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Timeout expired. The timeout period elapsed prior to completion of the operation or the server is no

I have many users on my web site (20000-60000 per day), which is a download site for mobile files. I have remote access to my server (windows server 2008-R2). I've received "Server is unavailable" errors before, but am now seeing a connection timeout error. I'm not familiar with this - wh...
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Assign null to a SqlParameter

...ndexParameter.Value = (object)AgeItem.AgeIndex ?? DBNull.Value; parameters[0] = planIndexParameter; Here is a quote from the MSDN documentation for the ?: operator that explains the problem Either the type of first_expression and second_expression must be the same, or an implicit conversion m...
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How to wait for async method to complete?

...ID class device. My application uses the excellent Generic HID library v6.0 which can be found here . In a nutshell, when I need to write data to the device, this is the code that gets called: ...
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What is an undefined reference/unresolved external symbol error and how do I fix it?

... exist for other compilers/ platforms. Common error messages are error LNK2001, error LNK1120, error LNK2019 for Microsoft Visual Studio and undefined reference to symbolName for GCC. The code: struct X { virtual void foo(); }; struct Y : X { void foo() {} }; struct A { virtual ~A() = 0; };...
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Make absolute positioned div expand parent div height

... Mrchief 68.6k1919 gold badges130130 silver badges179179 bronze badges answered Aug 22 '12 at 10:20 feeelafeeela ...
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How can I run a program from a batch file without leaving the console open after the program starts?

... | edited Apr 17 '14 at 20:39 Daniel F. Thornton 3,59622 gold badges2424 silver badges4040 bronze badges ...
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When should I use Memcache instead of Memcached?

... Wilt 29.8k1010 gold badges113113 silver badges161161 bronze badges answered Sep 18 '09 at 5:35 Miha HribarMiha H...
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How to get an MD5 checksum in PowerShell

... 20 @davor that keeps the stream open for an indeterminate period of time, so you can't delete the file until Powershell is closed. $stream = [...
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Composer Warning: openssl extension is missing. How to enable in WAMP

... answered Jan 10 '13 at 19:32 Valery I.Valery I. 3,18611 gold badge1010 silver badges22 bronze badges ...
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how can I Update top 100 records in sql server

I want to update the top 100 records in SQL Server. I have a table T1 with fields F1 and F2 . T1 has 200 records. I want to update the F1 field in the top 100 records. How can I update based on TOP 100 in SQL Server? ...