我有一个简单的WPF应用程序,它在DataGrid
中显示reddit链接:
但是请注意,由于链接的颜色和行突出显示的颜色,选择行时DataGridHyperlinkColumn
中的链接不可见。
什么是解决此问题的好方法?更改链接文字颜色?更改行突出显示颜色吗?
如果可能,请以C#代码(而非XAML)显示您的建议,因为此应用程序未使用XAML。否则,可以使用XAML解决方案。我将其转换为C#。 :-)
作为参考,这是Title
列使用的代码:
var event_setter = new EventSetter()
{
Event = Hyperlink.ClickEvent,
Handler = (RoutedEventHandler)((sender, e) =>
{
System.Diagnostics.Process.Start((data_grid.SelectedItem as Link).Url);
})
};
var style = new Style();
style.Setters.Add(event_setter);
var hyperlink_column = new DataGridHyperlinkColumn()
{
Header = "Title",
Binding = new Binding("Title"),
ElementStyle = style,
Width = 600
};
data_grid.Columns.Add(hyperlink_column);
答案 0 :(得分:2)
您可以在Hyperlink
中添加隐式DataGrid
样式:
const string Xaml = "<Style TargetType=\"Hyperlink\" xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\">" +
"<Style.Triggers>" +
"<DataTrigger Binding=\"{Binding IsSelected, RelativeSource={RelativeSource AncestorType=DataGridCell}}\" Value=\"True\">" +
"<Setter Property=\"Foreground\" Value=\"White\" />" +
"</DataTrigger>" +
"</Style.Triggers>" +
"</Style>";
data_grid.Resources.Add(typeof(Hyperlink), System.Windows.Markup.XamlReader.Parse(Xaml) as Style);
data_grid.Columns.Add(hyperlink_column);
答案 1 :(得分:1)
可以使用DataGridHyperLink Column的Selector.IsSelected属性,并且当特定项目上的选择更改时,可以使用触发器更新样式。
<DataGridHyperlinkColumn.CellStyle>
<Style TargetType="{x:Type Hyperlink}">
<Setter Property="Foreground" Value="Blue"/>
<Style.Triggers>
<Trigger Property="Selector.IsSelected" Value="True">
<Trigger.Setters>
<!--change the value for the property based on your needs-->
<Setter Property="Foreground" Value="Yellow"/>
</Trigger.Setters>
</Trigger>
</Style.Triggers>
</Style>
</DataGridHyperlinkColumn.CellStyle>
答案 2 :(得分:0)
这是@ mm8提供的答案的一个版本,已从XAML转换为C#:
var data_trigger = new DataTrigger()
{
Binding = new Binding()
{
Path = new PropertyPath("IsSelected"),
RelativeSource = new RelativeSource() { AncestorType = typeof(DataGridCell) }
},
Value = true
};
data_trigger.Setters.Add(new Setter(ForegroundProperty, new SolidColorBrush(Colors.White)));
var style = new Style(typeof(Hyperlink));
style.Triggers.Add(data_trigger);
data_grid.Resources.Add(typeof(Hyperlink), style);
答案 3 :(得分:0)
这是@ mm8提供的答案的一个版本,它从XAML转换为C#,它使用一些extension methods来避免中间变量:
data_grid.Resources.Add(
typeof(Hyperlink),
new Style(typeof(Hyperlink))
.AddTrigger(
new DataTrigger()
{
Binding = new Binding()
{
Path = new PropertyPath("IsSelected"),
RelativeSource = new RelativeSource() { AncestorType = typeof(DataGridCell) }
},
Value = true
}
.AddSetter(new Setter(ForegroundProperty, new SolidColorBrush(Colors.White)))));
答案 4 :(得分:0)
纯XAML解决方案:
<DataGrid>
<DataGrid.Resources>
<Style TargetType="{x:Type Hyperlink}">
<Style.Triggers>
<DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=DataGridCell}}"
Value="True">
<DataTrigger.Setters>
<Setter Property="Foreground" Value="Yellow"/>
</DataTrigger.Setters>
</DataTrigger>
</Style.Triggers>
</Style>
</DataGrid.Resources>
<DataGrid.Columns>
<DataGridHyperlinkColumn Width="180"
Header="Url"
Binding="{Binding Path=Uri, Mode=OneWay}" />
</DataGrid.Columns>
</DataGrid>