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POHow to format integer as ASCII/Unicode character (WITHOUT just casting to char)
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  1. POHow to format integer as ASCII/Unicode character (WITHOUT just casting to char)
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    copied!<p>Is there a way to format an integer as the equivalent ASCII/Unicode character in C#? For example, if I have the following code:</p> <pre><code>int n = 65; string format = ""; // what? string s = string.Format(format, n); </code></pre> <p>what do I need to put in the string <code>format</code> to result a single character, 'A', being written to <code>s</code> - basically I'm looking for the equivalent of doing the following in C:</p> <pre><code>int n = 65; char s[2]; char format = "%c"; sprintf(s, format, n); /* s &lt;- 'A' */ </code></pre> <p><strong>EDIT</strong> </p> <p>I should probably explain a bit more about what I'm trying to do, as the obvious answer "cast it to char", doesn't help.</p> <p>I have a situation where I have an integer value that represents a bank account check digit, but which needs to be output as a character for some countries and a (0-padded) digit string for others. I'm wondering if there's a way of switching between the two just by changing the format string, so I can hold a dictionary of the appropriate format strings, keyed on the country code.</p> <p><strong>EDIT 2</strong></p> <p>(For Oded) something like this ...</p> <pre><code>IDictionary&lt;string, string&gt; ccFormat = new Dictionary&lt;string, string&gt;() { { "GB", "{0:D}" }, // 0-9 { "PT", "{0:D2}" }, // 00-99 { "US", "{0:D3}" }, // 000-999 { "IT", ???? } // A-Z -- What should ???? be? }; string FormatCheckDigits(int digits, string country) { return string.Format(ccFormat[country], digits); } </code></pre> <p>Currently I've got <code>????</code> as <code>null</code> and some special case code in the method:</p> <pre><code>string FormatCheckDigits(int digits, string country) { string format = ccFormat[country]; if (string.IsNullOrEmpty(format)) { // special case: format as A-Z return ((char) digits).ToString(); } else { // Use retrieved format string return string.Format(format, digits); } } </code></pre>
 

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