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36 lines
1.5 KiB
36 lines
1.5 KiB
// (c) Copyright Microsoft Corporation.
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// This source is subject to the Microsoft Public License (Ms-PL).
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// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
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// All other rights reserved.
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using System.Collections.ObjectModel;
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using System.Windows.Markup;
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namespace System.Windows.Controls.DataVisualization
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{
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/// <summary>
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/// Provides a way to choose a TreeMapItemDefinition based on the data item and
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/// the level of the item in the tree.
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/// </summary>
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/// <QualityBand>Preview</QualityBand>
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public abstract class TreeMapItemDefinitionSelector
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{
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/// <summary>
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/// Initializes a new instance of the TreeMapItemDefinitionSelector class.
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/// </summary>
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protected TreeMapItemDefinitionSelector()
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{
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}
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/// <summary>
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/// Returns an instance of a TreeMapItemDefinition class used to specify properties for the
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/// current item.
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/// </summary>
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/// <param name="treeMap">Reference to the TreeMap class.</param>
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/// <param name="item">One of the nodes in the ItemsSource hierarchy.</param>
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/// <param name="level">The level of the node in the hierarchy.</param>
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/// <returns>The TreeMapItemDefinition to be used for this node. If this method returns null
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/// the TreeMap will use the value of its ItemDefinition property.</returns>
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public abstract TreeMapItemDefinition SelectItemDefinition(TreeMap treeMap, object item, int level);
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}
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}
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