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void ShowMessage() { }
void HideMessage() { }
void LoadData()
{
try
{
//加载数据
}
finally { HideMessage(); }
}
ShowMessage();
new Thread(new ThreadStart(LoadData)).Start();
invokeFunctionLoad invokeLoadDataSub = new invokeFunctionLoad(ExcelReader.getInstance().readExceFile);
AsyncCallback callback = new AsyncCallback(loadDataSubCompleted);
invokeLoadDataSub.BeginInvoke(result.formPath, "sheet1", HdrType.NO, callback, result);
private void loadDataSubCompleted(IAsyncResult ar)
{
AsyncResult ac = ar as AsyncResult;
invokeFunctionLoad invokeLoadDataSub = ac.AsyncDelegate as invokeFunctionLoad;
try
{
readResult = invokeLoadDataSub.EndInvoke(ar);
}
catch (Exception ex)
{
onsetmessageBox(ex.Message);
}
}
function ShowDoing() {
var loaddiv;
if (loaddiv = document.getElementById("loaddiv")) {
loaddiv.style.display = "block";
} else {
loaddiv = document.createElement("DIV");
loaddiv.id = "loaddiv";
loaddiv.style.position = "absolute";
loaddiv.style.zIndex = 1000;
loaddiv.style.display = "";
loaddiv.style.left = 0;
loaddiv.style.top = 0;
loaddiv.style.border = "1px solid gray"
loaddiv.style.background = "#ffffff"
loaddiv.style.padding = "5";
}
var scrollTop = 0;
if (top.document.documentElement && top.document.documentElement.scrollTop) {
scrollTop = top.document.documentElement.scrollTop;
} else if (document.body) {
scrollTop = top.document.body.scrollTop;
}
var scrollWid = document.body.scrollWidth / 2 - 150;
loaddiv.style.left = scrollWid + "px";
loaddiv.style.top = (scrollTop + 50) + "px";
loaddiv.innerHTML = "<img src='/images/Doing.gif'><h>执行中,请稍等……</h>";
document.body.style.cursor = "wait";
var sWidth, sHeight;
sWidth = document.body.scrollWidth; //浏览器工作区域内页面宽度 或使用 screen.width//屏幕的宽度
sHeight = document.body.scrollHeight; //屏幕高度(垂直分辨率)
//背景层(大小与窗口有效区域相同,即当弹出对话框时,背景显示为放射状透明灰色)
var bgObj = document.createElement("div"); //创建一个div对象(背景层) //动态创建元素,这里创建的是 div
//定义div属性,即相当于(相当于,但确不是,必须对对象属性进行定义
//<div id="bgDiv" style="position:absolute; top:0; background-color:#777; filter:progid:DXImagesTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75);
//opacity:0.6; left:0; width:918px; height:768px; z-index:10000;"></div>
bgObj.setAttribute('id', 'bgDiv');
bgObj.style.position = "absolute";
bgObj.style.top = "0";
bgObj.style.background = "#ffffff";
bgObj.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
bgObj.style.opacity = "0.6";
bgObj.style.left = "0";
bgObj.style.width = sWidth + "px";
bgObj.style.height = sHeight + "px";
bgObj.style.zIndex = "10000";
document.body.appendChild(bgObj); //在body内添加该div对象
document.body.appendChild(loaddiv);
}