www.gusucode.com > 支持select显示复选框的JS列表框插件源码程序 > 支持select显示复选框的JS列表框插件/dhtmlxCombo/dhtmlxCombo/sources/ext/dhtmlxcombo_group.js

    //v.2.1 build 90226

/*
Copyright DHTMLX LTD. http://www.dhtmlx.com
You allowed to use this component or parts of it under GPL terms
To use it on other terms or get Professional edition of the component please contact us at sales@dhtmlx.com
*/
dhtmlXCombo.prototype.attachChildCombo = function(_chcombo,xml){
	if(!this._child_combos){
		this._child_combos = [];
	}
	
	this._has_childen = 1;
	
	this._child_combos[this._child_combos.length] = _chcombo;
	
	_chcombo.show(0);
	
	var that = this;
	var _arg_length = arguments.length;
	
	this.attachEvent("onChange",function(){
		for(var i = 0; i < that._child_combos.length; i++){
		
			if(that._child_combos[i]==_chcombo){
				_chcombo.show(1);
				_chcombo.callEvent("onMasterChange",[that.getActualValue(),that]);
			}
		
		}
		
		if(that.getActualValue()=="") { 
			that.showSubCombo(that,0);
			return;
		}
		
			if(_chcombo._xml){
				if(_arg_length ==1) xml = _chcombo._xml;  
				_chcombo._xml = that.deleteParentVariable(xml)+((_chcombo._xml.indexOf("?")!=-1)?"&":"?")+"parent="+that.getActualValue();			
			}
			else{
				if(xml){
					_chcombo.clearAll(true);
					xml = that.deleteParentVariable(xml) +((xml.indexOf("?")!=-1)?"&":"?")+"parent="+that.getActualValue();		
					_chcombo.loadXML(xml);
				}
				
			}
	})
}
dhtmlXCombo.prototype.setAutoSubCombo = function(xml,name){
	if(arguments.length == 1) name = "subcombo";
	if(!this._parentCombo){ 
		var z = new dhtmlXCombo(this.DOMParent,name,this.DOMelem.style.width)
		z._parentCombo  = this;
	} 
	else {
		var z = new dhtmlXCombo(this._parentCombo.DOMParent,name,this._parentCombo.DOMelem.style.width)
		z._parentCombo = this._parentCombo;
	}
	if(this._filter) z._filter = 1;
	if(this._xml){
		if(arguments.length > 0) 
			z._xml = xml;
		else  
			z._xml = this._xml;
		xml = z._xml;
        z._autoxml = this._autoxml;
		if(this._xmlCache) z._xmlCache=[];
     }
	
	this.attachChildCombo(z,xml)	
	return z;
}

dhtmlXCombo.prototype.detachChildCombo = function(_chcombo){
	for(var i = 0; i < this._child_combos.length; i++){
		this._child_combos[i] == _chcombo;
		this._child_combos.splice(i,1);
	}
	_chcombo.show(1);
}

dhtmlXCombo.prototype.showSubCombo = function(combo,state){
	if(combo._child_combos){
		for(var i = 0; i < combo._child_combos.length; i++){
			combo._child_combos[i].show(state);
			combo.showSubCombo(combo._child_combos[i],0);
		}
	}
}

dhtmlXCombo.prototype.deleteParentVariable = function(str){
	str = str.replace(/parent\=[^&]*/g,"").replace(/\?\&/,"?");
	return str;
}