Triton160/Common/DataAnalysisControl/Charting/Command/RemoveDataSeriesCommand.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;

using Aitex.UI.Charting.ViewModel;
using System.Windows;
using Aitex.UI.Charting.View;
using DataAnalysisControl.Core;

namespace Aitex.UI.Charting.Command
{
    public class RemoveDataSeriesCommand : ICommand
    {
        public RemoveDataSeriesCommand(string uniqueDataId)
        {
            _uniqueDataId = uniqueDataId;
        }
        string _uniqueDataId;

        public bool CanExecute(object parameter)
        {
            return true;
        }

#pragma warning disable 0067
        public event EventHandler CanExecuteChanged;
#pragma warning restore 0067

        private void AsyncShowWarningMessageBox(string message, string title)
        {
            Application.Current.Dispatcher.BeginInvoke(new Action(() => MessageBox.Show(message, title, MessageBoxButton.OK, MessageBoxImage.Warning)));
        }

        public void Execute(object parameter)
        {
            string reason = string.Empty;
            try
            {
                var commonViewModel = (CommonViewModel)parameter;
                if (string.IsNullOrEmpty(_uniqueDataId))
                {
                    foreach (MyLineSeries item in commonViewModel.RenderableSeries)
                    {
                        item.DataSource.Datas[item.SeriesName].RawData.Clear();
                        item.DataSource.Datas[item.SeriesName].TimeStamp.Clear();
                    }
                    commonViewModel.RenderableSeries.Clear();
                }
                else
                {
                    foreach (MyLineSeries item in commonViewModel.RenderableSeries)
                    {
                        if (item.UniqueId == _uniqueDataId)
                        {
                            item.DataSource.Datas[item.SeriesName].RawData.Clear();
                            item.DataSource.Datas[item.SeriesName].TimeStamp.Clear();
                            commonViewModel.RenderableSeries.Remove(item);
                            break;
                        }
                    }
                }
                //通知Property修改
                commonViewModel.InvokePropertyChanged("RenderableSeries");
            }
            catch (Exception ex)
            {
                reason = string.Format("Chating删除DataSeries之{0}发生异常", _uniqueDataId);
                CONTEXT.WriteLog(ex, reason);
                AsyncShowWarningMessageBox(reason, "警告");
            }
        }
    }
}