ig_webgrid.js

研究怎样通过手写代码来完成自动生成代码

			else
				cell.beginEdit();
		}
	}
	else
	{
		if(se.cellIndex<column.Band.firstActiveCell)
			return;
		if(igtbl_fireEvent(gn,gs.Events.DblClick,"(\""+gn+"\",\""+se.id+"\")")==true)
			return;
		if(gs.NeedPostBack)
			igtbl_doPostBack(gn,'HeaderDblClick:'+se.id);
	}
}

function igtbl_selectRegion(gn,se)
{
	var gs=igtbl_getGridById(gn);
	if(!gs)
		return;
	var rowContainer;
	if(!se)
		return;
	if(se.getAttribute("groupRow"))
		rowContainer=se.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode;
	else
		rowContainer=se.parentNode.parentNode;
	var te=gs.Element;
	var selTableId = te.getAttribute("selectTable");
	var workTableId;
	if(se.getAttribute("groupRow"))
		workTableId=se.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.parentNode.id;
	else
		workTableId=se.parentNode.parentNode.parentNode.id;
	if(workTableId=="")
		return;
	var bandNo=igtbl_getElementById(workTableId).getAttribute("bandNo");
	if(selTableId==workTableId)
	{
		var selMethod = te.getAttribute("selectMethod");
		if(selMethod=="row" && (se.cellIndex==igtbl_getBandFAC(gn,se)-1 || igtbl_getCellClickAction(gn,bandNo)==2 && se.cellIndex>igtbl_getBandFAC(gn,se)-1 || se.getAttribute("groupRow")))
		{
			var selRow=igtbl_getRowById(te.getAttribute("startPointRow"));
			var rowId;
			if(se.getAttribute("groupRow"))
				rowId=se.parentNode.parentNode.parentNode.parentNode.parentNode.id;
			else
				rowId=se.parentNode.id;
			var curRow=igtbl_getRowById(rowId);
			if(selRow && igtbl_getSelectTypeRow(gn,bandNo)==3 && igtbl_getCellClickAction(gn,bandNo)>0)
			{
				gs.selectRowRegion(selRow,curRow);
				igtbl_setActiveRow(gn,curRow.getFirstRow());
			}
			else
			{
				if(!(curRow.getSelected() && igtbl_getLength(gs.SelectedRows)==1))
				{
					igtbl_clearSelectionAll(gn);
					if(se.getAttribute("groupRow"))
						rowId=igtbl_getWorkRow(se.parentNode).id;
					if(igtbl_getSelectTypeRow(gn,bandNo)>1 && igtbl_getCellClickAction(gn,bandNo)>0)
						igtbl_selectRow(gn,curRow);
				}
				igtbl_setActiveRow(gn,igtbl_getFirstRow(igtbl_getElementById(rowId)));
			}
		}
		else if(selMethod=="cell" && (se.cellIndex>igtbl_getBandFAC(gn,se)-1))
		{
			var selCell=igtbl_getCellById(te.getAttribute("startPointCell"));
			var curCell=igtbl_getCellById(se.id);
			if(igtbl_getSelectTypeCell(gn,bandNo)==3 && igtbl_getCellClickAction(gn,bandNo)>0 && selCell)
			{
				gs.selectCellRegion(selCell,curCell);
				curCell.activate();
			}
			else
			{
				if(!(curCell.getSelected() && igtbl_getLength(gs.SelectedRows)==1))
				{
					igtbl_clearSelectionAll(gn);
					if(igtbl_getSelectTypeCell(gn,bandNo)>1 && igtbl_getCellClickAction(gn,bandNo)>0)
						igtbl_selectCell(gn,curCell);
				}
				igtbl_setActiveCell(gn,se);
			}
		}
	}
}

function igtbl_setSelectedRowImg(gn,row,hide)
{
	var gs=igtbl_getGridById(gn);
	if(!gs) return;
	if(row)
		igtbl_getRowById(row.id).setSelectedRowImg(hide);
}

function igtbl_setNewRowImg(gn,row)
{
	var gs=igtbl_getGridById(gn);
	if(!gs) return;
	gs.setNewRowImg(row?igtbl_getRowById(row.id):null);
}

function igtbl_clearSelectionAll(gn)
{
	var gs=igtbl_getGridById(gn);
	if(igtbl_fireEvent(gn,gs.Events.BeforeSelectChange,"(\""+gn+"\",\"\")")==true)
		return;
	var row,column,cell;
	gs.noCellChange=false;
	for(var row in gs.SelectedRows)
		igtbl_selectRow(gn,row,false,false);
	for(var column in gs.SelectedColumns)
		igtbl_selectColumn(gn,column,false,false);
	for(var row in gs.SelectedCellsRows)
	{
		for(var cell in gs.SelectedCellsRows[row])
			delete gs.SelectedCellsRows[row][cell];
		delete gs.SelectedCellsRows[row];
	}
	for(var cell in gs.SelectedCells)
		igtbl_selectCell(gn,cell,false,false);
}

function igtbl_selectCell(gn,cellID,selFlag,fireEvent)
{
	var cell=cellID;
	if(typeof(cell)=="string")
		cell=igtbl_getCellById(cellID);
	else
		cellID=cell.Element.id;
	if(!cell)
		return;
	cell.select(selFlag,fireEvent);
}

function igtbl_selectRow(gn,rowID,selFlag,fireEvent)
{
	var rowObj=rowID;
	if(typeof(rowObj)=="string")
		rowObj=igtbl_getRowById(rowID);
	else
		rowID=rowObj.Element.id;
	if(!rowObj)
		return false;
	return rowObj.select(selFlag,fireEvent);
}

function igtbl_selColRI(gn,column,bandNo,colNo)
{
	for(var i=1;i<column.parentNode.parentNode.parentNode.rows.length;i++)
	{
		var row=column.parentNode.parentNode.parentNode.rows[i];
		if(!row.getAttribute("hiddenRow") && row.parentNode.tagName!="TFOOT")
			igtbl_changeStyle(gn,igtbl_getElemVis(row.cells,column.cellIndex),igtbl_getSelCellClass(gn,bandNo,colNo));
	}
	igtbl_changeStyle(gn,column,igtbl_getSelHeadClass(gn,bandNo,colNo));
}

function igtbl_selectColumn(gn,columnID,selFlag,fireEvent)
{
	var column=igtbl_getElementById(columnID);
	var bandNo=column.parentNode.parentNode.parentNode.getAttribute("bandNo");
	if(igtbl_getSelectTypeColumn(gn,bandNo)<2)
		return;
	var colNo=igtbl_colNoFromColId(columnID);
	var gs=igtbl_getGridById(gn);
	if(gs.exitEditCancel || gs.noCellChange)
		return;
	if(fireEvent!=false)
		if(igtbl_fireEvent(gn,gs.Events.BeforeSelectChange,"(\""+gn+"\",\""+columnID+"\")")==true)
			return;
	if(selFlag!=false)
	{
		var cols=igtbl_getDocumentElement(columnID);
		if(cols.length)
			for(var j=0;j<cols.length;j++)
				igtbl_selColRI(gn,cols[j],bandNo,colNo);
		else
			igtbl_selColRI(gn,column,bandNo,colNo);
		gs.recordChange("SelectedColumns",gs.Bands[bandNo].Columns[colNo]);
		igtbl_getColumnById(columnID).Selected=true;
		gs.Element.setAttribute("lastSelectedColumn",columnID);
	}
	else
	{
		var cols=igtbl_getDocumentElement(columnID);
		if(cols.length)
			for(var j=0;j<cols.length;j++)
			{
				igtbl_changeStyle(gn,cols[j],null);
				for(var i=1;i<cols[j].parentNode.parentNode.parentNode.rows.length;i++)
				{
					var row=cols[j].parentNode.parentNode.parentNode.rows[i];
					var cell=igtbl_getElemVis(row.cells,column.cellIndex);
					if(!row.getAttribute("hiddenRow") && !gs.SelectedRows[row.id] && !gs.SelectedCells[cell.id])
						igtbl_changeStyle(gn,cell,null);
				}
			}
		else
		{
			igtbl_changeStyle(gn,column,null);
			for(var i=1;i<column.parentNode.parentNode.parentNode.rows.length;i++)
			{
				var row=column.parentNode.parentNode.parentNode.rows[i];
				var cell=igtbl_getElemVis(row.cells,column.cellIndex);
				if(!row.getAttribute("hiddenRow") && !gs.SelectedRows[row.id] && !gs.SelectedCells[cell.id])
					igtbl_changeStyle(gn,cell,null);
			}
		}
		gs.removeChange("SelectedColumns",gs.Bands[bandNo].Columns[colNo]);
		igtbl_getColumnById(columnID).Selected=false;
	}
	if(fireEvent!=false)
	{
		igtbl_fireEvent(gn,gs.Events.AfterSelectChange,"(\""+gn+"\",\""+columnID+"\");");
		if(gs.NeedPostBack)
			igtbl_moveBackPostField(gn,"SelectedColumns");
	}
}

//Expands/collapses row in internal row structure
function igtbl_stateExpandRow(gn,row,expandFlag)
{
	var gs=igtbl_getGridById(gn);
	if(!gs)
		return;
	if(expandFlag)
	{
		gs.recordChange("ExpandedRows",row,row);
		if(gs.CollapsedRows[row.Element.id])
			gs.removeChange("CollapsedRows",row);
	}
	else
	{
		gs.recordChange("CollapsedRows",row,row);
		gs.removeChange("ExpandedRows",row);
	}
}

function igtbl_arrayHasElements(array)
{
	if(!array)
		return false;
	for(element in array)
		if(array[element]!=null)
			return true;
	return false;
}

function igtbl_getLeftPos(e,cc,oe)
{
	return igtbl_getAbsolutePos("Left",e,cc,oe);
}

function igtbl_getTopPos(e,cc,oe) 
{
	return igtbl_getAbsolutePos("Top",e,cc,oe);
}

function igtbl_getAbsolutePos(where,e,cc,oe)
{
	var offs="offset"+where,cl="client"+where,bw="border"+where+"Width",sl="scroll"+where;
    var crd=e[offs];
    if(e[cl] && cc!=false)
		crd+=e[cl];
	if(typeof(oe)=="undefined")
		oe=null;
    var tmpE=e.offsetParent, cSb=true;
    while(tmpE!=null && tmpE!=oe)
    {
		crd+=tmpE[offs];
		if((tmpE.tagName=="DIV" || tmpE.tagName=="TD") && tmpE.style[bw])
		{
			var bwv=parseInt(tmpE.style[bw],10);
			if(!isNaN(bwv))
				crd+=bwv;
		}
		if(cSb && typeof(tmpE[sl])!="undefined")
		{
			var op=tmpE.offsetParent,t=tmpE;
			while(t && t!=op && t.tagName!="BODY")
			{
				if(t[sl])
					crd-=t[sl];
				t=t.parentNode;
			}
			if(tmpE.tagName=="DIV")
				cSb=false;
		}
		if(tmpE[cl] && cc!=false)
			crd+=tmpE[cl];
        tmpE=tmpE.offsetParent;
    }
	if(tmpE && tmpE[cl] && cc!=false)
		crd+=tmpE[cl];
    return crd;
}

function igtbl_getRelativePos(gn,e,where)
{
	var g=igtbl_getGridById(gn);
	var mainGrid=igtbl_getElementById(gn+"_main");
	var passedMainGrid=false;
	var offs="offset"+where,bw="border"+where+"Width";
	var ovfl="overflow",ovflC=ovfl+(where=="Left"?"X":"Y");
	var crd=e[offs];
	var parent=e.offsetParent;
	while((parent!=null && parent.tagName!="BODY" && (parent.style.position!="relative" || (parent.style.position=="relative" && parent.id=="G_"+gn))))
	{
		passedMainGrid=passedMainGrid||igtbl_isAChildOfB(mainGrid,parent);
		if(passedMainGrid && (parent.style.position=="absolute" || parent.style[ovflC] && parent.style[ovflC]!="visible" || parent.style[ovfl] && parent.style[ovfl]!="visible"))
			break;
		crd+=parent[offs];
		if(ig_csom.IsIE && (parent.tagName=="DIV" || parent.tagName=="TD" || parent.tagName=="FIELDSET") && parent.style[bw])
		{
			var bwv=parseInt(parent.style[bw],10);
			if(!isNaN(bwv))
				crd+=bwv;
		}
		if(parent==mainGrid)
			passedMainGrid=true;
		parent=parent.offsetParent;
	}
	return crd-g.Element.offsetParent["scroll"+where];
}
function igtbl_isAChildOfB(a,b){
	if(a==null||b==null)return false;
	while(a!=null){
		a=a.parentNode;
		if(a==b)return true;
	}
	return false;
}
function igtbl_moveBackPostField(gn,param)
{
	var gs=igtbl_getGridById(gn);
	gs.moveBackPostField=param;
}

function igtbl_updatePostField(gn,param)
{
}

function igtbl_isVisible(elem)
{
	while(elem && elem.tagName!="BODY")
	{
		if(elem.style && elem.style.display=="none")
			return false;
		elem=elem.parentNode;
	}
	return true;
}

var igtbl_dontHandleChkBoxChange=false;

function igtbl_chkBoxChange(evnt,gn)
{
	if(igtbl_dontHandleChkBoxChange||evnt.propertyName=="disabled")
		return false;
	var se=igtbl_srcElement(evnt);
	var c=se.parentNode;
	while(c && !(c.tagName=="TD" && c.id!=""))
		c=c.parentNode;
	if(!c) return;
	var s=se;
	var cell=igtbl_getCellById(c.id);
	if(!cell) return;
	var column=cell.Column;
	var gs=igtbl_getGridById(gn);
	var oldValue=!s.checked;
	if(gs.exitEditCancel || !cell.isEditable() || igtbl_fireEvent(gn,gs.Events.BeforeCellUpdate,"(\""+gn+"\",\""+c.id+"\",\""+s.checked+"\")"))
	{
		igtbl_dontHandleChkBoxChange=true;
		s.checked=oldValue;
		igtbl_dontHandleChkBoxChange=false;
		return true;
	}
	cell.Row._dataChanged|=2;
	if(typeof(cell._oldValue)=="undefined")
		cell._oldValue=oldValue;
	igtbl_saveChangedCell(gs,cell,s.checked.toString());
	if(!c.getAttribute("oldValue"))
		c.setAttribute("oldValue",s.checked);
	c.setAttribute("chkBoxState",s.checked.toString());
	var cca=igtbl_getCellClickAction(gn,column.Band.Index);
	if(cca==1 || cca==3)
		igtbl_setActiveCell(gn,c);
	else if(cca==2)
		igtbl_setActiveRow(gn,c.parentNode);
		
	if(cell.Node)
	{
		cell.Node.selectSingleNode("Value").text=!s.checked?"False":"True";
		gs.invokeXmlHttpRequest(gs.eReqType.UpdateCell,cell,s.checked);
	}		
	igtbl_fireEvent(gn,gs.Events.AfterCellUpdate,"(\""+gn+"\",\""+c.id+"\",\""+s.checked+"\")");
	if(gs.LoadOnDemand==3)
		gs.NeedPostBack=false;
	if(gs.NeedPostBack)
		igtbl_doPostBack(gn);
	return false;
}

function igtbl_colButtonClick(evnt,gn)
{
	var se=null;
	var b=igtbl_getElementById(gn+"_bt");
	if(b)
		se=igtbl_getElementById(b.getAttribute("srcElement"));
	if(typeof(se)=="undefined" || !se)
	{
		se=igtbl_srcElement(evnt).parentNode;
		if(se && se.tagName=="NOBR")
			se=se.parentNode;
	}
	var gs=igtbl_getGridById(gn);
	if(gs.exitEditCancel || typeof(se)=="undefined" || !se || se.id=="")
		return;
	igtbl_fireEvent(gn,gs.Events.ClickCellButton,"(\""+gn+"\",\""+se.id+"\")");
	if(gs.NeedPostBack)		
		igtbl_doPostBack(gn,'CellButtonClick:'+se.id+"\x05"+igtbl_getCellById(se.id).getLevel(true));
		
}

function igtbl_colButtonMouseOut(gn)
{
	var b=igtbl_getElementById(gn+"_bt");
	if(!b)
		return;
	if(b.getAttribute("noOnBlur"))
		return;
	if(b.style.display=="")
	{
		b.setAttribute("noOnBlur",true);
		b.style.display="none";
		b.removeAttribute("srcElement");
		var gs=igtbl_getGridById(gn);
		if(!gs.Activation.AllowActivation)
			return;
		if(gs.oActiveCell)
		{
			if(!gs.oActiveCell.Row.GroupByRow && gs.oActiveCell.Column.ColumnType==7 && gs.oActiveCell.Column.CellButtonDisplay==0)
				igtbl_showColButton(gn,gs.oActiveCell.Element);
		}
		window.setTimeout("igt