我的网络应用程序（.net v4）使用nHibernate将值保存回（sql08 R2）数据库。 UPDATE操作正在提交表单并将内容保存回db。 Stuff正常工作，直到其中一个包含字段的长度超过几百个字符。
VS正在抛弃ADO异常：
NHibernate.Exceptions.GenericADOException 用户代码未处理 消息=无法更新： [myProject.Business.Entity.Order＃26718] [SQL： UPDATE命令SET orderDate = ?, shipmentTotal =？，total = ?, firstName = ?, lastName = ?,, customerInstitution = ?, phone = ?,, email =？，address =？，city = ?,, state =？，zip = ?, shippingFirstName =？，shippingLastName = ?, shippingAddress =？，shippingCity = ?, shippingState = ?, shippingZip = ?,, shippingPhone =？，paymentType = ?,, generalComments = ?, auditInfo = ?,, storeComments = ?, storeCommentsPriv = ？，taxExempt = ?, initiatedBy = ?, paidByCCNumber = ?, idUser = ?,, idAffiliate =？在哪里idOrder =？]
来源= myProject.DataAccess
SqlString = UPDATE命令SET orderDate = ?, shipmentTotal = ?, total = ?, firstName = ?, lastName = ?,, customerInstitution = ?, phone = ?,, email =？，address =？，city = ?,, state =？，zip = ?, shippingFirstName =？，shippingLastName = ?, shippingAddress =？，shippingCity = ?, shippingState = ?, shippingZip = ?,, shippingPhone =？，paymentType = ?,, generalComments = ?, auditInfo = ?,, storeComments = ?, storeCommentsPriv = ？，taxExempt = ?, initiatedBy = ?, paidByCCNumber = ?, idUser = ?,, idAffiliate =？ WHERE idOrder =？
网页出现运行时错误：
String or binary data would be truncated.
显然，这不是最短的字段列表，但肯定不会推动容量限制。触发错误的字符串将转到最初设置为varchar（MAX）的varchar字段 - 我已将其拨回varchar（3000） - 但正如我所说 - 错误在长度超过300个字符之前被抛出
我没有在nHibernate方面的任何地方看到字段长度定义（在VS类中）但是不是一个nHibernate编码器我有点盲目地戳东西。消息'...将被截断。'确实听起来像数据库抱怨，但VS首先听到了ADO异常，所以我不知道接下来会在哪里进行故障排除。
THX