下拉选择的chenaged没有开火 [英] Drop down Selected chenaged is not firing

问题描述

Hi

Hi

<asp:DropDownList ID="ddlManufaturemonth" runat="server" AutoPostBack="true" CssClass="select_box"

                                                               Width="80px"

                                                               onselectedindexchanged="ddlManufaturemonth_SelectedIndexChanged" onchange="javascript:return ValidateMonthandYear(this);">
                                                           </asp:DropDownList>

在这个只有一个事件正在解雇，我想要点火这里所选择的改变都没有解雇。可以任何人帮我





问候，

Rahul。

in this only one event is firing that is on change i want fire the both here selected change is not firing.Could any one help me


Regards,
Rahul.

推荐答案

onchange clientside事件禁用了服务器端事件。



您可以通过javascript函数进行回发，如下所示：

The onchange clientside event disables the serverside event.

You can do a postback from your javascript function as the follows:

<script language="Javascript">
__doPostBack('__Page', 'MyCustomArgument');
</script></script>

以下是解释：

如何从Javascript调用回发 [ ^ ]

...好的，试试下面的javascript告诉我你是如何上场的？

... OK, try the following javascript and let me know how you get on?

function ValidateMonthandYear() {
 debugger;
 var bReturn=true;
 var monthformat = { 'Jan': 01, 'Feb': 02, 'Mar': 03, 'Apr': 04, 'May': 05, 'Jun': 06, 'Jul': 07, 'Aug': 08, 'Sep': 09, 'Oct': 10, 'Nov': 11, 'Dec': 12 };

 document.getElementById('<%=lblDateofPurchaseValidation.ClientID%>').innerHTML = '';
 document.getElementById('<%=lblMonthandYearofManufacturingvalidation.ClientID%>').innerHTML = ''; 

 //this is the selected Date 
 var Manufyear = document.getElementById('<%=ddlManufatureyear.ClientID%>').value ;
 var Manufmonth = document.getElementById('<%=ddlManufaturemonth.ClientID%>').value;
 var ManufDay = document.getElementById('<%=ddlManufatureDay.ClientID%>').value;

 if (Manufyear != "0" && Manufmonth != "0" && ManufDay != "0") {
     var date = Manufyear - +Manufmonth - +ManufDay; 
 }
 else { 
     bReturn = false; 
 }

 return bReturn;
}

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