How To Call Code Behind Button Click Event Or A Code Behind Method From Javascript
May 18, 2010how do you call code behind button click event or a code behind method
from javascript.
how do you call code behind button click event or a code behind method
from javascript.
My motto is to call a Java script function at the end of button click code behind. ie, firstly i need to execute the server side function after which my java script function should get invoked. My server side method is as follows
protected string SaveEmbedURL_click()
{
if (txtembedurl.Text != null)
{
School aschool = new School();
aschool.SchoolId = CurrentSchool.SchoolId;
aschool.EmbedUrl = txtembedurl.Text;
SchoolRespository.updateEmbedUrl(aschool);
return "true";
}
}
My Java script function is as follows
function SaveEmbedUrlClientSide() {
admin_CustomizeTheme.SaveEmbedURL_click(true);
$('#lbl_embedcode').removeClass('hide').addClass('show');
$('#embedCode').removeClass('hide').addClass('show');
CopyToClipboard("embedCode");
}
I have a web method in my code behind:
[System.Web.Services.WebMethod]
public static string GetStateData(string state)
{
//this is where i want to call a javascript method "GetItems"
}
I have a javascript method that retrieves some values for me and I want to get use one of those values in my web method
function GetItems() {
var variable1= $("#<%=Item1.ClientID %> input:checked");
var variable2= $("#<%=Item2.ClientID %>").val();
return [variable1.text(), variable2.val(), variable2];}
I've searched for ways to call the javascript method from the web method but every time my search results in how to call a web method from javascript.
I did find this but it was done from the code-behind of a silverlight project and when I tried adding the correct reference to my code-behind it wasn't there
var result = HtmlPage.Window.Invoke("GetItems"); Is there a reference I'm missing?
I currently have this working but it requires me to have a static method as the method called in the code behind. I would like to be able to access some member variables that can't be static.
EDIT: Let me clarify, I'm looking to edit a value in one of the user controls on the page based on the button click. I am holding the user controls in a list on the page and using the parameters passed through the javascript to find the user control that I want to update and modify the value there.
It currently looks like this:
Javascript:
function incrementCompletes(obj)
{
var firstParameter = $(obj).parents('.parentClass1').find('.childClass1').html();
var secondParameter = $(obj).parents('.parentClass2').find('.childClass2').html();
[Code]....
I would like to find a solution that does not require the method called to be static.
If I have a web form with a button control on it. Is their a way to have it's button press method called from a Java Script method? Can someone show me how to do this?I have a hidden button on a web form. I need to simulate it being pressed programatically through Java Script. So I need Java Script to run the code behind method for a button.
protected
void PageButton_Click(object sender,
EventArgs e)
{
// How to have this method called from Java Script?
}
I want to call JavaScript function in Server side Button click event of ASP.Net Button ....
View 1 RepliesHere is my situation. I have inherited an MVC 2 application. I am learning MVC 2 on the fly with this application. I am trying to validate a checkbox by doing this: Grey out the submit button until the user clicks on the "checkbox" then the submit button is enabled. 1st question: Where do I place the code to make this happen? 2nd Question: How do I go about doing what I explained? I wanted to use a simple javascript code within the click event of the checkbox but I don't see this in MVC 2.
View 4 RepliesI'm building a button in my code behind file and want to bind the click function to an existing click function of a different button. How do I handle this? I was hoping for something simple like:
Button b = new Button();
b.onClick = otherClickEvent();
but apparently that's not doable. Am I missing something here. I'm aware of OnClientClick, but that only deals with the JS side of things apparently.
Situation:
1) Click on 'Check' button and the button will disable
2) Run a processing code(for checking) and once it is done, navigate to a new page(NewPage2).
Here are 2 code situations (1):
[Code]....
and if I do this way (2),:
[Code]....
it will navigate to NewPage2.aspx, but during the execution of the processing code, ButtonCheck control will not be disabled as the Click Event has not finished, and I want it to disable during the checking process. If the 1st option is executed, it will throw to me "Response is not available in this context."? HttpContext is null for (1). In my opinion, I think that the navigation does not recognise the response object as it is in a thread and has exited out of the buttoncheck event. But I'm still not sure why.
how to disable the button and run processing code during the click event and be able to navigate to a new page?
I have an asp.net button, that when clicked calls a code behind function. The function does some evaluation, and then I want to call javascript from within this asp.net function.
View 2 RepliesHow to fix the error in code..this code will always display msg box if user select ot nt slect the checkbox ..
but i want if user doesn't select any of the checkbox or forgot to select checkbox then msg box will ppear other wise redirect to other page ..
<form id="form1" runat="server">
<div>
asp:CheckBox ID="CheckBox1" runat="server" /> [code]....
I have a website that contains several aspx pages linked to a single aspx.vb code behind file. Four of these aspx pages have a single button on each (four total). My issue is handling each button's click event on each page using the single code behind file.
My four buttons' names are:
[code]....
On button click i do action A1, like
btnAction1_Click(object sender, ImageClickEventArgs e) {
//Action 1 code
}
now ,i'll click this button. If page is refreshed after Action1 is done..request is sent again and same action is repeated.
I need to collect the data entered by user for a quote and send all the data with labels to an email address. SMTP server is set up in web.config file, but I need to know the code behind for the submit button click event for the form. I do not need to store any data in a data base just need to send each label,field,radiobutton,etc. user responses to email address. All of the code I have been able to find has not applied to my situation.
View 10 RepliesI have a website that shows images people have uploaded.
[URL]
I want to be able to show a popup window when i move the cursor over an image. It should show information about the user that i take from the database.
I have found a javascript that works, it fades a window in and out. But i cant call it from codebehind.
My default.aspx has this code:
Code:
[code]....
I have buttion on web page and client side java script ConfirmResetPassword() for confirmation message which return true or false
[Code]....
if (confirm("Are you sure you want to reset password of this user?")) {
return true;
}
return false;
}
}with Telerik AjaxSetting[Code]....
<input type="button" name="ctl00$ContentPlaceHolder1$btnResetPassword" value="Reset Password" onclick="javascript:return ConfirmResetPassword();__doPostBack('ctl00$ContentPlaceHolder1$btnResetPassword','')" id="ctl00_ContentPlaceHolder1_btnResetPassword"
/> ?
i have a popup that is getting displayed when Save button is clicked. The popup has 2 buttons. Yes and No. No should cancel the popupand yes should take you to function in the code-behind say, btnSave_Click(object sender, Eventargs e). How is it possible.
Below is the code where i am showin the popup.
[code]....
I got an event handler like this, in this event, i wanted to call another button click event. How can I do that?
[Code]....
if (ds.Tables[0].Rows.Count == 0)
I am just learning ASP.Net and i am more using C# as code behind than vb.I am trying to call a method of the code behind (file.aspx.cs) from the (file.aspx).I know how to do it the easy way:- create a button from ASP.Net and double click on it than the property "onclick" will be linked to the method.But i don't know how to do it from a query:
- By example, from an Access database,i use the syste, [using System.Data.OleDb;] and i made a query and display it into a standar object named "Table" which has rows (tablerow) and cells (tablecell) and the cells have one of their properties which is "Controls" where developers can add button (regular button, image button, link button, etc). With i display the buttons from the database, i can not call a method from code behind! I can't either use their properties "onclick" to call i method i created in the code behind.Is there a way to do it ?
I am trying to execute a method in ASP.NET from Jquery
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "MyMessages.aspx?id=66&epslanguage=sv/test",
data: "{}",
dataType: "json",
error: function(xhr, err) {
alert("readyState: " + xhr.readyState + "
status: " + xhr.status);
alert("responseText: " + xhr.responseText);
},
success: function() {
alert("it works" );
}
})
code behind:
[WebMethod]
protected void test()
{
test.Text = "works";
}
I get errormessage redayState: 4 and status 200 when I do this. I don't understand the problem. I am vey new at this. :)
How to make a span tag behave exactly like an asp:button (ie) using its onclick method to call a codebehind method..
<span onclick="MyPageMethod()"></span>
I know linkbuttons can do it for me,but my question is can span tag do it for me?
My pages base on master and content pages and in content pages I have Multiviews; inside Multiviews I have RadComboBoxes.Two of my RadComboBoxes are parent and child, like country and city dropdowns. Therefore in code-behind I put some code in the OnSelectedIndexChange event of parent RadComboBox for filling its child; I use a hidden field for country id and sql datasources (stored procedures). Meantime parent and child combo boxes are in an update panel.For doing this job i set the autopostback property of parent combobox to true,but I do not want that autopostback=true because of some focus problems that I coded with jQuery.So I want to convert the OnSelectedIndexChange event in code-behind to a method and call it in jQuery (in change event or something like that of parent combobox). How can I do this?
View 1 RepliesI want execute below callback() method after completion of document.getElementById('btnDownload').click(); method . Now callback()executing immediatly. I want wait "Click()" process done then Execute callback(); method.
function LoadPopup() {
// find the popup behavior
this._popup = $find('mdlPopup');
// show the popup
this._popup.show();
// synchronously run the server side validation ...
document.getElementById('btnDownload').click();
callback();
}
function callback() {
this._popup = $find('mdlPopup');
// hide the popup
this._popup.hide();
alert("hi");
}
I have a Java Script method that is called from an Aspx page named Default.aspx. The Java Script method is calledwhen a linked button on that page is pressed.
function Redir()
{
window.status="";
va urlGetit = "ConvertToExcel.aspx?" + "&test=" + 7;
xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET",urlGetit,true)
}
This Java Script method then calls my Code behind file named ConvertToExcel.aspx.cs" where I build an MS Excel file
How to call usercontrol's code behind method in aspx.cs
View 1 Replies