数量*单价=金额

最新推荐文章于 2019-11-14 20:02:36 发布

转载最新推荐文章于 2019-11-14 20:02:36 发布 · 1.8k 阅读

文章标签：

#textbox #asp #javascript #server #integer #function

ASP.NET 专栏收录该内容

14 篇文章

订阅专栏

　　〖思归〗

＜asp:TemplateColumn HeaderText="数量"＞
＜ItemTemplate＞
＜asp:TextBox id="ShuLiang" runat=’server’ Text=’＜%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%＞’
onkeyup="javascript:DoCal()"
/＞

＜asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^/d+$" /＞
＜/ItemTemplate＞
＜/asp:TemplateColumn＞

＜asp:TemplateColumn HeaderText="单价"＞
＜ItemTemplate＞
＜asp:TextBox id="DanJian" runat=’server’ Text=’＜%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%＞’
onkeyup="javascript:DoCal()"
/＞

＜asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^/d+(/./d*)?$" /＞

＜/ItemTemplate＞
＜/asp:TemplateColumn＞

＜asp:TemplateColumn HeaderText="金额"＞
＜ItemTemplate＞
＜asp:TextBox id="JinE" runat=’server’ Text=’＜%# DataBinder.Eval(Container.DataItem,"DG_JinE")%＞’ /＞
＜/ItemTemplate＞
＜/asp:TemplateColumn＞＜script language="javascript"＞
function DoCal()
{
　var e = event.srcElement;
　var row = e.parentNode.parentNode;
　var txts = row.all.tags("INPUT");
　if (!txts.length || txts.length ＜ 3)
　　return;

　var q = txts[txts.length-3].value;
　var p = txts[txts.length-2].value;

　if (isNaN(q) || isNaN(p))
　　return;

　q = parseInt(q);
　p = parseFloat(p);

　txts[txts.length-1].value = (q * p).toFixed(2);
}
＜/script＞