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Ext.onReady(function(){
Ext.override(Ext.grid.GridView,{
// private
//这个方法就是读取数据,根据template生成的grid各行数据
doRender : function(cs, rs, ds, startRow, colCount, stripe){
var ts = this.templates, ct = ts.cell, rt = ts.row, last = colCount-1;
var tstyle = 'width:'+this.getTotalWidth()+';';
// buffers
var buf = [], cb, c, p = {}, rp = {tstyle: tstyle}, r;
for(var j = 0, len = rs.length; j < len; j++){
r = rs[j]; cb = [];
var rowIndex = (j+startRow);
for(var i = 0; i < colCount; i++){
c = cs[i];
p.id = c.id;
p.css = i == 0 ? 'x-grid3-cell-first ' : (i == last ? 'x-grid3-cell-last ' : '');
p.attr = p.cellAttr = "";
p.value = c.renderer(r.data[c.name], p, r, rowIndex, i, ds);
p.style = c.style;
if(p.value == undefined || p.value === "") p.value = " ";
if(r.dirty && typeof r.modified[c.name] !== 'undefined'){
p.css += ' x-grid3-dirty-cell';
}
cb[cb.length] = ct.apply(p);
}
var alt = [];
if(stripe && ((rowIndex+1) % 2 == 0)){
alt[0] = "x-grid3-row-alt";
}
if(r.dirty){
alt[1] = " x-grid3-dirty-row";
}
rp.cols = colCount;
if(this.getRowClass){
alt[2] = this.getRowClass(r, rowIndex, rp, ds);
}
rp.alt = alt.join(" ");
rp.cells = cb.join("");
buf[buf.length] = rt.apply(rp);
}
//...............
buf[buf.length] = "<div>这里是统计行</div>";//这里加一行,可以读取json数据生成这一行.
//...............
return buf.join("");
}
})
})
function getSelValueInDataGrid(chk_name,dataGridID,dataGridNum,chkIndex)//chk名称与要获取选择项的值列号
{
{//构造
if(!chkIndex)
chkIndex=0;
}
var values="";
var trs=$(dataGridID).getElementsByTagName('tr');
for(var dg_i=1;dg_i<trs.length;dg_i++)//从1开始,排除头部行
{
if(trs[dg_i].getElementsByTagName('td')[chkIndex].getElementsByTagName('input')[0].checked)
{
values+="'" + trs[dg_i].getElementsByTagName('td')[dataGridNum].innerText + "',";
}
}
if(values!="")
{
values = values.substring(0,values.length-1);
}
return values;
}
//第一个参数是全选框ID,第二个似乎GridView的ID,最后一个是要统计的列所在的位置1表示第二列
var ciNums = getSelValueInDataGrid('chkAll_grid_stat','grid_stat',1);
//该行的第N个单元格(N表示我们要统计的列)
td = $(this).find("td").eq(3);
//累加访问人数
sumAmount += Number(td.text()); //是不是因为td.text()是类似以下的一串html串,造成统计出错?
/*
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="TextBoxTotal" runat="server" Text='123'> </asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
*/