wpf 资源字典中带有标题的多项目组合框？
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时间：2020-09-13 11:04:17 来源:igfitidea点击:
Multiple item combo box with headers in resource dictionary?
提问by Vishal
I have followed the accepted answer of thisquestion to define a multi-column combobox with headers.
我已经按照这个问题的公认答案定义了一个带有标题的多列组合框。
It was not working for me, so I made some changes to it and now it works. Here is the xaml to create a multi-column comboBox with headers.
它对我不起作用，所以我对其进行了一些更改，现在它可以工作了。这是创建带有标题的多列组合框的 xaml。
<Page.DataContext>
<vm:ItemsViewModel />
</Page.DataContext>
<Page.Resources>
<CollectionViewSource x:Key="UnitsCollection" Source="{Binding Units}" />
</Page.Resources>
<ComboBox Grid.Row="0" Grid.Column="4" Grid.ColumnSpan="2" Grid.IsSharedSizeScope="True"
x:Name="cbUnits" ItemsSource="{DynamicResource Items}" IsEditable="True" TextSearch.TextPath="Symbol"
SelectedValue="{Binding SelectedUnit}" SelectedValuePath="UnitID">
<ComboBox.Resources>
<CompositeCollection x:Key="Items">
<ComboBoxItem IsEnabled="False">
<Grid TextElement.FontWeight="Bold">
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="A" />
<ColumnDefinition Width="50" />
<ColumnDefinition SharedSizeGroup="B" />
</Grid.ColumnDefinitions>
<Grid.Children>
<TextBlock Grid.Column="0" Text="Name" />
<TextBlock Grid.Column="2" Text="Symbol" />
</Grid.Children>
</Grid>
</ComboBoxItem>
<Separator />
<CollectionContainer Collection="{Binding Source={StaticResource UnitsCollection}}" />
</CompositeCollection>
<DataTemplate DataType="{x:Type models:Unit}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="A" />
<ColumnDefinition Width="50" />
<ColumnDefinition SharedSizeGroup="B" />
</Grid.ColumnDefinitions>
<Grid.Children>
<TextBlock Grid.Column="0" Text="{Binding Name}" />
<TextBlock Grid.Column="2" Text="{Binding Symbol}" />
</Grid.Children>
</Grid>
</DataTemplate>
</ComboBox.Resources>
</ComboBox>
</Page>
Now, I would like to define the section between <ComboBox.Resources>in a resource dictionary, so that I would not have to write it again and again. I also want to add two more functionalities to the resource dictionary:
现在，我想<ComboBox.Resources>在资源字典中定义之间的部分，这样我就不必一次又一次地编写它。我还想向资源字典添加另外两个功能：
Bind the Column-names and the Column-values somehow to something(I don't know), so that any two column combobox can use this resource dictionary.
If possible I would like to add some logic in resource dictionary so that the same resource dictionary can be used for any combobox with any number of columns.
以某种方式将 Column-names 和 Column-values 绑定到某个东西（我不知道），这样任何两列组合框都可以使用这个资源字典。
如果可能，我想在资源字典中添加一些逻辑，以便相同的资源字典可以用于具有任意数量列的任何组合框。
I think somebody could guide me to the right direction and if someone has done this thing in past then I may get some help for that, which is another intension of asking this question.
我认为有人可以指导我走向正确的方向，如果有人过去做过这件事，那么我可能会得到一些帮助，这是问这个问题的另一个意图。
If my above quesitons are not solved using only xaml, then also I would happily accept the solution.
如果仅使用 xaml 无法解决我的上述问题，那么我也很乐意接受该解决方案。
回答by Heena Patil
Try this may be this will help you.I have just edited combobox style.Please run this code separatly.
试试这个可能对你有帮助。我刚刚编辑了组合框样式。请单独运行此代码。
Xaml code
Xaml 代码
<Window.Resources>
<!--header text-->
<TextBlock x:Key="header1" Text="Index"></TextBlock>
<TextBlock x:Key="header2" Text="Name"></TextBlock>
<TextBlock x:Key="header3" Text="Symbol"></TextBlock>
<!--Toggle Button Template-->
<ControlTemplate x:Key="ComboBoxToggleButton" TargetType="ToggleButton">
<Grid x:Name="gd">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="30" />
</Grid.ColumnDefinitions>
<Border x:Name="Border" SnapsToDevicePixels="True" Grid.ColumnSpan="2" Background="White" BorderBrush="LightGray" BorderThickness="1"/>
<Border x:Name="Boredr1" SnapsToDevicePixels="True" Grid.Column="0" Margin="1" Background="White" BorderBrush="LightGray" BorderThickness="0,0,1,0" />
<Path x:Name="Arrow" SnapsToDevicePixels="True" Grid.Column="1" Fill="Black" HorizontalAlignment="Center" VerticalAlignment="Center" Data="M 0 0 L 6 6 L 12 0 Z"/>
<ContentPresenter Grid.Column="0" TextElement.Foreground="Orange"></ContentPresenter>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="ToggleButton.IsMouseOver" Value="True">
<Setter TargetName="Border" Property="BorderBrush" Value="Black"/>
<Setter TargetName="Boredr1" Property="BorderBrush" Value="Black"/>
</Trigger>
<Trigger Property="ToggleButton.IsChecked" Value="True">
<Setter TargetName="Arrow" Property="Data" Value="M 0 0 L 5 5 L 10 0"/>
<Setter TargetName="Arrow" Property="Fill" Value="White"/>
<Setter TargetName="Arrow" Property="Stroke" Value="Black"/>
<Setter TargetName="Arrow" Property="StrokeThickness" Value="1.5"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter TargetName="gd" Property="Visibility" Value="Visible"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
<!--TextBox Template-->
<ControlTemplate x:Key="ComboBoxTextBox" TargetType="TextBox">
<ScrollViewer x:Name="PART_ContentHost" Focusable="False" />
</ControlTemplate>
<!--2 column combobox-->
<Style x:Key="2_Column_Cmb" TargetType="ComboBox">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ComboBox">
<Grid>
<ToggleButton Name="ToggleButton" Foreground="Black" Template="{StaticResource ComboBoxToggleButton}" Focusable="false" IsChecked="{Binding Path=IsDropDownOpen,Mode=TwoWay,RelativeSource={RelativeSource TemplatedParent}}" ClickMode="Press">
</ToggleButton>
<ContentPresenter Name="ContentSite" IsHitTestVisible="False" Content="{TemplateBinding SelectionBoxItem}" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Margin="3,3,23,3" VerticalAlignment="Center" HorizontalAlignment="Left" />
<TextBox OverridesDefaultStyle="True" SelectionBrush="Gray" CaretBrush="Black" Margin="0,0,30,0" TextWrapping="NoWrap" x:Name="PART_EditableTextBox" FontFamily="Segoe UI Dark" Foreground="Black" Style="{x:Null}" Template="{StaticResource ComboBoxTextBox}" HorizontalAlignment="Left" Focusable="True" VerticalAlignment="Center" FontSize="15" Visibility="Hidden" IsReadOnly="{TemplateBinding IsReadOnly}"/>
<Popup Name="Popup" Grid.ColumnSpan="2" Placement="Bottom" IsOpen="{TemplateBinding IsDropDownOpen}" AllowsTransparency="True" Focusable="False" PopupAnimation="Slide">
<Grid Name="DropDown" SnapsToDevicePixels="True" MaxWidth="{TemplateBinding ActualWidth}" MinWidth="{TemplateBinding ActualWidth}" MaxHeight="{TemplateBinding MaxDropDownHeight}">
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="30"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<Grid Background="LightGray" Grid.Row="0" Grid.Column="0">
<TextBlock Text="{Binding Source={StaticResource header2},Path=Text}" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Black" FontFamily="Segoe Ui Dark" FontSize="15" ></TextBlock>
</Grid>
<Grid Background="LightGray" Grid.Row="0" Grid.Column="1">
<TextBlock Text="{Binding Source={StaticResource header3},Path=Text}" Background="LightGray" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Black" FontFamily="Segoe Ui Dark" FontSize="15"></TextBlock>
</Grid>
<Border Grid.ColumnSpan="2" Grid.RowSpan="2" x:Name="DropDownBorder" SnapsToDevicePixels="True" Background="Transparent" MaxWidth="{TemplateBinding ActualWidth}" BorderThickness="1" BorderBrush="LightGray"/>
<ScrollViewer Grid.ColumnSpan="2" ScrollViewer.CanContentScroll="False" Grid.Row="1" SnapsToDevicePixels="True">
<StackPanel IsItemsHost="True" Background="Transparent">
</StackPanel>
</ScrollViewer>
</Grid>
</Popup>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsEditable" Value="true">
<Setter Property="IsTabStop" Value="false"/>
<Setter TargetName="PART_EditableTextBox" Property="Background" Value="White"/>
<Setter TargetName="PART_EditableTextBox" Property="Visibility" Value="Visible"/>
<Setter TargetName="PART_EditableTextBox" Property="Foreground" Value="Black"/>
<Setter TargetName="ContentSite" Property="Visibility" Value="Hidden"/>
</Trigger>
<Trigger Property="HasItems" Value="false">
<Setter TargetName="DropDownBorder" Property="MinHeight" Value="95"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="IsTabStop" Value="false"/>
<Setter TargetName="PART_EditableTextBox" Property="Visibility" Value="Visible"/>
<Setter TargetName="PART_EditableTextBox" Property="Foreground" Value="Black"/>
<Setter TargetName="PART_EditableTextBox" Property="IsEnabled" Value="False"/>
<Setter TargetName="PART_EditableTextBox" Property="Background" Value="White"/>
<Setter TargetName="ContentSite" Property="Visibility" Value="Hidden"/>
</Trigger>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
<Trigger SourceName="Popup" Property="Popup.AllowsTransparency" Value="true">
<Setter TargetName="DropDownBorder" Property="Margin" Value="0,2,0,0"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
</Style.Triggers>
</Style>
<!--3 column combobox-->
<Style x:Key="3_Column_Cmb" TargetType="ComboBox">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Disabled"/>
<Setter Property="Height" Value="40"/>
<Setter Property="MinWidth" Value="120"/>
<Setter Property="MinHeight" Value="20"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ComboBox">
<Grid>
<ToggleButton Name="ToggleButton" Foreground="Black" Template="{StaticResource ComboBoxToggleButton}" Focusable="false" IsChecked="{Binding Path=IsDropDownOpen,Mode=TwoWay,RelativeSource={RelativeSource TemplatedParent}}" ClickMode="Press">
</ToggleButton>
<ContentPresenter Name="ContentSite" IsHitTestVisible="False" Content="{TemplateBinding SelectionBoxItem}" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Margin="3,3,23,3" VerticalAlignment="Center" HorizontalAlignment="Left" />
<TextBox OverridesDefaultStyle="True" SelectionBrush="Gray" CaretBrush="Black" Margin="0,0,30,0" TextWrapping="NoWrap" x:Name="PART_EditableTextBox" FontFamily="Segoe UI Dark" Foreground="Black" Style="{x:Null}" Template="{StaticResource ComboBoxTextBox}" HorizontalAlignment="Left" Focusable="True" VerticalAlignment="Center" FontSize="15" Visibility="Hidden" IsReadOnly="{TemplateBinding IsReadOnly}"/>
<Popup Name="Popup" Grid.ColumnSpan="2" Placement="Bottom" IsOpen="{TemplateBinding IsDropDownOpen}" AllowsTransparency="True" Focusable="False" PopupAnimation="Slide">
<ContentControl Name="DropDown" SnapsToDevicePixels="True" MaxWidth="{TemplateBinding ActualWidth}" MinWidth="{TemplateBinding ActualWidth}" MaxHeight="{TemplateBinding MaxDropDownHeight}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="30"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<Grid Background="LightGray" Grid.Row="0" Grid.Column="0">
<TextBlock Text="{Binding Source={StaticResource header1},Path=Text}" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Black" FontFamily="Segoe Ui Dark" FontSize="15" ></TextBlock>
</Grid>
<Grid Background="LightGray" Grid.Row="0" Grid.Column="1">
<TextBlock Text="{Binding Source={StaticResource header2},Path=Text}" Background="LightGray" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Black" FontFamily="Segoe Ui Dark" FontSize="15"></TextBlock>
</Grid>
<Grid Background="LightGray" Grid.Row="0" Grid.Column="2">
<TextBlock Text="{Binding Source={StaticResource header3},Path=Text}" Background="LightGray" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Black" FontFamily="Segoe Ui Dark" FontSize="15"></TextBlock>
</Grid>
<Border Grid.ColumnSpan="3" Grid.RowSpan="2" x:Name="DropDownBorder" SnapsToDevicePixels="True" Background="Transparent" MaxWidth="{TemplateBinding ActualWidth}" BorderThickness="1" BorderBrush="LightGray"/>
<ScrollViewer Grid.ColumnSpan="3" ScrollViewer.CanContentScroll="False" Grid.Row="1" Margin="0,0,0,0" SnapsToDevicePixels="True">
<StackPanel IsItemsHost="True" Background="Transparent">
</StackPanel>
</ScrollViewer>
</Grid>
</ContentControl>
</Popup>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsEditable" Value="true">
<Setter Property="IsTabStop" Value="false"/>
<Setter TargetName="PART_EditableTextBox" Property="Background" Value="White"/>
<Setter TargetName="PART_EditableTextBox" Property="Visibility" Value="Visible"/>
<Setter TargetName="PART_EditableTextBox" Property="Foreground" Value="Black"/>
<Setter TargetName="ContentSite" Property="Visibility" Value="Hidden"/>
</Trigger>
<Trigger Property="HasItems" Value="false">
<Setter TargetName="DropDownBorder" Property="MinHeight" Value="95"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="IsTabStop" Value="false"/>
<Setter TargetName="PART_EditableTextBox" Property="Visibility" Value="Visible"/>
<Setter TargetName="PART_EditableTextBox" Property="Foreground" Value="Black"/>
<Setter TargetName="PART_EditableTextBox" Property="IsEnabled" Value="False"/>
<Setter TargetName="PART_EditableTextBox" Property="Background" Value="White"/>
<Setter TargetName="ContentSite" Property="Visibility" Value="Hidden"/>
</Trigger>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</Trigger>
<Trigger SourceName="Popup" Property="Popup.AllowsTransparency" Value="true">
<Setter TargetName="DropDownBorder" Property="Margin" Value="0,2,0,0"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
</Style.Triggers>
</Style>
<!--combobox item style-->
<Style x:Key="Column_CmbItem" TargetType="ComboBoxItem">
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="OverridesDefaultStyle" Value="True"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ComboBoxItem">
<Grid x:Name="Border" Grid.ColumnSpan="2" Margin="1,0,1,1" Background="White">
<ContentPresenter></ContentPresenter>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="ComboBoxItem.IsSelected" Value="True">
<Setter TargetName="Border" Property="Background" Value="Gray"></Setter>
</Trigger>
<Trigger Property="ComboBoxItem.IsMouseOver" Value="True">
<Setter TargetName="Border" Property="Background" Value="LightBlue"></Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
You can write this combobox datatemplate in resources also..so you can use combobox datatempalate multiple time.I haven't written in resource.
你也可以在资源中写这个组合框数据模板..所以你可以多次使用组合框数据模板。我没有写在资源中。
<Grid>
<ComboBox x:Name="Combobox" Margin="50,0,0,0" IsEditable="True" HorizontalAlignment="Left" IsTextSearchEnabled="True" TextSearch.TextPath="symbol" ItemsSource="{Binding cmb }" Style="{StaticResource 2_Column_Cmb}" Height="30" ItemContainerStyle="{StaticResource Column_CmbItem}" Width="200" Tag="Item1">
<ComboBox.ItemTemplate>
<DataTemplate>
<Grid Background="Transparent" SnapsToDevicePixels="True">
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding name}" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="0" FontSize="15" TextTrimming="CharacterEllipsis" Foreground="Black" />
<TextBlock Text="{Binding symbol}" Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="20" Foreground="Black"/>
</Grid>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
<ComboBox x:Name="Combobox1" Margin="0,0,50,0" HorizontalAlignment="Right" IsEditable="True" IsTextSearchEnabled="True" TextSearch.TextPath="symbol" ItemsSource="{Binding cmb }" Style="{StaticResource 3_Column_Cmb}" Height="30" ItemContainerStyle="{StaticResource Column_CmbItem}" Width="200" Tag="Item1">
<ComboBox.ItemTemplate>
<DataTemplate>
<Grid Background="Transparent" SnapsToDevicePixels="True">
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding index}" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="0" FontSize="15" TextTrimming="CharacterEllipsis" Foreground="Black" />
<TextBlock Text="{Binding name}" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="1" FontSize="15" TextTrimming="CharacterEllipsis" Foreground="Black" />
<TextBlock Text="{Binding symbol}" Grid.Column="2" VerticalAlignment="Center" HorizontalAlignment="Center" FontSize="20" Foreground="Black"/>
</Grid>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
</Grid>
c# code
代码
InitializeComponent();
List<ComboboxData> cmb = new List<ComboboxData>();
cmb.Add(new ComboboxData("1.","Tidle", "~"));
cmb.Add(new ComboboxData("2.", "Exclamation", "!"));
cmb.Add(new ComboboxData("3.", "Ampersat", "@"));
cmb.Add(new ComboboxData("4.","Ampersand", "&"));
cmb.Add(new ComboboxData("5.","Dollar", "$"));
Combobox.ItemsSource = cmb;
Combobox1.ItemsSource = cmb;
public class ComboboxData
{
public string index { get; set; }
public string name { get; set; }
public string symbol { get; set; }
public ComboboxData(string index,string name,string symbol)
{
this.index = index;
this.name = name;
this.symbol = symbol;
}
}
similarly you can edit template for 4 column, 5 column also.
同样，您也可以编辑 4 列、5 列的模板。
output
输出
