使用EntityFramework仓库返回多个结果集 [英] Returning multiple resultsets with EntityFramework repository
问题描述
我正在使用一个代码,我需要多个表作为存储过程的结果。我正在使用Entity Framework存储库模式。它返回并绑定一个IEnumerable对象,但是我需要同时绑定多个IEnumerables。
可以帮助吗?
I am working on a code where I need Multiple tables as result of a stored procedure. I am using Entity Framework repository pattern. It returns and bind an IEnumerable object, but I need to bind it with multiple IEnumerables at the same time. Can anybody help?
这是我使用的代码:
db.Database.SqlQuery(procReturnsMultipleResuiltSets)
This is the code I am using : db.Database.SqlQuery("procReturnsMultipleResuiltSets")
推荐答案
在文章。
从相关文章中,最常见的方法是:
From related article the most common way is:
using (var db = new BloggingContext())
{
// If using Code First we need to make sure the model is built before we open the connection
// This isn't required for models created with the EF Designer
db.Database.Initialize(force: false);
// Create a SQL command to execute the sproc
var cmd = db.Database.Connection.CreateCommand();
cmd.CommandText = "[dbo].[GetAllBlogsAndPosts]";
try
{
db.Database.Connection.Open();
// Run the sproc
var reader = cmd.ExecuteReader();
// Read Blogs from the first result set
var blogs = ((IObjectContextAdapter)db)
.ObjectContext
.Translate<Blog>(reader, "Blogs", MergeOption.AppendOnly);
foreach (var item in blogs)
{
Console.WriteLine(item.Name);
}
// Move to second result set and read Posts
reader.NextResult();
var posts = ((IObjectContextAdapter)db)
.ObjectContext
.Translate<Post>(reader, "Posts", MergeOption.AppendOnly);
foreach (var item in posts)
{
Console.WriteLine(item.Title);
}
}
finally
{
db.Database.Connection.Close();
}
}
请注意重要说明:第一个结果集必须在移动到下一个结果集之前消耗。
please note the important remark: The first result set must be consumed before moving to the next result set.
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