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How to Validate a DateTime in C#?

...x.Text, out value)) { startDateTextox.Text = DateTime.Today.ToShortDateString(); } Reasons for preferring this approach: Clearer code (it says what it wants to do) Better performance than catching and swallowing exceptions This doesn't catch exceptions inappropriately - e.g. OutOfMemoryExcep...
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Round a double to 2 decimal places [duplicate]

... want to use BigDecimal. And while at it, use the constructor that takes a String, never the one taking double. For instance, try executing this: System.out.println(new BigDecimal(1.03).subtract(new BigDecimal(0.41))); System.out.println(new BigDecimal("1.03").subtract(new BigDecimal("0.41"))); S...
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Underlining text in UIButton

...lso override the setTitle method like so : objective-c - (void)setTitle:(NSString *)title forState:(UIControlState)state { [super setTitle:title forState:state]; [self setNeedsDisplay]; } – Kirualex Oct 14 '13 at 15:41 ...
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download file using an ajax request

...n as your site. You could always make the AJAX request/window.location a fallback by using some JavaScript to test if download is supported and if not, switching it to call window.location. Original answer You can't have an AJAX request open the download prompt since you physically have to naviga...
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Creating a zero-filled pandas data frame

What is the best way to create a zero-filled pandas data frame of a given size? 6 Answers ...
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What is the equivalent of “!=” in Excel VBA?

... Just a note. If you want to compare a string with "" ,in your case, use If LEN(str) > 0 Then or even just If LEN(str) Then instead. share | improve ...
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How to disable an Android button?

...ontent" android:layout_width="wrap_content" android:text="@string/button_text" android:clickable = "false" /> share | improve this answer | follow...
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ASP.NET Identity reset password

... as a sample code steps. ApplicationDbContext =new ApplicationDbContext() String userId = "<YourLogicAssignsRequestedUserId>"; String newPassword = "<PasswordAsTypedByUser>"; ApplicationUser cUser = UserManager.FindById(userId); String hashedNewPassword = UserManager.PasswordHasher.Hash...
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How do I use DateTime.TryParse with a Nullable?

I want to use the DateTime.TryParse method to get the datetime value of a string into a Nullable. But when I try this: 9 A...
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What's up with Java's “%n” in printf?

... %n is portable across platforms \n is not. See the formatting string syntax in the reference documentation: 'n' line separator The result is the platform-specific line separator share | ...