C#
- 20 ответов
- 0 вопросов
9
Вклад в тег
public partial class SetColdBalance : Window
{
public SetColdBalance()
{
InitializeComponent();
}
}
public class RelayCommand<T> : ICommand
{
#region Fields
readonly Action<T> _execute = null;
readonly Predicate<T> _canExecute = null;
#endregion
#region Constructors
/// <summary>
/// Initializes a new instance of <see cref="DelegateCommand{T}"/>.
/// </summary>
/// <param name="execute">Delegate to execute when Execute is called on the command. This can be null to just hook up a CanExecute delegate.</param>
/// <remarks><seealso cref="CanExecute"/> will always return true.</remarks>
public RelayCommand(Action<T> execute)
: this(execute, null)
{
}
/// <summary>
/// Creates a new command.
/// </summary>
/// <param name="execute">The execution logic.</param>
/// <param name="canExecute">The execution status logic.</param>
public RelayCommand(Action<T> execute, Predicate<T> canExecute)
{
if (execute == null)
throw new ArgumentNullException("execute");
_execute = execute;
_canExecute = canExecute;
}
#endregion
#region ICommand Members
///<summary>
///Defines the method that determines whether the command can execute in its current state.
///</summary>
///<param name="parameter">Data used by the command. If the command does not require data to be passed, this object can be set to null.</param>
///<returns>
///true if this command can be executed; otherwise, false.
///</returns>
public bool CanExecute(object parameter)
{
return _canExecute == null ? true : _canExecute((T)parameter);
}
///<summary>
///Occurs when changes occur that affect whether or not the command should execute.
///</summary>
public event EventHandler CanExecuteChanged
{
add { CommandManager.RequerySuggested += value; }
remove { CommandManager.RequerySuggested -= value; }
}
///<summary>
///Defines the method to be called when the command is invoked.
///</summary>
///<param name="parameter">Data used by the command. If the command does not require data to be passed, this object can be set to <see langword="null" />.</param>
public void Execute(object parameter)
{
_execute((T)parameter);
}
#endregion
}
<Window x:Class="AdminTool.SetColdBalance"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:local="clr-namespace:AdminTool"
mc:Ignorable="d"
Title="Задать баланс"
Height="150"
Width="250"
ResizeMode="NoResize"
WindowStartupLocation="CenterScreen"">
<Window.DataContext>
<local:ColdWalletViewModel/>
</Window.DataContext>
<Grid>
<Button Grid.Row="2" Width="100" Height="30" Content="Save" Command="{Binding SaveColdWallets}"/>
</Grid>
</Window>
public class ColdWalletViewModel : BindableBase
{
ICommand _saveColdWallet;
public ICommand SaveColdWallets
{
get
{
return _saveColdWallet ?? (_saveColdWallet = new RelayCommand<object[]>((obj) =>
{
///Тут пишешь что должна выполнять твоя кнопка
}), /*Тут можно написать условие при котором можно будет выполнить данную команду*/);
}
}
}
/// <summary>
/// Implementation of <see cref="INotifyPropertyChanged" /> to simplify models.
/// </summary>
public abstract class BindableBase : INotifyPropertyChanged
{
/// <summary>
/// Multicast event for property change notifications.
/// </summary>
public event PropertyChangedEventHandler PropertyChanged;
/// <summary>
/// Checks if a property already matches a desired value. Sets the property and
/// notifies listeners only when necessary.
/// </summary>
/// <typeparam name="T">Type of the property.</typeparam>
/// <param name="storage">Reference to a property with both getter and setter.</param>
/// <param name="value">Desired value for the property.</param>
/// <param name="propertyName">
/// Name of the property used to notify listeners. This
/// value is optional and can be provided automatically when invoked from compilers that
/// support CallerMemberName.
/// </param>
/// <returns>
/// True if the value was changed, false if the existing value matched the
/// desired value.
/// </returns>
protected bool SetProperty<T>(ref T storage, T value, [CallerMemberName] string propertyName = null)
{
if (Equals(storage, value))
{
return false;
}
storage = value;
this.OnPropertyChanged(propertyName);
return true;
}
/// <summary>
/// Notifies listeners that a property value has changed.
/// </summary>
/// <param name="propertyName">
/// Name of the property used to notify listeners. This
/// value is optional and can be provided automatically when invoked from compilers
/// that support <see cref="CallerMemberNameAttribute" />.
/// </param>
protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
upstream backend {
server backend1.example.com;
server backend2.example.com;
}
server {
server_name test.ru;
location / {
proxy_pass http://backend;
}
}