Command 传参的几种方式

Command可以根据CommandParameter传参

关键代码

public ICommand SubmitCommand => _submitCommand; private RelayCommand _submitCommand = new RelayCommand(new Action<object>(ShowMessage)); private static void ShowMessage(object obj) { MessageBox.Show(obj.ToString()); } <TextBox Name="textBox1"></TextBox> <Button Command="{Binding SubmitCommand}" CommandParameter="{Binding ElementName=textBox1,Path=Text}" Content="提交参数"></Button>

也可以这样绑定

<Label Grid.Row="0">姓名：</Label> <TextBox Name="name" Grid.Row="0" Grid.Column="1" Text="{Binding Person.Name}"></TextBox> <Label Grid.Row="1">年龄：</Label> <TextBox Name="age" Grid.Row="1" Grid.Column="1" Text="{Binding Person.Age}"></TextBox> <Button Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2" Command="{Binding SubmitCommand}" CommandParameter="{Binding Person}" Content="提交参数"></Button>

示例代码

https://github.com/zLulus/NotePractice/tree/dev3/WPF/WpfDemo/Command

Command与Click的关系

Command用于后台操作，click用于前台展示、交互，可以共存

转载于:https://www.cnblogs.com/Lulus/p/9726379.html