WPF异步命令以及SqlSugar异步增删改查
1、异步
/// <summary>
/// 查询全部
/// </summary>
/// <returns></returns>
public async Task<List<IgniteTubeInfo>> QueryListAsync()
{
return await db.Queryable<IgniteTubeInfo>().ToListAsync();
}
/// <summary>
/// 跟据Id查询
/// </summary>
/// <returns></returns>
public async Task<List<IgniteTubeInfo>> QueryByIdAsync(int id)
{
return await db.Queryable<IgniteTubeInfo>().Where(it=>it.Id==id).ToListAsync();
}
/// <summary>
/// 跟据Name查询
/// </summary>
/// <returns></returns>
public async Task<List<IgniteTubeInfo>> QueryByNameAsync(string name)
{
return await db.Queryable<IgniteTubeInfo>().Where(it => it.IgniteName==name).ToListAsync();
}
/// <summary>
/// 修改
/// </summary>
/// <param name="igniteTubeInfo"></param>
/// <returns></returns>
public async Task UpdateAsync(IgniteTubeInfo igniteTubeInfo)
{
await db.Updateable(igniteTubeInfo).ExecuteCommandAsync();
}
/// <summary>
/// 跟据Id删除
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public async Task DeleteAsync(int id)
{
await db.Deleteable<IgniteTubeInfo>().Where(u => u.Id == id).ExecuteCommandAsync();
}
2、命令
//自定义一个异步命令
public class AsyncCommand : ICommand
{
private bool _isExecuting;
private readonly Func<Task> _execute;
private readonly Func<bool> _canExecute;
public AsyncCommand(Func<Task> execute, Func<bool> canExecute = null)
{
_execute = execute;
_canExecute = canExecute;
}
public bool CanExecute(object parameter)
{
return !_isExecuting && (_canExecute?.Invoke() ?? true);
}
public async void Execute(object parameter)
{
if (CanExecute(parameter))
{
try
{
_isExecuting = true;
await _execute();
}
finally
{
_isExecuting = false;
}
}
}
public event EventHandler CanExecuteChanged
{
add { CommandManager.RequerySuggested += value; }
remove { CommandManager.RequerySuggested -= value; }
}
}
//使用
private AsyncCommand _canelCommand;
public AsyncCommand CancelCommand =>
_canelCommand ?? (_canelCommand = new AsyncCommand(ExecuteCanel));
private void ExecuteCanel()
{
}
本文作者:孤沉
本文链接:https://www.cnblogs.com/guchen33/p/17720845.html
版权声明:本作品采用知识共享署名-非商业性使用-禁止演绎 2.5 中国大陆许可协议进行许可。
【推荐】国内首个AI IDE,深度理解中文开发场景,立即下载体验Trae
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步
· 被坑几百块钱后,我竟然真的恢复了删除的微信聊天记录!
· 没有Manus邀请码?试试免邀请码的MGX或者开源的OpenManus吧
· 【自荐】一款简洁、开源的在线白板工具 Drawnix
· 园子的第一款AI主题卫衣上架——"HELLO! HOW CAN I ASSIST YOU TODAY
· Docker 太简单,K8s 太复杂?w7panel 让容器管理更轻松!