refactor(IgnoreWhenExport): update AutoGenerateColumnAttribute logic (#6023)

* refactor: 增加显示实现逻辑

* test: 增加单元测试

* test: 增加单元测试

* test: 更新单元测试

Author: ArgoZhang

src/BootstrapBlazor/Attributes/AutoGenerateColumnAttribute.cs

@@ -319,5 +319,11 @@ public class AutoGenerateColumnAttribute : AutoGenerateBaseAttribute, ITableColu
     /// <summary>
     /// <inheritdoc/>
     /// </summary>
-    public bool? IgnoreWhenExport { get; set; }
+    public bool IgnoreWhenExport { get; set; }
+
+    bool? ITableColumn.IgnoreWhenExport
+    {
+        get => IgnoreWhenExport;
+        set => IgnoreWhenExport = value ?? false;
+    }
 }

test/UnitTest/Attributes/AutoGenerateClassTest.cs

@@ -136,6 +136,9 @@ public void AutoGenerateColumn_Ok()
         attrInterface.Width = null;
         Assert.Equal(0, attr.Width);
 
+        attrInterface.IgnoreWhenExport = null;
+        Assert.False(attrInterface.IgnoreWhenExport);
+
         attrInterface.Width = -10;
         Assert.Equal(-10, attr.Width);