Asp.net - Properly Changing Ajax MultiHandle Slider Parameters On Postbacks
Jun 17, 2010
In VS2010 I have VB.NET codebehind aspx pages and I'm using Ajax multihandleslider extensions to filter search results on numerical values.
Fistly, the multihandle sliders don't display in the designer... I have to remove the slider targets tag:
In order to make it display in the designer... this isn't so much a big issue but an annoyance.
I am displaying items in a given category. So I get the max and min prices for all items in that category and assign the sliderextension max/min values appropriately.
This works fine until... I change the item category and go get a new max/min value for the slider control. I set the max/min values, then I set the target textbox values each to the corresponding max/min values.
The slider handles don't repaint (or init?) properly Like say for example my initial min/max is 1/100 if I do a full postback and change the max value to 1000 then the slider bar (correctly) stays the same size but the handle appears WAYYYY to the right off the page and I have to scroll to it. When I click it, it shoots back onto the slider bar.
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Jan 12, 2012
I have an asp.net page within which I've used several AJAX controls doing partial postbacks with update panels. In testing it works wonderfully, all of the postbacks are done without reloading the page and it makes the whole process smooth. I uploaded this to the web server for some outside testing and all of the tested reported that the page was reloading a lot. I tried it within the network from the web server and it was still working fine. However, when I tried it from outside the network at home, it does in fact appear to be doing full postbacks whenever it's set to do partial postbacks for these update panels.
I can't seem to find out why this is happening. Even with the increased time it takes to communicate with the server, it shouldn't reload the page - it should just, at most, stall for a moment. Another strange thing is that it's not maintaining the scroll position even though I have it set to do so for the one or two full postbacks I have. It reloads to the top of the page.
I'm thinking perhaps this may be something set on the server, but I can't be sure.
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Nov 23, 2011
I tried to implement Trackbar1 with Windows Media Player. The volume stays at the same sound level no matter how much I move the slider. Here is the code.
[Code]...
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Mar 6, 2012
I'm trying to send some Ids via route values with my data in my ajax call and I'm having issues passing more than one.
This is what I'm having to do now... Then split it out into an array on the server.[code]...
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Jul 28, 2010
var paramStr = $('#id1').val() + '|' + $('#id2').val() + '|' + $('#id3').val();
paramStr = '{"searchCriteria": "' + paramStr + '"}';
$.ajax({
[code].....
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Sep 14, 2010
I'm trying to edit the CommandText for the Insert Command in a TableAdapter in the Designer in vb.net. Whenever I make changes to the CommandText, Visual Studio (2008) automagically changes the Parameters to a Collection consisting of one Parameter thatexisted before editing the Command, immersed in a sea of complete garbage Parameters, and then I either have to undo (unless this was the first thing I tried editing, in which case I have to close the Designer to discard changes and reopen it) or manuallychange ALL the Parameters back to something that isn't complete garbage.
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Sep 13, 2010
I'm trying to edit the CommandText for the Insert Command in a TableAdapter in the Designer in vb.net. Whenever I make changes to the CommandText, Visual Studio (2008) automagically changes the Parameters to a Collection consisting of one Parameter that existed before editing the Command, immersed in a sea of complete garbage Parameters, and then I either have to undo (unless this was the first thing I tried editing, in which case I have to close the Designer to discard changes and reopen it) or manually change ALL the Parameters back to something that isn't complete garbage.
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Feb 3, 2011
Our solution is built on ASP.NET v1.1 framework. User is presented with login form, so upon providing credentials this information is posted back to the server. Upon postback SessionID changes and our application crashes as some information which is required for processing is stored in the cache and is identified by SessionID string as a part of the name.
This SessionID change happens absolutely randomly and only to some of the clients. Most of the time browser used to view the page and post info is IE8. I cannot reproduce this issue in our test environment, as SessionID is persistent though-out the whole testing process.
I've already checked all solutions, i.e.
Session cache is used on Page_Load to retrieve/store some information, so it's initialized and contains data stored. I've made a Health Monitoring check on Application_End event to capture any possible AppDomain crashes using Reflection and Diagnostics Libraries and retrieving ShutDownMessage from httpruntime object, but that's also not a case. Cookieless attribute of the sessionState in web.config is set to false (using URL to store SessionID is not an option)
All MS security and bug fixes are installed on the server. IIS Server settings are similar to the ones we use in Test Environment.
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Apr 4, 2011
Alright, so here's my basic ASP.NET page setup: I've got a page with a GridView that has ContentTemplates in it. You can add a row and edit/remove rows at any time. There's a "New" button that creates a new row.
All of this data is bound to custom data objects. So if I have a GridView of "People" and each row has "FirstName", "LastName", and "Gender" (with TextBox and DropDown controls), I then have a "Person" object which has public properties for "FirstName", "LastName", etc. I have the binding set up correctly, and I can push data into the GridView from the object, and I persist the object with the Session variable. My page lifetime structure looks something like this:
Page_Load: Loads the List(Of Person) from Session()
Any events fire, and modify the List(Of Person).
After any event, the List(Of Person) gets saved back into Session(), and is then DataBound to the GridView (and any subsequent fields are also DataBound, such as the DropDownList.
My question is: Whenever I fill in rows in the GridView, and then add a new row (there is no database saving going on whatsoever), my fields clear out and don't persist across PostBacks. So, how can I persist my custom data objects with databinding across postbacks?
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Aug 10, 2009
I need to show a drop down list when the page loads, the default selected value is nothing, or an empty element (such as "-"). When the user selects one value from the list, another drop down list is added below the first one, and so on.My problem with this is how you make the page to remember the drop down lists created through postbacks and the values they have selected?
EDIT: I did this example for dynamically add drop down lists and suscribe them to an event handler but the event won't fire.
EDIT 2: Changed the code because I labelled for VB.Net and posted something in C#. I update the code with some trivial improvements, but still won't fire the event :(
Private myDdlArray As New List(Of DropDownList)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If (Session("ddl") Is Nothing) Then
[code]....
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Jan 10, 2012
I have an ASP.NET form that the user can make lots of changes to, each time they make a change the page PostsBack and the details are updated.If the user hits the browser back button they go back through all the previous versions of the page.Is it possible to stop each PostBack being treated by the browser as a new page?
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Apr 16, 2010
I am settting up control propertis on page load. Like visiblilty of control depending on loaded data. And very simple setting up images to button controls. For page load it works fine but on postback these values are not set back. This is my code. When it's a postback btnSecurityQA image is missing and visibility of all following controls is not set accordingly.
If Not IsPostBack Then
ButtonImage.SetPath(btnSecurityQA, GetLocalResourceObject(btnSecurityQA.ID & "BaseName").ToString())
[Code]....
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Jun 22, 2010
I am looking for a code snippet which opens a image, creates a clone of this bitmap in memory disposes this opened image so that all handles are closed.
Usually we can open a bitmap using this[code...]
the following code however keeps the Image File locked until the application is running, any suggestions how to dispose it properly. (So that no handle is left open )
Things i already tried: use dispose method of bitmap <= doesnt work (need to write implementation)
Using Block also doesnt work.
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Jan 29, 2011
Where can I find the slider control that i used in vb6... is there one for VB2010?
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Aug 3, 2009
I am upgrading from VB6 and started working with VB.Net (VS2005). One problem I have was controls avilable in VB.Net. I can use a slider bar in VB6, but couldn't find any quivalent in VB.net(.Net Framework Components)!! I don't know why I can choose one in COM components, but these requires project generated DLL's to run. I want to distribute just the executable.My questions are:
-Is there any slider bar in VB.Net Framework Components?
-If there is none, Can I use COM component and bundle everything into one Executable? Also is it possible a list of controls in .Net as I find in vb6: url....
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Sep 21, 2010
I cant seem to find one, but there are referances to one on the net. I want to use a slider control to alter the brightness of a light bulb.
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Dec 22, 2010
I would like to create a vertical slider similar to ones you would find designed in AJAX but I need to do it in a VB.NET Windows Form. I'm hoping that someone has seen this done.
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May 24, 2011
in my company intranet, there is a webpage with a js slider. While moving the slider, some textboxes are updated dinamically.
I am trying to change the slider value and submit the form programmatically, but the value sent to the sevrer is always the original "step 1".
If I change the value using the usual
document.getElementById("slider").setAttribute("value","2")
the value changes correctly but the textboxes don't change their values and the info sent to the server isn't the value just changed because is made in js to get the current displayed value.
a way to update the value needed to the server, and make all textboxes update dinamycally?
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May 7, 2012
I'm binding the value of a Slider to an integer property that represents the volume on a networked device. This network request takes a little time (usually <100 ms), and somehow causes the Slider to feel choppy.Here's my oversimplified code to clarify:
Private _playbackVolume As Integer
Private _deviceForDemonstrationPurposes As New Device
Public Property PlaybackVolume As Integer
[code]....
Binding to the PlaybackVolume property will cause the setter to fire while still dragging the thumb. Because of the network latency issue, the slider is locked for however many miliseconds it takes for the request to complete.
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Oct 6, 2008
At work we have this really old excel spreadsheet with movable points in it.This feature no longer works in '07 so I have decided to try and make a VB form to replicate it's functionality.I have the concept down of what I'm gonna do, I'm using sliders for the movable points and I'm using a data grid view for all of the numbers they are just going to type in, and then I have a button that saves all of the data to the database that it links with.I've figured out how to get everything working except the button that saves the data. So there are 4 separate databases attached to sliders and another one that is part of the data grid view. What am I going to have to put into that button under the click event in order to make it save the values in all of these databases?
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Apr 25, 2010
I am trying to make a form expand from one size to another using a slider animation.
The problem is when I run it the form resizes but without the animation. I'm not sure how to use the animation when resizing the form. It works if the form is a set size and then I run the animation.
The form is borderless and starts out with a width of 11 and I want the final width to be 285.
The resize and animation are triggered by clicking on the form.
Here is the code.
Private Sub Form3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
Me.Width = mintformmaxwidth
[Code]....
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Mar 7, 2012
Iam creating a simple program for a friend that plays different internet radios.. And he wants a volume slider.. So i've used the TrackBar control i VB.net and it works as it should.. I can control the volume with it.. However he wants this application to be touch friendly and as far as i can see its not possible to change the size of the actual slider in any way..
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Dec 4, 2011
i doing asp.net and using vb.net.I have a datalist control which inside it show a product img, description, price the problem is that i was to show the product another img, so i want to have a small picture below the img, so when click on the picture the img change to another.
i want something similar to this link : [URL]..this link they use flash to come out with the effect that i want, but they are not in datalist, so think that i may need to use ajax but which one?anyone have any sample or example ? if i was to use the jquery easy slider numeric navigation how am i going to implement onto the datalist?
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Sep 28, 2010
im new to trackbars and i can get the trackbar to display a lower tick frequency but the slider still moves in increments of 1/10 ticks per movement. how do i get it to skip to the next available marked tick?
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Jan 18, 2010
I have a set of x, eg 288, data values. The user wants to fit a regression to a subset of this data, eg (2 - 200), then she wants to analyse within a subset of this fitted range, eg at 20 and 100. So, on my form are four Hor. Slider Bars, to set the lower and upper bounds to the fitting and the analysis. The two that set the lower bounds work fine. The two that set the upper bounds are getting corrupted somehow outside of my code and I do not know how to solve this problem. What happens is that when I click on the right hand arrow on the slider bar, the program runs through my function with the correct values whilst the arrow is down, goes out of my code and then immediately comes back into my code, but with the wrong value set into the Hor. Slider Bar fields that I am working with, eg the .Value field. The new value is always 9 below the maximum that it can be, but I can see no connection to this number.
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Oct 27, 2011
I'm trying to make a slider, or a custom scroll bar, whatever you want to call it, in VB 2010. But I want it to act as an usual scroll bar. I simply can't make it stay inside my form, it just moves around. I have a photo of my code and my designer down the thread. What should I add? I tried to make it stay inside Panel1.
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Nov 13, 2010
I have been trying to find a code that would allow me to use a slider to adjust the users actual computer volume. Is this even possible?
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Feb 4, 2011
I'm trying to find a script to create a slider button.
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Jun 9, 2011
I have got a very simple video player wrote using Visual Basic 2010. I have embedded the windows media player into the app without the controls. Right now it has simple play, pause and open buttons that work with wmp . how to make a slider that corresponds to the normal sliders in video Players?
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May 13, 2011
I'm writing a query to select all records that has any part of parameter. I have one table called Employees. Some people have name like this: John David Clark If the parameter is
[Code]....
I should be able to get result back as long as there's a match in the parameters. If I use Function Contains (q.FirstName & " " & q.LastName).Contains(employeeName), I will not get any result back if employeeName is "John Clark" Function Contains looks only for next words from left to right. It doesn't match a single word at a time. So that's why I used this in the Linq to SQL:
[Code]....
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