【发布时间】:2016-02-25 18:42:46
【问题描述】:
文件名:location.xml
<?xml version="1.0" encoding="utf-8" ?>
<locations>
<location id="1" position="Holiday" />
<location id="2" position="Time Off" />
<location id="3" position="Training" />
</locations>
我正在尝试使用位置的“文本”填充组合框。目前不需要 id。
我的 C# 代码
var obj = XDocument.Load("location.xml");
comboBox1.DisplayMember = "LocationPosition";
comboBox1.ValueMember = "LocationID";
comboBox1.DataSource = obj.Descendants("location").Select(x => new
{
LocationPosition = x.Attribute("name").Value,
LocationID = x.Attribute("id").Value
}).ToList(); // Crashing here
错误信息显示
System.NullReferenceException was unhandled
HResult=-2147467261
Message=Object reference not set to an instance of an object.
Source=CalendarSharing
StackTrace:
【问题讨论】:
-
这一行中的
"name"是什么?LocationPosition = x.Attribute("name").Value -
我不知道。调试器不会显示值
标签: c# xml winforms exception-handling