Pass Array from C# to javascript

[jennifercheng2008]

I have a string array SchoolName[100] in .net aspx.cs file. Now I want to pass this array to javascript code. But I can't use following code:

var addresses=new Array();
for (var i=0; i <99; i++)
{
addresses= "<%=SchoolName %>";
}

If i is not defined in aspx.cs file, the error will show i is not defined there.
But if i is defined in aspx.cs file, any addresses will be assigned to the value of SchoolName[0].

I can assign values as following:

addresses[0]= "<%=SchoolName[0] %>";
addresses[1]= "<%=SchoolName[1] %>";
.
.
.
addresses[99]= "<%=SchoolName[99] %>";

But it is not good since SchoolName size should always change.

I would be appreciated if you may give me some advice.

Jennifer

 

[jemminger]

how about

addresses[<%= i %>]= "<%= SchoolName %>";


-jeff

http://www.jeffemminger.com

lost: one sig, last seen here.

 

[jennifercheng2008]

I tried. But same thing happened. Anyway, thanks, jeff.

Jennifer

 

[jemminger]

from your original post, it doesn't look like you're looping over the SchoolName collection on the server side. is this true? the server side code is executed before any client side code.

you'd need to perform a loop on the server side and write out the javascript array, e.g. (note this is not necessarily syntactically correct C#, i'm not a C# guy)

var addresses = new Array();
<%
for (int x = 0; x < SchoolName.length; x++) {
System.out.write("addresses["+x+"]= '"+SchoolName[x]+"';");
}
%>




-jeff

http://www.jeffemminger.com

lost: one sig, last seen here.

 

[jmeckley]

you need use ClientScriptManager.RegisterArrayDeclaration.

Jason Meckley
Programmer
Specialty Bakers, Inc.