大约有 19,000 项符合查询结果（耗时：0.0262秒） [XML]
Window vs Page vs UserControl for WPF navigation?
...om what I can tell seems to work well with datasets, but what about static forms like for instance an entry form for an audit. Should I be using a page or usercontrol for static pages?
– Herrozerro
Jun 12 '13 at 20:05
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HTML input file selection event not firing upon selecting the same file
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<form enctype='multipart/form-data'>
<input onchange="alert(this.value); this.value=null; return false;" type='file'>
<br>
<input type='submit' value='Upload'>
</form>
this.value=null; ...
Python Create unix timestamp five minutes in the future
..." value 5 minutes in the future, but I have to supply it in UNIX Timestamp format. I have this so far, but it seems like a hack.
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Apply a function to every row of a matrix or a data frame
...hat has the same number of rows, you can predefine it and use the object[] form as illustrated (otherwise the returned value will be simplified to a vector):
bvnormdens <- function(x=c(0,0),mu=c(0,0), sigma=c(1,1), rho=0){
exp(-1/(2*(1-rho^2))*(x[1]^2/sigma[1]^2+
...
Break when a value changes using the Visual Studio debugger
...can connect a "callback" to the property and put a breakpoint inside. The form that I describe needs the memory address, if you have no way of know it, there is to search other methods.
– momboco
Mar 15 '11 at 15:12
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python list in sql query as parameter
...and b='snow' and stored it in a tuple with the name got=['a,b'] and did performed the same query. Doing this I got the erroy i.e. Type Error: not all arguments converted during string formatting. How am I supposed to solbe it
– TechJhola
Jan 9 '15 at 19:55
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What does Html.HiddenFor do?
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It creates a hidden input on the form for the field (from your model) that you pass it.
It is useful for fields in your Model/ViewModel that you need to persist on the page and have passed back when another call is made but shouldn't be seen by the user.
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How to convert a normal Git repository to a bare one?
...iginal question asked. It doesn't convert a repo, it clones one, losing information in the process (for example, remote branches).
– GreenAsJade
Nov 11 '13 at 3:21
add a comm...
OS X Framework Library not loaded: 'Image not found'
...framework is embedded into an app this path should be relative and of this form: @rpath/MyFramework.framework/MyFramework. If your framework's install name is an absolute path it may not be loaded at runtime and an error similar to the one above will be produced.
The solution is to modify the inst...
How do I make a textbox that only accepts numbers?
I have a windows forms app with a textbox control that I want to only accept integer values. In the past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more g...