I am trying to call some javascript functions which I ahve written in some file. Eg.
function OpenPopup() {
alert("OpenPopUp");
return false;
}
when I call this from button from OnClientClick = "OpenPopup()" it is not called but when I put this function on MasterPage it is able to call the function.I added this is the MasterPages's Head
<script src="Scripts/something.js" type="text/javascript"></script>
I have a JavaScript-based timeline which needs to use data from an SQL server. The queries and the JSON conversions have been worked out in the form of C#.NET functions within a code file related to an .aspx page. So for a complete newbie to ASP.NET, how do you set up a function call like this from JavaScript?I would love it if someone had some simple example code I could learn/get some pointers from.Edit: I am using .NET 3.5
View 1 RepliesI have a user control which opens a new window for some item selection. Once an item is selected on that window, the item ID should be passed to a callback javascript function in the user control. In order to have a unique callback function name in the user control (it may have multiple instances on the same page), I added the user control ID to the function name as follows (defined in the ascx file):
function OnItemSelection_<%=this.ID%>(selectedItemID)
{
OnItemSelection("<%=SomeControl.ClientID%>", selectedItemID)
}
Where OnItemSelection is defined in an external js file:
function OnItemSelection(controlID, selectedItemID)
{
$(controlID).do_something(selectedItemID);
}
The issue is that now I'm not sure how the new page can call the "right" function (of the user control instance where it was opened from). The only idea I have in mind so far is passing the name of the callback function in the query string:
var CallbackFunction = function(selectedItemID)
{
window.opener.<%=Request.QueryString["CallbackFunctionName"]%>(selectedItemID);
}
or maybe just the opening user control ID:
var CallbackFunction = function(selectedItemID)
{
window.opener.OnItemSelection_<%=Request.QueryString["UserControlID"]%>(selectedItemID);
}
My questions are:
1) Is it a bad practice passing javascript function names (or user control IDs) like that (I suspect it is)?
2) What could be better way to handle this scenario? Edit: Another way I'm considering now is declaring a global variable in the user control (registering it from the code behind so it'll appear only once). Then, when opening the new window, it's possible to assign the relevant function to it (OnItemSelection_<%=this.ID%>), and call it from the new window. Seems much cleaner than passing user control data through the query string.
I have a page with three HTML labels and their corresponding ASP.NET gridviews contained within divs. Now while learning jQuery, I am trying to achieve two things:1. Change the css class of the lables upon mouse hover/out.2. Slide up/down the grid div upon clicking of the labels.It looks to be working as expected, but I wish to know if I am doing it the right way.My complete jQuery code is:
$(function ColorChange(ID) {
$("#" + ID).toggleClass("gridLabel");
});
$(function ShowHide(GID) {
$('#' + GID).slideToggle('slow');
});
And I am calling these function from onmouseover, onmouseout and onclick events of the label controls passing in the label ID as parameter. As an example:
<label id="lblWebComp" class="gridLabelDefault" onmouseover="ColorChange('lblWebComp')"
onmouseout="ColorChange('lblWebComp')" onclick="ShowHide('gvDivWC')">
Web Components
</label>
Kindly let me know if this is the best way to achieve these effects? Don't I have to right the document ready function in the jQuery code?
I have an .aspx.cs page in my solution and I'm trying to call a function which is located in a Master page.Would anyone be able to offer any pointers on how to achieve this as I cannot figure it out - thought it would have been fairly straight forward!
View 3 RepliesI am using one webservice, which is for .NET platform, for address validation.Its running successfully on .NET (C#). However, I also want to use the same service from classic asp (legacy code) pages. Would appreciate if someone could give a clue how togo about it? Here are some ideas that I came up with and would appreciate if you could add to it
View 2 RepliesI want to check two conditions in the OnClientClick event of an asp.net button control. I tried this but it is only checking the first function.
OnClientClick="javascript:shouldSubmit=true; return checkFunction1(); return checkFunction2();
What is the correct way do it?
I get this error: Cannot refer to an instance member of a class from within a shared method or shared member initializer without an explicit instance of the class.
Partial Class _Default
Inherits System.Web.UI.Page
<WebMethod()> _
Public Shared Function ParseData() As String
Dim value as string = GetValue()
End Function
Private Function GetValue() as String
Return "halp"
End Function
End Class
I know it has something to do with the fact that the first function is shared and the second function should probably be Public as well but I don't fully understand the reason behind it. Probably not relevant but I'm calling the web method from some javascript.
I have a page that contains a few user controls which all use an id in a querystring. I want to change this so that the page can send the id to the user control and can call a function on the user control.
Also is it possible for the user control to get the id from the page or a control on the page as its parent?
I think I summed up the question in the title. Here is some further elaboration...I have a web user control that is used in multiple places, sometimes more than once on a given page.The web user control has a specific set of JavaScript functions (mostly jQuery code) that are containted within *.js files and automatically inserted into page headers.However, when I want to use the control more than once on a page, the *.js files are included 'n' number of times and, rightly so, the browser gets confused as to which control it's meant to be executing which function on.What do I need to do in order to resolve this problem? I've been staring at this all day and I'm at a loss.
View 2 RepliesI've looked at about 5 Questions here on SOF and haven't really found a useful answer for this. How am I supposed to invoke my javascript functions from client-side events in my .ascx controls? Here is my .ascx file.. what most the answers have led me to:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="UIMenu.ascx.cs" Inherits="controls_UIMenu" %>
<script language="javascript" type="text/javascript">
function insetItem(myMenu)
{
myMenu.setAttribute("class", "myClass");.......
I'm getting different errors when doing it this way. ".....ascx does not contain a definition for "insetItem"", and my other pages that use this file don't recognize it anymore. When I try to put the js on the actual .aspx pages that will be using it, I get the same no definition error.
I just started learning jscript, still pretty noob. I'm trying to make it so when the user down clicks a menu item, I want that item's borderstyle to change to "inset". I'm not sure how to change that attribute for the specific item that gets clicked either in javascript >_< but that's another question.
I wanted to use some javascript functions in a ASP.net 3.5 web site. I have added a javascript1.js page in the Sites Folder with a Javascript Test function.
<script
src="~/Scripts/Javascript1.js"
type="text/javascript"></script>
I'm not familier with Javascript, and I have to convert a Project's Javascript codes to Jquery scripts.
ofcourse I'm not project leader or something like it, I'm just elaborating that this process may has what kind of issues and may face with what kind of needness ?
So if you know any solution to convert Javascript Functions to Jquery ones
[Code]....
What's wrong with it?
All of my scripts run fine in my Master page, and all of the functions run when called in the content pages, but for some reason, all of the sudden contentPageLoad() doesn't run anymore in any of them. I am sure that I have changed something somewhere, but I can't figure out what it is.
View 1 RepliesI have an application which use some javascript functions,As all javascripts include in Masterpage, most of them which comes withpage are not necessary, and some of those are repeated ( cause used in some different JS file. )So I want to check if there is a way to determine duplicate functions and remove them ?
View 4 RepliesI knew how to apply Javascript function in html file. How to use javascript(including functions) in code behind file?
View 2 RepliesIs there a way to run server side functions by javascript? There are two things I need to do:
1. Either emulate clicking a link/button, or calling the OnClick function directly (not OnClientClick)
2. Control the back and forward control of the wizard control by using the keyboard
i think The javascript function called by using RegisterStartupScript or RegisterClientScriptBlock executed after the code in the method is executed.I want to execute the javascript function called by RegisterStartupScript or RegisterClientScriptBlock to be executed before the code in buton click method is executed. For that what should i do?
View 5 RepliesI have a webcontrol that will exist multiple time on a page. I have some javascript (JQuery) in the control and when I have multiple controls on a page the functions get confused.I have seen plenty of stuff on why this is the case - basically my functions use set id's but i need to somehow make them relative.An example of a function ...
function showUploader() {
var img = $('#<%=ImgID.ClientID %>');
$('#<%=UploaderIFrame.ClientID %>').attr('src', '<%=ResolveUrl("~/Controls/EditableImageControl/ImageUploader/ImageUploader.aspx") %>' +[code]....
how to get references to the html elements in the web control?
I am trying to figure out why javascript functions I create with declared return types are not giving me intellisense hints. See code below, specifically updateNextItemTime in Sample.TodoList.
[Code]....
Is is possible to call a Javascript function whether it's embedded in the HTML markup file or a .js file from a VB.Net procedure/function?
View 3 RepliesI'm using Page.ClientScript.RegisterStartupScript to invoke a prompt box. I want to get the value and pass it to a c# method. Can I do that?
Here's what I'm trying to do but the syntax is off:
[Code]....
I have a web application that will need to access code behind methods as well as javascript methods. For this particular implementation it doesn't really matter which order they are called in from a program flow perspective.
I'm looking for insight into when it would be appropriate to use a code behind to call javascript and when it would be appropriate to call javascript from a code behind. Are there any ramifications of doing it one way or the other that I should be aware of before moving forward with an implementation?
Is there a best practice way to do it or is it very specific to the actual implementation?
i wanted to show or hide duplicate records according to query. So, I need to know how to call the javscript function from C# codebehind.
<a onclick="Grid1.insertRecord(); return false;" id="a2" href="javascript:">Save</a>
When I click save i need to show a popup which i Have written in javascript.
if (!exist)//exists is the query
{
System.Web.UI.Control my = FindControl("a2");
a2.Attributes.Add("onclick", "retrun HideDuplicate()");
This line returns an error saying "a2 doesnot exist in current context."