ig_webgrid_dom.js

研究怎样通过手写代码来完成自动生成代码

	this.oActiveRow=null;
	this.ActiveRow="";
	this.oActiveCell.renderActive();
	if(this.oActiveCell.Row!=oldARow)
		this.setNewRowImg(null);
	this.oActiveCell.Row.setSelectedRowImg();
	this.colButtonMouseOut();
	if(this.AddNewBoxVisible)
		this.updateAddNewBox();
	igtbl_activate(this.Id);
	this.fireEvent(this.Events.CellChange,[this.Id,this.oActiveCell.Element.id]);
	if(this.oActiveCell.Row!=oldARow)
		this.fireEvent(this.Events.AfterRowActivate,[this.Id,this.oActiveCell.Row.Element.id]);
},
"getActiveRow",
function()
{
	if(this.oActiveRow!=null)
		return this.oActiveRow;
	if(this.oActiveCell!=null)
		return this.oActiveCell.Row;
	return null;
},
"setActiveRow",
function(row,force,fireEvents)
{
	if(!this.Activation.AllowActivation || this.insideSetActive)
		return;
	if(typeof(fireEvents)=="undefined")
		fireEvents=true;
	if(!row || !row.Element || row.Element.tagName!="TR")
		row=null;
	if(!force && (row && this.oActiveRow==row || this.exitEditCancel))
	{
		this.noCellChange=true;
		return;
	}
	if(!row)
	{
		this.ActiveCell="";
		this.ActiveRow="";
		var row=null;
		if(this.oActiveCell)
			row=this.oActiveCell.Row;
		else if(this.oActiveRow)
			row=this.oActiveRow;
		if(row)
			row.setSelectedRowImg(true);
		if(this.oActiveCell)
			this.oActiveCell.renderActive(false);
		if(this.oActiveRow)
			this.oActiveRow.renderActive(false);
		this.oActiveCell=null;
		this.oActiveRow=null;
		if(this.AddNewBoxVisible)
			this.updateAddNewBox();
		return;
	}
	var change=true;
	var oldACell=this.oActiveCell;
	var oldARow=this.oActiveRow;
	if(!oldARow && oldACell)
		oldARow=oldACell.Row;
	this.endEdit();

	if(fireEvents && row!=oldARow && oldARow)
		oldARow.processUpdateRow();
	if(this.exitEditCancel || fireEvents && this.fireEvent(this.Events.BeforeRowActivate,[this.Id,row.Element.id])==true)
		change=false;
	if(!change)
	{
		this.noCellChange=true;
		return;
	}
	this.noCellChange=false;
	if(this.oActiveCell)
		this.oActiveCell.renderActive(false);
	if(this.oActiveRow)
		this.oActiveRow.renderActive(false);
	this.oActiveRow=row;
	this.ActiveRow=row.Element.id;
	this.oActiveCell=null;
	this.ActiveCell="";
	this.oActiveRow.renderActive();
	this.oActiveRow.setSelectedRowImg();
	this.colButtonMouseOut();
	if(this.AddNewBoxVisible)
		this.updateAddNewBox();
	igtbl_activate(this.Id);
	if(fireEvents)
		this.fireEvent(this.Events.AfterRowActivate,[this.Id,row.Element.id]);
},
"deleteSelectedRows",
function()
{
	igtbl_deleteSelRows(this.Id);
	igtbl_activate(this.Id);
	this._recalcRowNumbers();	
},
"unloadGrid",
function()
{
	if(this.Id)
		igtbl_unloadGrid(this.Id);
},
"beginEditTemplate",
function()
{
	var row=this.getActiveRow();
	if(row)
		row.editRow();
},
"endEditTemplate",
function(saveChanges)
{
	var row=this.getActiveRow();
	if(row)
		row.endEditRow(saveChanges);
},
"find",
function(re,back)
{
	var g=this;
	if(re)
		g.regExp=re;
	if(!g.regExp)
		return null;
	g.lastSearchedCell=null;
	if(back==true || back==false)
		g.backwardSearch=back;
	var row=null;
	if(!g.backwardSearch)
	{
		row=g.Rows.getRow(0);
		if(row && row.getHidden())
			row=row.getNextRow();
		while(row && row.find()==null)
			row=row.getNextTabRow(false,true);
	}
	else
	{
		var rows=g.Rows;
		while(rows)
		{
			row=rows.getRow(rows.length-1);
			if(row && row.getHidden())
				row=row.getPrevRow();
			if(row && row.Expandable)
				rows=row.Rows;
			else
			{
				if(!row)
					row=rows.ParentRow;
				rows=null;
			}
		}
		while(row && row.find()==null)
			row=row.getNextTabRow(true,true);
	}
	return g.lastSearchedCell;
},
"findNext",
function(re,back)
{
	var g=this;
	if(!g.lastSearchedCell)
		return this.find(re,back);
	if(re)
		g.regExp=re;
	if(!g.regExp)
		return null;
	if(back==true || back==false)
		g.backwardSearch=back;
	var row=g.lastSearchedCell.Row;
	while(row && row.findNext()==null)
		row=row.getNextTabRow(g.backwardSearch,true);
	return g.lastSearchedCell;
},
"alignStatMargins",
function()
{
	if(this.StatHeader)
		this.StatHeader.ScrollTo(this.Element.parentNode.scrollLeft);
	if(this.StatFooter)
		this.StatFooter.ScrollTo(this.Element.parentNode.scrollLeft);
},
"selectCellRegion",
function(startCell,endCell)
{
	var sCol=startCell.Column,eCol=endCell.Column;
	if(sCol.Index>eCol.Index)
	{
		var c=sCol;
		sCol=eCol;
		eCol=c;
	}
	var sRow=startCell.Row,sRowIndex=sRow.getIndex(),eRow=endCell.Row,eRowIndex=eRow.getIndex();
	if(sRowIndex>eRowIndex)
	{
		var c=sRow;
		sRow=eRow;
		eRow=c;
		var i=sRowIndex;
		sRowIndex=eRowIndex;
		eRowIndex=i;
	}
	var pc=sRow.OwnerCollection;
	var band=sCol.Band;
	var selArray=new Array();
	for(var i=sRowIndex;i<=eRowIndex;i++)
	{
		var row=pc.getRow(i);
		if(!row.getHidden())
			for(var j=sCol.Index;j<=eCol.Index;j++)
			{
				var col=band.Columns[j];
				if(col.getVisible())
				{
					var cell=row.getCellByColumn(col);
					if(cell)
						selArray[selArray.length]=cell.Element.id;
				}
			}
	}
	if(selArray.length>0)
		igtbl_gSelectArray(this.Id,0,selArray);
	delete selArray;
},
"selectRowRegion",
function(startRow,endRow)
{
	var sRowIndex=startRow.getIndex(),eRowIndex=endRow.getIndex();
	if(sRowIndex>eRowIndex)
	{
		var r=startRow;
		startRow=endRow;
		endRow=r;
		var i=sRowIndex;
		sRowIndex=eRowIndex;
		eRowIndex=i;
	}
	var pc=startRow.OwnerCollection;
	var selArray=new Array();
	for(var i=sRowIndex;i<=eRowIndex;i++)
	{
		var row=pc.getRow(i);
		if(!row.getHidden())
			selArray[selArray.length]=row.Element.id;
	}
	if(selArray.length>0)
		igtbl_gSelectArray(this.Id,1,selArray);
	delete selArray;
},
"selectColRegion",
function(startCol,endCol)
{
	if(startCol.Index>endCol.Index)
	{
		var c=startCol;
		startCol=endCol;
		endCol=c;
	}
	var band=startCol.Band;
	var selArray=new Array();
	for(var i=startCol.Index;i<=endCol.Index;i++)
	{
		var col=band.Columns[i];
		if(col.getVisible())
			selArray[selArray.length]=col.Id;
	}
	if(selArray.length>0)
		igtbl_gSelectArray(this.Id,2,selArray);
	delete selArray;
},
"startHourGlass",
function()
{
	if(!igtbl_waitDiv)
	{
		igtbl_waitDiv=document.createElement("div");
		document.body.appendChild(igtbl_waitDiv);
		igtbl_waitDiv.style.zIndex=10000;
		igtbl_waitDiv.style.position="absolute";
		igtbl_waitDiv.style.left=0;
		igtbl_waitDiv.style.top=0;
		igtbl_waitDiv.style.backgroundColor="transparent";
	}
	igtbl_waitDiv.style.display="";
	igtbl_waitDiv.style.width=document.body.clientWidth;
	igtbl_waitDiv.style.height=document.body.clientHeight;
	igtbl_waitDiv.style.cursor="wait";
	igtbl_wndOldCursor=document.body.style.cursor;
	document.body.style.cursor="wait";
},
"stopHourGlass",
function()
{
	if(igtbl_waitDiv)
	{
		igtbl_waitDiv.style.cursor="";
		igtbl_waitDiv.style.display="none";
		document.body.style.cursor=igtbl_wndOldCursor;
	}
},
"clearSelectionAll",
function()
{
	igtbl_clearSelectionAll(this.Id);
},
/*** OBSOLETE ***/
"alignGrid",
function(){},
"suspendUpdates",
function(suspend)
{
	if(suspend==false)
	{
		this.SuspendUpdates=false;
	}
	else
		this.SuspendUpdates=true;
},
/*** END OBSOLETE ***/
"beginEdit",
function()
{
	if(this.activeCell)
		this.activeCell.beginEdit();
},
"endEdit",
function()
{
	igtbl_hideEdit(this.Id);
},
"fireEvent",
function(eventObj,args)
{
	if(!this.GridIsLoaded) return;
	var result=false;
	if(eventObj[0]!="")
		result=eval(eventObj[0]).apply(this,args);
	if(this.GridIsLoaded && result!=true && eventObj[1]==1 && !this.CancelPostBack)
		this.NeedPostBack=true;
	this.CancelPostBack=false;
	return result;
},
"setNewRowImg",
function(row)
{
	var gs=this;
	if(row)
		row.setSelectedRowImg(true);
	if(gs.newImg!=null)
	{
		gs.lastSelectedRow=null;
		var imgObj;
		imgObj=document.createElement("img");
		imgObj.src=gs.BlankImage;
		imgObj.border="0";
		imgObj.setAttribute("imgType","blank");
		gs.newImg.parentNode.appendChild(imgObj);
		gs.newImg.parentNode.removeChild(gs.newImg);
		var oRow = igtbl_getRowById(imgObj.parentNode.parentNode.id);
		if (oRow)gs._recalcRowNumbers(oRow);
		gs.newImg=null;
	}
	if(!row || row.Band.getRowSelectors()==2||row.Band.AllowRowNumbering>1)
		return;
	var imgObj;
	imgObj=document.createElement("img");
	imgObj.src=gs.NewRowImage;
	imgObj.border="0";
	imgObj.setAttribute("imgType","newRow");
	var cell=row.Element.cells[row.Band.firstActiveCell-1];
	cell.innerHTML="";
	cell.appendChild(imgObj);
	gs.newImg=imgObj;
},
"colButtonMouseOut",
function()
{
	igtbl_colButtonMouseOut(this.Id);
},
"sort",
function()
{
	if(igtbl_sortGrid)
		igtbl_sortGrid.apply(this);
},
"updateAddNewBox",
function()
{
	igtbl_updateAddNewBox(this.Id);
},
"update",
function()
{
	var p=igtbl_getElementById(this.Id);
	if(!p) return;
	if(this.oActiveCell)
	{
		this.removeChange("ActiveCell",this.oActiveCell);
		this.recordChange("ActiveCell",this.oActiveCell);
	}
	else if(this.oActiveRow)
	{
		this.removeChange("ActiveRow",this.oActiveRow);
		this.recordChange("ActiveRow",this.oActiveRow);
	}
	if(this.Element.parentNode.scrollLeft)
		ig_ClientState.setPropertyValue(this.ViewState,"ScrollLeft",this.Element.parentNode.scrollLeft.toString());
	if(this.Element.parentNode.scrollTop)
		ig_ClientState.setPropertyValue(this.ViewState,"ScrollTop",this.Element.parentNode.scrollTop.toString());
	p.value=ig_ClientState.getText(this.ViewState.parentNode);
},
"goToPage",
function(page)
{
	if(!this.AllowPaging || this.CurrentPage==page || page<1 || page>this.PageCount)
		return;
	igtbl_doPostBack(this.Id,"Page:"+page.toString());
},
"getRowByLevel",
function(level)
{
	if(typeof(level)=="string")
		level=level.split("_");
	var rows=this.Rows;
	for(var i=0;i<level.length-1;i++)
		rows=rows.getRow(level[i]).Rows;
	return rows.getRow(level[level.length-1]);
},
"xmlHttpRequest",
function(type)
{
	if(this.ReadyState!=0)
		return;
	this.ReqType=type;
	this.ReadyState=this.eReadyState.Loading;
	if(this.CallBack)
	{
		var arg=this.QueryString;
		eval(this.CallBack);
	}
	else
	{
		if(ig_csom.IsIE)
		{
			this.XmlHttp.open("POST", this.Url, false);
			this.XmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
			this.XmlHttp.onreadystatechange=new Function("igtbl_onReadyStateChange('"+this.Id+"')");
			this.XmlHttp.send("__EVENTTARGET="+this.UniqueID+"&__EVENTARGUMENT=XmlHttpRequest&"+this.UniqueID+"="+this.QueryString);
		}
		else
		{
			this.XmlHttp.open("POST",this.Url,false);
			this.XmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
			this.XmlHttp.igtbl_currentGrid=this.Id;
			this.XmlHttp.addEventListener("load",igtbl_onReadyStateChange,false);
			this.XmlHttp.send("__EVENTTARGET="+this.UniqueID+"&__EVENTARGUMENT=XmlHttpRequest&"+this.UniqueID+"="+this.QueryString);
		}
	}
},
"recordChange",
function(type,obj,value)
{
	new igtbl_StateChange(type,this,obj,value);
	if(typeof(this[type])!="undefined")
	{
		var id=obj.Element?obj.Element.id:obj.Id;
		if(typeof(value)!="undefined")
			this[type][id]=value;
		else
			this[type][id]=true;
	}
},
"removeChange",
function(type,obj)
{
	if(obj.Changes[type])
	{
		obj.Changes[type].remove();
		if(typeof(this[type])!="undefined")
		{
			var id=obj.Element?obj.Element.id:obj.Id;
			delete this[type][id];
		}
	}