AJAX :: To Change SliderExtender Value From Server Without Postback?
Oct 21, 2010
Right now, the SliderExtender value (when dragged around) will cause a normal postback on TextChanged.
My situation is, the server side code would also like to dynamically change this slider value. When it does this, it changes the sliderextender value by javascript. However, teh problem is, when this happens, another postback occurs raising the OnTextChanged
event when a postback occurs.So how can I change the sliderextender value from the server side withotu raising a postback?
I've tried to set autopostback=false, then set teh value, then setting it back to true but this wasn't workign in javascript.
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Dec 3, 2010
I'm using SliderExtender in content of a Master Page.
It has a JavaScript function that is called in both $(document).ready and Sys.WebForms.PageRequestManager.getInstance() .add_endRequest() .
When I initial the page, the function is not active, it says " $find('BehaviorID') " is null, while other JavaScript function (without behaviourID) works smoothly.
But when I do a postback on the page. The slider function turns to available.
It seems the page didn't generate properly, miss a slider tag with class = "...BehaviorID..."
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Oct 7, 2010
I need a Slider that will only postback when the slider has been moved. Can this be achieved with SliderExtender?
I have a TextBox with autopostback=true, within an updatepanel within a usercontrol. The TextBox is extended by SliderExtender (default settings).
The TextBox's TextChanged event fires perfectly when the slider is moved (MouseUp - standard extender setting). The aspx page is partially posted back, and all is well.
However, if another usercontrol on the same aspx page causes a partial postback, the SliderExtender causes the TextChanged event to be raised - for no aparent reason. This is causing problems.
Is it possible to prevent postback unless the slider has actually been moved?!
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Apr 22, 2010
I have a sliderextender inside a listview and there is a button that save the sliderextender values inside the listview. My problem is when i am trying to get the value of each slider i do not get the value set. My boundcontrol that i declare on the sliderextender changes but when i try to get its value its "" but there is a value displayed.
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Feb 11, 2010
I've tried variations on CSS and layout (such as tables) but haven't been able to solve this problem. I've been able to recreate this with my simple example below on both Firefox 3.6 and IE7. When I load this page, the textbox blinks in for a second and when the slider appears the textbox will disappear. In the case of this example, the slider appears in the place where the textbox tried to load. In other examples I've created the textbox and slider load in different places but the textbox still disappears when the slider appears.
[Code]....
I realize this is an extremely simple example but I'm trying to narrow down the possible places for things to go wrong.
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Mar 3, 2010
have a sliderExtender Control over textbox like this
<cc1:SliderExtender
ID="SliderExtender1"
BoundControlID="TextBox1"
TargetControlID="TextBox2"
runat="server"
Maximum="10000"
Steps="500"
Length="200">
</cc1:SliderExtender>
However, when I drag the slider the incremental is not 500. How to ensure it increase by 500 each small drag movement ?
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Dec 10, 2010
On my page I have the code:
[Code]....
and to set the value in the code behind my Page_Load has
[Code]....
If leave the slider alone or change the value Label1 always says 110. I want it to say the slider value + 10.
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Jan 30, 2011
So I want to build a page with 3 sliders that are linked and limited to 100 total. So if the user slides the 1st slider to 100 then the other 2 wont move. Or they could do 50 / 25 / 25 etc etc...
So I need to limit each slider maximum based on (100 - the other 2 selected values) and I'd like to do it without a postback.
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Oct 18, 2010
I am trying to develop two step size buttons + and - so that when you click either one, the AJAX SliderExtender will magically move itself by one. I have tried implementing the following functions:
document.getElementById ("Slider1_BoundControl").value = 5;
document.getElementById ("Slider1").value =5;
here's what happens, I see that the BoundControl textbox works and it gets updated to 5. However, the slider still does not update to its new position. When the slider moves, a postback will occur. The Slider1 is the textbox that is the targetID to SliderExtender1 . The boundcontrolID is Slider1_BoundControl (textbox)
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Nov 30, 2010
I'm using a Ajax SliderExtender in a UpdatePanel. I set a BehaviorID and call $find('behavorID').add_valueChanged function in the $document.Ready. Everything is fine but when I press F5 and refresh the page, I lose the slider in a 1/3 (wtf) chance. If I set var slider = $find('behavorID'), it recognises slider is null.
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Oct 18, 2010
I am using a bunch of SliderExtenders to morph the ASP Textbox into a Slider control. This has worked great. However, I noticed that 1/20 times, occasionally, the sliderextender fails to morph the textbox. So the textbox actually appears during initial page_load. However, you can still drag the slider around because it is also rendered beneath the textbox.
A subsequent page refresh fixes this problem until some other time.
Second thing, this also frequently comes out more when switching between a javascript tab and an updatepanel.
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Sep 6, 2010
i want to do postback and do some logical things in code behing whenever user click's Tab other than in which he is presently working.Is this possible? How?
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Jan 4, 2010
I am building a website in which all of the site layout is in Master page and the content of the site is in the inherited pages. I have various links for navigation in which i simple use Response.Redirect to transfer to different pages. Now the problem is that I want to put the content place holder inside Ajax Update panel so that the postbacks are Asynchronous and I want to show the postback by an animated image inside Update Panel progress control. The problem is that I am unable to achieve this result and the entire page is posted back and rendered again. I have placed the content place holder inside the Ajax control toolkit's Update panel but it does not work. Is there any way that I can change the content of the content place holder to a new page with asynchronous postback.
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Oct 7, 2010
Is it possible to set a "not set" value for the SliderExtender? For example, I have a SliderExtender defined to take an integer value from 1 to 5. However, until someone sets it, I want the SliderExtender to return a "not set" value, and for the handle/rail to signify that it has not been set (e.g. handle/rail in a different colour). I have tried using the value "0", NULL, Empty, dbNull. In each case I either receive an error (invalid value) or the SliderExtender "cleverly" sets itself to the minmimum value of "1" I have tried the following...
When the usercontrol is initially loaded I set the rail to red colour using RailCSSClass, and set the TextBox to "0" - which is not a legitimate value because the extender expects an integer between 1 and 5. The result, upon initial loading of the usercontrol is that the rail is red in colour (indicating to the user that they need to set it) and the handle appears in position 1. All is reasonably well at this point. HOWEVER, if anything on the web page causes a postback, the SliderControl's TextBox sets itself (as expected, I suppose) to "1", and the TextChanged event fired - making it look as if someone has now selected a value. So.... can the SliderExtender/TextBox be made to "accept" a "not set", value by some other clever means - and to remember that "not set" value between postbacks?
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Mar 7, 2012
as per my flow on every click i have a postback without which i cannot store data to client or server.i have 2 ways of data storing one is client side in javascript variables in form of array(which can be lost on postback) the data to be stored are of differnt types some are numeric , some single characters some sepearted with comma other way is on each post back save the data in a session varibale on server & then access currently i have second way considering both the ways and in accrodance with the current flow which is best for maintenance & access speed reasking as i am notyet cleared abt the things.
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Jan 15, 2011
I'm having a bit of trouble cancelling an asynch postback. I have an update panel with an update progress which contains a cancel button so that the user can cancel the postback. When the user clicks a button to generate a report the update progress is shown. The report can take a bit of time as it has to loop through a thousand or so times creating an excel spreadsheet. If the user decides to cancel running the report for any reason then they can click the cancel button which I then call abortPostBack() in javascript which stops the update progress and the page is shown again. However, the user can't do anything else like navigate to another page as the server is still processing the loop. How would I stop the loop on the server processing when the user has clicked the cancel button?
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Jan 24, 2010
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Mar 27, 2011
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Aug 17, 2010
So, here's the scenario: I have a page in my asp.net c# based website, which displays data dynamically after taking the request from query strings.For example:
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if(ScriptManager1.IsInAsyncPostBack)
{
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The result of this is that when I click a new image button, the image that is displayed is that of the previous network, i.e. the cache is always one postback late.
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Apr 20, 2010
I have an asp.net page with couple of div elements on my page. Some of them are floating left and some are separated with <br /> elements.When I put a button which just post-backs and click that, I see that some divs (which were floated to left before) are repositioned to a new line
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Oct 28, 2010
Is there anyway to define the screen position after a postback?
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Problem is that with each post back the page refreshes at the top and i have to scroll back down to my question. I can use the .focus() control, that's fine, but it doesn't work as perfectly as i'd like. Is there any way of defining how many lines or pixels the screen is already scrolled to upon postback?
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May 9, 2012
I have 1Dropdownlist 1 button and 1 datalist in my page i bind my datalist in Page_load event that show all my product from my DB ... Users can select their city from DDL click on button and in datalist just show product that are on selected city ...
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I want when users change ddl.selecteditem in datalist show last result of user's selected not the result that i define in page load ... This is my code on page load ...
protected void Page_Load(object sender, EventArgs e) {
if (!IsPostBack) {
DDLcity1.Items.Add(new ListItem("select your city", ""));
BindDropDownList(DDLcity1, "Guidcity", "cityname", "ID");
}
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Jan 21, 2011
I have two text boxes and one label control. All three controls are in different "td". Now what i want to do is , i am subtacting a value of textbox2 from the value of textbox1 and storing an answer in label control. I have written a code of subtracting values in the text changed event of textbox 2 and i am also getting an answer in label control. But when text changed event fires, it takes some time to execute which i reall dont like. this is why i want to use update panel to reduce that time. how can i use update panel in this kind of situation. i tried but not successded. so please write some code here related to my controls.
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