參考示例:匯總行
Javascript處理
通常在表格的"load"數據加載完成事件中,更新表格的匯總信息:
grid.on("load", onGridLoad);
function onGridLoad(e) {
var result = e.result;
var grid = e.sender;
var cellEl = grid.getSummaryCellEl("ageColumn");
cellEl.style.cssText = "text-align:right";
cellEl.innerHTML = "<span style='color:Brown;'>"
+ 'Min=' + result.minAge + "<br/>"
+ 'Max=' + result.maxAge + "<br/>"
+ 'Avg=' + result.avgAge + "<br/>"
+ "</span>";
var cellEl = grid.getSummaryCellEl("totalColumn");
cellEl.innerHTML = "總員工數:" + result.total;
}
服務端數據處理
在服務端返回表格分頁數據時,我們額外增加了一些屬性,比如minAge、maxAge、avgAge等,代碼如下:
public Hashtable SearchEmployees(string key, int index, int size, string sortField, string sortOrder)
{
ArrayList employees = ......; //分頁后的數據
int totalCount = ......; //總記錄數
Hashtable result = new Hashtable();
result["data"] = employees;
result["total"] = totalCount;
//生成一些匯總信息
ArrayList ages = DBUtil.Select("select min(age) as minAge, max(age) as maxAge, avg(age) as avgAge from t_employee");
Hashtable ageInfo = ages[0] as Hashtable;
result["minAge"] = ageInfo["minAge"];
result["maxAge"] = ageInfo["maxAge"];
result["avgAge"] = ageInfo["avgAge"];
return result;
}