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Update Row if it Exists Else Insert Logic with Entity Framework
... modifications automatically
context.SaveChanges();
If you can use any knowledge about the object's key you can use something like this:
if (myEntity.Id != 0)
{
context.MyEntities.Attach(myEntity);
context.ObjectStateManager.ChangeObjectState(myEntity, EntityState.Modified);
}
else
{
...
java.lang.UnsupportedClassVersionError Unsupported major.minor version 51.0 [duplicate]
... select Compiler Compliance Level to 1.6 or 1.5, build and test your app.
Now, it should be fine.
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Bootstrap 3: Keep selected tab on page refresh
...with some question already been asked here but none of work for me. Don't know where I am wrong. Here is my code
18 Answers...
Print all but the first three columns
...he start of $0. 3rd would be better with printf "%s ",$i, since you don't know whether $i might contain %s or the like. But that would print an extra space at the end.
– dubiousjim
Apr 19 '12 at 3:16
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How do I change the cursor between Normal and Insert modes in Vim?
I would like to know how to change, if possible, the cursor in Vim (in color, shape, etc.) depending on what mode you are in.
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How do I find the stack trace in Visual Studio?
...shortcut (while debugging and stopped at a breakpoint) is:
Ctrl+Alt+C and now you can also use Ctrl+L
The screenshot is pretty old.
Here is one for Visual Studio 2019 (under the debug menu):
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Can a CSS class inherit one or more other classes?
I feel dumb for having been a web programmer for so long and not knowing the answer to this question, I actually hope it's possible and I just didn't know about rather than what I think is the answer (which is that it's not possible).
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Is there a CSS selector for elements containing certain text?
...ion of styling from content, as it means that the content doesn't need to know about its client is going to consider as important to base styling on. Right now our html content typically is tightly paired to the css by including classes that we know the styler cares about. They are already shiftin...
How do I use .toLocaleTimeString() without displaying seconds?
...verage, it's probably better to stick with the hour and minute options for now.
– buckthorn
Mar 25 at 15:26
For Safari...
How to read a local text file?
... ! And go the section readAsText and try the example. You will be able to know how the readAsText function of FileReader works.
<html>
<head>
<script>
var openFile = function(event) {
var input = event.target;
var reader = new FileReader();
...