how to set the asynchronism in Ext.data.connection

[zf4000]

when i use Ext.data.connection to get the responseText returned from the server, the statment in Ext.data.connection.request() is exacuted later than that out of Ext.data.connection.request().
so , i think that may result from asynchronism of ajax.
but how to set the asynchronism in Ext.date.connection.
some one can help me?
here is the code


var con = new Ext.data.Connection();
con.request({
url: 'someurl',
method: 'GET',
loadMask: true,
callback: function(oElement,bSuccess,oRespons) {
alert('i am in Ext.data.Connection');
}
)
alert('i am out of Ext.data.Connection!');


the question is : 'i am out of ...' is erlier than 'i am in ...'

[liggett78]

You think right. Ext.data.Connection.request() function executes asynchronously. This is what you want, don't you? Or what do you mean by "set asynchronism in Ext.date.connection"?

[Animal]

It is asynchronous. There is no support in Ext for synchronous server requests.

[zf4000]

i want the script " alert('i am out of Ext.data.Connection!'); " don't execute until the server return some response.
sometimes , i will do somthing according to the respons returned from server.
for example, init Class Ext.grid.ColumnModel from the fields information(json object) returned from server.

anybody can help me?

[Animal]

Yes, that's what the callback is for: http://extjs.com/deploy/ext/docs/output/Ext.data.Connection.html#request

In the latest release there's also a "requestcomplete" event.

[zf4000]

i have serched the sourcecode of Ext-all-debug and find the requestcomplete.
thanks

[Animal]

Don't try that. Just use the callback as you are already doing.