主页 / 问题 / 1567345
Accepted
yava43
Asked:2024-02-21 16:24:57 +0800 CST2024-02-21 16:24:57 +0800 CST

如何获取列内、样式内、日期触发器内的 ItemSource 属性？

  • 772

您需要获取 FilePath 属性并检查它是否为空！

<DataGridTemplateColumn Header="Ссылка">
    <DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
            <TextBlock>
                <Button Command="{Binding DataContext.GetHyperLinkCommand, RelativeSource={RelativeSource AncestorType=DataGrid}}" CommandParameter="{Binding Filepath}" Content="{Binding Filepath}" 
                    Style="{StaticResource HyperlinkStyledButton }"/>
                <TextBlock.Style>
                    <Style TargetType="TextBlock">
                        <Setter Property="Visibility" Value="Visible"/>
                        <Style.Triggers>
                            <DataTrigger Binding="{Binding Filepath, RelativeSource={RelativeSource Mode=PreviousData}}" Value="{x:Null}">
                                <Setter Property="Visibility" Value="Hidden"/>
                            </DataTrigger>
                        </Style.Triggers>
                    </Style>
                </TextBlock.Style>
            </TextBlock>
        </DataTemplate>
    </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
wpf

1 个回答

  1. Best Answer

    很多奇怪的事情，我们来做吧

    <DataGridTemplateColumn Header="Ссылка">
    <DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
            <Button Command="{Binding DataContext.GetHyperLinkCommand, RelativeSource={RelativeSource AncestorType=DataGrid}}" CommandParameter="{Binding Filepath}" Content="{Binding Filepath}">
                <Button.Style>
                    <Style TargetType="Button" BasedOn="{StaticResource HyperlinkStyledButton}">
                        <Setter Property="Visibility" Value="Visible"/>
                        <Style.Triggers>
                            <DataTrigger Binding="{Binding Filepath}" Value="{x:Null}">
                                <Setter Property="Visibility" Value="Hidden"/>
                            </DataTrigger>
                        </Style.Triggers>
                    </Style>
                </Button.Style>
            </Button>
        </DataTemplate>
    </DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>

    在这里您进行了绑定Content="{Binding Filepath}"，并且绑定在触发器中以相同的方式工作。

    • 1

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