回答編集履歴
1
見直しキャンペーン中
answer
CHANGED
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> これを特定のセルを指定することは可能でしょうか？
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`GridViewColumn.CellTemplate`で変更することになります。
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-
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雑で申し訳ないですが、色の変更までの例です。
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```
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<Window
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x:Class="Questions248072.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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Title="MainWindow"
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Width="800"
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Height="450">
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<Grid>
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<ListView ItemsSource="{Binding Users}">
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<ListView.Resources>
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<ContextMenu x:Key="ContextMenu">
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<MenuItem
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Click="MenuItem_Click"
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Header="通常"
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IsChecked="{Binding IsWhite, Mode=OneWay}" />
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<MenuItem
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Click="MenuItem_Click"
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Header="黄色"
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IsChecked="{Binding IsYellow, Mode=OneWay}" />
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<MenuItem
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Click="MenuItem_Click"
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Header="赤"
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IsChecked="{Binding IsRed, Mode=OneWay}" />
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</ContextMenu>
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</ListView.Resources>
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<ListView.ItemContainerStyle>
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<Style TargetType="{x:Type ListViewItem}">
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<Setter Property="HorizontalContentAlignment" Value="Stretch" />
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<Setter Property="ContextMenu" Value="{StaticResource ContextMenu}" />
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</Style>
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</ListView.ItemContainerStyle>
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<ListView.View>
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<GridView>
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<GridViewColumn
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Width="170"
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DisplayMemberBinding="{Binding No}"
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Header="No" />
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<GridViewColumn Width="80" Header="Name">
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<GridViewColumn.CellTemplate>
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<DataTemplate>
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<Border x:Name="bg" Margin="-6,0,-6,0">
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<TextBlock Margin="6,0,6,0" Text="{Binding Name}" />
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</Border>
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<DataTemplate.Triggers>
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<DataTrigger Binding="{Binding BkColor}" Value="Red">
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<Setter TargetName="bg" Property="Background" Value="Red" />
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</DataTrigger>
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<DataTrigger Binding="{Binding BkColor}" Value="Yellow">
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<Setter TargetName="bg" Property="Background" Value="#FE0" />
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</DataTrigger>
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</DataTemplate.Triggers>
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</DataTemplate>
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</GridViewColumn.CellTemplate>
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</GridViewColumn>
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<GridViewColumn
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Width="80"
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DisplayMemberBinding="{Binding Data}"
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Header="Data" />
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</GridView>
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</ListView.View>
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</ListView>
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</Grid>
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</Window>
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```
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```
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.Runtime.CompilerServices;
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using System.Windows;
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using System.Windows.Controls;
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namespace Questions248072
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{
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public class User : INotifyPropertyChanged
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{
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public string No { get; set; }
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public string Name { get; set; }
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public string Data { get; set; }
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public string BkColor { get => _BkColor; set => Set(ref _BkColor, value, null); } // 面倒なので全プロパティ発砲
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public string _BkColor;
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// 全くイケていないがコンバータを書くより手軽なので。。。
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public bool IsRed => BkColor == "Red";
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public bool IsYellow => BkColor == "Yellow";
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public bool IsWhite => !IsRed && !IsYellow;
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#region INotifyPropertyChanged
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public event PropertyChangedEventHandler PropertyChanged;
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protected bool Set<T>(ref T storage, T value, [CallerMemberName] string propertyName = null)
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{
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if(Equals(storage, value)) return false;
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storage = value;
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OnPropertyChanged(propertyName);
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return true;
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}
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protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
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=> PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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#endregion
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}
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public partial class MainWindow : Window
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{
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public ObservableCollection<User> Users { get; }
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public MainWindow()
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{
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InitializeComponent();
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Users = new ObservableCollection<User>
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{
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new User{ No = "WPF C# VS2015", Name = "aaa", Data = "bbb", BkColor = "Red", },
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new User{ No = "WPF C# VS2017", Name = "aaa", Data = "bbb", BkColor = "Yellow", },
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new User{ No = "WPF C# VS2019", Name = "aaa", Data = "bbb", },
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};
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DataContext = this;
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}
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private void MenuItem_Click(object sender, RoutedEventArgs e)
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{
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if(sender is MenuItem menuItem)
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{
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if(menuItem.DataContext is User user)
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{
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switch(menuItem.Header)
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{
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case "通常":
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user.BkColor = "";
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break;
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case "黄色":
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user.BkColor = "Yellow";
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break;
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case "赤":
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user.BkColor = "Red";
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break;
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}
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}
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}
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}
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}
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}
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```
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155
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1
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> これを特定のセルを指定することは可能でしょうか？
|
|
2
|
+
|
|
3
|
+
`GridViewColumn.CellTemplate`で変更することになります。
|
|
4
|
+
|
|
5
|
+
雑で申し訳ないですが、色の変更までの例です。
|
|
6
|
+
```xml
|
|
7
|
+
<Window
|
|
8
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+
x:Class="Questions248072.MainWindow"
|
|
9
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+
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
|
|
10
|
+
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
|
|
11
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+
Title="MainWindow"
|
|
12
|
+
Width="800"
|
|
13
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+
Height="450">
|
|
14
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+
<Grid>
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|
15
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+
<ListView ItemsSource="{Binding Users}">
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|
16
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+
<ListView.Resources>
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17
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+
|
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18
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+
<ContextMenu x:Key="ContextMenu">
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19
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+
<MenuItem
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20
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Click="MenuItem_Click"
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21
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Header="通常"
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22
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IsChecked="{Binding IsWhite, Mode=OneWay}" />
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23
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<MenuItem
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24
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Click="MenuItem_Click"
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25
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Header="黄色"
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26
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IsChecked="{Binding IsYellow, Mode=OneWay}" />
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27
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<MenuItem
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28
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Click="MenuItem_Click"
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29
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Header="赤"
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30
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IsChecked="{Binding IsRed, Mode=OneWay}" />
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31
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</ContextMenu>
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32
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+
</ListView.Resources>
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|
33
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+
|
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34
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+
<ListView.ItemContainerStyle>
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|
35
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+
<Style TargetType="{x:Type ListViewItem}">
|
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36
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+
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
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37
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+
<Setter Property="ContextMenu" Value="{StaticResource ContextMenu}" />
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38
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</Style>
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39
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+
</ListView.ItemContainerStyle>
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40
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+
|
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41
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+
<ListView.View>
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42
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+
<GridView>
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43
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+
<GridViewColumn
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44
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Width="170"
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45
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DisplayMemberBinding="{Binding No}"
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46
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Header="No" />
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47
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+
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48
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+
<GridViewColumn Width="80" Header="Name">
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49
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+
<GridViewColumn.CellTemplate>
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50
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+
<DataTemplate>
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51
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+
<Border x:Name="bg" Margin="-6,0,-6,0">
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52
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<TextBlock Margin="6,0,6,0" Text="{Binding Name}" />
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53
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</Border>
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54
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<DataTemplate.Triggers>
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55
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<DataTrigger Binding="{Binding BkColor}" Value="Red">
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56
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<Setter TargetName="bg" Property="Background" Value="Red" />
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57
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</DataTrigger>
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58
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<DataTrigger Binding="{Binding BkColor}" Value="Yellow">
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59
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<Setter TargetName="bg" Property="Background" Value="#FE0" />
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</DataTrigger>
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</DataTemplate.Triggers>
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</DataTemplate>
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</GridViewColumn.CellTemplate>
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64
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</GridViewColumn>
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65
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+
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66
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<GridViewColumn
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67
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Width="80"
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68
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DisplayMemberBinding="{Binding Data}"
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69
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Header="Data" />
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70
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</GridView>
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71
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</ListView.View>
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72
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</ListView>
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73
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</Grid>
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74
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</Window>
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75
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+
```
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76
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+
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77
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```cs
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78
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+
using System.Collections.ObjectModel;
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|
79
|
+
using System.ComponentModel;
|
|
80
|
+
using System.Runtime.CompilerServices;
|
|
81
|
+
using System.Windows;
|
|
82
|
+
using System.Windows.Controls;
|
|
83
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+
|
|
84
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+
namespace Questions248072
|
|
85
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+
{
|
|
86
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+
public class User : INotifyPropertyChanged
|
|
87
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+
{
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|
88
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+
public string No { get; set; }
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|
89
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+
public string Name { get; set; }
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|
90
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+
public string Data { get; set; }
|
|
91
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+
public string BkColor { get => _BkColor; set => Set(ref _BkColor, value, null); } // 面倒なので全プロパティ発砲
|
|
92
|
+
public string _BkColor;
|
|
93
|
+
|
|
94
|
+
// 全くイケていないがコンバータを書くより手軽なので。。。
|
|
95
|
+
public bool IsRed => BkColor == "Red";
|
|
96
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+
public bool IsYellow => BkColor == "Yellow";
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|
97
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+
public bool IsWhite => !IsRed && !IsYellow;
|
|
98
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+
|
|
99
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+
#region INotifyPropertyChanged
|
|
100
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+
public event PropertyChangedEventHandler PropertyChanged;
|
|
101
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+
protected bool Set<T>(ref T storage, T value, [CallerMemberName] string propertyName = null)
|
|
102
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+
{
|
|
103
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+
if(Equals(storage, value)) return false;
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104
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storage = value;
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105
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OnPropertyChanged(propertyName);
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106
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return true;
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107
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}
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108
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protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
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109
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=> PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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110
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+
#endregion
|
|
111
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}
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|
112
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+
|
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113
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public partial class MainWindow : Window
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|
114
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{
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115
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public ObservableCollection<User> Users { get; }
|
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116
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+
|
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117
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public MainWindow()
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118
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+
{
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119
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InitializeComponent();
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120
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+
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121
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Users = new ObservableCollection<User>
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122
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{
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123
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new User{ No = "WPF C# VS2015", Name = "aaa", Data = "bbb", BkColor = "Red", },
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124
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+
new User{ No = "WPF C# VS2017", Name = "aaa", Data = "bbb", BkColor = "Yellow", },
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125
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+
new User{ No = "WPF C# VS2019", Name = "aaa", Data = "bbb", },
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126
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};
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127
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+
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128
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DataContext = this;
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129
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}
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130
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+
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131
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private void MenuItem_Click(object sender, RoutedEventArgs e)
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132
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+
{
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133
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+
if(sender is MenuItem menuItem)
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134
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+
{
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135
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+
if(menuItem.DataContext is User user)
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136
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{
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137
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switch(menuItem.Header)
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138
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{
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139
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case "通常":
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140
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user.BkColor = "";
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141
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break;
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142
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case "黄色":
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143
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user.BkColor = "Yellow";
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144
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break;
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145
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case "赤":
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146
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user.BkColor = "Red";
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147
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break;
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148
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+
}
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149
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+
}
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150
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}
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151
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}
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152
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}
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153
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}
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154
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```
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155
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+
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156
156
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