更新整理

ShrlAlgoToolkit.Mvvm/Assists/BindingHelper.cs

@@ -0,0 +1,44 @@
+using System.Windows;
+using System.Windows.Data;
+
+namespace ShrlAlgoToolkit.Mvvm.Assists
+{
+    public static class BindingHelper
+    {
+        public static Binding GetBinding(this FrameworkElement element, DependencyProperty dependencyProperty)
+        {
+            var expression = element.GetBindingExpression(dependencyProperty);
+            if (expression == null)
+            {
+                return null;
+            }
+            return expression.ParentBinding;
+           
+        }
+        /// <summary>
+        /// 获取绑定的源(模型视图)属性类型
+        /// </summary>
+        /// <param name="element"></param>
+        /// <param name="dependencyProperty"></param>
+        /// <returns></returns>
+        public static Type GetBindingPropertyType(this FrameworkElement element, DependencyProperty dependencyProperty)
+        {
+            var binding = element.GetBindingExpression(dependencyProperty);
+            var source = binding.ResolvedSource;
+            var prop = source.GetType().GetProperty(binding.ResolvedSourcePropertyName);
+            return prop.PropertyType;
+        }
+        /// <summary>
+        /// 设置绑定
+        /// </summary>
+        /// <param name="element">wpf框架元素</param>
+        /// <param name="dependencyProperty">依赖属性</param>
+        /// <param name="propertyName">视图模型属性</param>
+        /// <param name="sourceData">视图模型</param>
+        public static void SetBinding(this FrameworkElement element,DependencyProperty dependencyProperty,string propertyName,object sourceData)
+        {
+            var description = new Binding() { Path = new PropertyPath(propertyName), Source = sourceData };
+            element.SetBinding(dependencyProperty, description);
+        }
+    }
+}

ShrlAlgoToolkit.Mvvm/Assists/BindingProxy.cs

@@ -0,0 +1,25 @@
+using System.Windows;
+
+namespace ShrlAlgoToolkit.Mvvm.Assists
+{
+    /// <summary>
+    /// 绑定代理，用来传递绑定对象
+    /// </summary>
+    public class BindingProxy : Freezable
+    {
+        protected override Freezable CreateInstanceCore() => new BindingProxy();
+
+        public object Data
+        {
+            get { return GetValue(DataProperty); }
+            set { SetValue(DataProperty, value); }
+        }
+
+        // Using a DependencyProperty as the backing store for Data.  This enables animation, styling, binding, etc...
+        public static readonly DependencyProperty DataProperty = DependencyProperty.Register(
+            nameof(Data),
+            typeof(object),
+            typeof(BindingProxy)
+        );
+    }
+}