LINQ to SQL 异常：SQL Server does not handle comparison of NText, Text, Xml, or Image data types
2010-11-30 22:59
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如果你使用LINQ to SQL过程中遇到异常：SQL Server does not handle comparison of NText, Text, Xml, or Image data types，可能你的数据库表字段中使用了NText,Text,Xml或者Image类型，你需要为dbml自动生成类的相应属性的Attribute添加上UpdateCheck=Never。
需要注意xml在dbml对于的类型为XElement，XElement是引用类型，如果需要对该字段进行更新，不能直接修改，需要重新创建一个XElement，否则所做的修改无法更新到数据库。
参考链接：Linq to SQL throws an exception when a column is of type ntext
需要注意xml在dbml对于的类型为XElement，XElement是引用类型，如果需要对该字段进行更新，不能直接修改，需要重新创建一个XElement，否则所做的修改无法更新到数据库。
参考链接：Linq to SQL throws an exception when a column is of type ntext
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