Posted in Javascript onFebruary 27, 2015
根据用户需求,在输入金额时要格式化,即每三位数字加逗号分隔,并保留两位小数。
考虑到用户的体验,随使用JS对金额进行格式化,前台代码如下:
<asp:TextBox ID="txtAmount" runat="server" onkeypress="check()" onkeyup="run(this)"></asp:TextBox>
JS代码如下:
//======检查输入的是否为数字 function check() { if (!((window.event.keyCode >= 48 && window.event.keyCode <= 57) || window.event.keyCode == 46 || window.event.keyCode == 45)) { window.event.keyCode = 0 } } //======格式化文本框的金额 function run(obj) { var objvalue = obj.value.replace(/[,]/g, ""), objlength = objvalue.length, dtmp = objvalue.indexOf("."), neg = objvalue.indexOf("-"); var inttmp = 0, floattmp = -1; if (dtmp != -1) { inttmp = dtmp == 0 ? "0" : new String(objvalue).substring(0, dtmp); floattmp = new String(objvalue).substring(dtmp + 1, objlength + 1); floattmp = floattmp.replace(/[^0-9]/g, ""); } else { inttmp = objvalue; } if (neg == 0) { inttmp = inttmp.replace(/[-]/g, ""); } inttmp = inttmp.replace(/[^0-9]/g, ""); var tmp = "", str = "0000"; for (; inttmp.length > 3; ) { var temp = new String(inttmp / 1000); if (temp.indexOf(".") == -1) { tmp = ",000" + tmp; inttmp = temp; } else { var le = new String(temp).split(".")[1].length; tmp = "," + new String(temp).split(".")[1] + str.substring(0, 3 - le) + tmp; inttmp = new String(temp).split(".")[0]; } } inttmp = inttmp + tmp; obj.value = neg == 0 ? "-" + inttmp + runing(floattmp) : inttmp + runing(floattmp); } //======整理小数部分 function runing(val) { if (val != "-1" && val != "") { var valvalue = 0 + "." + val; if (val.length >= 2) { valvalue = parseFloat(valvalue).toFixed(2); } var temp = "." + valvalue.split(".")[1]; return temp; } else if (val != "0" && val == "") { return "."; } else { return ""; } }
同时因为金额可输入负数,所以加上“neg = objvalue.indexOf("-")”的判断。
关于金额的格式化问题,经常遇到这种事情,觉得这个还可以,也就留着,以供以后查阅方便!
asp.net+js实现金额格式化
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hebedich声明:登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述。
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