I want to call a validate function on asp:button click event and also want to do some server side work on this click like adding values to session variables and redirecting page to new one.
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I have a web form in which I create many controls including a submit button dinamically.
I want to check a condition in the button's click event and if it comes true, call a javascript funtion to show an alert. but the problem is when I use :
Page.RegisterClientScriptBlock("ClientScript", script);
in the btn_Click event, it is not working. I guess the script should be registered at page_load.
i have used PageMethods to access the server side functions in javascript , but now my problem is that with pagemethods your controls will not go throught the full page lifecyle and these leads me to have "Object not set for an instance of an object" error. Now can someone come with a differnt approach without using pagemethods. What i want is to call a server side function , i dont want to pass any parameters to it
View 5 Repliesi have used PageMethods to access the server side functions in javascript , but now my problem is that with pagemethods your controls will not go throught the full page lifecyle and these leads me to have "Object not set for an instance of an object" error. Now can someone come with a differnt approach without using pagemethods. What i want is to call a server side function , i dont want to pass any parameters to it
View 6 RepliesGetting error calling Javsscript function from another Javascript function
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Possible Duplicates: how to call server side function from client side - asp.net Calling ASP.NET Code Behind function from Javascript Calling ASP.NET server side method via JQuery While loading an aspx page, how is it possible to call a server side method with the client side code?Can u show one example?
View 4 RepliesCan I call a javascript function from a hyperlink field in gridview?I dont want to navigate to a different page,instead i need to call the javascript on clicking the hyperlink.
View 3 RepliesI need to call a javascript funtion, on the click event of buttons(asp button or html button) in my gridviw.Also I need to pass the ID from the gridview(datakey value) as a parameter to the javascript function.
ie ,All the rows in my gridview has a button field,on clicking each of the buttons ,a javascript function is to be fired ,and the ID of that particular row from gridview(datakey value) should be passed to the javascript as a parameter.
Can I call a javascript function in the RowDatabound event of the Gridview?
I am currently enabling/disabling buttons in each of my gridview rows based on a status value from the database.I need to fire a javascript function (say alert('current status')) when the status is 0,else dont fire that function.Can I achieve this in the row databound event?
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 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."
i need to know if this can be done :
i have a grid form with 3 fields field1 & field2 & field3.
in the insert statement the field 3 gets a javascript function result that uses filed1 & 2 values.
Now what i want in the grid view update statement is : to call the @field 1 & @field2 from the update statement to a similar javascript function..(do soem calculation ) and then re-assign the java function result to the @field3 variable in the update statement..
(//// Or simply what i want is to do the same calcultions onthe fields while perfoming an update operation.. //).
how can i perfom the calculations in a grid view update statament ..
how to call a partial view from within a Javascript function? I've looked around the web, but all the examples that I have been able to find are examples using Ajax.ActionLink or Ajax.BeginForm.
When a user clicks on an item, I want to be able to hide/display some Divs and possible do other operations before calling the partial view. ActionLink doesn't appear to provide that ability. Depending upon the item the user clicked, I may be assigning the results of the PartialView to the same Div, or to a different Div.
What I'm looking to achieve, is to have an onclick handler associated with the item which performs whatever other operations might need to be done, then assign the result of the call of the PartialView to the appropiate Div. In some instances, the function might even be making two separate calls to PartialViews, to update the content of two separate Divs.
using vb.net/asp.net 2005
I have a content page (<asp:content>) where I am using javascript and normally I am adding the attribut in the code-behind page. however I now need to add a javascript function that will cause when the body or panel loads. I have a test javascript function that simply shows an alert box but I cannot get it to display. Is there a special way to do this in a content page?
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How can I make a call on a function of an external javascript file?
More specific...
In the head tag i have
<script type="text/javascript" src="JScript/FontSize.js"></script>
The external javascript file, (that i would like to call) FontSize.js contains the following functions.
[code]...
Of course nothing works as it should because, i do not know how to make the call to a function to an external js file
I am trying to call a Page Method using AJAX.
See the code
<asp:Button ID="btn_upload" runat="server" CssClass="btnEffects" Text="Upload"
onclick="btn_upload_Click" OnClientClick="return Validate();" />
Validate method is supposed to return true/false. The code for Validate method is
<script language="javascript">
function Validate()
{
var filename = $get('<%= txt_filename.ClientID %>').value;
PageMethods.IsValidFile(filename,OnSuccess, OnFailure);
// IsValidFile is a Page Method of bool return type
}
function OnSuccess(result)
{
if ( !result)
{
alert('File '+ $get('<%= txt_filename.ClientID %>').value + ' does not exist');
return false;
}
else
{
return true;
}
}
function OnFailure(error)
{
}
</script>
My problem is that even after showing the alert 'File somefilename does not exist'. The whole page refreshes (i.e, postback happens)
I have a java script function which presents a countdown timer.when the timer reaches zero, I want to somehow activate a function on the server side in the code-behind.I understand it is impossible to directly call a server-side function, but is there a simple way to still fire it?I want to fire the (event-handler) code behind function: protected void ButtonFinish_Click(object sender, EventArgs e).
var _countDowncontainer = 0;
var _currentSeconds = 0;
function ActivateCountDown(strContainerID, initialValue) { _countDowncontainer = document.getElementById(strContainerID);
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I have overridden OnError method in the page:
public string script;
protected override void OnError(EventArgs e)
{
script = "alert('error');";
}
In the aspx, I have this:
<script type="text/javascript">
$(document).ready(function(){
<%=script %>;
});
</script>
I am simulating an error in Page_Load, but its not firing the alert. If I switch the code from OnError to OnLoad, it works great.
I am working with vs 2008 and C#. I am having a code behind function as follows(not complete)
protected void btnShowZone_Click(object sender, EventArgs e)
{
string setofalllatsandlongs = null;
foreach (string s in ar)
{
[Code].....
</div>In thIn the click event of the btnShowZone(in bold) i am calling the code behind method and from that i am trying to call the js function using the script manager class.
But the javascript method is not getting called.the control is not going to the js function.
I have a script manager and calendar extender on my aspx page. When I call a javascript function from my code behind page, the calendar extender doesn't work
ScriptManager.RegisterStartupScript(Page, this.GetType(), "javascriptfunction", "<script language=javascript>function();</script>", true);
OR
Page.ClientScript.RegisterStartupScript(this.GetType(), "javascriptfunction", "<script language=javascript>function();</script>", true);
So in default.aspx I have the code
<script type="text/javascript">
function validateForm()
{ [Code]....
When I call test() from javascript i want it to return false but cant seem to geta value from test.
Let's say you have a Javascript function that calls a web service method. So that webservice completes and calls a callback function, which has the result.
How do I get that result back into the original function that called the web service method? Essentially, I'm trying to "synchronize" an asynchronous call.
Update:
This is what I'm trying to do. I'm validating based on the return value of a web service.
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I am trying to call a JavaScript function from my ascx control code behind in the catch blockI have tried the below two ways but they don't seem to work.
Page.ClientScript.RegisterClientScriptBlock(typeof(string), "script", "test();", true);
ScriptManager.RegisterStartupScript(Page, GetType(), "err_msg", "alert('error');", true);
function DatalistFunction(argumentid) {
set_minimum_points_for_session = value;
SetSession(set_minimum_points_for_session);
Redeem(argumentid);
}
this is my code which i am calling on link button onclientclick event.
sometimes what happens is redeem function gets called first and then setsession function gets called. do i need to put some delay or something between the 2 functions, so that they run everytime in their own order
I have an issue in my application . When I am calling a Javascript function OnClick of Submit button, the range validators on my page doesnt work.
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