Recent questions tagged .NET

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.net - Unable to convert MySQL date/time value to System.DateTime

I get this error: Unable to convert MySQL date/time value to System.DateTime while I am trying to fetch the data ... above. How can I fix this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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274 views

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.net - Can Visual Studio 2012 be installed side-by-side w/ Visual Studio 2010?

Will Visual Studio 2012 interfere/break .NET 4 and/or Visual Studio 2010 if installed side-by-side on the same instance of Windows? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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397 views

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.net - How to pass a variable to the SelectCommand of a SqlDataSource?

I want to pass variable from the code behind to the SelectCommand of a SqlDataSource? I don't want ... /SelectParameters> </asp:SqlDataSource> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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383 views

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.net - Drawing on top of controls inside a panel (C# WinForms)

I know this question had been asked more than a few times, but so far I haven't been able to find a good ... . (used windows paint to paint it) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

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.net - When should I use SnapsToDevicePixels in WPF 4.0?

Can anyone suggest a guideline on when to use SnapsToDevicePixels in WPF 4.0? Should it only be used ... on certain controls or what? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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240 views

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.net - What's the difference between RouteLink and ActionLink in ASP.NET MVC?

I think that the title pretty much sums it up: What's the difference between RouteLink() and ActionLink() in ... .ActionLink() in your View? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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347 views

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.net - WinRT/UWP Frame and Page caching: How to create new page instance on Navigate() and keep the page instance on GoBack()

I'm trying to create an UWP (Universal Windows App) application with C#. My problem is the Frame ... doesn't work with SuspensionManager See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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748 views

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.net - Why doesn't await on Task.WhenAll throw an AggregateException?

In this code: private async void button1_Click(object sender, EventArgs e) { try { await Task.WhenAll( ... always create an AggregateException? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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324 views

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.net - Can you get a Func<T> (or similar) from a MethodInfo object?

I realize that, generally speaking, there are performance implications of using reflection. (I myself am not a fan of ... 's anything like it.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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333 views

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.net - mscorlib.dll & System.dll

Why did MS originally make the decision to maintain these two separate core libs? Maybe they had some scalability ... of the two has. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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732 views

1 answer

.net - How to get next (or previous) enum value in C#

I have an enum which is defined like this: public enum eRat { A = 0, B=3, C=5, D=8 }; So given value ... eRat.B+1 or Enum.Next(Erat.B)? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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