RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid
are you asking how to reset an arraycollection back to zero values? Glenn From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Alex Harui Sent: Monday, April 07, 2008 5:30 AM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. _ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui [EMAIL PROTECTED] wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks image001.png
[flexcoders] Re: How can I clear an ArrayCollection or Datagrid
Hi Alex, I believe that there is a bug/feature with binding HTTPService result to a DataGrid. If HTTPService returns empty result (null), DataGrid won't be cleared from a previous values. To overcome this problem I had to use a dataProvider variable(ArrayCollection) which I clear every time before the request and then copy values from HTTPService. Before this topic I thought that this is feature, but after I saw your comments it is definitely a bug :) PS I have not found any other way of resetting the DataGrid. If you assign dataProvider to an empty ArrayCollection it won't help (presumably because DataGrid needs collectionChange event and nothing else) Cheers, Dmitri. --- In flexcoders@yahoogroups.com, Alex Harui [EMAIL PROTECTED] wrote: If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui aharui@ wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid
I have used AC API method removeAll() to clear an AC, and it properly updates the UI. Assigning an empty AC should do it as well, though. Tracy From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Alex Harui Sent: Monday, April 07, 2008 12:30 AM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui [EMAIL PROTECTED] wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid
I ran a simple test of DataGrid binding to arraycollection. If I set an empty array collection, the DataGrid resets properly. If the HTTPService returns an empty ArrayCollection I would expect the DG to also reset, but I don't have time to test that out. If it returns null, I'm not sure what it will generate, but again, if you detect that it returns null and set the array collection to an empty array collection it should reset the DG. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dmitri Girski Sent: Monday, April 07, 2008 8:22 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Hi Alex, I believe that there is a bug/feature with binding HTTPService result to a DataGrid. If HTTPService returns empty result (null), DataGrid won't be cleared from a previous values. To overcome this problem I had to use a dataProvider variable(ArrayCollection) which I clear every time before the request and then copy values from HTTPService. Before this topic I thought that this is feature, but after I saw your comments it is definitely a bug :) PS I have not found any other way of resetting the DataGrid. If you assign dataProvider to an empty ArrayCollection it won't help (presumably because DataGrid needs collectionChange event and nothing else) Cheers, Dmitri. --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui [EMAIL PROTECTED] wrote: If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui aharui@ wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
[flexcoders] Re: How can I clear an ArrayCollection or Datagrid
Assigning an empty AC should do it as well, though. Nope, it didn't work for me. I had this problem with both DataGrid AdvancedDataGrid and ended up with intermediate ArrayCollection.
[flexcoders] Re: How can I clear an ArrayCollection or Datagrid
removeAll() should do exactly what you are looking for, but only if your dataGrid's dataprovider is bound to the arrayCollection. If your dataGrid is not bound to the arrayCollection, the dataGrid will not change as data in the arrayCollection changes (unless you have accounted for this programatically elsewhere). If you do not want to use binding, the easiest thing would be to add a collection_change eventListener on the arrayCollection so you can clear out or update the dataGrid as the arrayCollection data changes. --- In flexcoders@yahoogroups.com, Tracy Spratt [EMAIL PROTECTED] wrote: I have used AC API method removeAll() to clear an AC, and it properly updates the UI. Assigning an empty AC should do it as well, though. Tracy From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Alex Harui Sent: Monday, April 07, 2008 12:30 AM To: flexcoders@yahoogroups.com Subject: RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders% 40yahoogroups.com , Alex Harui aharui@ wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders% 40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders% 40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders% 40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid
Well, it worked for me in a simple test. I'd be interested in your scenario to see why it was different. Maybe you had bindings that overwrote your manual updating. -Alex From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dmitri Girski Sent: Monday, April 07, 2008 11:41 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Assigning an empty AC should do it as well, though. Nope, it didn't work for me. I had this problem with both DataGrid AdvancedDataGrid and ended up with intermediate ArrayCollection.
RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid
If you've assigned an arraycollection (as opposed to an array) to the DataGrid but are not using binding, the DataGrid will refresh when you call removeAll(). Whether you use binding or not, once the DG has a reference to an arraycollection instance and you change that instance, the datagrid will notice. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jmfillman Sent: Monday, April 07, 2008 11:50 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid removeAll() should do exactly what you are looking for, but only if your dataGrid's dataprovider is bound to the arrayCollection. If your dataGrid is not bound to the arrayCollection, the dataGrid will not change as data in the arrayCollection changes (unless you have accounted for this programatically elsewhere). If you do not want to use binding, the easiest thing would be to add a collection_change eventListener on the arrayCollection so you can clear out or update the dataGrid as the arrayCollection data changes. --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Tracy Spratt [EMAIL PROTECTED] wrote: I have used AC API method removeAll() to clear an AC, and it properly updates the UI. Assigning an empty AC should do it as well, though. Tracy From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of Alex Harui Sent: Monday, April 07, 2008 12:30 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders% 40yahoogroups.com , Alex Harui aharui@ wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders% 40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders% 40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders% 40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
[flexcoders] Re: How can I clear an ArrayCollection or Datagrid
--- In flexcoders@yahoogroups.com, Alex Harui [EMAIL PROTECTED] wrote: I ran a simple test of DataGrid binding to arraycollection. If I set an empty array collection, the DataGrid resets properly. well, I am pretty sure it did not work with AdvancedDataGrid - it was a first time I've bumped into this problem. It was AdvancedDataGrid from a Flex3 Beta 2 when I discovered it. Dmitri. If the HTTPService returns an empty ArrayCollection I would expect the DG to also reset, but I don't have time to test that out. If it returns null, I'm not sure what it will generate, but again, if you detect that it returns null and set the array collection to an empty array collection it should reset the DG. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dmitri Girski Sent: Monday, April 07, 2008 8:22 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Hi Alex, I believe that there is a bug/feature with binding HTTPService result to a DataGrid. If HTTPService returns empty result (null), DataGrid won't be cleared from a previous values. To overcome this problem I had to use a dataProvider variable(ArrayCollection) which I clear every time before the request and then copy values from HTTPService. Before this topic I thought that this is feature, but after I saw your comments it is definitely a bug :) PS I have not found any other way of resetting the DataGrid. If you assign dataProvider to an empty ArrayCollection it won't help (presumably because DataGrid needs collectionChange event and nothing else) Cheers, Dmitri. --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui aharui@ wrote: If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui aharui@ wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
[flexcoders] Re: How can I clear an ArrayCollection or Datagrid
I also do have same kind of problem. But I never tried to refresh the array collection. I tied a button to the Httpservice and once the array is populated if you press the button, which send the httpservice request, all the data disappear. Now if you press the button second time, that means send the httpservice request second time, the data shows up with the updated values. I guess what Alex said is happening in my case. When I first press the button, httpservice returns an empty arraycollection, but when the button is pressed the second time it returns the updated array. But one thing I do not understand- why would it return empty arraycollection? When I coded I expected it to remove all the elements from the array collection and the put the new httpservice request's return result --- In flexcoders@yahoogroups.com, Alex Harui [EMAIL PROTECTED] wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
[flexcoders] Re: How can I clear an ArrayCollection or Datagrid
Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com, Alex Harui [EMAIL PROTECTED] wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
RE: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid
If the service returned an empty AC, I would verify that the DG has really been assigned that empty AC. Read back the dataProvider on the DG and see what its length is. You can also try to manually reset the DG to an empty AC and see if it refreshes that way. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of jovialrandor Sent: Sunday, April 06, 2008 5:13 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: How can I clear an ArrayCollection or Datagrid Alex, the HTTPService returns an empty arraycollection, but the datagrid still has the values from the last call. How do I in the code refresh the arraycollection, since the 'refresh ()' did not work? Thanks --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Alex Harui [EMAIL PROTECTED] wrote: I would think that your service should return an empty array collection, or return a failure. If it returns an empty array collection it should refresh. If it returns a failure, then you should set the arraycollection to an empty arraycollection on failure From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of jovialrandor Sent: Saturday, April 05, 2008 9:16 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] How can I clear an ArrayCollection or Datagrid I use a HTTPService to load data into an ArrayCollection which is used for a datagrid. For example I type in a parameter A to the HTTPService that returns data that gets loaded in to ArrayCollectin. However when I when resend the HTTPservice with parameter B that returns no data, the datagrid still displays the value of parameter A. I've tried: httpservice.send(); // To get new values arraycollection.refresh(). // To refresh the datagrid. But no luck. Thanks
