WPF实现带模糊搜索的DataGrid的示例代码

目录

• 带模糊搜索的DataGrid
• 前端代码 view
• 后端代码 ViewModel

带模糊搜索的DataGrid

前端代码 view

后端代码 ViewModel

using Prism.Commands;
using Prism.Mvvm;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Data;
using 带筛选的DataGrid.Core;

namespace MVVM.ViewModels
{
    public class MainWindowViewModel : BindableBase
    {
        public MainWindowViewModel()
        {
            AddEmployeeCommand = new DelegateCommand(AddEmployee);
            this.employees = new List(Employee.FakeMany(10));
            CollectionView = CollectionViewSource.GetDefaultView(employees);
            CollectionView.Filter = (item) =>
            {
                if (string.IsNullOrEmpty(FilterText)) return true;
                var em = item as Employee;
                return em.FirstName.Contains(FilterText) || em.LastName.Contains(FilterText);
            };
        }

        List employees;
        public DelegateCommand AddEmployeeCommand { get; set; }

        private ICollectionView collectionView;
        public ICollectionView CollectionView
        {
            get { return collectionView; }
            set { SetProperty(ref collectionView, value); }
        }

        private string filterText;
        public string FilterText
        {
            get { return filterText; }
            set { SetProperty(ref filterText, value,OnFilterTextChanged); }
        }

        public void OnFilterTextChanged()
        {
            CollectionView.Refresh();
        }

        public void AddEmployee()
        {
            employees.Add(Employee.FakeOne());
            CollectionView.Refresh();
        }
    }
}

Model 代码，引用了 Faker 这个库来创造假数据

using Bogus;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 带筛选的DataGrid.Core
{
    public class Employee
    {
        public int Id { get; set; }
        public string  FirstName { get; set; }
        public string LastName { get; set; }
        public DateOnly Birthday { get; set; }
        public int Salay { get; set; }

        public static Employee FakeOne() => employeeFaker.Generate();

        public static IEnumerable< Employee> FakeMany(int count ) => employeeFaker.Generate(count);


        private static readonly Faker employeeFaker = new Faker()
            .RuleFor(x => x.Id, x => x.IndexFaker)
            .RuleFor(x => x.FirstName, x => x.Person.FirstName)
            .RuleFor(x => x.LastName, x => x.Person.LastName)
            .RuleFor(x => x.Birthday, x => DateOnly.FromDateTime(x.Person.DateOfBirth))
            .RuleFor(x => x.Salay, x => x.Random.Int(6, 30) * 1000);
    }
}

代码：https://github.com/sw554227643/---DataGrid-MVVM--

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