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Asked: 2026-05-10T21:03:36+00:00

Let’s say I have an integer that I need to convert to a string

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Let’s say I have an integer that I need to convert to a string (I might be displaying the value to the user by means of a TextBox, for example.

Should I prefer .ToString() or Convert.ToString(). They both do the same thing (don’t they?).

int someValue = 4;  // You can do this txtSomeValue.Text = someValue.ToString();  // Or this... txtSomeValue.Text = Convert.ToString(someValue);

Assuming that there is no runtime difference between the two, then my reasons come down to aesthetics and consistency. Recently I have been favouring Convert.ToString() as to me it says ‘hey, I want the value of this thing as a string’. However I know that this is not strictly true…

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1 Answer

  1. One test is 

    //This will set the variable test to null: string test = Convert.ToString(ConfigurationSettings.AppSettings['Missing.Value']);  //This will throw an exception: string test = ConfigurationSettings.AppSettings['Missing.Value'].ToString();

    Got the above ready example from http://weblogs.asp.net/jgalloway/archive/2003/11/06/36308.aspx

    You can find some benchmarks between the two at http://blogs.msdn.com/brada/archive/2005/03/10/392332.aspx

    So, it depends what you prefer and what your style is.

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