添加逻辑

VIZ.Framework.Core/Core/Converter/ObjectNotNull2BoolConverter.cs

+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace VIZ.Framework.Core
+{
+    /// <summary>
+    /// 对象不为空转化器
+    /// </summary>
+    public class ObjectNotNull2BoolConverter : IValueConverter
+    {
+        /// <summary>
+        /// 为空时的返回值
+        /// </summary>
+        public bool NullResult { get; set; } = false;
+
+        /// <summary>
+        /// 非空时的返回值
+        /// </summary>
+        public bool NotNullResult { get; set; } = true;
+
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return value == null ? this.NullResult : this.NotNullResult;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

VIZ.Framework.Core/VIZ.Framework.Core.csproj

@@ -103,6 +103,7 @@
     <Compile Include="Core\Converter\Bool2SolidColorBrushConverter.cs" />
     <Compile Include="Core\Converter\Bool2SolidColorBrushConverter.cs" />
     <Compile Include="Core\Converter\Color2SolidColorBrushConverter.cs" />
     <Compile Include="Core\Converter\Color2SolidColorBrushConverter.cs" />
     <Compile Include="Core\Converter\Enum2EnumDescriptionConverter.cs" />
     <Compile Include="Core\Converter\Enum2EnumDescriptionConverter.cs" />
+    <Compile Include="Core\Converter\ObjectNotNull2BoolConverter.cs" />
     <Compile Include="Core\Converter\String2ImageSourceConverter.cs" />
     <Compile Include="Core\Converter\String2ImageSourceConverter.cs" />
     <Compile Include="Core\Converter\StringAppendConverter.cs" />
     <Compile Include="Core\Converter\StringAppendConverter.cs" />
     <Compile Include="Core\Converter\NumberAddConverter.cs" />
     <Compile Include="Core\Converter\NumberAddConverter.cs" />