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Multi-column dropdowns?

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    #1

    Multi-column dropdowns?

    I recall (maybe it was a dream?) that somewhere in the discussions about AJAX, there was a mention of multicolumn dorpdowns in Version 9. This would allow, for example, dropdowns to be sorted in some way other than alphabetical, which would be a big help. I believe it also mentioned that some of these columns could be hidden, which is even better.

    Was it all just a dream, or does this feature exist? I can't find anything about it.

    Pat
    Pat Bremkamp
    MindKicks Consulting
    Tags: None
    #2
    Re: Multi-column dropdowns?

    Pat,

    No, it is not a dream. I recall the same thing. I believe though that it is only possible at this point in time via AJAX. I have been looking at that and cannot figure it out. Ifanyone knows how to implement this I would be dancing in the street! :)

    Gary
    Gary S. Traub, Ph.D.

    Comment

      #3
      Re: Multi-column dropdowns?

      well this can be accomplished by using the value="<%a5 ? somevalue %>" withing the dropdown tags.

      'somevalue' can be a string that was previously obtained using xbasic and it contains values from multiple columns separated by spaces.

      Just make sure that after submitting the form you only take the first value within the string which is typically the key for the field.
      I hope it makes sense.

      Here is some code in a page to make it understand better:
      Code:
      <html>
<head>
<meta name="generator" content="Alpha Five HTML Editor Version 9 Build 1479-3182">
<title>MultiColunms</title>
</head>
<body>
<p>Choose One</p>
<form action="dropdown.a5w" method="get">
<select name="customer">
<option>1 Marcos Lopez</option>
<option>2 Maria Doe</option>
<option>3 June Lira</option>
</select>
<input type="submit" name="frmdrop" value="Show"></input>
</form>
<%a5 
if eval_valid("frmdrop")then
    ? "You Chose customer with Id:"+ word(customer,1)
end if
%>
</body></html>
      Last edited by Mario Prieto; 06-04-2008, 09:38 PM.
      The Mexican

      Comment

        #4
        Re: Multi-column dropdowns?

        I also just found this in the help:

        Displaying Multiple Fields in a Drop Down List

        Displaying multiple fields in a drop down list is a challenge because browsers automatically compress multiple white-space characters down to a single character. Thus, it is difficult to format columns.

        This example uses the underscore character "_" to guarantee that fields and columns are aligned. This example is based on the Invoice_Items table of the AlphaSports sample database.

        Creating the Drop Down List

        1.

        Create a grid based on the Invoice_Items table of the AlphaSports sample database.
        2.

        Display the Grid > Fields menu.
        3.

        Move the "Invoice_Number" field to the Selected Fields list.
        4.

        Select the "Invoice_Number" field in the Selected Fields list.
        1.

        Set its Display Settings > Control type property to "DropDownBox".
        2.

        Set its DropDownBox Properties > Height property to 10.
        3.

        Set its DropDownBox Properties > In-line style property to "font-family:Courier New; ".
        4.

        Set its DropDownBox Properties > Not in list rule property to "Do Nothing".
        5.

        Set its Column Properties > Column heading property to "Select Invoice Item".
        6.

        Set its Column Properties > Heading in-line style property to "font-family: Courier New; text-align: left;".
        5.

        Click in the DropDownBox Properties > Choices property to display the Define Choices dialog box.
        1.

        Set the Define Choices > List Type property to "Dynamic".
        2.

        Set the Data Source > Data source type property to "DBF-Table".
        3.

        Set the Data Source > Table name property to "invoice_items".
        4.

        Click in the Data Source > Display value field/expression property to display the Expression Builder.
        5.

        Enter the following expression and click OK.

        Invoice_Number+" "+alltrim(Product_Id) + " " + padl(str(Price,250,2,"$("),10,"_") + " " + padl(alltrim(str(quantity,10)),10,"_") + " " + padl(str(Extension,250,2,"$("),10,"_")

        6.

        Display the Grid > Properties menu.
        7.

        Set the Layout Options > Rows of data property to 1.
        8.

        Set the Customization > Total records message position property to ""No Message.
        9.

        Click in the Freeform Edit Regions > Above grid property to display the HTML Editor.
        10.

        Switch to the Source tab and enter the following text into the body of the page.

        <font face="Courier New"><strong>&nbsp;ID&nbsp;&nbsp;&nbsp;&nbsp; PID&nbsp;

        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Price&nbsp;&nbsp;&nbsp;Quantity</strong><font

        face=Tahoma>&nbsp;</font><strong>&nbsp;&nbsp;Extension</strong></font>

        11.

        Click Save in the HTML Editor and Save in the Grid Builder.
        12.

        Click Browser to preview your work. It should look something like the following. [Picture]

        See Also

        Contents

        Supported By

        Alpha Five Version 6 and Above
        Gary S. Traub, Ph.D.

        Comment

          #5
          Re: Multi-column dropdowns?

          Hi Mario,

          I appreciate you posting some actual code to illustrate. I put that code in an a5w page, in the source tab of course, but it will not run without the dropdown.a5w page. Could you provide that page? Or provide ehat needs to be on that page?

          Thanks!


          Gary
          Gary S. Traub, Ph.D.

          Comment

            #6
            Re: Multi-column dropdowns?

            The code I posted is the dropdown.a5w page!
            Create a new a5w page and then copy the code I posted, then save the a5w page as 'dropdown.a5w'

            Publish locally and view page.
            The Mexican

            Comment

              #7
              Re: Multi-column dropdowns?

              Marion,

              Thanks - that works!
              Gary S. Traub, Ph.D.

              Comment

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