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我通过实体框架Code-First中的存储过程实现实体。存储过程接受一个int参数并输出记录选择和多个输出参数。无论出于何种原因,在执行SQL Management Studio中的Proc时导致预期行为时,我将返回空值作为输出参数;所有输出参数都有值。我的实体被物化,所以至少这是工作......SqlParameter在实体框架中返回null SqlQuery
EF代码
SqlParameter DocsWithHits = new SqlParameter()
{
ParameterName = "DocumentsWithHits",
Direction = System.Data.ParameterDirection.Output,
Value = null,
SqlDbType = System.Data.SqlDbType.Int
};
SqlParameter TotalGB = new SqlParameter()
{
ParameterName = "TotalGb",
Direction = System.Data.ParameterDirection.Output,
Value = null,
SqlDbType = System.Data.SqlDbType.Float
};
ObservableCollection<SearchResult> ResultCollection;
ResultCollection = new ObservableCollection<SearchResult>(db.Database.SqlQuery<SearchResult>(
"exec ListSearchResultsWithTotals @SearchAnalysisID, @DocumentsWithHits, @RelatedDocuments, @TotalDocuments, @TotalGb, @DocumentsWithHitsNotExported, @RelatedDocumentsNotExported, @TotalDocumentsNotExported, @TotalGbNotExported",
new SqlParameter
{
ParameterName = "SearchAnalysisID",
Value = this.SearchAnalysisId
},
DocsWithHits,
TotalGB));
SQL事件探查器
所产生从SqlQuery类方法是下面的SQL。我在Profiler中捕获它。当执行时,我得到记录和空输出参数。
declare @p4 int
set @p4=NULL
declare @p5 float
exec sp_executesql N'exec ListSearchResultsWithTotals @SearchAnalysisID, @DocumentsWithHits, @TotalGb',N'@SearchAnalysisID int,@DocumentsWithHits int output,@TotalGb float output',@SearchAnalysisID=170,@[email protected] output,@[email protected] output
select @p4, @p5, @p6, @p7, @p8, @p9, @p10, @p11
我使用的SqlParameter错了还是什么?