Javascript - Web Method Won't Call But Does Not Error
Feb 12, 2012
Im struggling to get a web method to work in VB. The javascript gets called but never seems to call the web method. I am running in debug mode and get no errors.
Here is the code:
<System.Web.Services.WebMethod()>
Public Shared Sub PasteEvent(EventID As Integer,
startDate As DateTime,
endDate as DateTime,
[code]....
So far I have :Updated my script manager in the master page to have enablePageMethods="true" Tried adding Imports System.Web.Services Moved the javascript into the body rather than the head
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May 15, 2012
I have a asp.net web application with jquery controls. I have a datagrid that will display data from a database table and created a WCF Service to access the db and return the data. I want to be able to call the WCF service from this application which is on a different server and have the xml data returned, converted to json format to be used in the datagrid which is a jquery widget. I have tested the web service and it works fine. Should I call the web service from the javascript function within the xml or create a .net method behind that calls the service and then does the conversion? From these how would I get started?
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Mar 10, 2011
I am trying to call back to a code behind method using Javascript and it seems like the only way to do so is using the Page.ClientScript.RegisterClientScriptBlock() don't need to return any data back to the calling javascript function.
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Mar 25, 2011
I am currently adding keyboard shortcuts to our web application, so from JavaScript.So far, it has consisted mostly in triggering the click events of buttons already exposed in the user-interface.Now, I would like to add another one which redirects to another page.The new page URL needs to be generated based on elements from the source page query string.Basically, I have a date in the query string and I want to generate a new URL for the next day.
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Mar 11, 2009
I'm using VB6 and trying to get an instance of a Type Library object.After i retrieved the object and i'm trying to invoke a method. I'm getting this exception. However, i've checked with the parameters and its type. it is correct.I found something fishy, that method doesnt have return value. But it is throwing a compiler error whenever i'm trying to call the function and the compiler error went off when i get a return value from that method.I don't know,
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Nov 12, 2009
Does calling the Dispose method on a Windows.Forms.Timer call it's Stop method? Or should I stop the timer before I dispose it?
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Feb 16, 2010
I will try to explain what I need.Let's say that I have a class like this:
Public Class Example1 Public Sub ToBeCalled()
[Code]...
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Sep 24, 2009
start with I was given a program by a friend that was created in Excel 2003 with the help of Visual Basic Editor. He said he used Visual Basic 2003, which he is not 100% sure about. Anyways he used CurLine in the program and when I try to open it in Excel 2007 and then open the Visual Basic Editor and run the program I get the following error:Run-time error '-2147418113 (8000ffff)':Could not get the CurLine property. Unexpected call to method or property access.
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Jan 29, 2012
I have a Application that Crypts all Files in a Directory and the Subdirectories
Public Shared Sub CryptAllFiles(ByVal crypt As Object)
'check if this dir exists
Dim vDirInfo As New DirectoryInfo(vPath)
If Not vDirInfo.Exists Then Exit Sub
'get all files' sizes in current path
[Code]...
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Apr 25, 2011
I have a javascript function that should open a pop up window like so
function callBackWindow(url) {
indow.open(url, 'OpenWindow', 'width=1000,height1000,left=-10,top=-10,scrollbars=no');
return false;
[code].....
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Oct 6, 2011
How can I call a javascript function from code behind?The most popular response is "ScriptManager.RegisterStartupScript" however, that does not work in my situation. I have a vb class that is doing a database check to see if a record exists. If exists, then call a javascript function to display an alert("Record exists") So I am doing something like
Dim strMessage as string = "javascript:RecordExists('Param');"
How do I call this function from my vb.net class?
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Jun 27, 2011
Problem is, I need to call a VB.NET function from javascript, no two ways around it. This is a bit harder to find.BTW -- Web/Page methods won't work. I have to be able to reference a listbox and it's selected items when the VB code-behind fires.
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Jan 31, 2012
i have a java script function which help to calculate the total cost by taking the price * by the quality
<script type="text/javascript">
$("[id*=txtQuality]").live("change", function () {
if (isNaN(parseInt($(this).val()))) {
[code]....
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May 9, 2009
I am using textbox(txtFileType) with event OnFocus=("this.blur();"), so I can't use textchanged event for this textbox, I have written a vb code to calculate my FileNumber using Storeprocedures based on the value of textbox(txtFileType). Can I call this vb code from javascript which can be used in clientside.. please help with an example..
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Dec 19, 2010
How can I call a javascript function at the end of a vb.net S
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Mar 4, 2009
How do I call a Javascript ( sampleButton.copyToClipboard() ) function in a webbrowser which is only linked with a button
<div id ="sampleButtons " >
<button class ="btn " onmouseout ="this.className='btn' " onmouseover ="this.className='btn btnhov'; Tip('Blub') " onclick ="sampleButton.copyToClipboard() " >
[code].....
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Jun 22, 2010
i make a program use javascript to call VB.Net function..but it doesn't work...can somebody help me to check this code...Imports System.Runtime.InteropServices
[Code]...
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Mar 12, 2009
I'm trying to run some java script just before a page redirect but it fails to run.
When I comment out the Response.Redirect all works fine but this goes against the particular requirements. how to implement this functionality?
Dim strscript As String = "<script>alert('hello');</script>"
If Not ClientScript.IsClientScriptBlockRegistered("clientscript") Then
[Code]....
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Feb 10, 2012
I have a function that is responsible for populating an SSRS report. The user presses a button and I go out and check to see if there is data. If no data, I provide a NO DATA message. If there is data I call the SSRS report which I would like to open in a new window.
<script type="text/javascript">
function openWindow(url) {
document.forms[0].target = "_blank";
}
</script>
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Apr 5, 2010
have a subroutine called CheckDate() in the code behind.
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Mar 17, 2012
i want to which way is better when concentration is on processing speed. i want to call a method that compute some data that method is on another form in my windows form application then what you prefer is better way 1) to call that method in another form and use returned value or create similar method in form where it is required.i want to make it's processing fast.
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Dec 14, 2011
I'm working with a VB.Net page which calls a web method from JavaScript, this was working upto a week ago and now for some reason is not working.
Firstly my page generates a list of items that can be clicked, The line that does this is:
TicketHTML = TicketHTML + "<td><img src='../images/delete.png' Class='imgTicketClose' alt='Delete Task' onclick='DeleteTicket(" + row("id").ToString() + ")' /></td></tr>"
I know this is working as when the item is clicked I get a javascript popup so I would assume the problem is not here.
Now my Javascript:
function DeleteTicket(ticketID)
{
var answer = confirm("Do you really want to delete this task?")
[Code].....
EDIT: Could anything in the web.config file be preventing page methods from executing? I have just noticed this happening with a completely seperate web method and have checked the integers being passed into the javascript with an alert() and they are all valid
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Apr 20, 2012
I have a Javascript function in the js file (test.js) and I need to call her in visual basic 2010 enter her input parameter and load response javascript functions in visual basic.
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May 31, 2011
I have an ASP.NET application with a button that executes VB.NET on the server when clicked. Specs have changed, I've added a menu of sorts which is to replace the VB button. With some from S.O., I've managed to manipulate some javascript which does a postback and executes the button's code. I figured I could just make the button invisible and still be able to call it's on_click event from js. How wrong I was!
So now, somehow I'm supposed to call a VB sub from either javascript or (boss says) ajax. I have no idea how to do this. Could anyone give me a good direction as to how I can call a VB.NET subroutine from ajax on the client? Or javascript?
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Feb 22, 2012
I have a flash video player embedded in a page which has javascript calls for it's controls, specifically calling playStarted() when the play button is pressed. I want to capture this event asynchronously to record when people are actually playing the video versus visiting the page, but I'm not really sure how to do this.
I was thinking the "hack" of a way would be to create a javascript function called playStarted() that would post the video ID to a separate ASP.NET page that would then record it to SQL (where I store my data on page visits and where I want to store my data on video plays.)
But ideally there is a better way to do this where I can register the javascript to the script manager so it can trigger a public sub asynchronously when it's called
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Jun 26, 2011
I am have been trying to teach myself ASP.NET and Javascript for a project and have been stuck on one problem for literally dozens of hours now. I found a really nice javascript drag-and-drop list online, copied the source offered and split the css into a .css file, the javascript into a .js file and the HTML and reference into my asp.net page. It worked perfectly. Next, I replaced the javascript list with a static HTML list populated with the same data, wrapped it in an UpdatePanel and set up an "edit order" button to swap the static list's HTML for the javascript list's HTML when the button is pressed.
[Code]...
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May 19, 2012
Searched a bit, couldn't find a clear answer.I have a big HTML table with numbers in it. I have a selector (radiobuttonlist) that the user can click if he wants to see the table in $ or days.Right now it works perfectly but the page refreshes because i'm calling a code-behind function (RefreshTable) everytime the user clicks on one of the two radiobutton since it changes the format and needs new calculation done by the RefreshTable function
. Is there any ways I can call that function without refreshing the page using ajax or something ?
The function has only one parameter : ProjectID, it's coded in VB.NET and we're using ASP.NET
Here's the table code from the .ASPX page, it's only the shell, everything is added thru a VB.NET method called when the RadioButton is changed (autopostback=true), so we check wich one is selected and execute the VB.NET method to populate the table. (code of the function is below)
[Code]...
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Jul 22, 2011
I have some javascript that should log a user out after a certain period of inactive time.I have an event handler in the code behind that handles the normal LoggingOut event of the LoginStatus object, but I can't figure out how to call it from my javascript.
I know you can use __doPostBack to call an event handler that handles the Click event of a link or button, but it doesn't seem to work for my LoginStatus object - I'm thinking it might be because it has no Click event (here's the doc) - it's not really a normal link/button.
The only other way I can think of to handle this is to create an actual logout button/link, write another event handler that does the same thing as my LoginStatus event handler, and call this new one using __doPostBack.Is there any way I can call the LoggingOut event handler from my javascript?
The page:
// html
<asp:LoginStatus ID="loginstatus" runat="server" />
...
// js
[code]....
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Apr 13, 2011
I am working on a VB.NET web application. When someone successfully changes their password I want to show a popup message that lets them know it was changed successfully. After they click OK I want to redirect them to the main page. Code looks like this:
ClientScript.RegisterStartupScript(Me.GetType(), "confirmScript", "ConfirmNewUser();", True)
Response.Redirect("MainPage.aspx")
Why does the redirect happen and the alert popup never displays?
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Jul 13, 2009
We have a web app in a web browser running on an intranet so security is less of an issue. We have a separate win form app. Is there any way the Win Form app could call javascript in the web browser. The browser can't be embedded in the WinForm.
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