WPF 显示文件列表中使用 ListBox 变到ListView 最后使用DataGrid

　　　　　　WPF 显示文件列表中使用 ListBox 变到ListView 最后使用DataGrid

故事背景：

　　需要检索某目录下文件，并列出来，提供选择和其他功能。

第一版需求：

　　列出文件供选择即可，代码如下：

<ListBox Name="multiSelectFileLst" ItemsSource="{Binding FileList}" Grid.Row="1" Grid.Column="1" >
                    <ListBox.ItemTemplate >
                        <DataTemplate >
                            <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
                                <Border Margin="5,1,5,1" Padding="3" BorderBrush="Green"  BorderThickness="1" CornerRadius="2">
                                    <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
                                        <Grid.ColumnDefinitions>
                                            <ColumnDefinition Width="300" ></ColumnDefinition>
                                            <ColumnDefinition Width="Auto" ></ColumnDefinition>
                                            <ColumnDefinition Width="80" ></ColumnDefinition>
                                        </Grid.ColumnDefinitions>

                                        <CheckBox Content="{Binding FileName}" ToolTip="{Binding FileName}" IsChecked="{Binding IsSelected}"/>
                                        <Button Content="查看" Width="75" HorizontalAlignment="Left" Grid.Column="2"
                                                Command="{Binding DataContext.OpenFileCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ListBox}}" CommandParameter="{Binding ExcelFilePath}"  />

                                    </Grid>
                                </Border>
                            </Grid>

                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>

可取之处：

　　使用Border 画的边框还不错。

第二版需求：

　　需要添加文件的目录一项，因此要添加列标题，该用ListView实现，改动较小：

<ListView Name="multiSelectFileLst" ItemsSource="{Binding FileList}" Grid.Row="1" Grid.Column="1" >
                        <ListView.View>
                            <GridView >
                                <GridViewColumn Header="文件名">
                                    <GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <CheckBox Content="{Binding FileName}" ToolTip="{Binding FileName}" IsChecked="{Binding IsSelected}"/>
                                        </DataTemplate>
                                    </GridViewColumn.CellTemplate>
                                </GridViewColumn>
                                <GridViewColumn Header="文件目录">
                                    <GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <TextBlock Text="{Binding FolderPath}" ToolTip="{Binding FolderPath}" Foreground="Black" />
                                        </DataTemplate>
                                    </GridViewColumn.CellTemplate>
                                </GridViewColumn>
                                <GridViewColumn Header="查看文件">
                                    <GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <Button Content="查看" Width="75" HorizontalAlignment="Left"
                                                    Command="{Binding DataContext.OpenFileCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ListBox}}" CommandParameter="{Binding ExcelFilePath}"  />
                                        </DataTemplate>
                                    </GridViewColumn.CellTemplate>
                                </GridViewColumn>
                            </GridView>
                        </ListView.View>
                    </ListView>

最后，个人觉得默认样式不好看，改为使用actiprosoftware的ThemedDataGrid：

<datagrid:ThemedDataGrid Name="multiSelectFileLst" ItemsSource="{Binding FileList}" Grid.Row="1" Grid.Column="1"
                                             AutoGenerateColumns="False" CanUserAddRows="False" CanUserResizeRows="False" CanUserDeleteRows="False"
                                             AreRowDetailsFrozen="False" CanUserSortColumns="False" CanUserReorderColumns="False"
                                             HeadersVisibility="Column" SelectionUnit="FullRow"
                                             >

                        <datagrid:ThemedDataGrid.Columns>
                            <DataGridTemplateColumn Header="文件名" IsReadOnly="True" Width="auto">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <CheckBox Content="{Binding FileName}" ToolTip="{Binding FileName}" IsChecked="{Binding IsSelected}" Margin="0,0,20,0" />
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn >
                            <DataGridTemplateColumn Header="文件目录" IsReadOnly="True" Width="auto" >
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding FolderPath}" ToolTip="{Binding FolderPath}" Margin="20,0,20,0" />
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn >
                            <DataGridTemplateColumn Header="查看文件" IsReadOnly="True" Width="80" >
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <Button Content="查看" HorizontalAlignment="Left" Width="75"
                                                Command="{Binding DataContext.OpenFileCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ListBox}}"
                                                CommandParameter="{Binding ExcelFilePath}"  />
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn >
                        </datagrid:ThemedDataGrid.Columns>
                    </datagrid:ThemedDataGrid>

其中存在疑问：ListBox中的模板长度设置，没有随界面缩放，后续解决了补上。