Is there any event get fired upon completion of data loading into richtextbox...
can't use text_changed as it called every time any single alphabet/number/symbol loaded... just looking for some help for some event to be called upon completion of data.
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I'm working on a C application using Gtk for the GUI. We have custom slider widgets connected to the "mouse scrolled" event with a callback function. The problem is each scrolling increment will trigger the callback once, which updates a parameter and refreshes a computationaly-expensive rendering. So, when the user scrolls more than once, the GUI freezes until all scrolls are processed individually in sequence.
I want to have the multiple unit scrolling increments recorded as one flat increment, such that the expensive rendering is started only once the user is done scrolling, so we only record all increments until the scrolling is finished and then we update the parameter and refresh the rendering.
My first idea was to have the "mouse scrolled" callback emit some "update" signal and save :
the timestamp of the scroll event long t,
the number of scrolling increments int steps
Each new scrolling event would increment the steps counter and overwrite the timestamp.
Then, the "update" signal would be captured by a function that would wait for t + 0.5 s to actually save the slider value and trigger a new rendering. If the user performs a new scrolling during that time, the function would just keep waiting.
Is there a Gtk or C API to perform that kind of task ?
If a message was added to Snackbar's queue with the durationOverride parameter, it will disappear after that duration. Is it possible to handle such scenario and execute some code in ViewModel?
The main point of the question: I need the event that fires when the new rows have been rendered and the selection has been restored.
I refresh my grid by calling store.load method. I have a handler for store.load event. It fires when data have been loaded, but before new rows rendering.
I tried afterrender, viewready, selectionchange both in Ext.grid.Panel and Ext.view.Table (the view of the gird), but these events don't fire after every store.load event.
I need this event to work with the restored selection and perform some operations.
instead of calling the load call doRefresh() it will fire beforechange event and change events on the paging toolbar then handle those things in those events do what ever you want todo
you can use:
grid.getView().refresh();
method after store load. It will refresh grid view content.
I am using ExtJs 4.1 grid. I have enabled the remoteSort in the store & enabled sortable property for the columns. Everytime I sort\click on column header, a call is made to the server with sort params being passed in the query string.
I want to know if there is a client side event, which gets fired before call is made to the server? I want to check certain condition and based on that I may cancel the call to the server.
Please suggest.
There is a sortChange event that gets fired whenever you sort the grid.
See the documentation here.
I have created a fiddle demo that logs to the console every time the grid is sorted. It should help.
If that doesn't work you'd likely need to attach to the stores beforeSort or the refresh event.
EDIT: As the beforeSort event is not available for ExtJs Version 4, you'd likely need to listen to the refresh event:
Refresh: Fires when the data cache has changed in a bulk manner (e.g., it has been sorted, filtered, etc.) and a widget that is using this Store as a Record cache should refresh its view.
I am developing application using ExtJS 4.1. I have one spinner field and I want to change value of that method programatically. I have set up listeners like change, spinup and spindown for this same spinner field.
Now I would like to know how to prevent listener method of these events getting fired only when I change the value of spinner field through my program?
For example,
var mySpinner = Ext.ComponentQuery.query('#foopanel > #mySpinner')[0];
mySpinner.setValue(2000);
When mySpinner.setValue(2000); line is executed, change event of mySpinner gets fired and as I have listener method for this change event, that listener method is executed.
Is it possible to prevent invocation of change event listener method?
Thanks..
You could suspend all events by calling
mySpinner.suspendEvents();
mySpinner.setValue(2000);
mySpinner.resumeEvents();
That would be the cleanest an easiest way IMO
And that's also a usecase why this methods exist