Web Forms :: RadioButtonList Loses Value On PostBack Button Click
May 7, 2015
radiobuttonlist Value is not saved when saving on where the problem is?
<form id="form1" runat="server"> <div> <asp:RadioButtonList ID="rblShippers" runat="server"> </asp:RadioButtonList> <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" /> </div> </form>
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Data;using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) {
string strConnString = "data source=.;initial catalog=saeed;integrated security=true"; using (SqlConnection con = new SqlConnection(strConnString)) {
[CODE]...
View 1 Replies
Similar Messages:
May 3, 2010
I have a set of radio buttons for "yes" and "no" values which have a name="choice". "yes" is checked by default. They're both runat="server". I read the choice on postback like below. It works perfectly fine as long as the validation doesn't fail. For example, if I select "no" and validation fails on postback, I still see "no" selected. But if I submit the form after correcting everything, the value read is "yes" on server side! Is this a bug in .net, and if so, how do i fix this?
foreach (string key in Request.Form.AllKeys)
{
if (key.EndsWith("choice"))
return Request.Form[key] == "yes";
}
View 1 Replies
Apr 30, 2010
First time using an Accordion Control and I'm having some trouble with the CSS, as per the subject description. I have only created the headers so far and assigned some basic CSS to them. Right now that CSS is only there to limit the width (and therefore clickable area) of the header to the width of the image that the header is represented by. This works fine until I click on one of the headers and then its width property is lost. Same for the other headers, they are fine for the first click and then after that they lose their style. There is no postback caused by selecting a header so this is not the reason that the CSS is being lost.
Here is my html:
[Code]....
View 1 Replies
Mar 7, 2012
When I click the button the values of my label and texbox become null. Here's my code not working loses values when button is click
Code:
protected void Page_Load(object sender, EventArgs e)
{
string bid_id = Request.QueryString["bid_id"];
Label1.Visible = false;
if (!IsPostBack)
[Code] ....
Code:
protected void placeBid_texbox_Click(object sender, EventArgs e)
{
if (User.Identity.IsAuthenticated)
{
SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ConnectionString);
[Code] .....
View 15 Replies
Feb 25, 2016
I used this Read DataTable values one by one for making Quiz (only one question on page). But now I want use random for it. Like this: Refresh / Sort / Rearrange RadioButtonList items (options) on Button click in ASP.Net
How I can solve this?
View 1 Replies
Dec 29, 2013
how to reset radiobuttonlist selection and a textbox in a updatePanel after submit?
View 1 Replies
Jul 30, 2012
How to clear radiobuttonlist selected value if textbox value is present/selected and viceversa(i.e should clear textbox value if radiobuttonlist has selected value) before clicking the button?
<asp:Button ID="Export" runat="server" Text="Export" OnClick="Export_Click" />
<asp:RadioButtonList ID="RBL1" runat="server">
<asp:ListItem Text="All Pages" Value="AP"></asp:ListItem>
<asp:ListItem Text="Current Page" Value="CP"></asp:ListItem>
</asp:RadioButtonList>
Select Top<asp:TextBox ID="TB1" runat="server" Width="25px">
</asp:TextBox>
View 1 Replies
Oct 21, 2015
I want program test for student exam. One Question with five answer. For example.
Question
The capital of India.
Answer
A) Dushanbe
B) Moscow
C) Delhi
D) Kabul
E) Tokyo
I have many question with answers. When I define correct answer. Program generation always correct answer. In this question correct answer letter C. I want every time program automatic change.
Out:
A) Delhi
B) Moscow
C) Dushanbe
D) Kabul
E) Tokyo
View 1 Replies
Apr 29, 2010
I find a special circumstances as follows:
My web form contains a postback button. The button will postback and call a server-side method. The method will process something that may spend about 20 seconds. However, user may try to click the button several times within the waiting period. The sequential clicking may cause the first running method incomplete and stop, since the second click postback will dominate the method and start again. How can I solve it?
PS: It can not use client side script to disable the button, because it requires to use some server-side validation within the method.
View 5 Replies
Mar 24, 2010
I have a custom radiobutton and it renders fine but loses state after postback.
How can it be modified?
[Code]....
View 1 Replies
Sep 13, 2010
I placed a RadioButtonList inside a Formview control.And from DataBound event handler oformview ,RadioButtonList is binded to the datasource .Now my problem is after selecting a value from radiobuttonlist and I click any button,the radiobuttonList get unchecked and lose the selected value .How can I avoid this.
View 1 Replies
Sep 4, 2010
I am using Crystal Report on my ASP.NET Fw. 3.5 project. My report contains 100+ pages. When I click on next page button on crystal report viewer control my whole page gets postback to server and then second page appears. This take same time when first time report gets loaded.
View 2 Replies
May 4, 2010
Background: I am customizing an existing ASP .NET / C# application. It has it's own little "framework" and conventions for developers to follow when extending/customizing its functionality. I am currently extending some of it's administrative functionality, to which the framework provides a contract to enforce implementation of the GetAdministrationInterface() method, which returns System.Web.UI.Control. This method is called during the Page_Load() method of the page hosting the GUI interface.
Problem: I have three buttons in my GUI, each of which have been assigned an Event Handler. My administration GUI loads up perfectly fine, but clicking any of the buttons doesn't do what I expect them to do. However, when I click them a second time, the buttons work.
I placed breakpoints at the beginning of each event handler method and stepped through my code. On the first click, none of the event handlers were triggered. On the second click, they fired.
Example of Button Definition (within GetAdministrationInterface)
[Code]....
View 2 Replies
Sep 11, 2010
I'm having a little problem with my file uploading. Does anybody know how to maintain the value in the FileUpload control between server posts?
I have a form which, among other things, uploads a file. I am using an ileUpload control (created dynamically) to let a user browse their PC for a file and then using the SaveAs method to upload the file to the server.When I'm selecting a file and Click on Next button for processing then selected file is lost.
Same is happening with me with HtmlTextArea (dynamically generated) , the problem was that I was not again re-initializing the controls after postback. What I did is re-initialized it in Init method of placeholder (as I have created/placed all dynamic controls in placeholder ).
But this thing is not working for fileupload control. I found solution in one of the forum is that "use hiddenField Control to transfer the selected file from the client to server"but this mechanism will only help to retain the name of file
in a hidden variable and the FileUpload1.PostedFile.SaveAs(filename) will not work bcz of absense of object (fileupload1).
here is code:
[Code]....
I have done almost the same in different test project , it works . I dont know whats wrong?
[Code]....
How to correct this?
View 8 Replies
Jan 28, 2010
I am creating a control that inherits from the RadioButton, so that I can set the GroupName property manually. Everything is working okay apart from the fact that when the page posts back, the RadioButton becomes unchecked if it has previously been checked. This is the first time I've tried inheriting from controls, so must be doing something really silly. I would welcome anyone helping me to improve my code so that the control's Checked value persists through postbacks. I am causing a postback using a button, not the actual RadioButton itself, if that makes any difference. Here is my code:
[Code]....
View 13 Replies
Feb 1, 2011
I have the following simple code:
[Code]....
So when i select "Yes" from the first drop down, the "hiddenDetail" label becomes visible and when i select "No" from q1 the "hiddenDetail" label becomes invisible.The problem is that because i am using AutoPostBack when you select "No" the "hiddenDetail" loses its children (i.e. the label inside it) which is obvious why but i am wondering, is there anyway i can make the "hiddenDetail" invisible (sort of like display:none in style) in VB without losing its children. Or is my only option to work with this in
View 9 Replies
Nov 12, 2010
when i click on button then postback happen but i stopped the postback. my code is follows.
[Code]....
here ShowDiv() function return false. another thing i notice that when i comment all the line in function ShowDiv() then postback is not happening. i just do not understand if i generate a div and add to page from javascript then why postback happening. tell me the solution to avoid postback when i will generate div from any function.
View 2 Replies
Mar 24, 2010
I dont know what happened but none of my buttons or linkbuttons causes a postback anymore. I have dragged a few updatepannels on the page but the linkbutton concerned is not enclosed within an update pannel. when I click it there is just no postback happening anymore. I set the debugger at Page_load but...its not reached. I used firebug to analyse the http requests. there is none. its like those are not considered buttons anymore.
View 5 Replies
Nov 11, 2010
I have created a user control which has a form and 2 buttons; Save and Submit. Both buttons are created at design time. Users can enter details in the form (e.g. title and description of an item) and click Save which does some server-side processing to create an 'Item' then clears the form.
The buttons:
[Code]....
[Code]....
And a placeholder to add dynamically created controls:
[Code]....
I am saving the Items in ViewState and dynamically creating a LinkButton control for each Item which allows the user to edit the item:
[Code]....
[Code]....
Now, when I test this in Visual Studio 2010, it works fine;
1. Enter Item title and description in form
2. Click Save
3. Save button triggers postback and onClick event code is run
4. ViewState list is displayed below the form
When I create a local IIS web site for testing, the postback on the Save button only works the first time I click it. Postback is false on the second click and the page reloads without running the onClick event code.
View 3 Replies
Feb 21, 2010
I have a gridview with columns 'Edit', 'Delete', 'View Results' and other details. The 'Edit' column opens a modal popup to edit the record. The 'View Result' column is in a login view and this column is only visible to users belonging to the group 'Manager' as below:
[Code]....
When the page is first loaded, the hyperlinks are displayed correctly. however, after editing a record and saving the changes, the 'View Results' column loses the hyperlink.
I tried creating a temp hyperlink column outside a loginview control and this seems to work correctly.
View 4 Replies
Jul 15, 2010
I have page on which I've a login control in which I've a subnit button. The problem is this that when I refresh the that page the submit button or any button that was clicked last before page refresh gets its click event automatically fired.
View 1 Replies
Mar 22, 2010
I have an ASP .Net TreeView control that I am dynamically adding tree nodes to from my codebehind on Page_PreRender. The TreeView is populated nicely and the appropriate checkboxes are where they are expected to be. For each of these nodes the SelectAction=TreeNodeSelectAction.None. However, when accessing the TreeView CheckedNodes() collection in my codebehind after selecting a few nodes (checkboxes are selected) and clicking a submit button to post back to the server in the button click event, my CheckedNodes.count() = 0. I can not figure out why my CheckedNodes collection in the codebehind does not contain the nodes that I have checked from the GUI.
View 8 Replies
Aug 6, 2010
I'm reading an invoice dataset and building a html table with checkboxes and textboxes in it, and I put that code in a postback = false block, then i got a button and a literal. The button click will loop through the html table checkboxes to calculate a total and assign it to the literal and display it. I got everything working except one thing, every time i click the button, the html table refreshes and lost all the value in textboxes....even though I put the html building block in the postback = false block,it seems like it still won't preserve the values in the textboxes once there's a button click...Anybody knows a solution to that? I want the textboxes keep what values are there.
Here is the code part:
[code]....
View 4 Replies
Feb 9, 2010
I have a GridView within an UpdatePanel - <asp:UpdatePanel ID="UpdatePanel1" runat="server" ChildrenAsTriggers="true">
Without listing any Triggers, I get a full postback when I visit a particular row within the GridView and click the 'Edit' button for that row.
However, if I enter the following trigger...
<Triggers>
<asp:AsyncPostBackTrigger ControlID="GridView1" EventName="RowEditing" />
</Triggers>
...I get an async postback when I click the 'Edit' button for a particular GridView row. This is what I want. In fact, I also get an async postback if I then click the 'Cancel' button for that GridView row which appears after having clicked the 'Edit' button.
However, if I instead click the 'Update' button that appears after having clicked the 'Edit' button, I get a full postback. I have tried almost every GridView EventName
I can find to add to the <Triggers></Triggers> section to get a click of the 'Update' button to result in an async postback, but with no luck.
What EventName should I use in the <Triggers></Triggers> section to get a GridView to do an async postback when clicking the 'Update' button for a particular row?
View 6 Replies
Apr 13, 2010
I'm having trouble with a simple radio set of two radio buttons (I don't want to use a RadioButtonList [RBL] because RBL doesn't allow child controls, and in my case, if you select one option, I want to enable a textbox next to the button; yes you could hack this with jQuery to move the textbox, but that's dirty!). I would check one, submit the form (either explicitly or through AutoPostBack), and the CheckedChanged event would never fire. When the page was reloaded, both buttons would be unchecked, regardless of their initial state on non-postback load or the state before form submission.
form id="form1" runat="server" enableviewstate="true">
<div>
<asp:RadioButton ID="foo" Text="foo" runat="server" AutoPostBack="true" OnCheckedChanged="rbChanged" Checked="true" GroupName="foobar" EnableViewState="true" />
<asp:RadioButton ID="bar" Text="bar" runat="server" AutoPostBack="true" GroupName="foobar"
OnCheckedChanged="rbChanged" Checked="false" EnableViewState="true" />
[code]...
View 2 Replies
