Question

我正在使用DotNet 4.0，在我的Windows应用程序中UserPermissionList与datagrid绑定。该用户权限包含两列，它们是在datagrid中手动创建为DataGridTextColumn的。但是为什么要在datagrid中显示其他空列。我添加了属性AutoGenerateColumns =“ False”，即使它无法正常工作。如何删除datagrid中的空列。您能帮我解决这个问题吗？

<Window x:Class="DataGridSamples.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:DataGridSamples"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">    
    <Grid>
        <Grid Margin="5,5,15,5">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="120" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>

            <Label Grid.Column="0" Width="120" Content="User Roles:"  />

            <DockPanel Grid.Column="1">
                <Border BorderBrush="DarkGray" Background="White" BorderThickness="2">
                    <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
                        <DataGrid Style="{DynamicResource DGHeaderStyle}" Background="White" HeadersVisibility="All" IsHitTestVisible="False"
                                  CanUserResizeRows="False" CanUserResizeColumns="False" CanUserSortColumns="False" IsTextSearchEnabled="True" IsReadOnly="True" CanUserAddRows="False" 
                                  ItemsSource="{Binding Path=UserPermissionList}" CanUserReorderColumns="False" AutoGenerateColumns="False">
                            <DataGrid.Columns>
                                <DataGridTextColumn Header="Role" Binding="{Binding Path=Role}"/>
                                <DataGridTextColumn Header="Description" Binding="{Binding Path=Description}"/>
                            </DataGrid.Columns>
                        </DataGrid>
                    </ScrollViewer>
                </Border>
            </DockPanel>


        </Grid>



<Application x:Class="DataGridSamples.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:DataGridSamples"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <Style x:Key="DGHeaderStyle" TargetType="{x:Type DataGrid}">
            <Setter Property="ColumnHeaderStyle" Value="{DynamicResource DGCHeaderStyle}"/>
        </Style>
        <Style x:Key="DGCHeaderStyle" TargetType="DataGridColumnHeader">
            <Setter Property="Height" Value="22"/>
            <Setter Property="Foreground" Value="Black" />            
            <Setter Property="FontSize" Value="10" />
            <Setter Property="FontFamily" Value="Arial" />
            <Setter Property="FontWeight" Value="Bold"/>
        </Style>
    </Application.Resources>
</Application>

Answer 1

存在空列，因为其他列未填充整个DataGrid宽度。要更改最后一列的Width="*"集，

<DataGridTextColumn Header="Description" Width="*" Binding="{Binding Path=Description}"/>

Answer 2

如果您不希望将其水平拉伸，可以将HorizontalAlignment的{{1}}属性设置为DataGrid：

Left

为什么WPF DataGrid中显示其他列

2 个答案: