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Asp.net - Add blank item at top of dropdownlist
...or add it after databinding.
EDIT:
After googling this quickly as of ASP.Net 2.0 there's an "AppendDataBoundItems" true property that you can set to...append the databound items.
for details see
http://imar.spaanjaars.com/QuickDocId.aspx?quickdoc=281 or
http://msdn.microsoft.com/en-us/library/...
Unable to make the session state request to the session state server
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Start–> Administrative Tools –> Services
Right-click on the ASP.NET State Service and click “start”
Additionally you could set the service to automatic so that it will work after a reboot
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One class per file rule in .NET? [closed]
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Is there a rule like that in .NET? I also I would have just returned the statement result. :O
– Joan Venge
Mar 12 '10 at 19:18
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Asp.net MVC ModelState.Clear
Can anyone give me a succinct definition of the role of ModelState in Asp.net MVC (or a link to one). In particular I need to know in what situations it is necessary or desirable to call ModelState.Clear() .
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Determine version of Entity Framework I am using?
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There are two versions: 1 and 4. EFv4 is part of .net 4.0, and EFv1 is part of .net 3.5 SP1.
Yes, the config setting above points to EFv4 / .net 4.0.
EDIT
If you open the references folder and locate system.data.entity, click the item, then check the runtime version number...
Duplicate AssemblyVersion Attribute
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I think for .net assemblys the better way would be to use version injection method. But thats a seperate story. In your case the problem is there are different ways of providing assembly versions, through cmdline build parameters and thro...
Thread-safe List property
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If you are targetting .Net 4 there are a few options in System.Collections.Concurrent Namespace
You could use ConcurrentBag<T> in this case instead of List<T>
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ASP.NET MVC Razor render without encoding
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Since ASP.NET MVC 3, you can use:
@Html.Raw(myString)
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Why .NET String is immutable? [duplicate]
... doesn't really explain why String is immutable. Why aren't certain other .NET reference types immutable? Can you please go into more detail into why String itself is immutable?
– Howiecamp
Jul 29 '17 at 23:08
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What is causing “Unable to allocate memory for pool” in PHP?
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More info for this APC setting: php.net/apc.configuration#ini.apc.mmap-file-mask
– mikeytown2
Mar 5 '12 at 22:49
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