Automatically add decimal dot after 2nd digit in TextBox using JavaScript

Question

I am using aspnet textbox I want the textbox display currency format as user typein the tricky requirement is that automatically add a period  before the last two digits reason for that to prevent user enter a large amount accidentally so for exampleuser entered 1 gt 1 or 100user entered 12 gt 12 or 1200user entered 123 gt 1231234 gt 1234123400 gt 123400And also not allow enter any thing else rather than 0 gt 9 0123456789 the  sign dont need to be in the

Azim · Accepted Answer

Please refer this javascript codelthtml xmlns34httpwwww3org1999xhtml34gtlthead runat34server34gt    lttitlegtlttitlegt    ltscript type34textjavascript34gt        function AppendDottext             var text  textvalue            documentgetElementById34lttxtNumberClientID gt34value  3434                        switch textlength                 case 1                    documentgetElementById34lttxtNumberClientID gt34value  text  340034                    break                case 2                    documentgetElementById34lttxtNumberClientID gt34value  text  340034                    break                default                    var first  textsubstring0 textlength  2                    var second  textsubstringtextlength  2                    var temp  first  3434  second                    debugger

Automatically add decimal dot after 2nd digit in TextBox using JavaScript

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