as we do in desktop app, can we use global variables in a web app. it must be client side.
i hv created a class to handle global variables, but the issue is with it. if other user login on another pc at d same time, the variable got re-initialized. i want they must be client/ user specific.
How do you declare global variables in ASP.NET MVC?
View 6 RepliesI'm using ListView + DataPager + ObjectDataSource mix.
In the implementation of my SelectMethod of an ObjectDataSource I'd like to access a global variable set in the PageLoad() event (the method will return just the proper number of items per page). Although the variable is initialized in PageLoad() it appears to be null in SelectMethod. How can I change that?
[Code]....
with a problem im having or at least give me an idea about which direction i should be going in.I have an asax file - with the following void Session_Start(object sender, EventArgs e)in that I am storing a session which holds a boolean.This boolean holds a flag which when set to true tells the application to go to the database and retrieve data, if its set to false, it checks the information in memory.I am using master pages and inside my master page i have and ascx files - which holds my navigation items(I build the navigation menu based on certain criteria)on a content page (a page that uses the master page) I perform a function when a button is clicked and I set the session flag to truethe problem is that the flag is not being checked until i refresh the page twice and therefore the menu is not updating until the user clicks to another page.my suspicion is that it is because of the page life cycle (the event handlers are done AFTER page load) - is there anyway around this?Is there any web page links you have got that I cant google? (yes i have googled but to little luck - maybe im using the wrong search term).on an additional note im trying to avoid like the plague - storing anything in the viewstate
View 9 Repliesit's possible to declear global variable in asp.net C#.
View 1 Repliesi declared a static variable in global.asax file like below
<%@ Application Language="C#" %>
<script runat="server">
static string Sv;
void Application_Start(object sender, EventArgs e)
{
// Code that runs on application startup
}
i want to access this variable in aspx page. how can i access this variable.
I am working with Google maps api V3. I need to get the values of the getSouthWest & getNorthEast bounds of my map. To do this the 'bounds_changed' event needs to be fired in order to get the new values. This is all good, however, I need to access these values from outside the event and passed to a server side function (more specifically, I don't want to call my server side function every time the map bounds are changed).
My code is:
//Global
var sw, nw, Searchbounds;
function myFunc(){
google.maps.event.addListener(map, 'bounds_changed', function() {
Searchbounds = map.getBounds();
sw = Searchbounds.getSouthWest();
ne = Searchbounds.getNorthEast();
});
CallServerSideWebService(sw.lat(), ne.lng(), ne.lat(), ne.lng());
}
When executing this code I get the error message sw is undefined.
I am developing one Intranet Que type project for a small Travel agency. I need one logic to route the customer que over all sales agent so anyone once free he will be buzzup to pickup the customer till here is Okay. But i need some timeout if no sales agent pickup the Que it will forward to the supervisor. Now here is my Question should i make a small desktop application and run in server to moinitor the time and forward the task.... or Is Web Service is suitable for this? (Forward means just it will update one field of table so it will start displaying in Supervisor screen.)
View 1 RepliesI have a custom class that pulls user information from a SQL Server table. Now that I'm expanding the site from a single page to others. I want to shift the code to the Session_Start event so that the information is always loaded when the site is accessed. How do I call my custom code from global.asax since its script and not a class.
View 5 RepliesFor some reason it seems as though variables that I declare in javascript sometimes persist themselves across applications even when I do a response.redirect. I thought that a response.redirect would clear them out.
View 1 Repliesshow the desktop(share desktop) to other person on asp.net or in 3rd free party control.
View 7 RepliesI am having some trouble with my web service. I want to make a variable that will be the same for each thread running. To be specific, my program is that user 1 goes on my page and types something into the textbox and that user 2 can see what user 1 is typing into the box. its sorta like google wave. The problem is that when i run it, the variable's value does not go to user 2 and instead another instance of that variable is created.
View 18 RepliesI am trying to figure out if Global Themes will be something our department could use. However, I am a little unclear on it. Can you basically just have one theme? Either a theme from the Global directory or one from the application theme folder? Or is there a way to use both at the same time?
View 7 RepliesI have a situation where my session variables seem to get corrupted. I Page_Load I am calling 2 subs. Each of them fills a GridView with data from a table. I am saving the content of each Data.DataTable into Session Variables:
Get_Summary_Last_Completed_Shift()
code in sub:
mySqlDataAdapter.Fill(mySqlDataTable)
Session("mySqlDataTable1") = mySqlDataTable
GridView1.DataSource = mySqlDataTable
GridView1.DataBind()
Code:
Get_Petroleum_Disbursement()
code in sub:
mySqlDataAdapter.Fill(mySqlDataTable)
Session("mySqlDataTable5") = mySqlDataTable
GridView5.DataSource = mySqlDataTable
GridView5.DataBind()
After I call the 1st sub and I debug the session variable "mySqlDataTable1" contains all the data from the table. After I call the 2nd sub and I debug the session variable "mySqlDataTable1" has been changed and contains a mix of data from the 2 tables.
I would like to put a value in web.config file in my project and read it programatically from .aspx page.Under which section of web.config file should I save the value. This is not a connectionstring. It is path of a file. And I how can programmatically read the value in the code?I am using C#.
View 3 RepliesI have a Sql string something like this.string sqlstring = "Select field1, field2 from table1 where field1 = 1 and field2 = 'xxx' group by field1, field2 order by field1 asc" Question: During runtime, based on the user selection, I have to replace 1 and xxx in the sql string.What is the best way to do this?
View 3 RepliesUsually using Visual Studio's debugger is a breeze. Scanning through Locals quickly shows the values of variables, etc. However, I'm at a loss how to find out the values contained in session state variables? Can anyone give me a hand?Lets say I put a breakpoint right after:
Session("first_name") = "Rob Roy"
How do I view the value contained in Session("first_name") from locals?
I 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() {
myWrapper = new Wrapper(); //pretend to create object again.
myWrapper. //intellisense returns!
}
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?
I have a simple gridview control. It has edit and cancel buttons for each row. User's can click on edit column and edit a row and click on save to save the record.
When the user clicks on save we get the error: ORA-01008: not all variables bound
User is allowed to edit only 3 fields and rest of the fields are only readonly. For those editable three fields, I am using EditItemTemplate. ASP.net doesn't throw any errors for the first two edititemtemplates. The problem comes only with the third field which is "BSIS Type". I tried to figure out almost 5 hours and don't know what to do.
This the code I have:
HTML Code:
<asp:GridView ID="GridViewActualsMapping" runat="server"
HeaderStyle-BackColor="#444444"
HeaderStyle-ForeColor="White"
Font-Size="10pt" Cellpadding="4"
AutoGenerateColumns="False"
[code]....
Error is:
HTML Code:
ORA-01008: not all variables bound
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.OracleClient.OracleException: ORA-01008: not all variables bound
How can we debbug a multi-thread program to see local variables of each thread using visual studio 2008.
View 1 RepliesI 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.
i am trying to collect 2 variables from one hyperlink, and use those variables in the page_load to set as session. but i don't know how to collect those 2 variables
such :
<a href="javascript:;" onclick="wsChangeColor('mainData', '#FF0000','#FFE4E1');return false;" title="Change color" id="red">1</a>
i would like to collect '#FF0000','#FFE4E1' or direct set '#FF0000','#FFE4E1' to string then send to pageload, how can i do this by only clicking on it ?
I have this code in javascript: var x = e.mapX; It gets the X-coordinate of a map. What I want to do is that I want to store this into a c# variable. I have a class named Test with an integer property X. I want to store var x into X. In the codebehind, I have this on the Page_Load: Test test = new Test(); Then I am trying this on the javascript code: var x = e.mapX;
View 16 Replieswhats the exact use of static variables in overall programming in .net and for asp.net...
Recently i went for the interview where interviewer asked me 2 question which i was not sure for the same..
whats the use of session object, i said sessions are the server side object, they are used when you want to store user specific data at server side, then he asked what if i want to use static variables for the same, i was mum, can anyone tell me how asp.net will behave if i store the user specific information in static variables.If i use cookies which are the best option to store the data at client side (not sensitive one), but what if user has disabled cookies on his machine, will my application would crash.
I just added System.Web reference to a dll assembly, the assembly is for windows applications and for web applications. IF the assembly will be deployed on a server, System.Web will be shared using GAC, and there is no overhead. But what about windows clients. I am wondering if there are extra resources or any kind of problems when System.Web is loaded into memory?
View 1 Replies
