How To Access Javascript Global Variable From Codebehind
Jul 15, 2010get the value of Global variable in javascript example var a="priti"so want to access "a" in code behind as it's global varible
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Retain Intellisense For Javascript Global Variable In Visual Studio 2008?
Mar 29, 2011I have a JavaScript wrapper that I initialize on body load and set to a global variable.
Just after creating the object, I have full intellisense, but when referring to it later, from another function, the intellisense is lost. I presume this is because of dynamic typing:
var myWrapper;
function onload() {
myWrapper = new Wrapper(args);
myWrapper. //intellisense here.
}
function whatever() {
myWrapper. //intellisense lost.
}
I get round this by pretending to create the object again before my code, and then deleting the line:
function whatever() {
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Has the inference been improved in vs 2010, or is there any way to tell Javascript about the type of object I'm currently working on?
C# - Dictionary Lookup Efficiency & Request Scoped Global Variable Accessible By Global.asax And Pages/etc?
Feb 8, 2011I know there is a couple answered questions on here regarding "request scoped" globals, but I want to nit-pick on something specifically and maybe squeeze some extra enlightenment out of one or two of you.I have an ASP.NET C# Website and a static Dictionary of objects (loaded from DB once on Application start). Each page request will need to do a lookup in the Dictionary (based on a key derived from the request url/etc) and get the appropriate object.The issue is I'm trying to maximize efficiency by reducing the lookups to the Dictionary per Request. Doing just a single lookup within a Page itself is easy enough and I can pass the object to sub controls, etc too.. but global.asax is separate from the Page and it also needs to use the object (in Application_BeginRequest and Session_Start).
So is doing a Dictionary lookup once in Application_BeginRequest, once (when necessary) in Session_Start and once in the Page negligible speed wise, even if there are many requests coming in every second?I would like it if I could just have a Request scoped global variable that I can easily call upon.. the only one I see available though is HttpContext.Current.Items and that is a Dictionary itself.Am I beingridiculously nit-picky with my concern over efficiency? or will these milliseconds (nanoseconds?) get me in the long run when more and more requests are being made?
PS. I currently only have around 100 objects in the Dictionary although this may increase in the future.
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My code is:
//Global
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When executing this code I get the error message sw is undefined.
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before i used viewstate but the viewstate data is render to page every postback ..so this time the page size is increasing(interanlly viewstate is rendered to page)..so performence wise it was very slow..
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EDIT: here's some code snippets of what I'm trying to do:
Site.master.cs
public partial class SiteMaster : System.Web.UI.MasterPage
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logout.aspx
<%@ Page Title="" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeFile="logout.aspx.cs" Inherits="logout" %>
<%@ MasterType virtualPath="~/Site.master"%>
logout.aspx.cs
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
User user = Master.user;
}
}
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1. after Login.aspx get the information of the user
2. redirect to home.aspx
3. in home.aspx, view the info like Label1.text ="Welcome " + varUser;
4. Label1 is located in the master page
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May 15, 2010I would like know how to declare a global variable that can be used within a user after the user login and before the user logout across all the possible pages.
I need to develop a web application that will connect to 5 different servers depends on the selection of user on what server they wish to connect and after they select a server and login...I will need to keep track the server name in a variable last until the user logout (user may visit various pages but the server name MUST NOT be changed due to other user login into different server). So how can I do it so that other users may select different servers and will keep the server name for each different users.
Let says:-
User A selects Server A and login and User B selects Server B and login at the same time, so how the global variable can handle the needs for each user (User A & B) with different server select?
Is "Session" the only way to fulfill the above? I think of using Application State but it seems that the value stored will be shared by all users and not for a particular user.
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Public UserName As String
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
UserName = Page.User.Identity.Name
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Then, I need to use the UserName to search the SQL DB and show only logged user personal information.
SelectCommand="SELECT * FROM [Member] where [UserID]= UserName"
What is the sintaxe to use a global variable into the SQL Select Command?
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