ExtJs extension GroupPropertyGrid code_extjs

ExtJs itself provides rich space and good interface development, just like WinForm development. However, the ExtJs space also has imperfections, but it has shortcomings and its own methods of making up for it. The good scalability of ExtJs is the best way that ExtJs' own controls cannot achieve.
The most commonly used among these is the PropertyGrid of ExtJs. The PropertyGrid of ExtJs is quite simple to use. There are also corresponding examples on the official website of ExtJs. The simplicity will not be described here. However, the PropertyGrid of ExtJs itself cannot support grouping, and the properties cannot be grouped when displayed, which is quite depressing. I don't know why ExtJs doesn't provide such methods and interfaces.
So I Googled it online for a long time, and there was similar content on the Internet called "Extended Component: GroupingView PropertyGrid (Mengniu Version)". The author wrote very well, but I don’t know why he didn’t post the source code. There are no other good suggestions online. In desperation, I can only take some time to write it myself. So I opened the source code of ExtJs and found the source file of PropertyGrid. At first glance, it was relatively simple.
The main contents are:
PropertyRecord
PropertyStore
PropertyColumnModel
PropertyGrid
So I copied all the source code, created a script file named Ext.ux.grid.GroupPropertyGrid.js, and tested the value. It passed successfully. I started reading the source code of PropertyGrid and found the following problems:
1. PropertyRecord has too little content, only name and value.
2. PropertyStore uses Ext.data.Store instead of Ext.data.GroupingStore.
3. PropertyStore uses Grouping is not supported in the data, and the grouping is not processed when updating
And PropertyGrid does inherit EditorGridPanel, which itself can support Group grouping, so there is no need to modify the PropertyGrid.
The following will modify these issues to support grouping:
1. Modify the PropertyRecord and add the Group field.

Copy code The code is as follows:

Ext.ux.grid.GroupPropertyRecord=Ext.data. Record.create(
[{name:"name",type:"string"},"value","group"]
);

2. Modification PropertyStore to support GroupingStore

Copy code The code is as follows:

Ext.ux.grid.GroupPropertyStore = function(grid, source){
this.grid = grid;
this.store = new Ext.data.GroupingStore({
recordType : Ext.ux.grid.GroupPropertyRecord,
groupField : " group"
});
this.store.on('update', this.onUpdate, this);
if(source){
this.setSource(source);
}
Ext.ux.grid.GroupPropertyStore.superclass.constructor.call(this);
};
Ext.extend(Ext.ux.grid.GroupPropertyStore, Ext.util.Observable, {
setSource : function(o){
this.source = o;
this.store.removeAll();
var data = [];
for(var k in o){
if(this.isEditableValue(o[k])){
data.push(new Ext.ux.grid.GroupPropertyRecord({name: k, value: o[k],group:k},k));
}
else if(typeof(o[k]) == 'object'){
for(var n in o[k]){
data.push(new Ext.ux. grid.GroupPropertyRecord({name: n, value: o[k][n],group:k},k "&&" n));
}
}
}
this.store .loadRecords({records: data}, {}, true);
},

// private
onUpdate : function(ds, record, type){
if(type = = Ext.data.Record.EDIT){
var v = record.data['value'];
var oldValue = record.modified['value'];
if(this.grid.fireEvent ('beforepropertychange', this.source, record.id, v, oldValue) !== false){
if(record.id.indexOf("&&")!=-1)
{
var values ​​= record.id.split("&&");
this.source[values[0]][values[1]] = v;
}
else
{
this.source[record.id] = v;
}
record.commit();
this.grid.fireEvent('propertychange', this.source, record.id, v, oldValue);
}else{
record.reject();
}
}
},

// private
getProperty : function(row){
return this.store.getAt(row);
},

// private
isEditableValue: function(val){
if(Ext.isDate(val)){
return true;
}else if(typeof val == 'object' || typeof val == 'function'){
return false;
}
return true;
},

// private
setValue : function(prop, value){
this.source[prop] = value;
this.store.getById(prop).set('value', value);
},

// protected - should only be called by the grid. Use grid.getSource instead.
getSource : function(){
return this.source;
}
});

Mainly modified the SetSource and onUpdate methods, and modified the Store to GroupingStore. In this way, when you test it, you can successfully see that the PropertyGrid can be grouped. The rendering is as follows:

In this way, the whole work is completed.

Download all source codes: http://xiazai.jb51.net/201003/yuanma/GroupPropertyGrid.rar