updateexception
How handle UpdateException?
I need handle exception duplicate. var resource = new Reso开发者_C百科urce() { url = tbUrl.Text };[详细]
2023-03-19 12:05 分类：问答Using DB-Default values for unmapped bit columns in entity framework 4 (database first)
I am trying to map two concrete entity types and an abstract base type to the same database table. The table contains a bit column that does not accept null. Column has a default value: ((0)).[详细]
2023-03-02 19:27 分类：问答.NET / Entity Framework - System.Data.UpdateException not precise enough?
i got thrown into a small .NET migration project that is using the Entity Framework and MS SQL Server 2005. when persisting data that is not working with db schema (e.g. a string is too long), I am ge[详细]
2023-01-27 08:24 分类：问答Entity Framework / EF4: Multiple inserts of related entities in a transactionscope
I have a similar problem. I want to make two inserts in the same transactionscope. The objects are related and have a FK relationship between them, but for several reasons I do not want to connect th[详细]
2023-01-12 15:57 分类：问答Entity Framework UpdateException relationships in Added and Deleted states
I have a table of Plants and Information. Plants have an ID, Name, ..., MainInformationID Information have an ID, Title, ..., PlantID[详细]
2022-12-24 10:58 分类：问答做试管婴儿前要准备什么？
李修颜 2022-07-01 11:32 开发者_运维技巧因为空气连续传染，再加入人们的平常生活中存在的种种不良习惯，造成很多朋友患上不孕不育症。关于这部分朋友因此言，或许只可以经过人为辅助生育技术来完成自己的生育[详细]
2022-12-16 11:13 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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