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wpf datagrid 实现双向绑定

news 2025/7/18 3:01:43

前台

<DataGridAutoGenerateColumns="False"Background="White"CanUserAddRows="True"Grid.Row="1"RowEditEnding="DataGrid_OnRowEditEnding"RowHeight="60"SelectionUnit="CellOrRowHeader"x:Name="DataGrid"><!-- Mode=TwoWay, UpdateSourceTrigger=PropertyChanged  这两个设置很重要,没有的话无法实现双向绑定--><DataGrid.Columns><DataGridTextColumnBinding="{Binding ZhuJieNeiRong, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"Header="注解内容"Width="*"><DataGridTextColumn.ElementStyle><Style TargetType="TextBlock"><Setter Property="VerticalAlignment" Value="Center" /></Style></DataGridTextColumn.ElementStyle><!-- -->
<!-- 这里的功能是 如果设定了行高,加上这个样式 编辑表格时 内容是一直垂直居中--><DataGridTextColumn.EditingElementStyle><Style TargetType="TextBox"><Setter Property="VerticalContentAlignment" Value="Center" /></Style></DataGridTextColumn.EditingElementStyle></DataGridTextColumn></DataGrid.Columns></DataGrid>

后台

public static ObservableCollection<Zjwz> _gridZhuJieList = new ObservableCollection<Zjwz>();private void win_OnLoaded(object sender, RoutedEventArgs e)
{DataGrid.ItemsSource = _gridZhuJieList;
}

数据对象

public class Zjwz : NotificationObject
{private string _zhuJieNeiRong;public string ZhuJieNeiRong{get { return _zhuJieNeiRong; }set{_zhuJieNeiRong = value;RaisePropertyChanged();}}
}

数据对象需要的类

using System.Collections.Generic;
using System.ComponentModel;namespace CommonSql
{public class NotificationObject : INotifyPropertyChanged{public event PropertyChangedEventHandler PropertyChanged;protected virtual void RaisePropertyChanged( string propertyName = null){if (PropertyChanged != null)PropertyChanged(this, new PropertyChangedEventArgs(propertyName));}protected virtual bool SetProperty<T>(ref T member, T value,  string propertyName = null){if (EqualityComparer<T>.Default.Equals(member, value)){return false;}member = value;RaisePropertyChanged(propertyName);return true;}}
}