数据库二进制文件上传源代码实现

第一步 页面布局   一个list  两个按钮（一个浏览，一个上传）
  <Grid Background="White" Grid.Row="1">
                  
                    <Grid.RowDefinitions>
                        <RowDefinition Height="30"/>
                        <RowDefinition Height="199"/>
                        <RowDefinition Height="30"/>
                        <RowDefinition/>
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="70"/>
                        <ColumnDefinition Width="70"/>
                        <ColumnDefinition Width="150"/>
                        <ColumnDefinition Width="190"/>
                        <ColumnDefinition />
                    </Grid.ColumnDefinitions>
                    <Label Content="材料名称：" Grid.Column="0"></Label>
                    <Label Name="lblmc" Grid.Column="1"></Label>
                    <Label Content="关键工序：原料查验"  Grid.Column="2"></Label>
                    <Label Content="小技巧：按下Ctrl键同时选择附件，可以多选。" Grid.Column="3" Grid.ColumnSpan="2" HorizontalAlignment="Right" Foreground="Red"></Label>
                        <Button Grid.Row="2" DockPanel.Dock="Top" Click="cmdOpen_Click" Width="100" Grid.ColumnSpan="5" Margin="0,0,250,0"    >浏览</Button>
                    <Button Width="100" Grid.Row="2"   Click="Button_Click"  Margin="250,0,0,0" Grid.ColumnSpan="5" >上传</Button> 
                    <ListBox Name="lstFiles" Grid.Row="1" Grid.ColumnSpan="5"></ListBox>
                </Grid>
第二步 后台代码  两个方法

  /// <summary>
        /// 选择附件
        /// </summary>
        /// <param name="sender"></param>