Web Forms :: Dynamically Created Control Is Not Accessible / Dropdown Returns Null When Trying To Get The Values On Submitting The Form

Nov 17, 2010

Im dynamically creating several dropdowns onclick of a button... but the dropdown returns null when im trying to get the values on submitting the form... i read tat during postback all dynamically created controls will be lost... s there a way to register the controls... i want to access the item selected in the dropdown .... expecting a positive reply...

View 1 Replies


Similar Messages:

Web Forms :: Dynamically Created Controls Not Accessible After Post Back.

Sep 17, 2010

dynamically HtmlInputCheckBox created and add in PlaceHolder(panel).

View 2 Replies

VS 2010 - Dynamically Created Controls Not Accessible With Client JavaScript

Aug 2, 2012

I've tried creating checkboxes, literalcontrols and textboxes. I need to generate checkboxes dynamically, depending on how many types of <whatever> the user has put in. I know how to do this (I think), but the problem is the controls don't work as they should.

If I create server controls, then for some reason I can't change the value with javascript. If I create client controls, then something appears to happen with the id so the server can't fetch the value (it doesn't recognize the id, allthough it's there in the html)

I can't use a regular checkbox with autopostback because there is to much happening at page load. On other pages on the site, this works, but on those pages the controls are not created dynamically.

View 7 Replies

MVC :: How To Validate Before Submitting Form Values

Apr 28, 2010

I have a submit button on my form. However, I would like to do validation before submitting.

View 9 Replies

Web Forms :: Adding Carriage Returns Between 2 Dynamically Created Controls In HtmlTableCell

Aug 24, 2010

[Code]....

On the line where i try and update the InnerHtml, i get the following error; "Cannot get inner content of because the contents are not literal."

View 2 Replies

Web Forms :: Use Dynamically Created Controls Such As A Checkbox List And Fill The Values Dynamically?

Sep 28, 2010

I'm creating an quiz application which queries the database and extracts the questions and choices. I use dynamically created controls such as a checkbox list and fill the values dynamically. How do I do this? Right now I have these functions:

array_random_init(); this creates a 10 element integer array from 1-20 - extract_question(i): this extracts a question indexed at i in DB, I created the controls and set the appropriate text in this function. - validate_question(i); this is called by button_click and validates the question i according to DB.

I understand I have to recreate the controls in Page_init on postback, but what should it look like? Do I need to add "if IsPostBack" in page_init, or do I create the controls in page_init() and reset their properties in page_load when I use extract_question(i)? Also, I cannot seem to clear the selected boxes on postback, I added page directive "enableviewstate=false" but it doesn't work.

View 2 Replies

Forms Data Controls :: Value Of Control Is Empty After Submitting The Form 2nd Time?

Mar 10, 2011

I am experiencing a problem on my aspx page.

I have a web form on which the user fills in a basic data: date (with drop down lists), an asset class (with a radioButtonList that is bound with en Enum) and other simple controls... The, when the form is submitted, I make a query on the database to retrieve my data and bind these data into a gridView.

Here are some bit of codes

protected void Page_Load(object sender, EventArgs e)
{
foreach (int assetclassVal in Enum.GetValues(typeof(AssetClass)))
{

[Code]....

The 1st time I submit the form everything is working well, the second time even if I change nothing in in the web form, the GridView1_RowCreated fires an exception when the property AssetClass is called. The error message is

Must specify valid information for parsing in the string.

&#65279;This is because rblAssetClass.SelectedValue is empty, but I don't understand why.

View 1 Replies

Forms Data Controls :: Add Value In A Dynamically Created Dropdown List?

Jan 11, 2010

I have a database with some data in. Now I'm trying to show that data on my page whit a ListView.

For each object from the database a ListView will generate a dropdownlist.

I also have a DataPager on my page and this is where the problem occurs.

Each object generated from the database has a field that may look like this example.: 1,2,3.

In my code now I“m trying to split this string of comma character and add new items to my dropdownlist.

This works as long as I do not have DataPager on. But if I choose to view an x number of pages at the time when the page loads, I have value in the dropdownlists, only on my first page.

A piece of my code:

[Code]....

View 2 Replies

Forms Data Controls :: Accessing The Dynamically Created Dropdown In The Datagridveiw?

Jul 24, 2010

i have the requirement that to set the 'Timetable' for school..

i need weekdays vertically and periodnames horizentally as headings in the gridveiw.. and with in the gridveiw the client can able get those many periods dynamically with in the dropdown....

View 1 Replies

Web Forms :: Attaching A Dynamically Created Checkbox To The Server Side Form?

Jul 29, 2010

I am trying to allow for multiple selection check boxes that are created dynamically.

The Following code is written for each row in the dataTable (I print it as HTML code)

<input type='checkbox' name='multiCheck' id='chk{1}' value='{1}' runat='server'/>

however, on the server side (after postback) I can't read them from the Request Object. How do I "mark" them so I can read them at the postback?

protected void DeleteSelection_Click(object sender, ImageClickEventArgs e)
{
int multiIdsToDelete = Request.Form["multiCheck"]; <-- In the Future will be added to an array so I can do the delete for each row selected.
}

View 6 Replies

Forms Data Controls :: How To Get The Values Of Checkboxes Which Are Dynamically Created

Feb 8, 2010

I am new to asp.net. I am trying to display some data from a database table using dynamic table in my page. I want to add checkboxes to a field in the database and would like to perform several tasks based on the values checked. The checkboxes are tied with the primary key field of the database. Here is the code snipet :

[Code]....

Now I have a button in my page. The functioanlity which I desire is on clicking that button I should be able to extract the values of checked checkboxes and perform some function.

View 4 Replies

Forms Data Controls :: Getting Values For Dynamically Created Radiobuttons?

Jan 4, 2011

I am creating a project that dynamically creates radiobuttons. So far, i'm done with creating those radiobuttons dynamically. My problem is getting the values from those radiobuttons. To get those values, I need to click the submit button, however it seems that the radiobutton value or the radiobutton itself is lost after I click the submit button.

here are my codes, though not my exact codes, it follows the same logic...

protected void Page_Load(object sender, EventArgs e)

View 11 Replies

Forms Data Controls :: Get Values From Dynamically Created Checkbox In Datagrid?

May 6, 2010

Im basically listing a set of facilities in a datagrid. Like so:b Projectorcb Laptopcb TelevisonIn roomview, a check appears where a facility is availble in a room. This part works fine.The user can then edit the facilities, by clicking on the check beside each facility. When the update button is pushed I need to record the value of the checkbox, however I cant get the value of the checkbox.eres my codebehind:

[Code]....

View 13 Replies

Web Forms :: DropDown List Not Retaining The Values(the DropDown Inside Gridview Control)?

Jun 12, 2010

I Have the gridview control with 2 dropdown list and 2 text boxes,When the textbox chnaged event happen 1 row will create and the dropdown back to initial values( its not retaining the selected values),I am binding the control after text changed method,Is there any properties needs to be set or any other way we can retain the values in postbacks?

View 4 Replies

Dynamically Created HTML Form

Dec 6, 2011

I am beginning to write a dynamically generated, database driven form. It will be split into several sections, each section having a "next" button, that will save the current section and proceed to the next.

Ive not begun yet but as its generated dynamically this will all be on the same page and either postback, or redirect to itself and the questions will be loaded into a repeater, choosing the input type based on whatever in the database.

My problem is that one section of the form works slightly differently.

I need to ask all the names and birthdates of everyone who lives with you, so I would need the form fields, an input button and then when pressed save the data and load into a repeater, which will have its own delete button as itemcommand.

View 2 Replies

What Is Difference Between Server Side Submitting And Client Side Submitting A Form

Jan 25, 2011

what is difference between server side submitting and client side submitting a form.

Can any one explain with an example.

View 2 Replies

AJAX :: Cascading Dropdown List Where The Number Of Dropdowns Is Created Dynamically On The Page

Mar 7, 2010

I am using cascading dropdown list where the no of dropdowns is created dynamically on the page. The cascading drop downs are contained in a User Control. I need to call a method from the Parent page which will be executed when the values in one of the dropdowns change. The server side event is not firing as I have set AutoPostback property for the dropdownlists to be false. How can i make the Page event fired from the Selected index changed of the dropdowns keeping the autopostback property to be set as false.

View 5 Replies

Web Forms :: Validating If Text Box Is Null Before Submitting

Sep 2, 2010

I am trying to validate a textbox in C# to see if it is null before submitting but it still allows me to submit and does not give the warning message. here is my code

[Code]....

View 3 Replies

Reading Values From Dynamically Created Webcontrol?

Feb 4, 2010

I have a Webcontrol, that I create completely dynamically and it contains radiobuttonList. How can I acces this radibuttonlist values, on pages where I register this control?

public class MyControl: WebControl
pnContainer = new Panel();
rbl = new RadioButtonList();
liResume = new ListItem("Resume", "Resume");
liReopen = new ListItem("ReOpen", "ReOpen");
rbl.Items.Add(liResume);
rbl.Items.Add(liReopen);
pnContainer.Controls.Add(lblReOpenTitle);
pnContainer.Controls.Add(rbl);
this.Controls.Add(pnContainer);

View 1 Replies

How To Reset Values Of Dynamically Created Controls On C# Page

Jun 2, 2010

i have an array of buttons added to a panel control and need to reset them to their original values, is this possible pragmatically?

protected void Page_Load(object sender, EventArgs e)
{
RenderTable();
}

[code]....

View 3 Replies

C# - Access Values Of Controls Dynamically Created On Postback?

Jun 11, 2010

My problem is:

I've got a table, dynamically created, fill with a lot of dropdownlists witches IDs are dynamically created.

When a button is pressed, I need to scan all controls in the table and save their value.

But after the postback I can't no longer access to the table.

View 2 Replies

Web Forms :: Get The Control Id , Dynamically Created In .ascx.vb

Jul 21, 2010

I am not able to get the htmlinputimage control id created dynamically based on no of rows reterived from db.

these controls are bn created in usercontrol (.ascx.vb) page

The actually requirement is ...there are set of images in a table, i need to get a particular image src, based on that i need to collect the image id(s) and use it for futher process...

and this is poosible using a FindControl... which i have bn trying , but all invain...

View 4 Replies

Web Forms :: How To Get Dynamically Created HTML Control ID

Apr 17, 2010

We are creating html Table dynamically on the basis of data fetched from database and assigned id to each Cell while creating them dynamically. But the problem is how to access values in Cell. Because we are not able to get id of Runtime generated TD.

View 2 Replies

Data Controls :: Find Control Method In Details View Returns Null

Nov 29, 2013

I have detailsview control with bound fields...some usingĀ  Templatefields. I am trying to access values in those fields but i get nulls....i really dont know why..I am proving all my code....

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Projects.aspx.vb" Inherits="Projects" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Projects Statuses</title>

[code]....

I guess something might be getting messy with the mode changing event... a postback? But if i remove the databinding code, i get an error! why find control returns null??

View 1 Replies

How To Pass Values From Dynamically Created Gridview Checkboxes To A Crystal Report

Nov 1, 2010

Does anyone know how to pass values from adynamically created gridview checkboxes to a crystal report?Is it possible? I am using asp.net, vb.net and mssql. Here's my grid minus a few boundfields:

<asp:gridview id="grid" runat="server" autogeneratecolumns="False" cellpadding="4"
forecolor="#333333" gridlines="None" emptydatatext="No Products registered for this company...">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:CheckBox ID="chkSelect" runat="server" onclick="javascript:HighlightRow(this);" AutoPostBack="True"/>
</ItemTemplate>
<HeaderTemplate>
<input id="chkAll" onclick="javascript:SelectAllCheckboxes(this);" runat="server" type="checkbox" />
</HeaderTemplate>
</asp:TemplateField>
<asp:BoundField DataField="aid#" HeaderText="AID#" />
<asp:BoundField DataField="brandname" HeaderText="Brand Name" />
<asp:BoundField DataField="exp_date" DataFormatString="{0:MM/dd/yyyy}" HeaderText="Exp. Date" />
</Columns>
</asp:gridview>

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved