public async Task ExecuteAsync(object parameter = null)
{
PreExecution?.Invoke(this, new ExecuteTaskEventArgs {
IsExecuting = true
});
await _execute(parameter);
RaiseCanExecuteChanged();
}
public void Execute(
object parameter)
{
PreExecution?.Invoke(
this,
new RelayCommandEventArgs(parameter));
var p = parameter is T
? (T)parameter
: (T)Convert.ChangeType(
parameter,
typeof(T));
_execute(
p);
PostExecution?.Invoke(
this,
new RelayCommandEventArgs(parameter));
}
/// <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 null.</param>
/// <exception cref="Exception"><see cref="PreExecution"/>'s, <see cref="PostExecution"/>'s or <see cref="execute"/>'s callback throws an exception.</exception>
public void Execute(object parameter)
{
PreExecution?.Invoke(this, new DataEventArgs <object>(parameter));
execute(ConversionHelper.ConvertValue <T>(parameter));
PostExecution?.Invoke(this, new DataEventArgs <object>(parameter));
}
/// <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 null.</param>
/// <exception cref="Exception"><see cref="PreExecution"/>'s, <see cref="PostExecution"/>'s or <see cref="execute"/>'s callback throws an exception.</exception>
public void Execute(object parameter)
{
PreExecution?.Invoke(this, new DataEventArgs <object>(parameter));
execute(parameter);
PostExecution?.Invoke(this, new DataEventArgs <object>(parameter));
}