[flexcoders] viewstack

Wed, 15 Jun 2005 04:37:35 -0700

hi ,
 
 recently i am using the view stack i have two pages in that.i want like the page which defined in the url but not able to do also i can not understand the code so please help me to achive this type of page using animation give the sample code for that.previously i have put a question but no reply today i hope some one must help me i am anew user to flex 
http://www.richinternetapps.com/archives/000108.html
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED]On Behalf Of Dirk Eismann
Sent: Wednesday, June 15, 2005 3:18 PM
To: [email protected]
Subject: RE: [flexcoders] Design flaw in DataGrid sorting

You can sort Date objects by sorting on their numerical getTime() value, i.e.

<mx:Script>
  private function sortColumn(evt:Object):Void {
    if (evt.target.sortDirection == "DESC") {
      var arrayFlags:Number = Array.DESCENDING;
    } else {
      var arrayFlags:Number = Array.ASCENDING;
    }
    evt.target.sortItems(sortByDate, arrayFlags);
  }

  public function sortByDate(itemA:Object, itemB:Object, flags:Number):Number {
    var a:Date = itemA.date;
    var b:Date = itemB.date;
    if (flags == Array.ASCENDING) {
      if (a.getTime() < b.getTime()) return -1;
      if (a.getTime() == b.getTime()) return 0;
      if (a.getTime() > b.getTime()) return 1;
    } else {
      if (a.getTime() < b.getTime()) return 1;
      if (a.getTime() == b.getTime()) return 0;
      if (a.getTime() > b.getTime()) return -1;
    }
  }
</mx:Script>

<mx:DataGrid
  id="dateGrid"
  dataProvider="{data}"
  headerRelease="sortColumn(event)"
  >
  <mx:columns>
    <mx:Array>
      <mx:DataGridColumn sortable="true" columnName="date" headerText="Date" />
    </mx:Array>
  </mx:columns>
</mx:DataGrid>


Dirk.


> -----Original Message-----
> From: [email protected] [mailto:[EMAIL PROTECTED]
> Behalf Of Sean McKibben
> Sent: Tuesday, June 14, 2005 9:35 PM
> To: [email protected]
> Subject: [flexcoders] Design flaw in DataGrid sorting
>
>
> I have to call the data grid's sorting mechanism flawed.
>
> Let's examine a case where you want to sort a dataGrid by a date 
> column. In all likelihood, you're going to have a labelFunction to 
> format your date objects into a string. Depending on your locale, 
> that string is probably not what you want to sort on (i.e. 02/04/05 
> comes before 02/03/06 on the calendar, but not as a string),
> so you'd 
> like to write a sortCompare function for that column.
>
> Unfortunately, the sortCompare function only receives the string 
> value from the labelFunction, so you'd either have to do some very 
> slow string parsing, or sort based on the results from the 
> labelFunction alone. You don't get a chance to compare any more 
> information about a row than the string returned by a labelFunction, 
> and the labelFunction can only return a string.
>
> Not a good way to do it, Macromedia!
>
> So, what is the best workaround? Let it sort once, then resort using 
> the headerRelease event and operating on the DataProvider? (assuming 
> headerRelease fires after sorting is done - contrary to the 
> documentation, but in line with Ailstair McLeod's tests)
>
>
> Sean
>
>
>
> 
> Yahoo! Groups Links
>
>
>
> 
>
>
>
>

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