今天為了一個專案發佈後無法執行花了兩個小時: 錯誤訊息如下
HTTP Error 500.31 - ANCM Failed to Find Native Dependencies in IIS  --  沒用
The specified version of Microsoft.NetCore.App or Microsoft.AspNetCore.App was not found  -- 沒用
An assembly specified in the application dependencies manifest (...) was not found  -- OK

最後是改了 .csproj 然後再發佈一次。

<PropertyGroup>               

    <PublishWithAspNetCoreTargetManifest>false</PublishWithAspNetCoreTargetManifest>

</PropertyGroup>

參考:
https://stackoverflow.com/questions/48896443/an-assembly-specified-in-the-application-dependencies-manifest-was-not-fou

 

從 List<T> 找出符合條件的資料

        List<DB.Member> listOfMember = new List<DB.Member>()

                { new DB.Member(15), new DB.Member(20), new DB.Member(25), new DB.Member(30) };



        // Exists: 單純看有無符合條件的資料

        bool IsMemberExists = listOfMember.Exists(x => x.Email == "darren@acaciaco.com");

        // FindIndex: 找出第一個符合條件的 index，找不到傳回 -1

        int index = listOfMember.FindIndex(x => x.Email == "darren@acaciaco.com");

        // Find: return 第一個符合條件的object, 找不到傳回 null

        DB.Member objMember = listOfMember.Find(x => x.Email.Contains("acaciaco.com"));

        // FindAll: return 所有符合條件的objects

        List<DB.Member> listOfMember2 = listOfMember.FindAll(x => x.Email.Contains("acaciaco.com"));

VB

Dim listOfMember As New List(Of DB.Member)() From { _

    New DB.Member(15), New DB.Member(20), New DB.Member(25), New DB.Member(30) }



' Exists: 單純看有無符合條件的資料

Dim IsMemberExists As Boolean = listOfMember.Exists(Function(x) x.Email = "darren@acaciaco.com")

' FindIndex: 找出第一個符合條件的 index，找不到傳回 -1

Dim index As Integer = listOfMember.FindIndex(Function(x) x.Email = "darren@acaciaco.com")

' Find: return 第一個符合條件的object, 找不到傳回 Nothing

Dim objMember As DB.Member = listOfMember.Find(Function(x) x.Email.Contains("acaciaco.com"))

' FindAll: return 所有符合條件的objects

Dim listOfMember2 As List(Of DB.Member) = listOfMember.FindAll(Function(x) x.Email.Contains("acaciaco.com"))

因為 SHOPUNT 的線上產品有兩千多筆，然後網站有非常頻繁的查詢
例如檢查產品是否停賣

原本的寫法是用以下方法尋找

DT.Select("Id=" & ProductId) 

後來改寫 DataTable 加上 PrimaryKey

'寫入Cache前先設定好

DT.PrimaryKey = New DataColumn() {obj.Columns("Id")} 

Dim row As DataRow = DT.Rows.Find(ProductId)

共1085筆 找出其中一筆 
Select方法  - 00:00:00.0000559
Rows.Find -   00:00:00.0000064

兩者速度差了約10倍
 

/* Find Collation of SQL Server Database */

SELECT DATABASEPROPERTYEX('DBName', 'Collation')

GO

/* Find Collation of SQL Server Database Table Column */

USE sample

GO

SELECT name, collation_name

FROM sys.columns

WHERE OBJECT_ID IN (

SELECT OBJECT_ID FROM sys.objects WHERE type = 'U' AND name = 'TableName')

AND name = 'ColumnName'

參考：http://blog.sqlauthority.com/2008/12/16/sql-server-find-collation-of-database-and-table-column-using-t-sql/