使TextBox大小适应GridView wpf中的列大小？

在WPF中，使TextBox的大小适应GridView中的列大小可以通过几种方式实现。以下是几种常见的方法：

方法一：使用GridViewColumn的Width属性

你可以在GridViewColumn中设置Width属性，使TextBox的大小与列大小相匹配。

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <ListView ItemsSource="{Binding Data}">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}" Width="100"/>
                    <GridViewColumn Header="Description">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBox Text="{Binding Description}" Width="{Binding RelativeSource={RelativeSource AncestorType=GridViewColumn}, Path=ActualWidth}" />
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>
</Window>

方法二：使用Converter进行动态宽度调整

你可以创建一个IValueConverter，将GridViewColumn的宽度转换为TextBox的宽度。

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApp"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <local:WidthConverter x:Key="WidthConverter"/>
    </Window.Resources>
    <Grid>
        <ListView ItemsSource="{Binding Data}">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}" Width="100"/>
                    <GridViewColumn Header="Description" x:Name="descriptionColumn">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBox Text="{Binding Description}" Width="{Binding ActualWidth, ElementName=descriptionColumn, Converter={StaticResource WidthConverter}}" />
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>
</Window>

using System;
using System.Globalization;
using System.Windows.Data;

namespace WpfApp
{
    public class WidthConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is double doubleValue)
            {
                return doubleValue;
            }
            return DependencyProperty.UnsetValue;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}

方法三：使用Style进行动态宽度调整

你可以使用Style来绑定TextBox的宽度到GridViewColumn的宽度。

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <Style x:Key="TextBoxStyle" TargetType="TextBox">
            <Setter Property="Width" Value="{Binding ActualWidth, RelativeSource={RelativeSource AncestorType=GridViewColumn}}" />
        </Style>
    </Window.Resources>
    <Grid>
        <ListView ItemsSource="{Binding Data}">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}" Width="100"/>
                    <GridViewColumn Header="Description">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBox Text="{Binding Description}" Style="{StaticResource TextBoxStyle}" />
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>
</Window>