转载---DataGrid自定义样式

转载自http://byte365.spaces.live.com/blog/cns!80BC0AFE1EC9BF2!430.entry

ColumnHeaderStyle 属性

     一般来讲列表头是用户首先注意的内容，那么如何在DataGrid 中设计一个美观的表头呢。我们既可以在<DataGrid>中通过<DataGrid.ColumnHeaderStyle>来全局定义；也可以针对个别列在<DataGrid.Columns>中通过<DataGridColumn.HeaderStyle>定义。

<DataGrid x:Name="dataGrid" ItemsSource="{Binding}" AutoGenerateColumns="False"
            SelectionUnit="CellOrRowHeader" IsReadOnly="True">
    <DataGrid.ColumnHeaderStyle>
        <Style TargetType="DataGridColumnHeader">
            <Setter Property="Background">
                <Setter.Value>
                    <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
                        <GradientStop Color="White" Offset="0"/>
                        <GradientStop Color="Yellow" Offset="0.5"/>
                        <GradientStop Color="White" Offset="1"/>
                    </LinearGradientBrush>
                </Setter.Value>
            </Setter>
            <Setter Property="Foreground" Value="Black"/>
            <Setter Property="FontSize" Value="13" />
        </Style>
    </DataGrid.ColumnHeaderStyle>

    <DataGrid.Columns>
        <DataGridTextColumn Header="Name" Binding="{Binding Name}">
            <DataGridColumn.HeaderStyle>
                <Style TargetType="DataGridColumnHeader">
                    <Setter Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
                                <GradientStop Color="White" Offset="0"/>
                                <GradientStop Color="SkyBlue" Offset="0.5"/>
                                <GradientStop Color="White" Offset="1"/>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="Foreground" Value="Black"/>
                    <Setter Property="FontSize" Value="13"/>
                    <Setter Property="Width" Value="80"/>
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="ToolTip" Value="Sort by Column"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </DataGridColumn.HeaderStyle>
        </DataGridTextColumn>
                
        <DataGridTextColumn Header="Age" Binding="{Binding Age}">
            <DataGridColumn.HeaderStyle>
                <Style TargetType="DataGridColumnHeader">
                    <Setter Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
                                <GradientStop Color="White" Offset="0"/>
                                <GradientStop Color="LightGreen" Offset="0.5"/>
                                <GradientStop Color="White" Offset="1"/>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="Foreground" Value="Black"/>
                    <Setter Property="FontSize" Value="13"/>
                    <Setter Property="Width" Value="50"/>
                </Style>
            </DataGridColumn.HeaderStyle>
        </DataGridTextColumn>

        <DataGridComboBoxColumn Header="Sex" 
                                SelectedItemBinding="{Binding Sex}" 
                                ItemsSource="{Binding Source={StaticResource sexEnum}}">
            <DataGridColumn.HeaderStyle>
                <Style TargetType="DataGridColumnHeader">
                    <Setter Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
                                <GradientStop Color="White" Offset="0"/>
                                <GradientStop Color="LightPink" Offset="0.5"/>
                                <GradientStop Color="White" Offset="1"/>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="Foreground" Value="Black"/>
                    <Setter Property="FontSize" Value="13"/>
                    <Setter Property="Width" Value="70"/>
                </Style>
            </DataGridColumn.HeaderStyle>
        </DataGridComboBoxColumn>
                
        <DataGridCheckBoxColumn Header="Pass Exam?" Width="100" 
                                Binding="{Binding Pass}"/>
                
        <DataGridHyperlinkColumn Header="Email" Width="150" 
                                 Binding="{Binding Email}"/>
    </DataGrid.Columns>
</DataGrid>

其效果如下图所示，Name、Age、Sex 列会按各自的样式显示。未定义样式的Pass Exam 和Email 列将按<DataGrid.ColumnHeaderStyle>全局定义显示，并且当鼠标移置到这两列上方时会有“Sort by Column”提示信息。

RowHeaderStyle 属性

     列表头介绍完了下面再来看看行表头，其定义方式与列表头相同，直接在<DataGrid>中加入<DataGrid.RowHeaderStyle>进行全局定义，见如下代码：

<DataGrid.RowHeaderStyle>
    <Style TargetType="DataGridRowHeader">
        <Setter Property="Content" Value=" ·¤"/>
        <Setter Property="Width" Value="10"/>
        <Setter Property="Background">
            <Setter.Value>
                <LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
                    <GradientStop Color="White" Offset="0"/>
                    <GradientStop Color="SkyBlue" Offset="1"/>
                </LinearGradientBrush>
            </Setter.Value>
        </Setter>
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="ToolTip" Value="Select this Row"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</DataGrid.RowHeaderStyle>

效果图：

RowStyle 属性

     接下来我们来为行设置样式，使每行的颜色变为蓝色，并且当鼠标移至行上方时，其背景颜色会变为灰色，文字颜色变为白色。

<DataGrid.RowStyle>
    <Style TargetType="DataGridRow">
        <Setter Property="Background" Value="LightBlue" />
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Background" Value="LightGray"/>
                <Setter Property="Foreground" Value="White"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</DataGrid.RowStyle>

效果图：

CellStyle 属性

     单元格部分我们继续制作一个动态样式，当鼠标点击单元格后，其背景色将变为绿色。

<DataGrid.CellStyle>
    <Style TargetType="DataGridCell">
        <Style.Triggers>
            <Trigger Property="IsSelected" Value="True">
                <Setter Property="Background" Value="SeaGreen"/>
            </Trigger>
        </Style.Triggers>
    </Style>
</DataGrid.CellStyle>

效果图：