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  1. #1
    Join Date
    May 2004
    Posts
    4

    Unhappy Unanswered: how to calculate....help

    i have problem now with my calculation..i have 4 textfield what i want is to add first,second and third textfield and total of this 3 appear in textfield number 4

    example

    textfield 1 + textfield 2 + textfield 3 = textfield 4


    plzzzzzzzzzzzzz i'm new in asp

  2. #2
    Join Date
    Jul 2003
    Location
    SoCal
    Posts
    721
    Sounds like you want JavaScript instead of ASP. Do you want textfield1, textfield2, and textfield3 to sum and update textfield4 dynamically, or do you expect this to sum on the refresh of the page?

    In JS it'd be:
    Code:
    <script language="javascript">
    <!--
    function updateTextField(){
      if(!isNaN(document.myform.textfield1.value) && !isNaN(document.myform.textfield2.value) && !isNaN(document.myform.textfield3.value)){
        document.myform.textfield4.value = Number(document.myform.textfield1.value) + Number(document.myform.textfield2.value) + Number(document.myform.textfield3.value);
      }
    }
    //-->
    </script>
    
    <form name="myform">
      <input name="textfield1" type="text" onChange="updateTextField();"><BR>
      <input name="textfield2" type="text" onChange="updateTextField();"><BR>
      <input name="textfield3" type="text" onChange="updateTextField();"><BR>
      <input name="textfield4" type="text" READONLY><BR>
    </form>
    In ASP (test.asp) it'd be:
    Code:
    <form action="test.asp?Update=1" method="post">
      <input name="textfield1" type="text"><BR>
      <input name="textfield2" type="text"><BR>
      <input name="textfield3" type="text"><BR>
    </form>
    <%
    If CInt(Trim(Request.QueryString("Update"))) = 1 Then
      Dim iSumFields
      iSumFields = CInt(Trim(Request.Form("textfield1")))
      iSumFields = iSumFields + CInt(Trim(Request.Form("textfield2")))
      iSumFields = iSumFields + CInt(Trim(Request.Form("textfield3")))
      
      Response.Write "Value: " & iSumFields & "<BR>"
    End If
    %>
    That which does not kill me postpones the inevitable.

  3. #3
    Join Date
    May 2004
    Posts
    4

    thnak you

    thank you...my problem is already solve .... i use the java script....because when i use asp have a problem....thank u very much

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