数据绑定子属性对象 null

发布于 2024-11-05 08:19:54 字数 357 浏览 1 评论 0原文

我有 DataGrid，在代码中显式创建了列。我在这样的代码中绑定 WPF 元素：

var path = "ReferenceProperty." + otherObj.StringProperty;
var dataBinding = new Binding(path) { TargetNullValue = "not set" };

当我在 DataGrid 中创建新行时出现问题，ReferenceProperty 为 null 并引发异常。如果我尝试在默认构造函数中创建 ReferencePropertys 对象，NHibernate 会认为瞬态对象在刷新之前没有保存。我该如何解决它？

提前致谢。

原文

I have DataGrid with explicitly created columns in code. I am binding WPF element in code like this:

var path = "ReferenceProperty." + otherObj.StringProperty;
var dataBinding = new Binding(path) { TargetNullValue = "not set" };

The problem occurs when i create new row in the DataGrid, the ReferenceProperty is null and exception is thrown.
If i try to create ReferencePropertys object in the default ctor NHibernate argues that transient object wasn't saved before flush.
How can i solve it?

Thanks in advance.

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