Web Forms :: HiddenField Value Not Refreshed When Using Updatepanel For TreeView?

Jan 10, 2011



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AJAX :: How Another Updatepanel Can Be Refreshed Everytime When A Particular Updatepanel Is Refreshed

Aug 13, 2010

I am using two Updatepanels in ASP.NET AJAX and as soon as there is some event in first updatepanel, it will get refreshed at that time I want my second Updatepanel getting refreshed too. How can I do that ?

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AJAX :: Image In Updatepanel Not Refreshed?

Jun 14, 2010

I'm writing a small photo album application and having some problem of refreshing the original images in the updatepanel. I have two updatepanels, one on the left contains a gridview to display image thumbs, and the other in the right contains an image control. When click on the thumb on the left, the file name of the image on the right will be inserted using the CommandArgument value. However, when I clicked the thumb, nothing happened. Instead of refreshing an image, I put a label and it worked fine. The following is my aspx side code and code behind.

// code of aspx


// code of aspx.cs


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AJAX :: UpdatePanel Causes The Whole Page Refreshed?

Mar 1, 2011

I have an asp UpdatePanel, an asp panel, an asp timer, and an asp label on my web page, as you know the whole idea of updatepanel is trying to implementing partial page rendering mechanisem, however, it is not the case in my scenario, here is the code:


and on the pageload event, i assign:


strangely, the labl1 does update the time without causing the whole page post back, but the panel does cause the whole page refreshed, and the asp panel contains asp buttons and those buttons are generated dynamically by code behand c# file, am i missing sth here or the nature of asp:panel will cause the whole page post back?

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AJAX :: Label Not Getting Refreshed When Working With UpdatePanel

Aug 23, 2012

I have an extra asp.net label to show success or error message after the add, update or delete a row, but using the BlockUI, I am unable to do it, cause the label is somehow not refresh even if i put it under the BlockUI.

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AJAX :: How To Update Treeview Using Updatepanel

Jul 5, 2010

how to update treeview using updatepanel?I am binded my treeview using xml datasource,periodically the datasource was updated,so i am used updatepanel in treeview but, it is not updating while changes came.when i refresh that page ,it is update

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AJAX :: TreeView Does Not Work With The UpdatePanel In .NET 3.5?

Mar 16, 2010

I have read several post on the TreeView is not/partly working with the UpdatePanel, but none of them mention that an update (triggered by a timer) causes creation of multiple javascript functions in the HTML header. In Mozilla Firefox this a memory leak. I have created a test webapplication to demonstrate the issue we encounter.


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Web Forms :: Handling TreeView Error Detected By System.Web.UI.WebControls.TreeView.LoadPostData?

Mar 1, 2011

Periodically a rash of occurrences of the following error happen. I believe they're the result of hack attempts. Whether that's the case or not, my question is how can I handle the error? I want to avoid unhandled exceptions. The TreeView control is just
a standard .Net TreeView control, not a custom one. If you suggest a code solution, please code it in VB.Net as that's what I'm using.

Message: Input string was not in a correct format.

Stack Trace:
at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.Web.UI.WebControls.TreeView.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.WebControls.TreeView.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection)
at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

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Web Forms :: Asp Hiddenfield Values To Other Pages?

Jun 15, 2010

I want to send some data to other pages using asp hiddenfields.Page1.aspx:

<form id="form1" runat="server">
<asp:TextBox ID="txt" runat="server">


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Web Forms :: Treeview .each Node In A Treeview Will Need To Display Different Page?

Nov 15, 2010

I have a treeview which will be generated dynamically which need to be displayed on left side and when user clicks on a node it need to open a page on the right side of the same page. and each node has different aspx page. so whenever user selects a node the page details should be displayed on the right side .we can use an iframe on the page which will display the different pages clicked on the node.Is there any alternative i can use to display different pages based on the user selection on the right side without using iframe.

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Web Forms :: Drag And Drop TreeView Nodes Of TreeView?

May 7, 2015

Code to drag and drop a TreeNode to another control or tag such as Div or even another TreeView.

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Web Forms :: Store A String Array In A Hiddenfield?

Mar 8, 2010

I would like to store an array of string or a List<string> in a Hiddenfield. You can c the code I am trying below :

int[] ListEmails{
get {
if (hdnEmailBody.Value.Length == 0)return
new List<string>();return
hdnEmailBody.Value = ?

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Web Forms :: Access Value Of HiddenField In Static WebMethod

Sep 20, 2015

I am developing a application in which I return the value a it will fine it give me value during debug when I put cursor on .value it give me HiddenField1.Value 140 value but how I get this value into jquery  code I will try a code but every time give me empty value means this value can’t assign to grid view following my whole code

var HiddenField1 = a;////////////////////////C# code where give me value of a
HiddenField1.Value = a.ToString();

My hidden field and Function to access the hidden field value

<asp:HiddenField ID="HiddenField1" runat="server" value="" />
Method to access the hidden field value in Jquery code.
var HiddenFieldcheck= $('#HiddenField1').val();

but every time it give a empty value how I solve it ...

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Web Forms :: Website Page Getting Refreshed Automatically

Aug 18, 2010

I have deployed my application in the test server, and did the settings correctly, but my websites pages are getting refreshed automatically in less than 2 mins.

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Web Forms :: Webform Page Does'nt Get Refreshed On Some Machines?

Jul 23, 2010

I have tweaked some button colors on a webform after updating those pages on server where iis is.From my local machine i can see the updated colors of button.But in some of the other users machines they still see the old webform.even though they refresh there IE.but when they use firefox they can see the new changes.What is wrong with IE, even after deleting cache still it is showing old webform.

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Web Forms :: Fileupload Control Text Refreshed?

Nov 11, 2010

I am using the file upload control in my page i upload image .. path available in the file upload control after i selected the drop downlist for different action at that file upload control path refreshed.. wht shoul i do?

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Web Forms :: Dynamic Menus Not Being Refreshed Between Users?

Oct 18, 2010

I have an ASP.Net 3.5 application with a menu. The menu is set to an xmlDataSource. The xmlDataSource is given the menus for the user as a dataset. The xmlDataSource uses an xsl transform file.Here is the code behind:


My problem is, when another user logs into the system, he/she gets the previous user's menus. This is based on time somehow, because if you wait long enough after another user has left a page, you'll get the proper menus.Could it have something to do with page caching? Is there something I'm missing with menus?

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Web Forms :: Inline Bind Hiddenfield Or Textbox Field

Dec 17, 2010

I have been at this for two weeks now without any success but I know I have to get a solution to move forward with my design. Is there any way to bind data from a SQLDataSource to a Hiddenfield or Textbox WITHOUT binding via the data controls like gridview, formview, datalist, etc. I do not want to use any of those controls. I need to do inline binding. Please provide the working code example. The hiddenfield or textbox would be named eid. The SQLDataSource name is GetDataEid. Again, if you reply and you submit code I can try please provide the full working solution. These do not work. They have already been attempted:

<asp:HiddenField ID="HiddenField1" runat="server" Value="<%#Container.DataItem("FieldName") %>" />
<input type="hidden" id="hdnId" name="hdnId" runat="server" />

and write the following code in your page load method

asp:HiddenField ID="hid" runat="server" Value='<%#Eval("column name") %>' />

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Forms Data Controls :: Hiddenfield Not Hiding In Gridview?

Jul 19, 2010

<asp:HiddenField ID="HiddenFieldTime" runat="server" Value='<%# Bind("Time") %>' Visible="False" />

When I load the page, it shows up as a blank cell. Is there anyway to hide it completely as it looks out place?

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Web Forms :: HiddenField And Viewstate Not Accessible During Page_Init Method?

Nov 26, 2010

I have a GridView and a TabControl. On click on the row of grid, I store the EmpId in a hiddenfield in javascript. Now in Page_Init, I am trying to load a usercontrol for a EmpId stored in hiddenfiled. But I am not able to access hiddenfield value in the Page_Init. It display empty. If I have to load the usercontrol during Page_Init, then I have to access the HiddenField value first and it is give problem.

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Web Forms :: Set A Value In A Hiddenfield In Codebehind Of A Content Page And Then Retrieve It ?

Feb 14, 2011

I have a hiddenfield in my mater page declared as:

<asp:HiddenField id="hf1" runat="server" value="0" />

I have a Page_Load subroutine in my vb codebehind file that sets a value for hf1 as folows:

Dim hf1Ref as HiddenField = Master.FindControl("hf1")

hf1Ref.Value = "test"

In my pageLoad() Javascript file of my master page I simply try to do the following.


I get "0" for the hf1Value.

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Forms Data Controls :: Finding HiddenField Value In Datalist?

Sep 17, 2010

Im trying to figure out what the value is from a specific hiddenfield value when selecting a specific row in a datalist.....

I tried to find an example on the net....but today I seem to find all the wrong codes...

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Web Forms :: How To Prevent Postback When Page Is Refreshed Or F5 Pressed

Mar 22, 2010

I need to display a popup dialog box when an Aspx page first loads. I do this inside of the page load method
with PageIsPostBack.

How can I prevent the popup from being displayed though when the user hits the refresh button or F5 button.
Or the back button?

// Dispaly popup here

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Web Forms :: ReportViewer: Drillthrough Caused Whole Page Refreshed

Feb 16, 2011

I have a Reportviewer control linked to Report1.rdlc with a matrix with Drillthrough activiated.When I click the "+" buttons to drill through, even I enclosed the control with Penal etc it still caused the whole page refreshed which is annoying. The same Panel code works well on other ASP.net controls on page on running.

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Web Forms :: Website Page Refreshed When Uploading File

Sep 17, 2010

I am using Standard control FileUpload asp.net to upload a simple file to server. When I select a file and submit, the page is refreshed to the file is uploaded to server. Then I using a UpdatePanel to perevent the refresh. But in this way the file is not uploaded and FileUploaded.HasFile property return false. What can I do?

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