使WPF ComboBoxes填充整列宽度 [英] Make WPF ComboBoxes fill a whole column width

问题描述

我有一个问题使 ComboBox 拉伸到 GridViewColumn 中填充整个列宽。当列调整大小时，它也应该调整大小。

I'm having problems making a ComboBox stretch to fill the whole column width in a GridViewColumn. It should also resize when the column is resized.

在下面的示例中，我有一个 StackPanel 和 ComboBox 里面。这被设置为拉伸，并且实际上拉伸以填充 StackPanel 宽度。

In the following example I have a StackPanel with a ComboBox inside. This is set to stretch and will in fact stretch to fill the StackPanel width.

然后，我在一列中添加一个 ListView ，其中包含 StackPanel 与 ComboBox 。 StackPanel 和 ComboBox 都设置为stretch，但它们不会。我使用背景颜色来标识 StackPanel 的大小，除非我设置一个宽度或添加元素到 ComboBox 这样它需要更多的宽度。

Then I add a ListView with one column, containing a StackPanel with a ComboBox. Both the StackPanel and the ComboBox are set to stretch, but they don't. I use background colors to identify the size of the StackPanels, and there is no red unless I set a width or add elements to the ComboBox such that it needs more width.

我也尝试过使用 Horizo​​ntalContentAlignment 属性，但没有成功。

I also tried playing around with the HorizontalContentAlignment property without success.

<StackPanel Height="59" Margin="45,12,38,0" VerticalAlignment="Top" Background="Green">
    <ComboBox HorizontalAlignment="Stretch" />
</StackPanel>

<ListView x:Name="MyListView" Margin="0,106,0,0">
    <ListView.View>
        <GridView>
            <GridViewColumn Header="Num" Width="70">
                <GridViewColumn.CellTemplate>
                    <DataTemplate>
                        <StackPanel Background="red" Orientation="Horizontal" HorizontalAlignment="Stretch">
                            <ComboBox HorizontalAlignment="Stretch" />
                        </StackPanel>
                    </DataTemplate>
                </GridViewColumn.CellTemplate>
            </GridViewColumn>
        </GridView>
    </ListView.View>
    <ListViewItem></ListViewItem>
</ListView>

推荐答案

尝试设置 / code>的 ListViewItem 。我也删除了您的StackPanel。

Try setting the Style of the ListViewItem. I also removed your StackPanel.

<ListView x:Name="MyListView" Margin="0,106,0,0">
    <ListView.Resources>
        <Style TargetType="ListViewItem">
            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
        </Style>
    </ListView.Resources>

    <ListView.View>
        <GridView>
            <GridViewColumn Header="Num" Width="170">
                <GridViewColumn.CellTemplate>
                    <DataTemplate>
                        <ComboBox />
                    </DataTemplate>
                </GridViewColumn.CellTemplate>
            </GridViewColumn>
        </GridView>
    </ListView.View>

    <ListViewItem></ListViewItem>
</ListView>

这篇关于使WPF ComboBoxes填充整列宽度的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！