如何在WPF 4 DataGrid 控件中实现样式设置

如何在WPF 4 DataGrid 控件中实现样式设置

涉及到ColumnHeader、RowHeader、Row、Cell 的各种样式设置。

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。