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annotate MetroWpf/MetroWpf.Xaml/Extensions/DependencyObject.cs @ 15:060f02cd4591

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author stevenh7776 stevenhollidge@hotmail.com
date Mon, 12 Mar 2012 23:05:21 +0800
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15
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1 using System.Windows;
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2 using System.Windows.Media;
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3
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4 namespace MetroWpf.Xaml.Extensions
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5 {
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6 public static class DependencyObjectExtensions
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7 {
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8 /// <summary>
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9 /// Finds a parent of a given control/item on the visual tree.
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10 /// </summary>
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11 /// <typeparam name="T">Type of Parent</typeparam>
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12 /// <param name="child">Child whose parent is queried</param>
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13 /// <returns>Returns the first parent item that matched the type (T), if no match found then it will return null</returns>
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14 public static T TryFindParent<T>(this DependencyObject child) where T : DependencyObject
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15 {
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16 DependencyObject parentObject = VisualTreeHelper.GetParent(child);
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17 if (parentObject == null) return null;
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18 T parent = parentObject as T;
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19 if (parent != null)
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20 return parent;
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21 else
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22 return TryFindParent<T>(parentObject);
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23 }
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24 }
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25 }