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Show/hide expression with DateTime

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  • Show/hide expression with DateTime

    I've got a grid with among other things DateTime and a "Today" button. The "Today" button is to be shown ONLY if DateTime is TODAY. I'm trying to use "Show/hide expression" under "Client Side Properties", but without success. - Does anyone know how to do this?

  • #2
    Re: Show/hide expression with DateTime

    Hi Rune,

    When is it Not Today?
    Keith Hubert
    Alpha Guild Member
    KHDB Management Systems
    Skype = keith.hubert

    For your day-to-day Needs, you Need an Alpha Database!


    • #3
      Re: Show/hide expression with DateTime

      You got me there, Keith!
      But the DateTime field can have a value from ex yesterday, and if so I don't want to show the "Today" button. It seems possible to get the date part from DateTime with substr(), but I don't know what to compare it with (today's date).


      • #4
        Re: Show/hide expression with DateTime

        Hhmm.. it's always today? Curious. But try this:

        Create a JS function in the JS declarations:

        function currentDate() {
        var now = new Date();
        var y = now.getFullYear();
        var m = now.getMonth();
        var d = now.getDate();
        var alphadate = m+1 + '/' + d +'/' + y;
        return alphadate;
        then in your show hide you can try:

        DateTimefield = currentDate()

        That should do it!
        AlphaBase Solutions, LLC

        [email protected]


        • #5
          Re: Show/hide expression with DateTime

          Peter, your function works beautifully! Thanks!

          But I can't compare DateTimeField with currentDate(). DateTimeField consists of date AND time. It doesn't seem to be possible to format DateTimeField with time() or substr(). - Don't get this.


          • #6
            Re: Show/hide expression with DateTime


            Create a similar function that extracts the dt field value and parse accordingly. Then compare the 2 functions.
            AlphaBase Solutions, LLC

            [email protected]


            • #7
              Re: Show/hide expression with DateTime

              Yeah, you were right! - This is the function I finally came up with:

              function savedDate(dateTime) {
              var dateSaved = ""+dateTime; // make a string out of the date
              var onlyDate = dateSaved.split(" "); // there's a space between the date and the time part
              return onlyDate[0]; // returns only the date part

              And then I just check: currentDate()=savedDate(DateTime)

              Thank you for your help! (Hope this serves someone else also.)
              Last edited by Runback; 03-16-2012, 03:36 AM.