C# WPF数据网格动态样式
我在WPF应用程序中有一个DataGrid控件。我希望能够在运行时,从组合框中选择一个值,单击一个按钮并高亮显示DataGrid中满足此条件的所有行的背景色。这在Windows窗体中的代码隐藏中非常容易做到,但在WPF中我无法理解 感谢您的帮助。C# WPF数据网格动态样式,c#,wpf,C#,Wpf,我在WPF应用程序中有一个DataGrid控件。我希望能够在运行时,从组合框中选择一个值,单击一个按钮并高亮显示DataGrid中满足此条件的所有行的背景色。这在Windows窗体中的代码隐藏中非常容易做到,但在WPF中我无法理解 感谢您的帮助。 谢谢您好,我创建了一个示例,通过使用触发器和valueconverter解决了这个问题。 基本上,我在gridcell上有一个触发器,它绑定到组合框的selecteditem。更改选择时,触发器触发,单元格使用valueconverter查看selec
谢谢您好,我创建了一个示例,通过使用触发器和valueconverter解决了这个问题。 基本上,我在gridcell上有一个触发器,它绑定到组合框的selecteditem。更改选择时,触发器触发,单元格使用valueconverter查看selecteditem是否与网格单元格的值相同 MainWindow.xaml
<Window x:Class="ComboBoxFilter.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:ComboBoxFilter="clr-namespace:ComboBoxFilter" Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<ComboBoxFilter:NameValueConverter x:Key="NameValueConverter" />
</Window.Resources>
<Grid>
<StackPanel>
<ComboBox ItemsSource="{Binding Names}" SelectedItem="{Binding SelectedPerson, Mode=TwoWay}" x:Name="TheComboBox" />
<DataGrid AutoGenerateColumns="True" ItemsSource="{Binding Names}" x:Name="DataGrid" >
<DataGrid.CellStyle>
<Style TargetType="{x:Type DataGridCell}">
<Style.Triggers>
<DataTrigger Value="True" >
<DataTrigger.Binding>
<MultiBinding Converter="{StaticResource NameValueConverter}">
<Binding Path="SelectedItem.Name" ElementName="TheComboBox" Mode="TwoWay" />
<Binding Path="Name" />
</MultiBinding>
</DataTrigger.Binding>
<Setter Property="Background" Value="Green" />
</DataTrigger>
</Style.Triggers>
</Style>
</DataGrid.CellStyle>
</DataGrid>
</StackPanel>
</Grid>
视图模型
using System.Collections.ObjectModel;
using System.ComponentModel;
namespace ComboBoxFilter
{
public class ViewModel : INotifyPropertyChanged
{
public ViewModel()
{
Names = new ObservableCollection<Person>
{
new Person {Name = "Andy"},
new Person {Name = "hkon"},
new Person {Name = "dandy"},
new Person {Name = "Andy"}
};
}
private Person _selectedPerson;
public Person SelectedPerson
{
get { return _selectedPerson; }
set { _selectedPerson = value; NotifyPropertyChanged("SelectedPerson"); }
}
public ObservableCollection<Person> Names { get; set; }
public event PropertyChangedEventHandler PropertyChanged;
public void NotifyPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
public class Person
{
public string Name { get; set; }
public override string ToString()
{
return Name;
}
}
}
使用System.Collections.ObjectModel;
使用系统组件模型;
命名空间ComboxFilter
{
公共类视图模型:INotifyPropertyChanged
{
公共视图模型()
{
名称=新的ObservableCollection
{
新人{Name=“Andy”},
新人{Name=“hkon”},
新人{Name=“dandy”},
新人{Name=“Andy”}
};
}
私人(u selected Person);;
公众人士
{
获取{return\u selectedPerson;}
设置{u selectedPerson=value;NotifyPropertyChanged(“selectedPerson”);}
}
公共ObservableCollection名称{get;set;}
公共事件属性更改事件处理程序属性更改;
public void NotifyPropertyChanged(字符串propertyName)
{
if(PropertyChanged!=null)
{
PropertyChanged(这是新的PropertyChangedEventArgs(propertyName));
}
}
}
公共阶层人士
{
公共字符串名称{get;set;}
公共重写字符串ToString()
{
返回名称;
}
}
}
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Windows.Data;
namespace ComboBoxFilter
{
public class NameValueConverter : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
var string1 = values[0];
var string2 = values[1];
return string1 == string2;
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
}
using System.Collections.ObjectModel;
using System.ComponentModel;
namespace ComboBoxFilter
{
public class ViewModel : INotifyPropertyChanged
{
public ViewModel()
{
Names = new ObservableCollection<Person>
{
new Person {Name = "Andy"},
new Person {Name = "hkon"},
new Person {Name = "dandy"},
new Person {Name = "Andy"}
};
}
private Person _selectedPerson;
public Person SelectedPerson
{
get { return _selectedPerson; }
set { _selectedPerson = value; NotifyPropertyChanged("SelectedPerson"); }
}
public ObservableCollection<Person> Names { get; set; }
public event PropertyChangedEventHandler PropertyChanged;
public void NotifyPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
public class Person
{
public string Name { get; set; }
public override string ToString()
{
return Name;
}
}
}