JS obtains the value of the value of DropdownList and the example code of the Text value

Related JS:

Copy code code as follows:

<script type = "text/javascript" language = "javascript">

Function Searchchange ()

{{

var ddl = document.GetelementByid ("DropdownList1")

var index = ddl.selectEx;

var value = ddl.options [index]. Value;

var text = ddl.options [index] .text;

alert (value);

}

</script>

Call:

Copy code code as follows:

<ASP: DropdownList ID = "DropdownList1" Runat = "Server" onChange = "SearchChange ();">

<asp: listitem value = "0"> 111 </asp: listitem>

<asp: listitem value = "1"> 222 </asp: listitem>

<asp: listitem value = "2"> 333 </asp: listitem>

</asp: DropdownList