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How to use PropertyChangingEventArgs class of System.ComponentModel package

Best JustMockLite code snippet using System.ComponentModel.PropertyChangingEventArgs

MultiSliderPoint.cs

Source:MultiSliderPoint.cs

...20            set21            {22                var changing = value == this.Left;23                if (changing)24                    OnPropertyChanging(new System.ComponentModel.PropertyChangingEventArgs("Left"));25                Polygon.SetValue(Canvas.LeftProperty, value);26                if (changing)27                    OnPropertyChanged(new System.ComponentModel.PropertyChangedEventArgs("Left"));28            }29        }30        internal double Center31        {32            get { return this.Left + Width / 2; }33            set34            {35                var changing = value == this.Center;36                if (changing)37                    OnPropertyChanging(new System.ComponentModel.PropertyChangingEventArgs("Center"));38                this.Left = value - Width / 2;39                if (changing)40                    OnPropertyChanged(new System.ComponentModel.PropertyChangedEventArgs("Center"));41            }42        }43        internal double Width44        {45            get46            {47                return (double)Polygon.GetValue(Polygon.WidthProperty);48            }49            set50            {51                var changing = value == Polygon.Width;52                if (changing)53                    OnPropertyChanging(new System.ComponentModel.PropertyChangingEventArgs("Width"));54                Polygon.SetValue(Polygon.WidthProperty, value);55                if (changing)56                    OnPropertyChanged(new System.ComponentModel.PropertyChangedEventArgs("Width"));57            }58        }59        internal double Height60        {61            get62            {63                return (double)Polygon.GetValue(Polygon.HeightProperty);64            }65            set66            {67                var changing = value == this.Width;68                if (changing)69                    OnPropertyChanging(new System.ComponentModel.PropertyChangingEventArgs("Height"));70                Polygon.SetValue(Polygon.HeightProperty, value);71                if (changing)72                    OnPropertyChanged(new System.ComponentModel.PropertyChangedEventArgs("Height"));73            }74        }75        internal Panel Parent { get; set; }76        internal bool IsMouseCaptured { get { return (bool)Polygon.GetValue(Polygon.IsMouseCapturedProperty); } }77        internal bool IsMouseOver { get { return (bool)Polygon.GetValue(Polygon.IsMouseOverProperty); } }78        internal Style Style79        {80            get81            {82                return (Style)Polygon.GetValue(Polygon.StyleProperty);83            }84            set85            {86                var changing = value == this.Style;87                if (changing)88                    OnPropertyChanging(new System.ComponentModel.PropertyChangingEventArgs("Style"));89                Polygon.SetValue(Polygon.StyleProperty, value);90                if (changing)91                    OnPropertyChanged(new System.ComponentModel.PropertyChangedEventArgs("Style"));92            }93        }94        public MultiSliderPoint(double center, Panel parent)95        {96            this.Parent = parent;97            this.Polygon = new Polygon { Width = defaultWidth, Height = defaultHeight };98            if (parent != null)99                this.Center = center;100            Polygon.Points.Add(new Point(0, 10));101            Polygon.Points.Add(new Point(5, 0));102            Polygon.Points.Add(new Point(10, 10));103            Polygon.Points.Add(new Point(0, 10));104            Polygon.MouseMove += Polygon_MouseMove;105            Polygon.MouseUp += Polygon_MouseUp;106            Polygon.MouseDown += Polygon_Down;107            Polygon.Focusable = true;108        }109        ~MultiSliderPoint()110        {111            try { this.Parent.Children.Remove(Polygon); }112            catch { }113        }114        private void Polygon_MouseMove(object sender, MouseEventArgs e)115        {116            if (e.LeftButton != MouseButtonState.Pressed) return;117            var poly = sender as Polygon;118            var point = Mouse.GetPosition(this.Parent);119            var center = point.X;120            if (center >= 0 && center <= this.Parent.Width)121                this.Center = center;122        }123        private void Polygon_MouseUp(object sender, MouseEventArgs e)124        {125            var poly = sender as Polygon;126            poly.ReleaseMouseCapture();127        }128        private void Polygon_Down(object sender, MouseEventArgs e)129        {130            var poly = sender as Polygon;131            poly.CaptureMouse();132            poly.Focus();133        }134        #region INotifyPropertyChanged Members135        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;136        protected virtual void OnPropertyChanged(System.ComponentModel.PropertyChangedEventArgs e)137        {138            if (PropertyChanged != null)139                PropertyChanged(this, e);140        }141        #endregion142        #region INotifyPropertyChanging Members143        public event System.ComponentModel.PropertyChangingEventHandler PropertyChanging;144        protected virtual void OnPropertyChanging(System.ComponentModel.PropertyChangingEventArgs e)145        {146            if (PropertyChanging != null)147                PropertyChanging(this, e);148        }149        #endregion150    }151}...

ViewModelBase.cs

Source:ViewModelBase.cs

1ï»¿using System.Collections.Generic;2using System.ComponentModel;3using System.Runtime.CompilerServices;4using ReactiveUI;5using PropertyChangingEventArgs = System.ComponentModel.PropertyChangingEventArgs;6using PropertyChangingEventHandler = System.ComponentModel.PropertyChangingEventHandler;7namespace SmartButler.Logic.Common8{9    public abstract class ViewModelBase : ReactiveObject, INotifyPropertyChanged, System.ComponentModel.INotifyPropertyChanging10    {11        private bool _isBusy = false;12        public new event PropertyChangedEventHandler PropertyChanged;13        public new event PropertyChangingEventHandler PropertyChanging;14        public bool IsBusy15        {16            get => _isBusy;17            set18            {19                OnPropertyChanging();20                _isBusy = value;21                OnPropertyChanged();22            }23        }24        protected void SetValue<T>(ref T backingField, T value, [CallerMemberName] string callerName = null)25        {26            if (EqualityComparer<T>.Default.Equals(backingField, value))27                return;28            OnPropertyChanging(callerName);29            backingField = value;30            OnPropertyChanged(callerName);31        }32        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)33        {34            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));35        }36        protected virtual void OnPropertyChanging([CallerMemberName] string propertyName = null)37        {38            PropertyChanging?.Invoke(this, new PropertyChangingEventArgs(propertyName));39        }40        41    }42}

PropertyChangingEventArgs.cs

Source:PropertyChangingEventArgs.cs

1//------------------------------------------------------------------------------2// <copyright file="PropertyChangingEventArgs.cs" company="Microsoft">3//     Copyright (c) Microsoft Corporation.  All rights reserved.4// </copyright>                                                                5//------------------------------------------------------------------------------6namespace System.ComponentModel {7    8    using System;9    using System.Diagnostics;10    using System.Security.Permissions;11    /// <devdoc>12    /// <para>Provides data for the <see langword='PropertyChanging'/>13    /// event.</para>14    /// </devdoc>15#if !SILVERLIGHT16    [HostProtection(SharedState = true)]17#endif18    public class PropertyChangingEventArgs : EventArgs {19        private readonly string propertyName;20        /// <devdoc>21        /// <para>Initializes a new instance of the <see cref='System.ComponentModel.PropertyChangingEventArgs'/>22        /// class.</para>23        /// </devdoc>24        public PropertyChangingEventArgs(string propertyName) {25            this.propertyName = propertyName;26        }27        /// <devdoc>28        ///    <para>Indicates the name of the property that is changing.</para>29        /// </devdoc>30        public virtual string PropertyName {31            get {32                return propertyName;33            }34        }35    }36}...

PropertyChangingEventArgs

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.ComponentModel;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            Person p = new Person();12            p.PropertyChanging += P_PropertyChanging;13            p.Name = "John";14            p.Age = 25;15            Console.WriteLine("Person Details");16            Console.WriteLine("Name: " + p.Name);17            Console.WriteLine("Age: " + p.Age);18            Console.Read();19        }20        private static void P_PropertyChanging(object sender, PropertyChangingEventArgs e)21        {22            Console.WriteLine("Property Changing: " + e.PropertyName);23        }24    }25    {26        public event PropertyChangingEventHandler PropertyChanging;27        private string name;28        private int age;29        {30            get { return name; }31            {32                if (PropertyChanging != null)33                {34                    PropertyChanging(this, new PropertyChangingEventArgs("Name"));35                }36                name = value;37            }38        }39        {40            get { return age; }41            {42                if (PropertyChanging != null)43                {44                    PropertyChanging(this, new PropertyChangingEventArgs("Age"));45                }46                age = value;47            }48        }49    }50}

PropertyChangingEventArgs

Using AI Code Generation

1using System.ComponentModel;2{3    {4        static void Main(string[] args)5        {6            Person p = new Person();7            p.PropertyChanging += new PropertyChangingEventHandler(p_PropertyChanging);8            p.Name = "Raj";9            p.Name = "Rajesh";10            p.Name = "Rajesh Kumar";11            p.Name = "Rajesh Kumar Singh";12        }13        static void p_PropertyChanging(object sender, PropertyChangingEventArgs e)14        {15            Console.WriteLine("Property {0} is changing", e.PropertyName);16        }17    }18    {19        private string name;20        public event PropertyChangingEventHandler PropertyChanging;21        {22            get { return name; }23            {24                if (PropertyChanging != null)25                {26                    PropertyChanging(this, new PropertyChangingEventArgs("Name"));27                }28                name = value;29            }30        }31    }32}

PropertyChangingEventArgs

Using AI Code Generation

1using System;2using System.ComponentModel;3{4    private string name;5    private int age;6    public event PropertyChangingEventHandler PropertyChanging;7    {8        get { return name; }9        {10            if (name != value)11            {12                PropertyChanging(this, new PropertyChangingEventArgs("Name"));13                name = value;14            }15        }16    }17    {18        get { return age; }19        {20            if (age != value)21            {22                PropertyChanging(this, new PropertyChangingEventArgs("Age"));23                age = value;24            }25        }26    }27}28{29    static void Main(string[] args)30    {31        Employee emp = new Employee();32        emp.PropertyChanging += new PropertyChangingEventHandler(emp_PropertyChanging);33        emp.Name = "Mark";34        emp.Age = 25;35    }36    static void emp_PropertyChanging(object sender, PropertyChangingEventArgs e)37    {38        Console.WriteLine("Property {0} is changing", e.PropertyName);39    }40}41using System;42using System.ComponentModel;43{44    private string name;45    private int age;46    public event PropertyChangingEventHandler PropertyChanging;47    {48        get { return name; }49        {50            if (name != value)51            {52                PropertyChanging(this, new PropertyChangingEventArgs("Name"));53                name = value;54            }55        }56    }57    {58        get { return age; }59        {60            if (age != value)61            {62                PropertyChanging(this, new PropertyChangingEventArgs("Age"));63                age = value;64            }65        }66    }67}68{69    static void Main(string[] args)70    {71        Employee emp = new Employee();72        emp.PropertyChanging += new PropertyChangingEventHandler(emp_PropertyChanging);73        emp.Name = "Mark";74        emp.Age = 25;75    }76    static void emp_PropertyChanging(object sender, PropertyChangingEventArgs e)77    {78        Console.WriteLine("Property {0} is changing", e.PropertyName);79    }80}

PropertyChangingEventArgs

Using AI Code Generation

1using System.ComponentModel;2using System;3{4    {5        static void Main(string[] args)6        {7            Console.WriteLine("Hello World!");8        }9    }10    {11        private string name;12        private string address;13        {14            {15                return name;16            }17            {18                if (value != name)19                {20                    OnPropertyChanging("Name");21                    name = value;22                    OnPropertyChanged("Name");23                }24            }25        }26        {27            {28                return address;29            }30            {31                if (value != address)32                {33                    OnPropertyChanging("Address");34                    address = value;35                    OnPropertyChanged("Address");36                }37            }38        }39        protected virtual void OnPropertyChanging(string propertyName)40        {41            if (PropertyChanging != null)42            {43                PropertyChanging(this, new PropertyChangingEventArgs(propertyName));44            }45        }46        protected virtual void OnPropertyChanged(string propertyName)47        {48            if (PropertyChanged != null)49            {50                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));51            }52        }53        public event PropertyChangingEventHandler PropertyChanging;

PropertyChangingEventArgs

Using AI Code Generation

1using System;2using System.ComponentModel;3{4    string myString;5    {6        {7            return myString;8        }9        {10            if (value != myString)11            {12                PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("MyString");13                OnPropertyChanging(pcea);14                if (!pcea.Cancel)15                {16                    myString = value;17                    OnPropertyChanged("MyString");18                }19            }20        }21    }22    public event PropertyChangingEventHandler PropertyChanging;23    public event PropertyChangedEventHandler PropertyChanged;24    protected void OnPropertyChanged(PropertyChangedEventArgs e)25    {26        if (PropertyChanged != null)27        {28            PropertyChanged(this, e);29        }30    }31    protected void OnPropertyChanging(PropertyChangingEventArgs e)32    {33        if (PropertyChanging != null)34        {35            PropertyChanging(this, e);36        }37    }38    public static void Main()39    {40        MyClass mc = new MyClass();41        mc.PropertyChanged += new PropertyChangedEventHandler(mc_PropertyChanged);42        mc.PropertyChanging += new PropertyChangingEventHandler(mc_PropertyChanging);43        mc.MyString = "hello";44        mc.MyString = "hello";45    }46    static void mc_PropertyChanging(object sender, PropertyChangingEventArgs e)47    {48        Console.WriteLine("PropertyChanging: {0}", e.PropertyName);49    }50    static void mc_PropertyChanged(object sender, PropertyChangedEventArgs e)51    {52        Console.WriteLine("PropertyChanged: {0}", e.PropertyName);53    }54}

PropertyChangingEventArgs

Using AI Code Generation

1using System.ComponentModel;2{3   public static void Main()4   {5      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");6      System.Console.WriteLine(pcea.PropertyName);7   }8}9using System.ComponentModel;10{11   public static void Main()12   {13      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");14      System.Console.WriteLine(pcea.PropertyName);15   }16}17using System.ComponentModel;18{19   public static void Main()20   {21      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");22      System.Console.WriteLine(pcea.PropertyName);23   }24}25using System.ComponentModel;26{27   public static void Main()28   {29      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");30      System.Console.WriteLine(pcea.PropertyName);31   }32}33using System.ComponentModel;34{35   public static void Main()36   {37      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");38      System.Console.WriteLine(pcea.PropertyName);39   }40}41using System.ComponentModel;42{43   public static void Main()44   {45      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");46      System.Console.WriteLine(pcea.PropertyName);47   }48}49using System.ComponentModel;50{51   public static void Main()52   {53      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");54      System.Console.WriteLine(pcea.PropertyName);55   }56}57using System.ComponentModel;58{59   public static void Main()60   {61      PropertyChangingEventArgs pcea = new PropertyChangingEventArgs("Name");62      System.Console.WriteLine(pcea.PropertyName);63   }64}

PropertyChangingEventArgs

Using AI Code Generation

1using System.ComponentModel;2using System;3{4    public static void Main()5    {6        Person p = new Person();7        p.PropertyChanging += p_PropertyChanging;8        p.Name = "John";9        p.Age = 30;10        Console.ReadLine();11    }12    static void p_PropertyChanging(object sender, PropertyChangingEventArgs e)13    {14        Console.WriteLine("Property {0} is changing...", e.PropertyName);15    }16}17{18    public event PropertyChangingEventHandler PropertyChanging;19    string name;20    {21        get { return name; }22        {23            if (value != name)24            {25                PropertyChanging(this, new PropertyChangingEventArgs("Name"));26                name = value;27            }28        }29    }30    int age;31    {32        get { return age; }33        {34            if (value != age)35            {36                PropertyChanging(this, new PropertyChangingEventArgs("Age"));37                age = value;38            }39        }40    }41}42using System.ComponentModel;43using System;44{45    public static void Main()46    {47        Person p = new Person();48        p.PropertyChanged += p_PropertyChanged;49        p.Name = "John";50        p.Age = 30;51        Console.ReadLine();52    }53    static void p_PropertyChanged(object sender, PropertyChangedEventArgs e)54    {55        Console.WriteLine("Property {0} is changed...", e.PropertyName);56    }57}58{59    public event PropertyChangedEventHandler PropertyChanged;60    string name;61    {62        get { return name; }63        {64            if (value != name)65            {66                PropertyChanged(this, new PropertyChangedEventArgs("Name"));67                name = value;68            }69        }70    }71    int age;72    {73        get { return age; }74        {

PropertyChangingEventArgs

Using AI Code Generation

1using System.ComponentModel;2{3    static void Main(string[] args)4    {5        PropertyChangingEventArgs e = new PropertyChangingEventArgs("Name");6        Console.WriteLine(e.PropertyName);7    }8}

PropertyChangingEventArgs

Using AI Code Generation

1using System.ComponentModel;2using System;3{4    static void Main(string[] args)5    {6        Console.WriteLine("Hello World!");7    }8}

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