本文介绍了如何在javascript中运行命令脚本的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 29岁程序员,3月因学历无情被辞! hi 我想为所有网格行运行IsValidHesNo方法。但它在循环中运行最后'i'。 plz帮助我 hanks很多 var rows = document .getElementById( <%= grdSnd.ClientID%>)。rows; for ( var i = 1 ; i< rows.length; i ++){ hesCode = rows [i] .cells [ 0 ]。getElementsByTagName( input)[ 0 ]。value + rows [i ] .cells [ 1 ]。getElementsByTagName( input )[ 0 ]。value + rows [i] .cells [ 2 ]。getElementsByTagName ( input)[ 0 ] .value IsValidHesNo(hesCode, function (res){ alert(res); }); } function IsValidHesNo(hesCode,callBack){ $ .ajax({ type: post, contentType: application / json; charset = utf-8, data: {'hesCode':' + hesCode + '}, url: insertSanad.aspx / IsValidHesNo, dataType: json,成功: function (响应){ callBack(response.d); },错误: function (){ callBack( ); } }); } 解决方案 .ajax({ type: post, contentType: application / json; charset = utf-8, data: {' hesCode':' + hesCode + '}, url : insertSanad.aspx / IsValidHesNo, dataType: json,成功: function (响应){ callBack(response.d); },错误: function (){ callBack( ); } }); } 这是因为ajax调用是异步的。 你的可变的hesCode是一个全局变量。所以hescode将是window.hesCode的引用。你应该使用一个闭包。 如果你把包含循环的第一部分放在一个匿名函数中并声明hesCode前面有一个var它应该可以工作。 / BLOCKQUOTE> hiI want run IsValidHesNo method for all of rows of grid. but it is run for last 'i' in loop.plz help mehanks alotvar rows = document.getElementById("<%= grdSnd.ClientID %>").rows;for (var i = 1; i < rows.length; i++) {hesCode = rows[i].cells[0].getElementsByTagName("input")[0].value + rows[i].cells[1].getElementsByTagName("input")[0].value + rows[i].cells[2].getElementsByTagName("input")[0].value IsValidHesNo(hesCode, function (res) {alert(res);});}function IsValidHesNo(hesCode, callBack) { $.ajax({ type: "post", contentType: "application/json; charset=utf-8", data: "{'hesCode':'" + hesCode + "'}", url: "insertSanad.aspx/IsValidHesNo", dataType: "json", success: function (response) { callBack(response.d); }, Error: function () { callBack(""); } }); } 解决方案 .ajax({ type: "post", contentType: "application/json; charset=utf-8", data: "{'hesCode':'" + hesCode + "'}", url: "insertSanad.aspx/IsValidHesNo", dataType: "json", success: function (response) { callBack(response.d); }, Error: function () { callBack(""); } }); }This caused because the ajax call is asynchronous.And your varable hesCode is a global variable. So hescode will be a reference to the window.hesCode. You should use a closure.If you put the first part containing the loop in an anonymous function and declare hesCode with a var in front of it it should work. 这篇关于如何在javascript中运行命令脚本的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 上岸,阿里云! 06-12 08:17