无法将属性设置为字节值，必须将该属性设置为int32类型的非null
[英]Property could not be set to a byte value you must set the property to a non null of type int32
问题描述
Database is in SQL Server 2005 and the datatype of my column in question is defined as tinyint (I cannot change this type) 
数据库在SQL Server 2005中，我所讨论的列的数据类型定义为tinyint （我无法更改此类型）
I have created a model having type as Int32 . 我创建了一个类型为Int32的模型。 In read statement system is throwing this error. 在read语句系统中抛出此错误。
Property could not be set to a byte value you must set the property to a non null of type int32
I was facing a similar problem for other types, then after checking CLR mapping I corrected them. 我遇到了其他类型的类似问题，然后在检查CLR映射后我更正了它们。 Now I am facing this problem only in case of tinyint and smallint . 现在我只在tinyint和smallint情况下面临这个问题。
2 个解决方案
解决方案1
16 2014-10-23 09:05:53
From the SQL Server docs you can see that TINYINT is a 1 byte value which maps into .Net as a byte type. 从SQL Server文档中可以看到TINYINT是一个1字节的值，它作为byte类型映射到.Net。 SMALLINT is 2 bytes which become Int16 in .Net. SMALLINT是2个字节，在.Net中成为Int16 。
So you need to change your model to use the correct types. 因此，您需要更改模型以使用正确的类型。
解决方案2
1 2015-07-31 05:33:16
Simply change property data type from complex entity. 只需从复杂实体更改属性数据类型即可。 In your case change property from int32 to byte . 在你的情况下，将属性从int32更改为byte。
At least it worked for me. 至少它对我有用。
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