I have a user control with cascading dropdownlists. When I populate the controls in the Page_Load event, the second dropdownlist has duplicate entries. These controls are inside AJAX UpdatePanels and I need to find out when DataBind is called on the second dropdownlist to see why it is being called twice.
I am using a SqlDataSource with a ControlParameter to populate the second dropdownlist, not doing it through the code behind.
Is there a window in Visual Studio 2008 that will let me see when DataBind is being called?
Fixed browser issues by updating a script reference in a referenced user control to use ResolveUrl. Now browser issues are fixed. Still wondering where to put Databind.
i'm opening a new window and passing on to it variables in a querystring, the values are loaded into a function that is filling my dataset and then filling my Gridview. after i press the button field in my grid to delete an item, the databind doesn't show the updated grid but remains the same. i've noticed that if i navigate back and refresh i see it correctly. in FF btw no problem.
I am new to ASP.NET (2 months) and my very first assignment is to create a website for a municipality. Purchasing as much reading material as possible, I got started and after some time, I have a decent website (coded in C#) that is ready to be internally tested on the departmental webserver. The Web server is running IIS 7 and the pages were developed with Visual Studio 2010. On the main default page, I wanted to implement a slide show using the AJAXControlToolkit which I installed. I watched the ASP.net tutorial [URL] and literally coded my slide show verbatim. I try to launch my slideshow within my default.aspx page and absolutely nothing happens. The steps that I took are
1. Created a webservice (SlidesService.asmx) which generated a code behind file (SlidesService.cs).
2. I created the web method GetSlides() containing a 22 element array which I place in the code behind file.
3. Implement the ToolkitScriptManager establishing my image control.
4. Defined my Previous, Play and Next buttons.
5. Implemented my SlideShowExtender providing my SlideShowServicePath and SlideShowServiceMethod.
Assumptions: In doing all of the above, I noticed that the SlidesService.asmx file needs no code (as I placed all code within the codebehind file). The SlidesService.cs code behind file should reside in the App_Code folder whereas the the SlidesService.asmx file can remain in the root folder. No Button e.g Button_Click needs to be attached to the code behind source file. If I have conveyed my steps properly, can anyone shed some light on why when clicking the play button, nothing happens? Code is listed below.
I'm having some trouble getting this to work. basically I got the modalpopup to show, and when it's shown i have 2 buttons (Yes and Cancel). When yes is clicked i want a function to be called. Here is my asp.net code:
Protected Sub btnDelScnYes_Click(ByVal sender As Object, ByVal e As UI.UIIterationList.IterationListEventArgs) Handles btnDelScnYes.Click Dim scn As dat.Iteration = New dat.Iteration(e.iterationID, SessUserID) scn.DeleteIteration() Response.Redirect("Calibration.aspx") End Sub
Not sure if this is useful, but just some info: My page have a list of iterations. there are several columns to this table. when the last column is clicked, the modal popup shows and asks the user if to confirm if he/she wants to delete this iteration which is this code:
Dim scn As dat.Iteration = New dat.Iteration(e.iterationID, SessUserID) scn.DeleteIteration()
so i'm trying to get the funtion to be called, but it's not working. when you click "OK" nothing happens. when i debug it and trace the logic it doesn't even go into the above VB subroutine.
My problem is that I have a jqury function basically I want to add gridview row into data base .so that pupose I am doing that by accessing webmethod ,but the web method can’t call from that code .
My data can’t save into data base I will check it.value should be passed but problem is that this function can’t call webmethod I will check it doing debudg.
I have seen that ASP .Net Code Behind files are really slow. I have used local web services which i call from jquery ajax function and they are fast. But i am still confused? Should i display dynamic data from code behind or web services?
I let my web service return a JSON Object and i assign relevant elements from that JSON object to different html elements like (image, div etc.)
I am writing my first AJAX enabled page. Basically I am trying to expand out the lines of a Purchase Order (PO) using our company database. What I want to do is have a button that will that will call on a javascript to update a div field with a table for the PO lines of that PO and at the same time change the function that is called by the button to a function that will collapse the list. How would i do this?
I have an ASP.NET (3.5) web page which calls a few web methods (SOAP based) using jQuery's .ajax method. The web methods implement 'ScriptMethod' attribute and return JSON data. The web service file (asmx) is local to the same project.
I noticed these web methods execute synchronously on the server which means they run sequentially and affect performance negatively, some methods are waiting, when some of them are slow.
I read this article and I am not sure if I understand that WebMethods which implement Scriptmethod can run synchronously only (they implement IHttpHandler not IHttpAsyncHandler).
If this is true, I might have to change the design. I am looking for other designs, maybe like using WCF, where the browser can call webmethods using JavaScript and the web methods run asynchronously on the server.
when i call modal popup extender the background is scrolling , i want to freeze the background page then is there any properties or any other idea to get this ..
I am getting "Sys.webforms.pagerequestmanager is null or not an object" error when calling the webpage from outlook for some client machines. In some machines it is working fine.
How do I protect a webservice if it is called from ajax ?
Update: I realize that my question didn't reflect what I intended to ask. I don't want user to be able to do the request by pointing to it with its webbrowser but only in the context of my app.
I am using Ajax authentication service to login/logout users.And have 2 boxes one for logged users,another for any user.When user logged in he get loged in box,then go to another page,then press back,i have unlogged box.In Page_Load i check if (Reques.IsAuthenticated) then i change box on corresponding,in this case on Logged in box.But Page_Load is not called when i press button back(in browser) or backspace.
I am getting an error while calling a javascript from a dropdownlist which is placed inside a modal pop-up panel. if i am ebeding a small script like onchange="javascript:alert('hello');", it works fine. But if i m using <script> </script> for embeding a javascript its showing 'object doesn't support this property' error. when i debugged it the compiler does not get into the javascript function.
I have developed a web application which contains aspdotnet treeview control. In this treeview control has binded with some database value.. that controls has one parent node and more than one child nodes for each parent node.
my problem is here, when the user clicks the parent node, I need to fire a javascript onclick function before the server side event(SelectedNodeChanged) called..
If I provide javascript to the parnet node when it is binding, then I could not fire the server side event(SelectedNodeChanged).
How to provide onclick javascript event for parent node in treeview control even the parent node has SelectedNodeChanged event.
I have an ASPX page which hosts a Custom Control. That custom control needs to call an ASMX web service. I would use a PageMethod, if the fact that I'm calling from within a Custom Control didn't preclude that. I'm looking for some guidance on the most effective way to try and lock down the ASMX call such that it will only succeed for my users calling it from my ASPX page - and not for anyone trying to call it from elsewhere. I've seen various ideas around session variables and so on.
and an OnRowDataBound event handler that's tied to the databinding. In that event handler, how do you make column 2 contain 2 objects from TheSource. For instance, in the TheSource, there is a variable for FirstName and another one for LastName. Column 2 needs to contain both the first and last name in the same cell.
I am using ASP Flash Video Player inside a data list control. and i am trying to bind the video url to a column in a SQL Server that has the url. when I use VideoURL='<%# DataBinder.Eval(Container.DataItem,"video") %>'> Nothing happens but when I use VideoURL="/manager/evideos/VTS_01_0_part3.flv" The video plays both have the same url
Dim MyConnection3 As New Data.SqlClient.SqlConnection("Data Source=XXX") Dim mydtadapter3 As New Data.SqlClient.SqlDataAdapter("Select title, video from EVideo", MyConnection3) Dim ds3 As New Data.DataSet mydtadapter3.Fill(ds3, "video") dl.DataSource = ds3.Tables("video").DefaultView dl.DataBind() <ASPNetFlashVideo:FlashVideo ID="FlashVideo1" Width="475" runat="server" VideoURL='<%# DataBinder.Eval(Container.DataItem,"video") %>'> <HTMLAlternativeTemplate> <asp:ImageButton ID="ImageButtonGetFlashPlayer" runat="server" PostBackUrl="http://www.adobe.com/go/getflashplayer" ImageUrl="http://www.aspnetflashvideo.com/images/get_flash_player.gif" /> </HTMLAlternativeTemplate> </ASPNetFlashVideo:FlashVideo>
i have panel i want to add 4 dropdownlist wwhich have sqldatasource1 dynamically then add 4 dropdownlist that have sqldatasource2 but sqldatasource2 have select sql statmentDepends on sqldatasource1 that do ok
but when i chang index for first dropdownlist the 2nd dropdown not change dirctly how can i databind for next dropdown
