The user identity cannot change during an active SignalR connection
This error may be seen if authentication is being used, and the client is logged out before the connection is stopped. The solution is to stop the SignalR connection before logging the client out.
I’ve used several version control systems for my source code and research projects. Recently, I’ve consolidated them to TFS and Git. I have started using Visual Studio Online for my research work, CodePlex for my Open Source Frameworks and Tools and GitHub for my blog code. Much of these decisions a……
go
--计算地球上两个坐标点(经度,纬度)之间距离sql函数
--作者:lordbaby
--整理:www.aspbc.com
CREATE FUNCTION [dbo].[fnGetDistance](@LatBegin REAL, @LngBegin REAL, @LatEnd REAL, @LngEnd REAL) RETURNS FLOAT
AS
BEGIN
--距离(千米)
DECLARE @Distance REAL
DECLARE @EARTH_RADIUS REAL
SET @EARTH_RADIUS = 6378.137
DECLA……