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System.Threading.Timer in C# it seems to be not working. It runs very fast every 3 second

I've a timer object. I want it to be run every minute. Specifically, it should run a OnCallBack method and gets inactive while a OnCallBack method is running. Once a OnCallBack method finishes, it (a OnCallBack ) restarts a timer. ...
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How to print a groupby object

... key_list_from_gb = [key1, key2, key3] for key, values in gb.items(): if key in key_list_from_gb: print(df.ix[values], "\n") share | improve this answer | follo...
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Difference between Convert.ToString() and .ToString()

What is the difference between Convert.ToString() and .ToString() ? 19 Answers 19 ...
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Android Use Done button on Keyboard to click button

...ean onEditorAction(TextView v, int actionId, KeyEvent event) { if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) { Log.i(TAG,"Enter pressed"); } return false; } ...
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What is the easiest way to remove the first character from a string?

...-1] end def first(how_many = 1) self[0...how_many] end def shift(how_many = 1) shifted = first(how_many) self.replace self[how_many..-1] shifted end alias_method :shift!, :shift end class Array def eat!(how_many = 1) self.replace self[how_many..-1] end end put...
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Set initial focus in an Android application

... Yeah, it has happened with two of my applications now. I guess I could requestFocus onto a element that doesn't change like a TextView or would this not be allowed? – stealthcopter Apr 30 '10 at 10:58 ...
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How can I display an image from a file in Jupyter Notebook?

... Note, until now posted solutions only work for png and jpg! If you want it even easier without importing further libraries or you want to display an animated or not animated GIF File in your Ipython Notebook. Transform the line where yo...
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User recognition without cookies or local storage

...ookies Session Cookies 3rd Party Cookies Flash Cookies (most people don't know how to delete these) Web Bugs (less reliable because bugs get fixed, but still useful) PDF Bug Flash Bug Java Bug Browsers Click Tracking (many users visit the same series of pages on each visit) Browsers Finger Pri...
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SQL- Ignore case while searching for a string

...ave to compare both UPPER and LOWER variants because some characters have different representations in upper case but the same representation in lower case. For other characters, the opposite may be true. Java mentions the Georgian alphabet specifically as reason for doing an additional toLowerCase(...
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How to check if the URL contains a given string?

...gex way: var matches = !!location.href.match(/franky/); //a boolean value now Or in a simple statement you could use: if (location.href.match(/franky/)) { I use this to test whether the website is running locally or on a server: location.href.match(/(192.168|localhost).*:1337/) This checks...