AJAX :: Call An "instance" Of Script From A Global Script
Sep 12, 2010
I have this pretty standard JavaScript:
[Code]....
Which is getting attached to a number of Label controls using the standard script descriptor syntax. The Javascript is behaving exactly as I would expect.
Now, I need to call the validate() function from elsewhere (I need to check all of the warnings that may be against any of the text boxes).
So, I have an array which contains all of the ClientId entries for the behaviours. I have tried this:
[Code]....
In that case, the $find returns Undefined.
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May 27, 2010
I am using PageMethods in my pages, and we have some requirement in which some maintenance process happened in certain time span, so in that time we set on DB flag consider as True False, I have written my code in Global.asax where in application_AcquireRequestState(...,...) Method I am checking the flag and depanding upon the flag I am redirecting my Page to one Maintenance dummy page, so application_AcquireRequestState() method working properly when page get postback or I am using thru any server control, but when I am using Asynchronous call using PageMethods in application_AcquireRequestState I am getting exception, Can anyone solve my problem I am using VB.NET.
[Code]....
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Dec 8, 2010
I'm trying to install a 301 redirect where the instruction is as follows:
"In my Global.asax file (You can add this to your site from Visual Web Developer or Visual Studio by selecting File->New), In the Application_BeginRequest event, I added a call to the following code:"
The code is at bottom if needed. When it says "added a call to the following code:" does that mean something more than just putting the code inside the Application_BeginRequest section of my global.asax? For example, here's what that section looks like in my site:
[Code]....
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Aug 18, 2010
I have a method in one class file with defination like this which gets the user id of logged person.
public string GetUserID(HttpRequest req)
{ .... }
I need to call this method in global.asax and save that value in session. I need to use this session value i need to use this Session value and assign that to label in Masterpage. I did not use global.asax before. And what should be the input to method... i have seen only Request is have the returntype HttpRequest. So i thought of giving that.
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Jan 24, 2011
Can I call Initialize Culture of every page from the Global.asax?
Every page looks at the query string of "?lang=##" and sets the language accordingly. Since all pages do this, is there a place where I can implement it once and all pages will load it?
My site has around 200 pages and I dont want to implement the code in everypage. Would take too long for maintenance and to implement. It would be more convinient if I could simply put it in a function that all pages call when loading.
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Mar 12, 2010
my objective is i want to log all those exceptions on my aspx pages which are handled or unhandled. To do this do i need to write my method in global.asax or how can i do that?
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Nov 3, 2010
My UI layer calls my business layer which populates a DTO. I need to display properties from the DTO on my ASPX page. Should I create public variables on the code behind page for each of the DTO properties and reference like <%=PublicPropertyName%> OR is it ok to set the DTO instance to public and reference the properties directly like <%=dtoInstance.propertyName%>
Additionally, would it be better if I just created Literal and Label controls for every item on the ASPX page and just populate them from the code behind only?
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Feb 8, 2011
I 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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Mar 27, 2011
i want to have a timer in my site that will work for all the site where have i to put this timer?i mean if i put it in one aspx it will work only for this page or not?
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Jan 29, 2011
I would like to have a global progress bar for all my user controls. I found this link,
http://www.kindblad.com/2008/04/26/create-a-global-progress-bar-for-your-aspnet-ajax-applications/
which works well, however, I would like to have a delay as well so that if the control loads within a second the progress bar does not show.
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Feb 6, 2010
vs asp2008 instance cant recognize the sqlExpress 2008 instance on my machine
I have wonder if you could try to help me with the fallowing issue:When trying to add a new sql server connection (local or remount) from VS(visual studio) 2008 express - on the add connection dialog
box: server name: are Empty!!
The vs couldn't point to any database, like dont recognize the sqlExpress 2008 instance i got on my machine.
1. Have tried to "play" with sa property's(from sqlS: Databases: security: login tree folder) and with the sql
s windows service: stop and restart
2. And so with the target db.
3.
On the services.msc
The sql server express the status is started.
The sql server agent status is disabled and don't have the option to start.
The sql server explorer status is disabled and don't have the option to start.
4. And so reinstalled the asp.
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Jul 18, 2010
I've been having an issue trying to write to an instance member of my page class when using the Ajax timer control.
I've built a very simple crude example below which emulates the exact problem I'm having...
The code below executes a method called "UpdateText" every second using the timer control. Every time the method is called it increments a counter variable by one to illustrate how many times the timer control has made a callback.
Of course, in order to read the value of the counter onto the web page the label sits inside an update panel with a trigger associated to the timer.
Markup:
[code]....
If you run this you'll find it works, great but I don't want the 'loopCounter' variable to be static as this would apply to the whole application level and all users would be reading/writing to the same variable.
When I try to remove the static keyword, the loopCounter variable is no longer updated, it just stays at zero... There are no errors given in the code or in the browser (JavaScript).
I've found a temporary work around by using sessions instead which work nicely and remain in the context of a user but I prefer not to use sessions unless I really have to.
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Feb 19, 2011
I m Creating a Website Student Management And During Student Registration Getting this Error' Object reference not set to an instance of an object.'I m using LINQ Please Gv its Solution ASAP.my Code is :
protected void Button1_Click(object sender, EventArgs e)
{
{
StudentDataContext db = new StudentDataContext();
int flag = db.prcInsertStudent((Guid)Membership.GetUser(txtFirstName.Text).ProviderUserKey,txtRegNo.Text.Trim().ToString(), txtFirstName.Text.Trim().ToString(),
[code]...
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Jan 20, 2010
Is there a quick way to get the instance by Dom element.
My way is:
Base.find = function(element)
{
var c = Sys.Application.getComponents();
for (var i = 0; i < c.length; i++)
{
var e = c[i].get_element();
if (e == element)
return c[i];
}
return null;
}
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Mar 26, 2010
I'm getting a very peculiar problem with my asp.net application, it took me an age to track down but I still don't know what is causing this behaviour.
If I set a session variable in the Application_PreRequestHandlerExecute event, then my external JavaScript files are ignored, and therfore causing a raft of errors. I have simplified the problem below.
E.g.
I have file called JScript.js containing the code:
function myAlert() {
alert("Hi World");
}
And in my Default.aspx file I reference the js with the code:
<script src="JScript.js" type="text/javascript"></script>
And in the body onload event I call the myAlert() function:
<body onload="myAlert()">
And finally in the Global.asax file:
Private Sub Application_PreRequestHandlerExecute(ByVal sender As Object, ByVal e As EventArgs)
HttpContext.Current.Session("myVar") = "MyValue"
End Sub
If you run the Default.aspx file you will see the js function isnt called, however, if you comment out the line of code Global.asax then the external js is called and the function executed when the page loads.
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Oct 7, 2010
One reason we currently use UpdatePanels for doing our AJAX is because our BL and DA layers pass around the Page.User.Identity for authentication.
Is there a way to access this?
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Sep 25, 2010
I am obviously confused by ScriptManager and ToolKit. Can you look at the code below?
[Code]....
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Jun 30, 2012
i use 2 file up load control in my page i used this code
<asp:ToolkitScriptManager ID="ToolKitScriptManager2" runat="server"></asp:ToolkitScriptManager>
<asp:UpdatePanel ID="Upbdt1" runat="server">
<ContentTemplate>
<asp:ModalPopupExtender DropShadow="true" ID="ModalPopupExtender1"
[code].....
I wrote these code twice in my page but when i run page this error occur..Only one instance of a ScriptManager can be added to the page. 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.InvalidOperationException: Only one instance of a ScriptManager can be added to the page.Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
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Nov 11, 2013
i have to use two different Ajaxfileupload controls in a page .But when i upload file through second control the second event doesnot get fired(UploadComplete) everytime first event is fired.
<asp:AjaxFileUpload ID="AjaxFileUpload1" runat="server"
OnClientUploadComplete="onClientUploadComplete"
MaximumNumberOfFiles="10"
AllowedFileTypes="jpg,jpeg" OnUploadComplete="AjaxFileUpload1_UploadComplete" />
[Code]....
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Dec 7, 2010
I am using the Ajax AutoCompleteExtender control, and employing a public shared function to act as a web service without actually creating a web service. This approach works perfectly, however I would like to take this one step further and filter my query from a drop down list, however I am unable to accomplish this. Whenever I attempt to reference the drop down list from within the public funtion, I get:
"cannot refer to an instance member of a class from within a shared method or shared member initializer without an explicit instance of the class."
I have found very limited documentation on resolving this error. Pretty much every solution includes removing the shared reference instead of handling it.
When I remove the Shared reference and just make it private, the AutoCompleteExtender ceases to function completely (i.e. functions a a regular textbox). Here is my code:
If you notice that I am not referencing the @YRQ parameter in my query, that is intentional. I will replace the subquery with that parameter when I am able to get this working.
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Mar 12, 2010
Is it required to use a RESTful service to be able to make a ajax call to a wcf service (for example: by using WebInvoke attribute on Operation contracts). Once a service is made RESTful by adding a webHttp binding on the service host, can the host have other endpoints as well? (wsHttp or netTcp). Is it required that the aspNetCompatibilityEnabled be set to true for a service that has webHttp binding (and can this setting coexist for other endpoints). I understand I can use both JQuery and ScriptManager for making WCF calls on the client. Why should I use one over the other?
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Feb 2, 2011
I'm sorting a gridview inside an update panel. When the user clicks on the column header, the gridview resorts itself fine. However, after the sort, I' like to run a javascript function called MyScript.
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Dec 29, 2010
Ajax call on dropdownList
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Mar 28, 2011
I regularly run into the following error in my .NET 4.0 web application:
[Code]....
I found that the issue was already reported here: [URL], but there is no solution provided anywhere (at least, I didn't find it).
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Feb 8, 2011
I am getting a Invalid Control message balloon pop up.Looks like calloutextender is working but the message displayed is not the one expected... "Invalid Control" .. am I missing something?
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