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Validation failed for one or more entities while saving changes to SQL Server Database using Entity

I want to save my Edit to Database and I am using Entity FrameWork Code-First in ASP.NET MVC 3 / C# but I am getting errors. In my Event class, I have DateTime and TimeSpan datatypes but in my database, I've got Date and time respectively. Could this be the reason? How can I cast to the appropriate ...
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How do I discard unstaged changes in Git?

... way is: git stash save --keep-index --include-untracked You don't need to include --include-untracked if you don't want to be thorough about it. After that, you can drop that stash with a git stash drop command if you like. ...
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.trim() in JavaScript not working in IE

I tried to apply .trim() to a string in one of my JavaScript programs. It's working fine under Mozilla, but an error displays when I try it in IE8. Does anyone know what is going on here? Is there anyway I can make it work in IE? ...
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if checkbox is checked, do this

When I check a checkbox, I want it to turn <p> #0099ff . 11 Answers 11 ...
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Get list of data-* attributes using javascript / jQuery

...rough .data(): As of jQuery 1.4.3 HTML 5 data- attributes will be automatically pulled in to jQuery's data object. Note that strings are left intact while JavaScript values are converted to their associated value (this includes booleans, numbers, objects, arrays, and null). The...
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Difference between and text

There are many legends about them. I want to know the truth. What are the differences between the two following examples? 3...
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How to select the first element in the dropdown using jquery?

I want to know how to select the first option in all select tags on my page using jquery. 9 Answers ...
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Sort a list of tuples by 2nd item (integer value) [duplicate]

...,221)], key=lambda x: x[1]) key should be a function that identifies how to retrieve the comparable element from your data structure. In your case, it is the second element of the tuple, so we access [1]. For optimization, see jamylak's response using itemgetter(1), which is essentially a faster...
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Gray out image with CSS?

What's the best way (if any) to make an image appear "grayed out" with CSS (i.e., without loading a separate, grayed out version of the image)? ...
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Put icon inside input element in a form

... The site you linked uses a combination of CSS tricks to pull this off. First, it uses a background-image for the <input> element. Then, in order to push the cursor over, it uses padding-left. In other words, they have these two CSS rules: background: url(images/commen...