For with DateTime in Razor giving out of memory exception

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For with DateTime in Razor giving out of memory exception

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#1 by (3 votes)

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I'm having the error out of memory, being caused by this Razor code in my cshtml file, and I can not identify where the problem is.

@for(DateTime data = DateTime.Today.Date; data <= DateTime.Today.AddDays(7).Date; data.AddDays(1))
{
    @data
}

c# asp.net asp.net-mvc razor razor-pages

asked by anonymous 25.01.2018 / 23:41

1 answer

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score 3 · Accepted Answer

According to the documentation, the DateTime.AddDays

Returns a new DateTime that adds the specified number of days to the value of that instance.

Notice the emphasis. This method returns the result, and does not modify the instance. Therefore, its data variable is never being modified, generating an infinite loop and hence the OutOfMemory exception.

To solve, just overwrite data with the return value of the method

@for(DateTime data = DateTime.Today.Date; data <= DateTime.Today.AddDays(7).Date; data = data.AddDays(1))
{
    @data
}

See working in .NET fiddle