Ive came into a problem when using partial page update. The javascript doesn't fellow. What i want to do is when i call a partial page update some of the update have controls that require a javascript code to be executed. When the partial update is done that javascript isnt here and cannot be found. So what is the best way to make a javascript file to fellow a partial page update ?
View 1 RepliesI have a control declared with PartialCaching attribute, like this:
[PartialCaching(60 * 60 * 12)]
public class MyControl : Control {
// control contents ...
}
but I create it in code, using new keyword. The problem is that if the control is in cache I must not create the control again the next time, but I need to add the control to the page hierarchy, otherwise nothing is going to be rendered. What I need in pseudo-code is something like this:
if (myControlIsCached) {
var ctl = ???; // something that represents the cached control
// e.g. could be: new LiteralControl( myControlCachedData ) [code].....
So I have two UpdatePanels. I am dynamically creating server-side buttons in UpdatePanel2. When the buttons come out, they are not hooked to the asynchronoustriggers of updatePanel1.
So how can I dynamically add these triggers of these newly dynamically created buttons so that clicking these buttons will only cause a partial postback to UpdatePanel1 ? Right now, when I click these buttons, it causes a partial-postback refresh to UpdatePanel2 (the panel itself that which the controls reside in)
I have a grid view in Ajax UpdatePanel. In a column of a grid view I have a button call btnAddNewRecord. I need to fire btnAddNewRecord.Click event once I click on that.
How can I do this?
I'm trying to place a user control inside an UpdatePanel.
When the control is displayed, typing inside the TextBoxes has a large delay while in IE (6 & 8). FireFow has an excellent performance. Not only typing, but also scrolling etc experience a large delay up to a few secons.
The usercontrol(s) contain quite a lot of javascript functions that are re-registered using the ScriptManager.RegisterScriptBlock or RegisterStartupScript functions.
why typing becomes so very slow? I believe it has to do something with memory leaking due to the re-registering of the jQuery functions. But I'm unable to find the source of it.
A simple poll system that loads questions and possible answers.
I load questions, so that each one is generated as a DIV element and placed inside a DIV element already present in HTML markup.
Next, for each question I load answers, generate them as LinkButtons and add them to the corresponding DIV controls collection.
This all works as expected, the questions and answers are all nicely generated.
Now, all the dynamically created controls are placed in a DIV element that is inside an Update Panel.
HTML MARKUP:
HTML Code:
<asp:UpdatePanel ID ="infoUpdate" runat ="server" >
<ContentTemplate >
<div id ="info" runat ="server" >
<asp:Label ID ="infoLabel" runat ="server" ></asp:Label>
[Code] ....
The problem is, that I can't seem to register the dynamically created controls with the UpdatePanel, so when I click a LinkButton it doesn't do a Full PostBack.
Below is the sub I use to generate the controls:
vb.net Code:
Private Sub createPoll() Try
connection = New SqlConnection(connectionString)
connection.Open() ''Get the currently active poll ID
Dim sqlQuery As String = "SELECT pollID FROM polls WHERE pollStatusID = 1"
Dim myCommand As New SqlCommand(sqlQuery, connection)
[Code] ....
As you can see, I tried adding a handler to each control and then adding the control to the UpdatePanel ContentTemplateContainer, but the clickEvent never gets fired.
I also tried adding triggers for each controls, but it made no difference.
I am quite sure this has to do something with the Page LifeCycle, but I just can't see it.
Is is possible to initiate a partial page update whenever a client makes an update (say inserrting a record) and this will update the panel of all clients who are actually viewing the page ie eliminate the use of a timer control to refresh the panel each second because am getting many problems when using timercontrol.
View 2 RepliesAssume you have a page in ASP.NET where it makes sense to use JavaScript/jQuery to modify the DOM with values that will eventually be read by the server on submit. For example, you have a form that allows end users to add/remove objects (like dependents on a health insurance form or assets on a loan application). What are some ways to ensure that these items are detected and retrieved by the server once the information is submitted?
I've tried a few things that work, but none of them seem perfect so I wanted to see what the community had to offer. Also, I'm not looking for suggestions that avoid dynamic DOM elements (like use a Wizard, etc.). I'm specifically trying to improve my technique with dynamically created DOM elements.
in an aspx pege, on Page PostBack we generally get thsoe control that were created either in aspx or code behind (dynamic controls ). But in jQuery its common practice to craete new set of controls on the fly. Supose i have created 10 spans with some id and text . So, can we get these spans on server side on Page PostBack ?
View 5 RepliesI have some code that I am working on that uses an UpdatePanel and some dynamically created buttons to perform functions. The problem is that the dynamically created buttons aren't working the same as my test static button, which is behaving exactly as it should be.
So I was wondering if someone would be willing to simply post an example (in VB.NET or C# please) of the following:
An UpdatePanel has a Label and a Placeholder inside of it
The Placeholder has a dynamic button added to it
Clicking on this button will make the Label say "Hi" without performing a full page postback.
If I can just get that much to work, I am sure that the rest of the code will be fine. I just can't seem to get my dynamic buttons to act like my static ones do in an UpdatePanel.
I have multiple update panels in a page. how I can know which update panel caused partial page updation on client side before page is partially updated?
View 3 RepliesI created dynamically a table with 3 rows not by using table tag. I need to find these rows in scripting, in button click, if any of these rows is empty then need to generate an alert message like enter current row.
View 1 RepliesOn runtime I am creating table structure using javascript and appending it to the div which is placed in an update panel. Problem here is, when I use asp.net button control, onClick of the button it posts the page to server and whatever javascript tables I have created it goes off. When I use html input button (input type="button") I don't face this problem and tables also stay there. But I have to use asp.net button to take necessary actions on the server side. Is there any way that I can restore the structure or use asp.net button control alongwith dynamic javascript.
View 1 RepliesI've a JavaScript function in my page through which i make some elements in the page as 'JQuery UI droppable'.
function setDroppableTargets()
{
$(.cssDockZone).droppable();
}
But the elements with the class cssDockZone is created dynamically upon user interaction. So in the code behind i create the control first and finally at the end i register a scriptblock which calls setDroppableTargets().
//set droppable targets ClientScript.RegisterClientScriptBlock(this.GetType(), "setDroppableTargets", "setDroppableTargets()", true);
But the javascript function is invoked before the controls are created eventhough i register the script at the end (after creating the controls) and i cross checked it by getting the elements with class name '.cssDockZone' and i getting it as 0.
$(.cssDockZone).length
I am dynamically creating controls from javascript. Now i want to access this is server side.
I assigned all the control values from dynamically created controls to hidden field and accessed that in server side. For this i need to create many hidden fields as much as dynamically added controls.
Once again i am faced with an issue. I must allow a user to add as many pieces of data as they wish. I have therefore employed some javascript from an tutorial
[URL]
I would now like to return the data from the dynamic fields through the c#(.cs page)
I've tried creating checkboxes, literalcontrols and textboxes. I need to generate checkboxes dynamically, depending on how many types of <whatever> the user has put in. I know how to do this (I think), but the problem is the controls don't work as they should.
If I create server controls, then for some reason I can't change the value with javascript. If I create client controls, then something appears to happen with the id so the server can't fetch the value (it doesn't recognize the id, allthough it's there in the html)
I can't use a regular checkbox with autopostback because there is to much happening at page load. On other pages on the site, this works, but on those pages the controls are not created dynamically.
I have a small form with some static elements that I am able to access with javascript the bring up a popup. 4 textboxes are generated and attached to a updatepanel. I've been trying various methods of validating the contols without generating postback.
I found anytime i registered a javascript to the scriptmanager the page must refresh.
Is there anyway it can be done?
Let's say I have some HTML and Javascript which adds text fields dynamically to a form:
[code]...
What might the ASP.NET code for capturing the data from these dynamically created text boxes look like?
i have to create some files dynamically. those are referred in html anchor control.i want to process some requested files in asp.net worker process but IIS just intercept all these requests and show 404 page not found page. how can i avoid IIS bevaiour in such cases additionally i can not map these files extentions to IIS because i don't know there are so many???
View 1 RepliesI have a table thats created dynamically, the table gets its contents from a custom class I've created that gets statistical data from a database. As the table is generated dynamically, I've put the contents class (the table data) into a session object and I populate the table initially inside a !IsPostback then on the page init I get the data from the session (its empty on the firts page load). I am now getting this error: Multiple controls with the same ID 'controlnamehere' were found. FindControl requires that controls have unique IDs. How can I avoid this?
View 4 RepliesI have a menu. I use the menu's menuitemclick event to create a gridview (several actually) that is then added to a panel for display.The gridview paints perfectly until I try to add paging.I have successfully used paging and sorting declaratively for years, but this is my first attempt to do everything in code.When the gridview tries to databind, it throws an error:
[NullReferenceException: Object reference not set to an instance of an object.]
System.Web.UI.WebControls.GridView.get_StateFormatter() +25
System.Web.UI.WebControls.GridView.BuildCallbackArgument(Int32 pageIndex) +56
[code]...
how to use 4 dynamically created timers on a single page for incrementing 4 different variables(int).
View 3 RepliesI have an unbound gridview which is bound to a dynamically created datatable during the pageload event of my page. A simple matrix with x columns and y rows. I need all the cells to be the same size. I'll display my code below.
[Code]...
I have a page with a (gridview nested within a gridview) in an UpdatePanel (UpdateMode="Conditional"). The nested gridview drops down when you click on an arrow and then you can click on each subgrid rows command field. The gridviews are loaded from the Page_Load event. When I click on the commandfield in the subgrid the Page_Load fires during the partial page postback. From what I have read this is normal with UpdatePanels. But What I don't understand is why both Page.IsPostBack and ScriptManager.GetCurrent(Page).IsInAsyncPostBack test false after I click on the command field in my grid. I need to stop the rebinding of the gridviews ( which causes the subgrid to collapse ) when the command field is clicked.Also: I am using MasterPages and the <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> is located in my mater page form section.Would anyone have any suggestions how to test if a partial page postback is occuringHere is a link to the page source: http://pastebin.org/153774here is a link to the code behind: http://pastebin.org/153781
View 2 Replies