C# - How To Raise List Controls SelectedIndexChanged Event In Codebehind
Feb 19, 2010How to raise the SelectedIndexChanged event of an asp.net List control in a codebehind using C#?
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[code]....
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<asp:DropDownList ID="ddlBlockName" onchange="return ShowAlertForScaleResolution();"
runat="server" Width="150px" AutoPostBack="True" OnSelectedIndexChanged="ddlBlockName_SelectedIndexChanged">
</asp:DropDownList>
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Code:
[Code]....
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[Code] ...
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protected void drpOrg_SelectedIndexChanged(object sender, EventArgs e){
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[Code] ....
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[code]....
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[Code]....
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View 2 RepliesData Controls :: Dropdownlist SelectedIndexChanged Getting Called On Button Click Event
Jan 7, 2013I have a dropdownlisbox  , i am changing the selectedIndex by PageMethod(i.e it will change its  value and text on checkbox status). At that time it don't fire the selectedIndexchange method but when i click the button it fires(i.e on postback).
<td width="65%" align="left">
<asp:UpdatePanel ID="upPCountry" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" Width="125px"
AutoPostBack="true" onselectedindexchanged="ddlCountry_SelectedIndexChanged" >
<asp:ListItem Value="1">USA</asp:ListItem>
<asp:ListItem Value="2">Canada</asp:ListItem>
[Code] .....
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Oct 22, 2013i read article "using javascript with asp.net radiobuttonlist control" and i found it useful.
[var RB1 = document.getElementById("<%=RadioButtonList1.ClientID%>");
var radio = RB1.getElementsByTagName("input");
if am setting radio[1].checked = 1; the item is checked. ]
step1: radio[0]=checked
      radio[1]=not checked
      radio[2]=not checked
step 2: by using javascript , am changing the selection
nowÂ
      radio[0]=not checked
      radio[1]=checkedÂ
     radio[2]=not checked
step 3: if am changing radio[0]=checked by clicking, it wont fire the selected index change that i wrote on code behind
but if am changing radio[2]=checked by clicking, it will fire the selected index change that i wrote on code behind
My requirement:Â i want to fire the selected index change in both cases. for that i need to change the selected index in step 2.