Calling Javascript functions in an asp.net page

[timothy]

Pulling my hair out on this one. I want to run a simple js function when a user selects an item from a drop down (I'm sure this is an ASP.NET issue).

This is my Javascript function:

function SetupUserType(UserType){
    if(UserType=='Customer'){
        lstNPCs.Enable=false;
        lstRoles.Enable=true;
    }else{
        lstNPCs.Enable=true;
        lstRoles.Enable=false;
    }
}

My call to the (js) file that contains the function

<script language="javascript" src="Local.js"></script>

My drop down listbox that contains the event:

<asp:dropdownlist OnSelectedIndexChanged="SetupUserType(this)" id="ddlUserType" runat="server">
<asp:ListItem Value="Customer" Selected="True">Customer</asp:ListItem>
<asp:ListItem Value="Employee">Employee</asp:ListItem>
</asp:dropdownlist>

This is the error (right at compile):

Compilation Error 
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. 

Compiler Error Message: CS0117: 'ASP.Administrator_aspx' does not contain a definition for 'SetupUserType'

Source Error:
Line 30:
<asp:dropdownlist OnSelectedIndexChanged="SetupUserType(this)" id="ddlUserType" runat="server">
Line 31: <asp:ListItem Value="Customer" Selected="True">Customer</asp:ListItem>
Line 32: <asp:ListItem Value="Employee">Employee</asp:ListItem>

Any ideas? Let me know thanks.

 

[jen89]

Maybe "javascript:SetupUserType(this)" ?

 

[LV]

Add the js event handler in the code behind:

in the Page_Load:
if(ddlUserType.Attributes["onchange"] == null)
{
  ddlUserType.Attributes.Add("onchange", "javascript:SetupUserType(this)");
}

page html (remove the OnSelectedIndexChanged):

<asp:dropdownlist id="ddlUserType" runat="server">

This should do it.

 

[timothy]

That's exactly what I was looking for. Thanks