add decimal at the number

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  • java
    New Member
    • Oct 2006
    • 10
    #1

    add decimal at the number

    hi,

    how to add .00 to a number after the onBlur event?

    For example,if i key in 123 at the textbox, when i press the tab, it will be appear as 123.00.


    thx.
    Tags: None
    • Thevercad
      New Member
      • Oct 2006
      • 26
      #2
      hi,

      i tried working on your code. i did it the following way.

      Code:
      <html>
    <head>
    </head>
    <body>
        <input type="text" id="Text1" onFocus="this.focus();" onBlur="this.value = this.value + '.00' " value="">
    </body>
</html>
      hope this helps.

        Comment

        • java
          New Member
          • Oct 2006
          • 10
          #3
          thanks a lot.

            Comment

            • java
              New Member
              • Oct 2006
              • 10
              #4
              if the situation is:
              User key in the number with decimal? how to verify that?

              what i mean is if user key in 10.00, it will b remain as 10.00.
              If user key in 10, it will appear as 10.00.


              thx..

                Comment

                • r035198x
                  MVP
                  • Sep 2006
                  • 13225
                  #5
                  Originally posted by java
                  if the situation is:
                  User key in the number with decimal? how to verify that?

                  what i mean is if user key in 10.00, it will b remain as 10.00.
                  If user key in 10, it will appear as 10.00.


                  thx..
                  You could search for the presence of a dot (using a regex) first before you do the change.

                    Comment

                    • AricC
                      Recognized Expert Top Contributor
                      • Oct 2006
                      • 1885
                      #6
                      What is the number range that will be entered? You could combine a switch/if with one of these functions.

                      Number.toFixed( #)
                      or
                      Number.toPrecis ion(#)

                      HTH,
                      Aric

                        Comment

                        • java
                          New Member
                          • Oct 2006
                          • 10
                          #7
                          no range. any number can be used.

                          any suggestion on the way to solve it? Any code?


                          thx

                            Comment

                            • Thevercad
                              New Member
                              • Oct 2006
                              • 26
                              #8
                              hi,

                              use the following code. This might solve your problem:

                              Code:
                              <input type="text" onFocus="this.focus();" onBlur="checkDecimal(this,this.value)" value="" />
                              the javascript function checkDecimal is below:

                              Code:
                              function checkDecimal(obj, objStr){
    var objNumber;
    if(isNaN(objStr) && objStr!=''){
        alert('Value entered is not numeric');
        objNumber = '0.00';
    }
    else if(objStr==''){
        objNumber = '0.00';
    }
    else if(objStr.indexOf('.')!=-1){
        if(((objStr.length) - (objStr.indexOf('.')))>3){
            objStr = objStr.substr(0,((objStr.indexOf('.'))+3));
        }
        if(objStr.indexOf('.')==0){
            objStr = '0' + objStr;
        }
        var sLen = objStr.length;
        var TChar = objStr.substr(sLen-3,3);
        if(TChar.indexOf('.')==0){
            objNumber = objStr;
        }
        else if(TChar.indexOf('.')==1){
            objNumber = objStr + '0';
        }
        else if(TChar.indexOf('.')==2){
            objNumber = objStr + '00';
        }
    }
    else{
        objNumber = objStr + '.00';
    }
    obj.value = objNumber;
}
                              This function will check, if the number entered is numeric, if the decimal numbers take more than two digits, if the first character is a dot, if it has just a dot at the end, or just one decimal number or both the decimal numbers or no decimal number at all.

                              i hope there are no errors in it.. please check the opening and closing braces, as well as the variable names.

                                Comment

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