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How to remove dynamic parameter in extjs in next request?

I am working on extjs 3.4.0 and I wanted to add extra parameter in request to identify whether respective button is clicked or not (lets say clear filter button).
I have added that parameter in following way-
tbar: new Ext.PagingToolbar({
pageSize: 25,
store: PHOPHTStore,
displayInfo: true,
displayMsg: 'Displaying reports {0} - {1} of {2}',
emptyMsg: "No reports to display",
plugins: [PHOPHTFilters],
items:['-',{
text: 'Clear Filters',
iconCls:'x-btn-text-icon',
icon:'../images/tmp/cancel.gif',
tooltip:'Clear currently applied filters',
handler: function() {
PHOPHTGrid.filters.clearFilters();
PHOPHTStore.load({ params: { actionFilter: "clear" } });
}
}
})
Now the situation is I have added this { actionFilter: "clear" } when clear filter button is clicked.But this parameter is carried forward in every next request.I want to remove this as soon as this request is occurred OR when next request is demanded like ascending/descending column OR any other request.
I was planning to to this in -
listeners: {
'beforeload' : function() {
loadMask.msg = "Loading Reports(s), please wait...";
loadMask.show();
},
'load' : function() {
loadMask.hide();
}
}
Is there any other any way to store this parameter at this button click
OR
How can I remove this added parameter in any way?
please suggest

You can try Ext.Ajax.extraParams. I use this approach when loading data from server.
Partial example:
xloaddata: function() {
var me = this;
var v = me.edit_search.getValue();
me.store.proxy.extraParams = {
tablename: me.xtablename,
filter: v
)
};
me.store.loadPage(1);
me.store.proxy.extraParams = {
tablename: me.xtablename
};
}

kendo ui grid batch editing, set focus

I working on a kendo ui grid. The grid is not-editable as default.
In the toolbar is a 'edit' button. When the user clicks on it, the grid should be editable in batch mode like this.
The only solution to get this work is remove and recreate the grid/datasource with new properties (editable:true etc).
This works as expected. Now I want to set the focus on the first row/cell, so that the user can see that the grid is editable now (in the example below the row becomes an input field).
Any suggestions for this?
Here is a fiddle for this.
$('.k-grid-edit').on('click', function (e) {
e.preventDefault();
// remove old grid
$('#grid').html('');
// recreate grid with edit: true and new datasource
$('#grid').kendoGrid({
dataSource: dataSourceInEdit,
editable: true,
columns: [{
field: 'TableId',
title: 'Id',
width: 50
}, {
field: 'Area',
title: 'Area'
}, {
field: 'Table',
title: 'Table',
width: 60
}, {
command: 'destroy',
title: ' ',
width: 100
}]
}).data("kendoGrid");
}); // end edit

Okay, I got it:
These 2 lines make it happen:
var grid = $("#rt_tableGrid").data("kendoGrid");
grid.editRow($("#rt_tableGrid tr:eq(1)"));
Certainly only on my local script, in the Fiddle I cant´t get it to work.
Although in the Docu is written: Requires "inline" or "popup"
Documentation here

EXTJS GRID and store

I have EXT JS 4.2 Grid and store.
Now one page load grid get data from store and display on UI.
I have date drop down filter on page. on date selection of date filter one request should go to server fetch data from db and reload store with updated data, and grid should update with updated store value.
My issue is how can i unbind exiting store from grid load, set store params with date, then fetch new data in store and bind to grid. and show updated data on grid?
thanks in advance
this is code where grid is created , one button is created on click of which new params needs to pass to server
{
xtype: 'container',
layout: 'hbox',
style: 'margin-left: 152px;',
width: 960,
height: 'auto',
cls: 'portlet full',
items: Ext.getCmp('grid')
}, { //Create Button to fetch Grid Checked Data//
xtype: 'container',
layout: 'hbox',
style: 'margin-left: 163px;padding-top: 20px;padding-bottom: 59px;',
items: [
Ext.create('Ext.Button', {
name: 'Click me',
width:'40px',
handler: function() {
update =============================================
Ext.create('store', {storeId: 'storetest2'}).load({
params: {
// To send Extra Params
'lastname':'test2'
},
callback: function(records, operation, success) {
// To Perform some call back operations
}
});
scndStore = Ext.data.StoreManager.lookup('storetest2'),
Ext.getCmp('grid').reconfigure(scndStore);
update =============================================
})
],

After getting data into the new store,you can use
grid.reconfigure(store, [columns])
to change which store is bound to the grid..Please have a look docs.
A simple working fiddle
Update:Try this
var store2 = Ext.create('Ext.data.Store', {
model : 'store2Model', //Don't miss to mention model
storeId: 'storetest2',
proxy : {
type : 'ajax',
url :'someUrl'
reader : {
type : 'json',
root : 'items' // depends
}
}
});
store2.load({
params: {
// To send Extra Params
'lastname':'test2'
},
callback: function(records, operation, success) {
grid = Ext.getCmp('grid'); //First check whether you are getting this comp properly
grid.reconfigure(store2);
}
});

It is fixed with this.getStore().load({ params: {test:'test1'},.. I was using filter and I was not clearing it before second load .this.getStore().clearFilter(true);

Sencha Touch 2: How to override back button on Navigation View

I was wondering how to ovverride the back button on a navigation view. I tried using onBackButtonTap but it doesnt seem to work http://www.senchafiddle.com/#8zaXf
var view = Ext.Viewport.add({
xtype: 'navigationview',
onBackButtonTap: function () {
alert('Back Button Pressed');
},
//we only give it one item by default, which will be the only item in the 'stack' when it loads
items: [
{
//items can have titles
title: 'Navigation View',
padding: 10,
//inside this first item we are going to add a button
items: [
{
xtype: 'button',
text: 'Push another view!',
handler: function() {
//when someone taps this button, it will push another view into stack
view.push({
//this one also has a title
title: 'Second View',
padding: 10,
//once again, this view has one button
items: [
{
xtype: 'button',
text: 'Pop this view!',
handler: function() {
//and when you press this button, it will pop the current view (this) out of the stack
view.pop();
}
}
]
});

The fiddle you've mentioned works well in my local project on my machine. For some reason, it doesn't work on fiddle site. Try running it on your local project.
Still instead of using onBackButtonTap config, it's good to extend Ext.navigation.View class and override onBackButtonTap method. That way you'll have more control over whole components. You'd also like to override other configs as well. Here's what I'd use -
Ext.namespace('Ext.ux.so');
Ext.define('Ext.ux.so.CustomNav',{
extend:'Ext.navigation.View',
xtype:'customnav',
config:{
},
onBackButtonTap:function(){
this.callParent(arguments);
alert('back button pressed');
}
});
the line this.callParent(arguments) will allow component to behave in default way + the way to wanted it to behave. And if you want to completely override the back button behavior you can remove this line. Try doing both ways.
To use this custom component, you can use -
launch: function() {
// Destroy the #appLoadingIndicator element
Ext.fly('appLoadingIndicator').destroy();
var view = Ext.create('Ext.ux.so.CustomNav', {
fullscreen: true,
items: [{
title: 'First',
items: [{
xtype: 'button',
text: 'Push a new view!',
handler: function() {
//use the push() method to push another view. It works much like
//add() or setActiveItem(). it accepts a view instance, or you can give it
//a view config.
view.push({
title: 'Second',
html: 'Second view!'
});
}
}]
}]
});
}
Give this a shot. It'll work for you yoo.

how to load mask while the grid is double clicked to wait for the detail window

forum member I am having one problem while using the loadMask property of the extjs 4.0.2a. Actually I am having one grid which on click open the window with detail information.
As my detail window takes more time to come on screen, so I just decided to make use of the loadMask property of Extjs. But don't know why the loading message is not shown when I double click the grid row and after some time the detail window is shown on the screen.
on grid double click I am executing the below code
projectEditTask: function(grid,cell,row,col,e) {
var myMask = new Ext.LoadMask(Ext.getBody(), {msg:"Loading.."});
myMask.show();
var win = this.getProjectGanttwindow();
win.on('show', myMask.hide, myMask);
}
but don't know the loading is not displayed and after waiting for some moment my window is shown correctly.
I just want when I double click the grid Loading message should be displayed and after when the window is load completely Loading message should be dissapear and detail window should be viewed.
when I made the changes as per you said the loading message is displayed but my window is not opened yet. below is the code of window I am trying to open
my projectGanttwindow is
Ext.define('gantt.view.projectmgt.projectGanttwindow' ,{
extend: 'Ext.window.Window',
alias : 'widget.projectganttwindow',
requires: ['gantt.view.projectmgt.projectGanttpanel'],
editform:1,
id: 'projectganttwindow',
title: 'Project Management',
width: '100%',
height: '100%',
closeAction: 'destroy',
isWindow: true,
flex:1,
isModal: true,
constrain: true,
maximizable: true,
stateful: false,
projectId: null, // this will be set before showing window
listeners: {
hide: function() {
alert('hide');
//var store = Ext.data.StoreManager.lookup('taskStore').destroyStore();
//Ext.destroy(store);
//store.destroyStore();
console.log('Done destroying');
}
},
initComponent: function() {
var me = this;
me.layoutConfig = {
align: 'stretch'
};
me.items = [{
xtype: 'projectganttpanel',
allowBlank: false
}];
me.callParent(arguments);
me.on({
scope: me,
beforeshow: me.onBeforeShow
});
},
onBeforeShow: function() {
var projectId = this.projectId;
console.log('BEFOR SHOW ::'+projectId);
if(projectId != null) {
var store = Ext.data.StoreManager.lookup('taskStore');
store.load({
params: {'id': projectId}
});
}
}
});

Try this
function loadMask(el,flag,msg){
var Mask = new Ext.LoadMask(Ext.get(el), {msg:msg});
if(flag)
Mask.show();
else
Mask.hide();
}
When u click on grid call this function
//Enable mask message
loadMask(Ext.getBody(),'1','Please wait...');
After pop loaded call
//Disable mask Message
loadMask(Ext.getBody(),'','Please wait...');