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C# equivalent to Java's charAt()?

I know we can use the charAt() method in Java get an individual character in a string by specifying its position. Is there an equivalent method in C#? ...
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How can I check if character in a string is a letter? (Python)

I know about islower and isupper , but can you check whether or not that character is a letter? For Example: 6 Answers ...
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What is the difference between quiet NaN and signaling NaN?

I have read about floating-point and I understand that NaN could result from operations. But I can't understand what these are concepts exactly. What is the difference between them? ...
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ActiveRecord: size vs count

In Rails, you can find the number of records using both Model.size and Model.count . If you're dealing with more complex queries is there any advantage to using one method over the other? How are they different? ...
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What is an .axd file?

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Google Maps API v3: How do I dynamically change the marker icon?

Using Google Maps API v3, how do I programmatically change the marker icon? 5 Answers ...
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How can I calculate the time between 2 Dates in typescript

This works in Javascript 5 Answers 5 ...
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Sequence contains more than one element

I'm having some issues with grabbing a list of type "RhsTruck" through Linq and getting them to display. 5 Answers ...
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space between divs - display table-cell

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UILabel - Wordwrap text

...to add line breaks to make it wrap properly? I just want it to wrap if it can't fit it in horizontally. 4 Answers ...