• [C1] 仿 Excel 实现(C1FlexGrid)


    一  分析阶段

    根据 Excel 表格区域的划分,如下图,基本上以4行*3列的框架搭建;

    image

    第一行为列头区域     ==>  C1FlexGrid.ColumnHeaders

    第二行为单元格区域  ==>  C1FlexGrid.Cells

    第三行为列尾区域     ==>  C1FlexGrid.ColumnFooters

    第四行为横向滚动条区域,在 Excel 里还有工作簿页签等;

    第一列为行头区域     ==>  C1FlexGrid.RowHeaders

    第二列为单元格区域

    第三列为纵向滚动条区域;

    在 CFlexGrid 里还有 BottomLeftCells,TopLeftCells 两个区域,楼主做了一个 Demo,然后把各个区域用背景色标识区域,如下图:

    image

    二  扩展 C1FlexGrid 框架

    在 Silverlight 中新建一个模版化控件,

    image

    将该模版化控件继承于 C1FlexGrid,并在构造函数中默认初始化50行10列;代码如下:

    public class SLFlexGridExt : C1FlexGrid
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        public SLFlexGridExt()
        {
            this.DefaultStyleKey = typeof(SLFlexGridExt)
            
            // 默认添加50行10列
            for (int i = 0; i < 50; i++)
            {
                Rows.Add(new Row())
            }
            for (int c = 0; c < 10; c++)
            {
                Columns.Add(new Column())
            }
        }
    }
    
    View Code

    接着在自动生成的 Themes/Generic.xaml 中对该模版化控件进行样式设置;

    <!-- style for main control -->
    <Style TargetType="local:SLFlexGridExt">
        <!-- properties -->
        <Setter Property="FontFamily" Value="Arial" />
                <Setter Property="Background" Value="Transparent" />
                <Setter Property="RowBackground" Value="{StaticResource _RowBackground}" />
                <Setter Property="AlternatingRowBackground" Value="{StaticResource _AlternatingRowBackground}" />
                <Setter Property="HeaderGridLinesBrush" Value="{StaticResource _HeaderGridLinesBrush}" />
                <Setter Property="GridLinesBrush" Value="{StaticResource _GridLinesBrush}" />
                <Setter Property="FrozenLinesBrush" Value="{StaticResource _FrozenLinesBrush}" />
                <Setter Property="GroupRowBackground" Value="{StaticResource _GroupRowBackground}" />
                <Setter Property="CursorBackground" Value="{StaticResource _CursorBackground}" />
                <Setter Property="SelectionBackground" Value="{StaticResource _SelectionBackground}" />
                <Setter Property="RowHeaderBackground" Value="{StaticResource _RowHeaderBackground}" />
                <Setter Property="ColumnHeaderBackground" Value="{StaticResource _ColumnHeaderBackground}" />
                <Setter Property="TopLeftCellBackground" Value="{StaticResource _TopLeftCellBackground}" />
                <Setter Property="BottomRightCellBackground" Value="{StaticResource _BottomRightCellBackground}" />
    
                <!-- Excel behavior by default -->
                <Setter Property="AllowDragging" Value="None" />
                <Setter Property="AllowSorting" Value="False" />
                <Setter Property="AllowResizing" Value="Both" />
                <Setter Property="ShowMarquee" Value="True" />
                <Setter Property="GridLinesVisibility" Value="All" />
                <Setter Property="ClipboardCopyMode" Value="ExcludeHeader" />
                <Setter Property="ClipboardPasteMode" Value="ExcludeHeader" />
                <Setter Property="KeyActionTab" Value="MoveAcross" />
                <Setter Property="AreRowGroupHeadersFrozen" Value="False" />
    
                <Setter Property="Template">
                    <Setter.Value>
                            <ControlTemplate TargetType="local:SLFlexGridExt">
                                    <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
                                        <Grid x:Name="_root">
                                                <Grid.RowDefinitions>
                                                        <RowDefinition Height="Auto" />
                                                        <RowDefinition Height="*" />
                                                        <RowDefinition Height="Auto" />
                                                        <RowDefinition Height="Auto" />
                                                </Grid.RowDefinitions>
                                                <Grid.ColumnDefinitions>
                                                        <ColumnDefinition Width="Auto" />
                                                        <ColumnDefinition Width="*" />
                                                        <ColumnDefinition Width="Auto" />
                                                </Grid.ColumnDefinitions>
                                                <!-- vertical scrollbar -->
                                                <ScrollBar x:Name="_sbV" Orientation="Vertical" Grid.Column="2" Grid.RowSpan="2" />
                                                <!-- horizontal scrollbar -->
                                                <ScrollBar x:Name="_sbH" Orientation="Horizontal" Grid.Row="3" Grid.ColumnSpan="3" />
                                        </Grid>
                                    </Border>
                            </ControlTemplate>
                    </Setter.Value>
                </Setter>
    </Style>
    
    View Code

    这样以后就可以在其他界面里添加该扩展的 C1FlexGrid 控件,

    先添加该扩展控件所在命名空间:

    xmlns:my="clr-namespace:Memento.SLFlexGrid;assembly=SLFlexGrid"

    然后添加该控件

    <my:SLFlexGridExt x:Name="flex" Grid.Row="2" Margin="0 4 0 0" />

    即可,预览效果如下图:

    image

    现在还是跟未扩展前的 C1FlexGrid 差不多,

    接下来就要像 Excel 那样,在左下角加入切换工作簿的两个按钮,和工作簿页签的 TabControl,以及添加新工作簿的按钮,

    image

    只要在之前扩展的基础上,修改 Themes/Generic.xaml,定义想要的样式布局即可:

    <Grid x:Name="_tabHolder" Grid.Row="3" Grid.ColumnSpan="2" Background="DarkGray">
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="auto" />
                <ColumnDefinition />
            </Grid.ColumnDefinitions>
            <StackPanel x:Name="_spButtonPanel" Orientation="Horizontal">
                <Button Height="20" Width="20" />
                <RepeatButton Height="20" Width="20" />
                <RepeatButton Height="20" Width="20" />
                <Button Height="20" Width="20" />
            </StackPanel>
            <c1:C1TabControl x:Name="_tabs" Grid.Column="1"  FontSize="12" Padding="0" Margin="0 -1 0 0" IsTabStop="False" TabItemShape="Sloped" TabStripPlacement="Bottom" TabStripOverlap="8" />
        </Grid>
    
        <!-- horizontal scrollbar -->
        <ScrollBar x:Name="_sbH" Orientation="Horizontal" Grid.Column="2" />
    </Grid>
    
    
    View Code

    效果如下图,这里楼主是按照 ComponentOne 官网提供的 ExcelBook.5Demo 里的样式设计的,现在还未加上工作簿,所以中间是空白部分,左边的按钮可在后期定义为工作簿的切换,还有一个新增工作簿,看心情实现吧我不知道

    image

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  • 原文地址:https://www.cnblogs.com/memento/p/4415267.html
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