        private void Delete_Click(object Sender, RoutedEventArgs e)
        {
            if (this.nrRules <= 1)
            {
                MessageBox.Show(this, "At least one rule must exist.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
                return;
            }
 
            Button Button = (Button)Sender;
            StackPanel Rule = (StackPanel)(((StackPanel)Button.Parent).Parent);
            ((StackPanel)Rule.Parent).Children.Remove(Rule);
 
            this.nrRules--;
        }
 
        public Rule[] GetRules()
        {
            List<Rule> Result = new List<Rule>();
 
            foreach (StackPanel Rule in this.SearchFields.Children)
            {
                StackPanel Panel1 = (StackPanel)Rule.Children[0];
                StackPanel Panel2 = (StackPanel)Rule.Children[1];
                StackPanel Panel3 = (StackPanel)Rule.Children[2];
                StackPanel Panel3_1 = (StackPanel)Panel3.Children[0];
                StackPanel Panel3_1_1 = (StackPanel)Panel3_1.Children[0];
                StackPanel Panel3_1_2 = (StackPanel)Panel3_1.Children[1];
                ComboBox Field = (ComboBox)Panel1.Children[1];
                ComboBox Operator = (ComboBox)Panel2.Children[1];
                TextBox Value1 = (TextBox)Panel3_1_1.Children[1];
                TextBox Value2 = (TextBox)Panel3_1_2.Children[1];
                string TagName;
 
                TagName = Field.Text;
                foreach (ComboBoxItem Item in Field.Items)
                {
                    if (TagName == Item.Content.ToString())
                    {
                        TagName = Item.Tag.ToString();
                        break;
                    }
                }
 
                Result.Add(new Dialogs.IoT.Rule()
                {
                    Tag = TagName,
                    Operator = (Operator)Operator.SelectedIndex,
                    Value1 = Value1.Text,
                    Value2 = Value2.Text
                });
            }
 
            return Result.ToArray();
        }
 
        private void Operator_SelectionChanged(object Sender, SelectionChangedEventArgs e)
        {
            ComboBox Op = (ComboBox)Sender;
            Operator Op2 = (Operator)Op.SelectedIndex;
            StackPanel Panel = (StackPanel)(Op.Parent);
            StackPanel Rule = (StackPanel)(Panel.Parent);
            if (Rule.Children.Count < 3)
                return; // Building form.
 
            StackPanel Value = (StackPanel)(Rule.Children[2]);
            StackPanel Values = (StackPanel)(Value.Children[0]);
            StackPanel Value1Panel = (StackPanel)(Values.Children[0]);
            StackPanel Value2Panel = (StackPanel)(Values.Children[1]);
            Label Value1Label = (Label)(Value1Panel.Children[0]);
            TextBox Value1 = (TextBox)(Value1Panel.Children[1]);
 
            if (Op2 == Operator.InRange || Op2 == Operator.NotInRange)
            {
                Value1Label.Content = "From:";
                Value1.Width = 84;
                Value1.ToolTip = "Select value to search from.";
                Value2Panel.Visibility = Visibility.Visible;
            }
            else
            {
                Value1Label.Content = "Value:";
                Value1.Width = 184;
                Value2Panel.Visibility = Visibility.Hidden;
 
                switch (Op2)
                {
                    case Operator.Wildcard:
                        Value1.ToolTip = "Select value to search on. Use asterisks (*) as wildcards.";
                        break;
 
                    case Operator.RegularExpression:
                        Value1.ToolTip = "Select regular expression to search on.";
                        break;
 
                    default:
                        Value1.ToolTip = "Select value to search on.";
                        break;
                }
            }
        }
    }
}