Javascript - Response Object Not Returning Excel Stream In Update Panel?

Oct 11, 2010

I am generating an Excel file upon a click of a button in an update panel. It is throwing a parsing error.If I keep the button outside the update panel it is working fine. Why isn't it working in the update Panel?

Response.ContentType = "application/vnd.ms-excel"
Response.AddHeader("Content-Disposition",
String.Format("attachment;filename={0}", filename))[code].....

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Asp.net - Change Javascript To Update Panel

Apr 2, 2012

I have JavaScript that works excellently but I need to change it to Update Panel and I can't get it to still work properly. What I want it to do is if it selects 1 in the first dropdown, pick c in the second dropdown. I am using asp.net vb.

[Code]....

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Execute Javascript From Inside Update Panel On Every Refresh?

Mar 24, 2011

I have an aspx page which is made of 3 user controls (ascx). I have an update panel wrapping the 3 user controls like this:

<asp:UpdatePanel ID="UpdatePanelWrapper" runat="server">
<ContentTemplate>
<uc1:UserControl1 ID="UserControl1" runat="server" />

[code].....

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Reload An Update Panel Onclient Side Using Javascript?

May 27, 2009

I have a gridview button that I programmatically created and I want to load an update panel on the client side with the sent data. I have a hidden value field that gets its data on the click of the gridview button and the dropdownlist in my updatepanel depends on that value.

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C# - Stop AJAX Update Taking Place In One Update Panel From Another Update Panel?

Sep 5, 2010

We have two update panels on our webpage. Now first update panel is having button cancel. While second update panel is having a file upload control.Now if the user uploads a file that is going to upload in about 2 mins, and in between, say after 30 seconds the user clicks the cancel button, the upload taking place in update panel 2 should stop.

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Asp.net - Get Error When Trying To Write Response Stream To A File

May 28, 2010

I am trying to test a rest webservice but when I do a post and try to retreive the save the response stream to a file I get an exception saying "Stream was not readable." What am I doing wrong?

[Code]...

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Process The Response Stream From A Webpage That Displays A Video?

Nov 28, 2011

[Code]...

Above is the response of the page I am trying to get if I enter the URL: However, the program just crashes with the following code (i.e. never even displays final - meaning stream is still going on) I think that it is streaming the video, in addition to the source- which I do not want to happen How can I retrieve this source?

[Code]...

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ASMX Call - Returning Response Header As XML Instead Of JSON

Dec 29, 2011

My ASMX call is returning Content-Type = text/xml; charset=utf-8
I am using ASP.NET 3.5 and jQuery.Ajax. Have added these things are per numerous suggestions from Stack Overflow. I have done these things

Done this at web.config
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false"
type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
[Code] .....

But whatever I do, the response header is still of type xml. What part am I missing here?

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Asp.net - Call Javascript Just Before A Response Redirect?

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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Javascript Does Not Work With Response.redirect

Jul 9, 2009

[code]I have the above code in my aspx.vb file but the Response.write script doesnot work it directly redirects the page.but if i remove response.redirect the script works fine.

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Javascript - Using Jquery To Pull From Ajax Response

Jun 15, 2012

[URL] Response when viewing URL: {"Status":"OK","Message":"0","Info":"(none)"} Using JQuery how do I pull from that? I get how you do POST and sending but little lost has to how to pull from that. Do I use GET? Am I doing something like $.get("URL HERE"...?

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Javascript - Returning XML From Webmethod?

Jul 30, 2011

I am using an ajax PageMethod to call an asp.net webmethod. From there I'm trying to pass a lot of XML back to a callback javascript function.

Currently I just convert the XML into a string and pass it in that format. But it seems that if the string is too long it causes an error.

[Code]...

So my question is: Is there a better way to pass the XML from VB to javascript, or a way to allow large strings to be passed without error?

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Javascript - Response.Redirect AFTER Call To JS Alert Or Confirm?

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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Javascript - Writing Back A Function Through Response.Write()?

Apr 12, 2012

I am trying to return a javascript function using response.write in an aspx page. The problem is that the function i am returning has lots of quotes and they are conflicting with the repsonse.write syntax. Here is a sample code:

Response.Write(" If hello.StartsWith("H", StringComparison.InvariantCultureIgnoreCase) OrElse hello.StartsWith("W", System.StringComparison.InvariantCultureIgnoreCase) Then")

This is giving me a problem as the quotes inside are cutting off the response early. Is there a better way to do this?

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Response.Write() With Javascript Doesn't Work Properly?

Mar 24, 2011

I'm having a problem with this code:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
clave = Request.QueryString("cve")
If clave = Nothing Then

[code].....

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Javascript And .net Returning Incorrect Results?

Nov 17, 2010

We are noticing this occurs BOTH in javascript and in VB.net 2.0. So basically both in server side and client side code. Basically if you run this equation 975328 - 153279.43 you get the following answer 822048.57000000007. However, if you run 975328 - 153279.4, 975328 - 153279.433, or 975328 - 153279.5 everything is returned correctly. WHY the system calcuates the 975328 - 153279.43 with an answer with 11 decimal places? Not to mention adding the 7 in the 11th decimal place, thus making the equation answer incorrect.Of course I know I can trim, set the answer to appropiate decimal places, etc., etc.the above is proven by just entering the equation into the immidiate window, thus ellimnating varibables such as object types, etc., etc.

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Update The CONNECTION Property Of An EXCEL 2007 QUERYTABLE() Object To Point To The New DNS Programmatically?

May 28, 2009

Here's my VB code.

[Code]....

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C# - JavaScript : Returning NULL In IE But Working In FireFox?

Jun 9, 2009

I have this function correctly linked in an external .js file...

function SubmitAge(age, UpdatePanelID, HiddenAgeID) {
$get(HiddenAgeID).value = age;
__doPostBack(UpdatePanelID);
}

and am calling it like this from an onClick of an a href="#" ... html tag (tags removed, please scroll right as stackoverflow has the greatest difficulty in displaying simple content, 7th display related edit, thanks stackoverflow)

a href="#" onclick="SubmitAge(24, 'ctl00_MainContent_arFrom_upAgeRange', 'MainContent_arFrom_HiddenAge')" runat="server" 24 /a

yet, i am getting this error, and its being called on the first line of the SubmitAge function (line with $get(HiddenAgeID)... etc...)

Error:Microsoft JScript runtime error: 'null' is null or not an object

i've copied and pasted my WATCH windows in visual studio .net (vs2010 beta 2 using vb.net & c#) while the execution breaks inside teh SubmitAge .js function...

age 53 Number
UpdatePanelID "ctl00_MainContent_arTo_upAgeRange" String
HiddenAgeID Undefined identifier Error

Why on earth is HiddenAgeId, clearly passed just like UpdatePanelID, is returning an "Undefined identifier Error"???

edit: Update: turns out it works perfectly (as it should) when i load it up in FireFox, but has the resulting error in Internet Explorer, this is not a browser compatibility issue, it should also work in IE, but it doesn't!

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Javascript Checkbox Allways Returning False

Apr 4, 2012

I've read a few articles talking about checkboxes always returning a false state,[code]I though it was due to the second input that it was always returning a false state.

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Javascript - WebMethod Not Working When Returning Relatively Large String

Dec 9, 2011

I am using Virtual Basic with ASP.NET in Visual Studio 2008. I am using Webmethod to communicate from/to the server with the client. Data can be queried and returned in small amount, but when I try get a relatively large amount of data, it's returning me a Server 500 error. My data is 226561 character long, so it's not that large, but it's relatively larger than my other working testing set, which are about 10k character long.

JavaScript:
PageMethods.my_func("context", success);
function success(result, userContext, methodName) {

[code]....

Is there anything I can change to increase WebMethod returned string length limit? Is there even a length limit or is it some other problem I could not see?

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In .NET When Get A Response Stream From The Server What Type Of Encoding Type Should Use?

Dec 22, 2010

In the following example I m getting a response from the server; however do I need to set ASCII or UTF8 encoding type ?

Dim objURI As Uri = New Uri(URL)
Dim wReq As WebRequest = WebRequest.Create(objURI)
Dim wResp As WebResponse = wReq.GetResponse()

[code].....

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Asp.net - Make Update Panel Not Update Whole Page?

Oct 16, 2011

I have an update panel that has a table in it with 4 images. Every few seconds a new image is shown. All this works but when the image changes the whole page is refreshed. I am using Visual Studio 2008 and VB.Net 3.5.I only want the images in the updatepanel to refresh. How can I do that?

UpdatePanel Code:
<asp:UpdatePanel runat="server" ID="upImgSwitch" UpdateMode="Always">
<ContentTemplate>
<table height="200px" width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>

[Code]...

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.net - Get The ClientID Of Nested Panel Control In Masterpage Using Javascript?

Oct 27, 2010

This is the control structure

ContentPlaceHolder
Wizard
Panel

I am using setTimeout to display the panel after x minutes.

How do I get the ClientID of the panel?The line of javascript needed is something like:

setTimeout(displayExtendSession('<%= ExtendSession.ClientID %>', 600000);

[Code]...

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VS 2008 Get Response From Serialport To Update Property?

Feb 19, 2011

There is a problem in my project. It has a class with several properties. When I set the property, it send command to device through serialport. But the problem is when I get the property, it need to send request command to device, and device return value back. How can I update the property?

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Reading Cookies From Response Object?

Mar 11, 2010

I have a program that will download files from a company website given a list of links. The site requires authentication, and I do have code that will set the authentication cookie in the request header. I get the authentication cookie from a Perl script we have. What I would love to do is have my vb .net program get the authentication cookie based on my username and password. The perl script goes to the following link:

[URL]

The it reads the cookie out of the response. Here is the code I have, but my cookie count always comes back at zero. :(

Dim cookieJar As New Net.CookieContainer()
Dim cookie As New Net.Cookie
Dim req As Net.HttpWebRequest

[Code].....

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Get Number Of Rows Inserted Response From Dataadpter.update?

Dec 8, 2010

I am doing a project, uses vb.net as front end, ms sql as back end.my application insert bulk of rows from a datatale to the table in server.it uses dataadpter.update to send all the rows to the server.

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Write Some Javascript Code In Response.write When SqlDataSource1_Deleted?

May 23, 2012

i have a notification j-query plugin .. i taste it in my page (working 100%)but when i want to use it in a event SqlDataSource1_Deleted with the response.write method it does not work

Protected Sub SqlDataSource1_Deleted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles SqlDataSource1.Deleted
Response.Write("<script type='text/javascript'> showNotification({message: 'This is a

[code].....

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C# - Update Panel Doesn't Seem To Update?

Oct 20, 2009

I have a button inside of a gridview's template field. Onclick i want to the button to open up a modal popup while force updating the updatepanel and formview inside the modal popup because the formview's datasource depends on a hidden field in which i am setting after click also.

[Code]...

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Asp.net - Returning Object From A Function?

Feb 8, 2012

If an object is created inside a function and the function returns that type of oject how is the memory handled.

Example:

Public Function GetEmployee(employeeid as integer) as employee
Dim oEmployee as new employee
oEmployee.FirstName="Bob"

[code]....

Does the variable that receive the object still a pointer to the memory location that was used inside the function?What about when you do a oEmployee2=oEmployee.Is oEmployee2 just a pointer? And any changes to oEmployee will now affect the other. Just trying to understand it from a memory perspective and how that scope works?

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C# - Read From A Url Into A System.IO.Stream Object?

Aug 3, 2009

I am attempting to read from a url into a System.IO.Stream object. I tried to use

Dim stream as Stream = New FileStream(msgURL, FileMode.Open)

but I get an error that URI formats are not supported with FileStream objects. Is there some method I can use that inherits from System.IO.Stream that is able to read from a URL?

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