{"id":526,"date":"2003-10-21T22:42:48","date_gmt":"2003-10-22T02:42:48","guid":{"rendered":"http:\/\/wordpress.cephas.net\/?p=526"},"modified":"2003-10-21T22:42:48","modified_gmt":"2003-10-22T02:42:48","slug":"custom-string-formatting-in-c","status":"publish","type":"post","link":"https:\/\/cephas.net\/blog\/2003\/10\/21\/custom-string-formatting-in-c\/","title":{"rendered":"Custom string formatting in C#"},"content":{"rendered":"

Formatting strings for output into various mediums is always a fun… err.. required task. Every language does it differently. C# overloads the ToString() method to format a string using this syntax:
\n
\nConsole.WriteLine(MyDouble.ToString(\"C\"));
\n<\/code>
\nwhere “C” is a format specifier specifically for locale specific currency formatting. If the variable ‘MyDouble’ was 3456 in the example above, you’d see:
\n
\n$3546.00
\n<\/code>
\nprinted out. Of course, the fun doesn’t end there. There are a whole boatload of standard numeric formatting specifiers<\/a> you can use including decimal, number, percent and hexadecimal. But truly the most fun are the custom numeric format strings<\/a>. Example: Let’s say that your boss wants you to format all product pricing rounded to the nearest dollar without using a commas (ie: $1224 instead of $1,224.00). Normally, you’d write:
\n
\nPrice: <%= Product.Price.ToString(\"C\") %>
\n<\/code>
\nbut since you don’t want to have commas, you can use a custom format string:
\n
\nPrice: <%= Product.Price.ToString(\"$#####\") %>
\n<\/code>
\nwhich will produce this:<\/p>\n

Price: $1224<\/p>\n

How about phone numbers? Don’t they just suck to format? In ColdFusion, you’d have something like this:
\n
\n(#left(str, 3)#) #mid(str, 4, 3)# - #right(str, 4)#
\n<\/code>
\nwhere ‘str’ is a string containing the 10 digit phone number. In C#, you can write this:
\n
\nphone.ToString(\"(###) ### - ####\");
\n<\/code>
\nPretty concise isn’t it?<\/p>\n","protected":false},"excerpt":{"rendered":"

Formatting strings for output into various mediums is always a fun… err.. required task. Every language does it differently. C# overloads the ToString() method to format a string using this syntax: Console.WriteLine(MyDouble.ToString(“C”)); where “C” is a format specifier specifically for locale specific currency formatting. If the variable ‘MyDouble’ was 3456 in the example above, you’d … Continue reading Custom string formatting in C#<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"_links":{"self":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts\/526"}],"collection":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/comments?post=526"}],"version-history":[{"count":0,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts\/526\/revisions"}],"wp:attachment":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/media?parent=526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/categories?post=526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/tags?post=526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}