Web Forms :: Checkbox Checked State Not Persisting In Visual Webpart?

Oct 19, 2010

I've created a visual webpart .My user control is gridview,in which one of the column is checkbox.The checked state of my checkbox within a gridview get disappeared during postbacks. I want to maintain the checked state.

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Suppose I have created a spgridview with the following code.


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Persisting Checkbox State If Browser Back Is Clicked After Postbacks?

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I've a checkbox with autopostback=true. If i check the checkbox the postback occurs and changes a label text. But if i click back in the browser the checkbox is not returning to its previous unchecked state. How can i bring back its state?

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I have a GridView that I was previously populating via an ObjectDataSource, and this code was working perfectly (ie, when the checkbox was checked Checkbox.Checked = true):



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Forms Data Controls :: GridView : Checkbox : Checked Value Is Still False After Checked The Checkbox?

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How bind the data through checkbox if checkbox checked is true

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I have read through a number of posts but cannot find solution to my requirement. I need

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I'm building a web application that has a particular model representing some events. Users need to be able to add N number of people to a given event. Choosing people is handled by a partial view.

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I wish to persist a class object across postbacks by using a single session variable/object/whatever.

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Being new to programming I am thinking that I can store the dataset in the session but that would slow down the response time because I the methods would have to be called to refine the data - or maybe I can just store the entire class object in a session.

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got [URL] - two separate apps in IIS.

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Persisting State On A Master Page's Hierarchical List?

Feb 17, 2010

I'm writing an ASP.Net application (no AJAX, but maybe) and there's a requirement to have a list of companies graded under a traffic light system. I intend to have these in a collapsible hierarchical list on the Master page, e.g. Red expands to show companies, and then companies can be further expanded.

how can I keep the expanded list in the same place, with the same content visible, between page loads?

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State Management :: Persisting The Cookie Across Development And Production Server?

Jan 2, 2011

I am using this code to pass variables from ASP.NET application to HTML Application:


The above code is run from page_laod event, and I am making some development changes on the Development Machine (say

After the ASPX page is loaded, and I debug the javascript in the HTML (F12 under IE8), and can see the Cookie is found in the browser.

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It seems to me that Cookies will persist only on one IIS Server, and will not be global.

Question:How I can persist the Cookie on the Client Machine regardless of the the Server Machine ?

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Persisting Session State Via Multiple Request Using JQuery $.ajax()?

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just been trying to recieve the session value from multiple jquery ajax requests on the same domain name. i think i understand that each request is kind of a virtual browser request so the session is mutally exclusive to each request, but there must be a way some how, has anyone solved this. Basically this is what im trying to do:

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Persisting Dynamically Loaded User Controls In View State?

May 13, 2010

I have a simple user control containing two text boxes which I am adding to placeholder on Button Click event. I am storing the number(count) of clicks in View state and running a loop using count to create all previously added user control. I am also adding IDs to each User control (appending "UC" and count). I have also checked in view source the ids are same each time they are created. I have another button which basically does an post back. I have EnableViewState enabled ="true" in all controlls all the way up to Page Level. My problem is that User Input does not persist on postback. Should this not be happening automatically for me?

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State Management :: Persisting DropDown List Attributes Across Page Postbacks?

Oct 12, 2010

how can DropDownList attributes be persisted accross page Postbacks?


DropdownList1.AutoPostBack = True

On Postback the attribute is no longer available (ie. attributes.count=0).

I tried persisting using the code below, but was unsuccessful:

Before PostBack: ViewState.Add("DDL","DropdownList1")
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This generated the error: DropDownlist is not marked as serializable.

I than tried:

Before PostBack: Session.Add("DDL","DropdownList1")
On PostBack: DropdownList1 = Session("DDL")

This did not err but attributes were still not available.

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State Management :: Dynamically Loaded Controls In Init But Viewstate Not Persisting

Jan 20, 2011

I read this article first to try to solve this issue, but I am already loading the controls in the Init phase of the page, yet viewstate is not persisting. Any ideas as to why? (Of note is that this is for a custom module in DNN and I do have some AJAX update panels on the page, though this section is not within an update panel, for what it's worth.)

As an overview of what I've got:

1. LoadControl.ascx - based on reading query string parameters, determines whether to load the master or the detail .ascx.
2. Master.ascx
3. Detail.ascx

In my master control I dynamically load either a master or detail sub-control in the page_Init. The detail page has a treeview control and then uses a multi-view control to display the panel associated with the depth of the node selected on the tree. On the panel being displayed I have a cascading ddl within a detailsview control which initiates a postback to select the child ddl based on the parent ddl selection. However, when the page refreshes after the postback, both ddls have resorted to their default selection.

What is interesting however, and I just realized this as I am typing, is that the Treeview is populated when the page comes back from the postback, so that is only possible if viewstate is being persisted right? (See the page_load code and you'll see that Call PopulateRootLevel(intTreeUserID) which populates the treeview, is not called on postbacks....hmmm.

Any ideas as to why the treeview maintains viewstate but not my ddls???? But though the tree is populated, I do have to explicitly select the node again and set the panel that the detailsview control is on to visible again too....

Here is the dynamically loaded control code:


And in the Detail.ascx page load I've got:



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Web Forms :: Checkbox Checked In Code Behind?

Apr 6, 2010

Im having a datagrid which consist of checkbox.



Even though im checking the checkbox im not the checkbox checked in code behind.

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Web Forms :: Why CheckBox Is Not Getting Checked On OnCheckedChanged

May 14, 2010

I have a CheckBox field inside a Formview.

<asp:FormView ID="_fvApplicant" runat="server" DefaultMode="Edit" OnItemDeleting="ApplicantItemDeleting" Width="100%" DataSourceID="_dsApplicant" ondatabound="ApplicantFormBound">
<asp:CheckBox ID="_chkSuitable" OnCheckedChanged="test" AutoPostBack="true" CausesValidation="true" runat="server" Checked='<%# Bind("Suitable") %>' /></td>

In my Code Behind in test method I am trying to set the checked to true, but in the ApplicantFormBound event when i debug it is never true...any reasons why? Basically I want to set the Validator to true when checked.

protected void test(object sender, EventArgs e)
CheckBox vld = (CheckBox)_fvApplicant.FindControl("_chkSuitable");
vld.Checked = true;
protected void ApplicantFormBound(object sender, EventArgs e)
var chk = (CheckBox)_fvApplicant.FindControl("_chkSuitable");
if (chk != null)

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Web Forms :: Checked Attribute For Checkbox

Mar 5, 2013

I have House_info table in database that have Pay column

I have one checkbox in  admin.aspx page that I bind it from database

I want if there was data in pay column checkbox.cheked=true else checkbox.cheked=false

so in behind code I wrote below code

SqlCommand _cmd = new SqlCommand("ViewSreg", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
SqlDataReader _dr = _cmd.ExecuteReader();
while (_dr.Read())

[Code] ....

But in both condition if there was data in Pay column Or there wasn't any data in Pay column it checked checkbox. I mean in both condition it is CHKV.cheked=true

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Data Controls :: Check Uncheck All CheckBox In Child (Nested) GridView When Parent GridView CheckBox Is Checked Unchecked?

May 7, 2015

when i checked the checkbox in parent gridview, all checkbox in child gridview will be checked.

how can i select the checkbox of child gridview checkbox in the when i select the checkbox from the parent gridview?

code behind
protected void OnCheckedChanged(object sender, EventArgs e)


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Web Forms :: Deployed Project Not Showing Webpart Verb Tool Bar (minimize, Close Buttons Of WebPart)

Jan 4, 2011

I am just started development in ASP.NET.

I have created one sample application for WebParts. It is working fine when I run it from Visual Studio or local environment.

But when, I have publish file in IIS virtual directory (in my PC or same PC) at that time it is stop showing Verb tool bar (minimize, close buttons of WebPart).

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