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89 changes: 89 additions & 0 deletions
89
...tSamples/GridsSamples/QuickStart/TreeListBoxFilteringWithCaptures/FilteringTreeListBox.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| using ActiproSoftware.ProductSamples.GridsSamples.Common; | ||
| using ActiproSoftware.Windows.Controls.Grids; | ||
| using ActiproSoftware.Windows.Media; | ||
| using System.Windows; | ||
|
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| namespace ActiproSoftware.ProductSamples.GridsSamples.QuickStart.TreeListBoxFilteringWithCaptures { | ||
|
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| /// <summary> | ||
| /// Represents an advanced single-column tree view control which can support highlighting of captures | ||
| /// for string-based filters. | ||
| /// </summary> | ||
| public class FilteringTreeListBox : TreeListBox { | ||
|
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| ///////////////////////////////////////////////////////////////////////////////////////////////////// | ||
| // NON-PUBLIC PROCEDURES | ||
| ///////////////////////////////////////////////////////////////////////////////////////////////////// | ||
|
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| /// <summary> | ||
| /// Removes captures from a <see cref="TreeListBoxItem"/>. | ||
| /// </summary> | ||
| /// <param name="treeListBoxItem">The item whose captures will be removed.</param> | ||
| private static void RemoveCaptures(TreeListBoxItem treeListBoxItem) { | ||
| if (treeListBoxItem != null) | ||
| treeListBoxItem.Tag = null; | ||
| } | ||
|
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| /// <summary> | ||
| /// Updates captures in all <see cref="TreeListBoxItem"/> instances. | ||
| /// </summary> | ||
| private void UpdateAllCaptures() { | ||
| var allTreeListBoxItems = VisualTreeHelperExtended.GetAllDescendants<TreeListBoxItem>(this); | ||
| foreach (var treeListBoxItem in allTreeListBoxItems) | ||
| this.UpdateCaptures(treeListBoxItem); | ||
| } | ||
|
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| /// <summary> | ||
| /// Updates captures for a <see cref="TreeListBoxItem"/>. | ||
| /// </summary> | ||
| /// <param name="treeListBoxItem">The item whose captures will be updated.</param> | ||
| private void UpdateCaptures(TreeListBoxItem treeListBoxItem) { | ||
| if (this.IsFilterActive | ||
| && (this.DataFilter is TreeNodeModelStringFilter filter) | ||
| && (treeListBoxItem?.DataContext is TreeNodeModel treeNodeModel)) { | ||
|
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| // Get the captures associated with the item's name (since the name is used to display the node in the tree) | ||
| var captures = filter.GetCaptures(treeNodeModel.Name, filter.Value); | ||
|
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| // Store the captures | ||
| treeListBoxItem.Tag = captures; | ||
| } | ||
| else { | ||
| // Remove captures when filtering is not active | ||
| RemoveCaptures(treeListBoxItem); | ||
| } | ||
| } | ||
|
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| ///////////////////////////////////////////////////////////////////////////////////////////////////// | ||
| // PUBLIC PROCEDURES | ||
| ///////////////////////////////////////////////////////////////////////////////////////////////////// | ||
|
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| /// <inheritdoc/> | ||
| protected override void ClearContainerForItemOverride(DependencyObject element, object item) { | ||
| base.ClearContainerForItemOverride(element, item); | ||
|
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| // Remove captures when the container is cleared | ||
| if (element is TreeListBoxItem treeListBoxItem) | ||
| RemoveCaptures(treeListBoxItem); | ||
| } | ||
|
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| /// <inheritdoc/> | ||
| protected override void PrepareContainerForItemOverride(DependencyObject element, object item) { | ||
| base.PrepareContainerForItemOverride(element, item); | ||
|
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| // Update captures for the new container | ||
| if (element is TreeListBoxItem treeListBoxItem) | ||
| this.UpdateCaptures(treeListBoxItem); | ||
| } | ||
|
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| /// <inheritdoc/> | ||
| protected override void OnFilterApplied(RoutedEventArgs e) { | ||
| base.OnFilterApplied(e); | ||
|
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| // Update all captures when a filter is applied | ||
| this.UpdateAllCaptures(); | ||
| } | ||
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| } | ||
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| } |
185 changes: 185 additions & 0 deletions
185
.../ProductSamples/GridsSamples/QuickStart/TreeListBoxFilteringWithCaptures/MainControl.xaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,185 @@ | ||
| <sampleBrowser:ProductItemControl | ||
| x:Class="ActiproSoftware.ProductSamples.GridsSamples.QuickStart.TreeListBoxFilteringWithCaptures.MainControl" | ||
| xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" | ||
| xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" | ||
| xmlns:common="clr-namespace:ActiproSoftware.ProductSamples.GridsSamples.Common" | ||
| xmlns:shared="http://schemas.actiprosoftware.com/winfx/xaml/shared" | ||
| xmlns:grids="http://schemas.actiprosoftware.com/winfx/xaml/grids" | ||
| xmlns:sampleBrowser="clr-namespace:ActiproSoftware.SampleBrowser" | ||
| xmlns:local="clr-namespace:ActiproSoftware.ProductSamples.GridsSamples.QuickStart.TreeListBoxFilteringWithCaptures" | ||
| > | ||
|
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| <sampleBrowser:ProductItemControl.Resources> | ||
|
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| <DataTemplate x:Key="ItemDataTemplate"> | ||
| <!-- The custom FilteringTreeListBox control stores current captures on the TreeListBoxItem.Tag property --> | ||
| <shared:AdvancedTextBlock Text="{Binding Name}" TextTrimming="CharacterEllipsis" VerticalAlignment="Center" | ||
| Captures="{Binding RelativeSource={RelativeSource AncestorType=grids:TreeListBoxItem}, Path=Tag}" | ||
| HighlightForeground="White" HighlightBackground="RoyalBlue" HighlightFontWeight="Normal" /> | ||
| </DataTemplate> | ||
|
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| </sampleBrowser:ProductItemControl.Resources> | ||
|
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| <sampleBrowser:ProductItemControl.SideBarContent> | ||
| <StackPanel> | ||
|
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| <Expander Style="{StaticResource SampleHeaderOptionsExpanderStyle}"> | ||
| <sampleBrowser:SampleOptionsPropertyGrid> | ||
| <grids:PropertyModel CanAutoConfigure="True" Value="{Binding Mode=TwoWay, ElementName=treeListBox, Path=IsFilterActive}" /> | ||
| <grids:PropertyModel CanAutoConfigure="True" Value="{Binding Mode=TwoWay, Source={x:Reference stringFilter}, Path=Value}" ValueTemplateKind="ImmediateString" /> | ||
| <grids:PropertyModel CanAutoConfigure="True" Value="{Binding Mode=TwoWay, Source={x:Reference stringFilter}, Path=Operation}" /> | ||
| <grids:PropertyModel CanAutoConfigure="True" Value="{Binding Mode=TwoWay, Source={x:Reference stringFilter}, Path=StringComparison}" /> | ||
| <grids:PropertyModel CanAutoConfigure="True" Value="{Binding Mode=TwoWay, Source={x:Reference stringFilter}, Path=IncludedFilterResult}" /> | ||
| <grids:PropertyModel CanAutoConfigure="True" Value="{Binding Mode=TwoWay, ElementName=treeListBox, Path=AutoExpandItemsOnFilter}" DisplayName="Auto-expand to filtered items" /> | ||
| <grids:PropertyModel CanAutoConfigure="True" Value="{Binding Mode=TwoWay, ElementName=treeListBox, Path=HasTreeLines}" /> | ||
| </sampleBrowser:SampleOptionsPropertyGrid> | ||
| </Expander> | ||
|
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| <Expander Style="{StaticResource SampleHeaderDescriptionExpanderStyle}"> | ||
| <TextBlock Style="{StaticResource SampleHeaderDescriptionTextBlockStyle}"> | ||
| Like the other filtering sample, this sample shows several of the filtering capabilities available to the control. | ||
| This sample takes filtering one step further by illustrating how an AdvancedTextBlock can be used to show which parts of the | ||
| filter are being matched. | ||
| When the IsFilterActive property is true, the adapter's Filter method will be called for each item to see if it is included in the filter. | ||
| While this Filter method can be overridden with custom logic, it's default logic is to use the control's DataFilter. | ||
| <LineBreak /><LineBreak /> | ||
| This sample uses a TreeNodeModelStringFilter class that implements IDataFilter and is assigned to the control's DataFilter property. | ||
| The TextBox updates the string filter's value used to compare to each item's Name. | ||
| Various operation and string comparison options are available as well. | ||
| <LineBreak /><LineBreak /> | ||
| There also is an option to auto-expand to filtered items. | ||
| This comes into play in scenarios where you originally had items collapsed and after activating a filter, some of the collapsed items' descendants are included. | ||
| In that scenario, using this option ensures all their ancestors are expanded. | ||
| When filtering is deactivated, the expansion states revert back to what they were prior to activating filtering. | ||
| </TextBlock> | ||
| </Expander> | ||
|
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| </StackPanel> | ||
| </sampleBrowser:ProductItemControl.SideBarContent> | ||
|
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| <Grid Style="{StaticResource SamplePanelWideStyle}"> | ||
|
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| <!-- This sample uses a custom FilteringTreeListBox (which derives from TreeListBox) to update capture information when filtering is active --> | ||
| <local:FilteringTreeListBox x:Name="treeListBox" MaxWidth="{StaticResource SampleThinMaxWidth}" | ||
| ItemTemplate="{StaticResource ItemDataTemplate}"> | ||
| <grids:TreeListBox.ItemAdapter> | ||
| <common:DefaultTreeListBoxItemAdapter /> | ||
| </grids:TreeListBox.ItemAdapter> | ||
| <grids:TreeListBox.DataFilter> | ||
| <common:TreeNodeModelStringFilter x:Name="stringFilter" Value="g" /> | ||
| </grids:TreeListBox.DataFilter> | ||
| <grids:TreeListBox.EmptyContentTemplate> | ||
| <DataTemplate> | ||
| <TextBlock Margin="20" Text="All items have been filtered out." FontStyle="Italic" TextAlignment="Center" TextWrapping="Wrap" VerticalAlignment="Center" Opacity="0.67" /> | ||
| </DataTemplate> | ||
| </grids:TreeListBox.EmptyContentTemplate> | ||
|
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| <common:TreeNodeModel Name="Continents"> | ||
| <common:TreeNodeModel Name="North America" IsExpanded="True"> | ||
| <common:TreeNodeModel Name="Antigua and Barbuda" /> | ||
| <common:TreeNodeModel Name="Bahamas" /> | ||
| <common:TreeNodeModel Name="Barbados" /> | ||
| <common:TreeNodeModel Name="Belize" /> | ||
| <common:TreeNodeModel Name="Canada"> | ||
| <common:TreeNodeModel Name="Alberta" /> | ||
| <common:TreeNodeModel Name="British Columbia" /> | ||
| <common:TreeNodeModel Name="Manitoba" /> | ||
| <common:TreeNodeModel Name="New Brunswick" /> | ||
| <common:TreeNodeModel Name="Newfoundland and Labrador" /> | ||
| <common:TreeNodeModel Name="Nova Scotia" /> | ||
| <common:TreeNodeModel Name="Ontario" /> | ||
| <common:TreeNodeModel Name="Prince Edward Island" /> | ||
| <common:TreeNodeModel Name="Quebec" /> | ||
| <common:TreeNodeModel Name="Saskatchewan" /> | ||
| </common:TreeNodeModel> | ||
| <common:TreeNodeModel Name="Costa Rica" /> | ||
| <common:TreeNodeModel Name="Cuba" /> | ||
| <common:TreeNodeModel Name="Dominica" /> | ||
| <common:TreeNodeModel Name="Dominican Republic" /> | ||
| <common:TreeNodeModel Name="El Salvador" /> | ||
| <common:TreeNodeModel Name="Grenada" /> | ||
| <common:TreeNodeModel Name="Guatemala" /> | ||
| <common:TreeNodeModel Name="Haiti" /> | ||
| <common:TreeNodeModel Name="Honduras" /> | ||
| <common:TreeNodeModel Name="Jamaica" /> | ||
| <common:TreeNodeModel Name="Mexico" /> | ||
| <common:TreeNodeModel Name="Nicaragua" /> | ||
| <common:TreeNodeModel Name="Panama" /> | ||
| <common:TreeNodeModel Name="Saint Kitts and Nevis" /> | ||
| <common:TreeNodeModel Name="Saint Lucia" /> | ||
| <common:TreeNodeModel Name="Saint Vincent and the Grenadines" /> | ||
| <common:TreeNodeModel Name="Trinidad and Tobago" /> | ||
| <common:TreeNodeModel Name="United States of America"> | ||
| <common:TreeNodeModel Name="Alabama" /> | ||
| <common:TreeNodeModel Name="Alaska" /> | ||
| <common:TreeNodeModel Name="Arizona" /> | ||
| <common:TreeNodeModel Name="Arkansas" /> | ||
| <common:TreeNodeModel Name="California" /> | ||
| <common:TreeNodeModel Name="Colorado" /> | ||
| <common:TreeNodeModel Name="Connecticut" /> | ||
| <common:TreeNodeModel Name="Delaware" /> | ||
| <common:TreeNodeModel Name="Florida" /> | ||
| <common:TreeNodeModel Name="Georgia" /> | ||
| <common:TreeNodeModel Name="Hawaii" /> | ||
| <common:TreeNodeModel Name="Idaho" /> | ||
| <common:TreeNodeModel Name="Illinois" /> | ||
| <common:TreeNodeModel Name="Indiana" /> | ||
| <common:TreeNodeModel Name="Iowa" /> | ||
| <common:TreeNodeModel Name="Kansas" /> | ||
| <common:TreeNodeModel Name="Kentucky" /> | ||
| <common:TreeNodeModel Name="Louisiana" /> | ||
| <common:TreeNodeModel Name="Maine" /> | ||
| <common:TreeNodeModel Name="Maryland" /> | ||
| <common:TreeNodeModel Name="Massachusetts" /> | ||
| <common:TreeNodeModel Name="Michigan" /> | ||
| <common:TreeNodeModel Name="Minnesota" /> | ||
| <common:TreeNodeModel Name="Mississippi" /> | ||
| <common:TreeNodeModel Name="Missouri" /> | ||
| <common:TreeNodeModel Name="Montana" /> | ||
| <common:TreeNodeModel Name="Nebraska" /> | ||
| <common:TreeNodeModel Name="Nevada" /> | ||
| <common:TreeNodeModel Name="New Hampshire" /> | ||
| <common:TreeNodeModel Name="New Jersey" /> | ||
| <common:TreeNodeModel Name="New Mexico" /> | ||
| <common:TreeNodeModel Name="New York" /> | ||
| <common:TreeNodeModel Name="North Carolina" /> | ||
| <common:TreeNodeModel Name="North Dakota" /> | ||
| <common:TreeNodeModel Name="Ohio" /> | ||
| <common:TreeNodeModel Name="Oklahoma" /> | ||
| <common:TreeNodeModel Name="Oregon" /> | ||
| <common:TreeNodeModel Name="Pennsylvania" /> | ||
| <common:TreeNodeModel Name="Rhode Island" /> | ||
| <common:TreeNodeModel Name="South Carolina" /> | ||
| <common:TreeNodeModel Name="South Dakota" /> | ||
| <common:TreeNodeModel Name="Tennessee" /> | ||
| <common:TreeNodeModel Name="Texas" /> | ||
| <common:TreeNodeModel Name="Utah" /> | ||
| <common:TreeNodeModel Name="Vermont" /> | ||
| <common:TreeNodeModel Name="Virginia" /> | ||
| <common:TreeNodeModel Name="Washington" /> | ||
| <common:TreeNodeModel Name="West Virginia" /> | ||
| <common:TreeNodeModel Name="Wisconsin" /> | ||
| <common:TreeNodeModel Name="Wyoming" /> | ||
| </common:TreeNodeModel> | ||
| </common:TreeNodeModel> | ||
| <common:TreeNodeModel Name="South America" IsExpanded="True"> | ||
| <common:TreeNodeModel Name="Argentina" /> | ||
| <common:TreeNodeModel Name="Bolivia" /> | ||
| <common:TreeNodeModel Name="Brazil" /> | ||
| <common:TreeNodeModel Name="Chile" /> | ||
| <common:TreeNodeModel Name="Colombia" /> | ||
| <common:TreeNodeModel Name="Ecuador" /> | ||
| <common:TreeNodeModel Name="Guyana" /> | ||
| <common:TreeNodeModel Name="Paraguay" /> | ||
| <common:TreeNodeModel Name="Peru" /> | ||
| <common:TreeNodeModel Name="Suriname" /> | ||
| <common:TreeNodeModel Name="Uruguay" /> | ||
| <common:TreeNodeModel Name="Venezuela" /> | ||
| </common:TreeNodeModel> | ||
| </common:TreeNodeModel> | ||
|
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| </local:FilteringTreeListBox> | ||
|
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| </Grid> | ||
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| </sampleBrowser:ProductItemControl> |
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