.net - File Export Not Working In Update Panel?

Oct 20, 2010

I am trying to export a file upon button click event. The structure of my app is like this.

UpdatePanel
TabContainer
Tab1

[code]...

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I have 3 upload controls ,one listbox and two button controls in page. One button control named Attach has the code to add the files to listbox form 3rd file upload control and the 2nd button control named Save has the code to save the files of 1st and 2nd file upload controls in application folder and items of listbox to database.

The issue is couldn't maintain the state of 1st and 2nd file upload controls after browsing the files to file upload controls and clicking on Attach button control to add file name to listbox which was browsed by 3rd file upload control.So i placed the 3rd file upload control, Attach button and listbox in update panel but its not working. My requirement is when clicked on save button files of 1st and 2nd file upload controls in application folder and items of listbox to database, but 1st and 2nd file upload controls will loose the files as soon as Attach button is clicked to add filename of 3rd fileupload control to listbox.

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I'm new to the world of Update Panels and i'm having a hard time figuring out how to use them properly.

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I have this code below. I can't export gridview to excel when using Update Panel.

[Code]....

My Code in exporting Gridview to excel

[Code]....

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i have gridview and export to excel button inside Update panel, the code i am using to export gridview data to excel is..

public void imgExcelExport_Click(object sender, ImageClickEventArgs e)
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[code]...

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I need to generate a PDF file in a folder inside the server, and attach it for sending a mail. If again want to send mail means I want to replace the new PDF file.

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Mar 20, 2011

I'm writing an app in which user can register. While registering the one may choose several options and according to these regiester fields are visible or not and are required or not. I came up with an idea that all fields will be in in the updatePanel and when users changes registration options I would set visibility of these fields on the server side.

It works but incredibly slow and whats more on the FF I have the given error:

The state information is invalid for this page and might be corrupted

3 checkboxes with other fields are in the updatePanel

Each field is in dl tag with runat="server>

I had to do it like that cause for "required" option I simply add css class to this dl (need in in javascript validation. If field should be visible I set visible="false" for given dl and then that field for example FirstName with title and so on isn visible after postback.

Am I doing something wrong ? Why does it take so long (~4 min on localhost) and in firefox it doesnt really work (when I use debug I think that process completes without errors on ff, I dont understand that at all :)

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Oh and I'm using ASP.Net and cant upgrade on this project.

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Nov 23, 2010

[Code]....

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Jan 31, 2011

provide the solution to the problem. must achieve the ajax type functionality for the controls of the page displayed within the iframe, the contents(button) withing the iframe are causing complete post back i have used update panel, script manger, on the main page and also on the pae displayed in the iframe even then post back occurs note i check this using the current time of day in the label. here are the codes.

default.aspx

[Code]....

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Update Panel Not Working Correctly?

Apr 24, 2010

I have added two update panels to my page. I'm trying to update the first panel but not the second. The second panel contains validation controls which seem to be kicking in no matter what I try.

<asp:ToolkitScriptManager runat="server" ID="ScriptManager" />
<asp:UpdatePanel ID="updatePnl" runat="server" UpdateMode="Conditional">
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[Code]....

I've left out some of the middle code of there is alot.

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Dynamic JavaScript Not Working In Update Panel?

Apr 20, 2010

I am working on an application where i have got, a content page within a Master Page. I have placed a gridview on the page. This gridview has three fields, one of them is TemplateFied, a BoundFiled and a CommandField, along with paging enabled in the gridview.

In the template field i am creating a dynamic javascript on RowDataBound.

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I placed a scriptmanager and an update panel, and placed the grid in it. Now my command field works only once and not more, and same is true for the javascript, it doesnt gets initilized.

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I'm working on a simple demo project so that I can learn some things about ASP.NET's AJAX capabilities. My problem is that I can't seem to get an UpdatePanel to work properly with a CheckBox inside of it. Here is the markup I'm using in my .aspx file:

[Code].....

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Fileupload Control Not Working In The Update Panel

Jan 7, 2011

fileupload control is inside a grid, When Ajax is not used its s working correctly, so as wen i use a Update panel, am getting a error in uploading my file to thr database.

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AJAX :: FileUpload Is Not Working In Update Panel

Feb 12, 2011

I am facing a problem in FileUpload controls that is available inside update panel along with CalendarExtender.

Now When I click on submit button after browse a file it is returning null fileobject value in codebehind page.

[Code]....

I dont know what is the reason behind of this problem, can you let me know what is the cause and probable solution for this.

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Oct 14, 2010

I am using JQuery tabs in my aspx page, but update panel is not working. If I do any operation in tab2, after posting back, tab1 is activated.

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AJAX :: Update Panel Within Tab Container Not Working?

May 19, 2010

I have a problem doing a partial page post back with an update panel within a tab container.

I am adding the control programmatically as follows

[Code]....

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AJAX :: JavaScript Is Not Working In Update Panel?

May 28, 2010

I have one asp.net content page and calling .js file in that content page <asp:ImageButton> onclient click event. but it is not all calling .js file

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AJAX :: Update Panel Not Working In Firefox

Jan 4, 2010

Environment used : asp.net 2008 webapplication with c#

problem : here is my code :

default.aspx
<form id="form1" runat="server">
<iframe id ="captchaframe" src="test.aspx"></iframe>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button id="Button1" runat="server" Text="refresh" onclick="Button1_Click"></asp:Button>
</ContentTemplate>
</asp:UpdatePanel>
</form>
default.aspx.cs
protected void Button1_Click(object sender, ImageClickEventArgs e)
{
Session["CaptchaImageText"] = GenerateRandomCode();
StringBuilder sb = new StringBuilder();
sb.AppendLine("$(document).ready(function() {");
sb.AppendLine(@"document.frames['captchaframe'].location.reload(true);");
sb.AppendLine(" });");
ScriptManager requestSM = ScriptManager.GetCurrent(this);
if (requestSM != null && requestSM.IsInAsyncPostBack)
{
ScriptManager.RegisterClientScriptBlock(this,
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Guid.NewGuid().ToString(),
sb.ToString(),
true);
}
else
{
ClientScript.RegisterClientScriptBlock(typeof(Page),
Guid.NewGuid().ToString(),
sb.ToString(),
true);
}
}

I want to just refresh the iframe on button click without whole page postback.so i have used update panel for removing postback and easily refresh iframe .I works in IE, but not working in firefox.

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C# - Download Feature Not Working Within Update Panel?

Mar 28, 2011

I have a Web User Control containing a FormView. The formview shows details of job seeker. I have provided a button for "Download Resume" link, so that admin/HR can download the resume. I have placed this control in an aspx page that contains the UpdatePanel. Everything works fine except Download Link.

I have given a Command on donwload link button and a function is associated with the command to start download.

Below is the code i have implemented -

[Code].....

The code works perfectly if update panel is removed but generates script errors if update panel is used.

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AJAX :: Update Panel Flicker And Not Working?

Oct 13, 2010

I want to create a searching work to fill the gridview detail acc to seach params.. When we enter text into search textbox it fills the grid, that works filne without postback. After this i have to fill the form values accroding to link clicked in Gridview. I uses the updatapanel in grid like

[Code]....

When the grid fills it doesnt fill my form... why it happens.. i used the Updatapanels multiple as well.. If i use the Updatepanel in whole.. it may flicker while filling in the form values.

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Update Panel Not Working In User Control

Nov 12, 2010

I am fixing issues in a project where I was not able to figure out a solution for the below problem. There are multiple user controls in Main.aspx page. First one is header.ascx which is added directly in .aspx page. and the others are added dynamically from Page_Init event. Basing on the hyperlink clicked from the menu on the left side of the main page, the respective user control is displayed.

Now, If I try to add script-manager/update panel inside any of the dynamic user controls, the respective user control page throws error. I have noticed that the header.ascx control is using scriptmanager. Is it creating the problem? How to handle this kind of issue?

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AJAX :: Update Panel Not Working In Live?

Sep 29, 2010

I have a button that updates a datagrid that is in an update panel and everything works swimmingly in the dev area but when i publish it it just doesnt work.

appart from that everything else on the page works as normal

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AJAX :: Treeview In Update Panel Is Not Working?

Jun 15, 2010

I am having a treeview in Masterpage,all tree items are associated with different page,when i click on any of the tree item,i the respective page should be displayed in the ContentPlaceHolder of the masterpage without postback,

i kept the treeview and the contentplaceholder in the updatepanel,still it is not working,means entire page is posting back to server

Here is my code

<form id="form1" runat="server">
<div>
<table>
<tr>
<td valign="top">

[Code]....

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