CommunicationVM.cs
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using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using HandyControl.Data;
using HHECS.BllModel;
using HHECS.DAQClient.Model;
using HHECS.DAQClient.View.CommunicationView;
using LinqKit;
using System.Collections;
using System.Collections.ObjectModel;
using System.Linq.Expressions;
using System.Windows;
using MessageBox = HandyControl.Controls.MessageBox;
namespace HHECS.DAQClient.ViewModel.CommunicationVM
{
public partial class CommunicationVM : ObservableObject
{
[ObservableProperty]
private string code;
[ObservableProperty]
private string name;
[ObservableProperty]
private Dictionary<string, CommunicationTypeConst?> communicationTypes = new Dictionary<string, CommunicationTypeConst?>();
[ObservableProperty]
private CommunicationTypeConst? communicationType;
[ObservableProperty]
private int pageIndex = 1;
[ObservableProperty]
private long maxPage;
[ObservableProperty]
private int pageSize = 30;
[ObservableProperty]
private ObservableCollection<CommunicationConfig> communicationConfigs = new ObservableCollection<CommunicationConfig>();
private readonly IFreeSql _freeSql;
public CommunicationVM(IFreeSql freeSql)
{
_freeSql = freeSql;
InitialData();
LoadData();
}
private void InitialData()
{
var keyValuePairs = new Dictionary<string, CommunicationTypeConst?>()
{
{ "全部", null },
};
foreach (var item in Enum.GetNames<CommunicationTypeConst>())
{
keyValuePairs.Add(item, Enum.Parse<CommunicationTypeConst>(item));
}
CommunicationTypes = keyValuePairs;
}
[RelayCommand]
public void Serach()
{
var result = LoadData();
if (!result.Success)
{
MessageBox.Error($"[{nameof(CommunicationVM)}]加载数据失败.{result.Msg}");
}
}
[RelayCommand]
public void Add()
{
var view = new CommunicationAddOrEditView();
var result = view.ShowDialog();
if (result == true)
{
LoadData();
}
}
[RelayCommand]
public void Edit(int communicationId)
{
var vm = new CommunicationAddOrEditView(communicationId);
var result = vm.ShowDialog();
if (result == true)
{
LoadData();
}
}
[RelayCommand]
public void Delete(int communicationId)
{
try
{
var result = MessageBox.Ask($"确认删除数据？");
if (result != MessageBoxResult.OK)
{
return;
}
_freeSql.Delete<CommunicationConfig>().Where(x => x.Id == communicationId).ExecuteAffrows();
LoadData();
MessageBox.Success("删除数据成功");
}
catch (Exception ex)
{
MessageBox.Error($"删除数据失败.{ex.Message}");
}
}
[RelayCommand]
public void BatchDelete(IList sender)
{
try
{
var temps = sender.Cast<CommunicationConfig>().ToList();
if (temps.Count == 0)
{
MessageBox.Warning("未选中任何数据！");
return;
}
var result = MessageBox.Ask($"确认删除选中数据？");
if (result == MessageBoxResult.OK)
{
return;
}
var communicationIds = temps.Select(x => x.Id).ToList();
_freeSql.Delete<CommunicationConfig>().Where(x => communicationIds.Contains(x.Id)).ExecuteAffrows();
LoadData();
MessageBox.Success($"成功删除{temps.Count}条数据");
}
catch (Exception ex)
{
MessageBox.Error($"删除失败.{ex.Message}");
}
}
/// <summary>
/// 页码改变
/// </summary>
[RelayCommand]
private void PageUpdated(FunctionEventArgs<int> info)
{
PageIndex = info.Info;
LoadData();
}
private BllResult LoadData()
{
try
{
var query = _freeSql.Queryable<CommunicationConfig>().Where(GetFilter());
var total = query.Count();
MaxPage = total / PageSize + Convert.ToInt32(total % PageSize != 0);
var result = query.Page(PageIndex, PageSize).ToList();
CommunicationConfigs = new ObservableCollection<CommunicationConfig>(result);
return BllResultFactory.Success();
}
catch (Exception ex)
{
return BllResultFactory.Error(ex.Message);
}
}
private Expression<Func<CommunicationConfig, bool>> GetFilter()
{
var filter = PredicateBuilder.New<CommunicationConfig>(true);
if (!string.IsNullOrWhiteSpace(Code))
{
filter = filter.And(x => x.Code.Contains(Code));
}
if (!string.IsNullOrWhiteSpace(Name))
{
filter = filter.And(x => x.Name.Contains(Name));
}
if (CommunicationType != null)
{
filter = filter.And(x => x.CommunicationType.Equals(CommunicationType));
}
return filter;
}
}
}