Web Forms :: Reading Data From RadioButtonList In PlaceHolder On Dynamic Site?
Oct 24, 2010
I'm a new in ASP and I have this problem. I do some small websurwey. Random questions per page, random count of questions, 4 types of questions (answears 1 .. 10, Text answears, ... atc.) I created webuserscontrol for each type of questions and these controls I dynamicly add to place holder in some page. There is everything OK, but when I click button on the bottom of the page, I need save the results from client, I need to know which radiobutton is selected and save it to DB and make some operation, and then, after saving, this page is reloaded and show next
Questions. This questions and settings I have in DB. My problem is, how to read data from my UserControls after button click (button on page, not on my controls)? Controls in placeholder are NULL in PostBack and after postback there are new controls. I endclose a small code which is "like" my original code, it is testcode to explaine to you.
[Code]....
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Dec 10, 2010
I am creating dynamic controls... i.e. ddl
DropDownList ddl = new DropDownList();
ddl.DataSource = data;
ddl.ID = id;
ddl.DataValueField = "Key";
ddl.DataTextField = "Value";
ddl.DataBind();
PlaceHolder1.Controls.Add(ddl);
Loading the controls to the placeholder.
Selecting a value and clicking the button, doing postback, I want to capture the value selected in the ddl. I was using "FindControl method" but it is not working, I guess because the controls are created dynamically and will not show due to stateless HTTP.
How else can I capture the values? Is there away?
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Jun 27, 2010
My code was actually working before. I think since I switched to .NET 4, it may have stopped functioning.What I do is this: I add some TextBox controls inside a PlaceHolder control. Then when user clicks the submit button, I am reading values entered into these texboxes.
This is what's on the page:
[Code]....
This is how I add controls into my PlaceHolder:
[Code]....
And this is the button click event: [Code]....
Like I said, this code was working before but now it doesn't.
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Jul 8, 2010
This works fine without using a masterpage. What is the masterpage messing up here. Basically creating all dynamic controls. Linkbutton>tablecell>tablerow>table>panel>placeholder. The linkbutton id is not being set when building. The link button id is registered fine when not using the masterpage. Also using ajax.
masterpage.aspx
[Code]....
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Oct 22, 2010
I have a placeholder to which I programmatically add DataGrids... In the DataGrids, I programmatically add TextBoxes along with dynamic validations. Somehow, the DataGrids show up, but the dynamic validations don't work. If I set them to static, the blank space for them appears, but still, they wont work.
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Jun 23, 2010
using VS 2005,Ajax and master pages This is how i'm adding controls to placeholder
[Code]....
here is code to read value but it returns null
TextBox text = PlaceHold1.FindControl("TxtSlotName0") as TextBox;
aspx page follows
<%@ Page Language="C#" MasterPageFile="~/Admin.master" AutoEventWireup="true" CodeFile="SlotAlloc.aspx.cs" Inherits="SlotAlloc" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label><br />
<table align="center" width="50%">
<tr>
<td align="center" colspan="2">
<asp:Label ID="LblErr" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td align="right" width="50%">
<asp:Label ID="LblType" runat="server" Text="Type"></asp:Label></td>
<td style="width: 811px">
<asp:DropDownList ID="DropType" runat="Server">
</asp:DropDownList></td>
</tr>
<tr>
<td align="right">
<asp:Label ID="LblLogin" runat="server" Text="Login"></asp:Label>
</td>
<td style="width: 811px">
<asp:DropDownList ID="DropinHours" runat="server">
<asp:ListItem>1</asp:ListItem>
<asp:ListItem>2</asp:ListItem>
<asp:ListItem>3</asp:ListItem>
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</asp:DropDownList>
<asp:DropDownList ID="DropInMinutes" runat="server">
<asp:ListItem>01</asp:ListItem>
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</asp:DropDownList>
<asp:DropDownList ID="DropInSeconds" runat="server">
<asp:ListItem>01</asp:ListItem>
<asp:ListItem>02</asp:ListItem>
<asp:ListItem>03</asp:ListItem>
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</asp:DropDownList>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="Lbllogout" runat="server" Text="Log Out"></asp:Label>
</td>
<td style="width: 811px">
<asp:DropDownList ID="DropOutHours" runat="server">
<asp:ListItem>1</asp:ListItem>
<asp:ListItem>2</asp:ListItem>
<asp:ListItem>3</asp:ListItem>
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</asp:DropDownList>
<asp:DropDownList ID="DropOutMinutes" runat="server">
<asp:ListItem>01</asp:ListItem>
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</asp:DropDownList>
<asp:DropDownList ID="DropOutSeconds" runat="server">
<asp:ListItem>01</asp:ListItem>
<asp:ListItem>02</asp:ListItem>
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</asp:DropDownList>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="LblNoofSlots" runat="Server" Text="Number Of Slots"></asp:Label></td>
<td style="width: 811px">
<asp:TextBox ID="TxtSlots" runat="server" AutoPostBack="True"></asp:TextBox>
</td>
</tr>
</table>
<asp:UpdatePanel id="UpdatePanel1" runat="server">
<contenttemplate>
<TABLE width="80%" align=center><TR><TD align=center colSpan=4> <asp:Button id="BtnGenerate" onclick="Button1_Click" runat="server" Text="GENERATE"></asp:Button></TD></TR><TR><TD style="TEXT-ALIGN: center" width="20%">Slot Name</TD><TD style="TEXT-ALIGN:
center" width="30%">OnTime/Time period</TD><TD style="TEXT-ALIGN: center" width="20%">Time From</TD><TD style="TEXT-ALIGN: center" width="30%">Time To</TD></TR><TR><TD colSpan=4><asp:PlaceHolder id="PlaceHold1" runat="server"><br/><br/></asp:PlaceHolder> </TD></TR></TABLE>
</contenttemplate>
</asp:UpdatePanel>
<table align="center" width="80%">
<tr>
<td align="center">
<asp:Button ID="BtnSubmit" runat="server" OnClick="BtnSubmit_Click" Text="Submit" />
</td>
</tr>
</table>
</asp:Content>
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Apr 16, 2010
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Nov 16, 2010
I have a dropdown on page, a place holder and a save button on my form.Now, I am creating a textbox on selectedIndexChanged event of dropdown list and adding it to placeholder. And on button click I want to access the control, but on click event, I find the textbox as null. Here is my code
protected void Dropdownlist1_SelectedIndexChanged(object sender, EventArgs e)
{
if (Dropdownlist1.SelectedValue != string.Empty)
And button Save click event
protected void btnSave_Click(object sender, EventArgs e)
{
TextBox txt = new TextBox();
txt = (TextBox)this.ElementPlaceHolder.FindControl("txtArea");
[Code]....
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Mar 22, 2011
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[Code]....
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Feb 2, 2011
I have a radiobuttonlist inside a datalist itemtemplate and i need to bind the radiobuttonlist dynamically from database I have tried to bind it inside itemdatabound event of datalist but it the result is always duplicated according to the fields in teh database.
for more information:
the database has two columns one for questions and the other is for choices , for the first question with id lets say 1 there are 4 choices, when the radiobutton is binded the result appears to be 4 times duplicated ?
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Jan 19, 2011
I want to display panels based on the check boxes selected on the dynamic checkbox list control. I have been able to dynamically build the check box but have no idea on how to access its checked propety. This is what I am doing but getting error on Request.Form On page load wrote this code.
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{
int i;
int chkboxCount = Request.Form("chklist1").Count;
for ( i = 1; i < chkboxCount)
{
String valueChkbox = Request.Form["chklist1"];
}
}
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User List = All the users Mr Bob = A user the administrator has selected from the User List Accounts = A list of the user's accounts 12BOB = The administrator has selected the account named 12BOB Items = A list of the items an account contains Item32 = The item that the administrator selected Edit = The action that the administrator wants to do. I can picture how this would look like if it was using ASP.NET MVC with the URL, but I am unsure how to map this out using Webforms, and in the physical filesystem.
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/Users/User/Accounts/Account/Items/Default.aspx <- for viewing all items in an account
/Users/User/Accounts/Account/Items/Item/Edit.aspx <- for editing an item
Where can I read more about this kind of setup in a web application? Or, can someone point me in the direction of an available project that has this kind of layout?
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Oct 27, 2010
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I'm just now created Dynamic Data Entities Web Site. And I have got a problem with image type. for all sql data types generated html elements by fieldTemplate. So, how can I create fieldtemplate for image-view, and image-upload?
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I've got a dynamic data application that I would like to use several Ajax Controls on (I.E. combo box with auto complete instead of dropdown for foreign key edit fields). I'm running into problems when I try to edit tables. I replaced the regular script manager with the one defined in the AJAX tool kit on the master page (Site.master). The combobox displays, and the table gets updated when you click update/insert, BUT, when the site tries to redirect back to the list view it barfs up a funny URL that the browser can't resolve. EX: www.example.com/TABLENAME/%2fTABLENAME%2fList.aspx when it should be www.example.com/TABLENAME/List.aspx. It works fine with the standard scriptmanager, but the ToolKit's manager doesn't. I'm using Visual Web Developer 2010 express, language is VB, DynamicData application uses LINQ to SQL.
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[Code]....
I want to copy a placeholder to another placeholder, i know, i can't write somethin like this,
plh_footer = plh_header;
how can i do that?
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The last phase of the installer fails with this message:Installation IncompleteThe installer was interrupted before [project] could be installed. You need to restart the installer to try again.
Running msiexec /i installer.msi /l*vx setup.log shows the following entries in the setup log:
INFO : [...] [ApplyWebFolderProperties]: Getting web folder property token...
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INFO : [...] [ApplyWebFolderProperties]: Getting METADATA_HANDLE for the directory '/LM/W3SVC/1/ROOT/ProjectDir/DynamicData/Filters'.
[code]...
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i have a Method which create textboxes dynamicly. When i change one of my textbox's text, it create that amount textbox and label. But my problem is, when i entered values to them and click my button, they are disappearing and i cant find my controls. Some of my codes
[Code]....
What should i do for solving this ??
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Also I use Web.sitemap and include all static sitemap pages. In my Web.config, I have this:
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Currently, many pages uses this static site map for many projects and I'm not supposed to update the master page, but I need to have dynamic site map so that I can add query strings for each navigating pages.
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Jun 4, 2010
I am dynamically creating a table that contains a textbox in each cell. The table is put in a placeholder control. Everything displays perfectly. The problem is when I go to retrieve the values entered in the cells. I have the code to generate the table in a separate method called CreateTable(). In order for my program to find a table in the placeholder when I go to save, I have to run CreateTable() in a postback event AND in the PageLoad event. If I call CreateTable() in only one of those places and I try to save, it says the placeholder is empty and, therefore, I cannot save the textbox contents. I've tried calling CreateTable() from InitLoad but that doesn't work because it needs to reference values from three static controls: 1 dropdown, 1 listbox, and 1 calendar control, which I don't believe have had their viewstate rendered yet.
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Aug 19, 2010
I have a ASP.NET page using a PlaceHolder. Grids are build programmatically and added to this PlaceHolder when the page is run. Example:
ASPX Code:
<asp:PlaceHolder ID="myPlaceHolder" runat="server" />
Code behind:foreach (var country in Tables.Countries())
{
var nGrid = BuildGrid(country.Code);[Code]....
This page works flawlessly in Opera and Firefox. Internet Explorer 8 shows me the "cannot display the webpage" screen.
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Jun 18, 2012
I have an excel sheet in that all the data is added what i want is my webpage should be change as soon as i modify my excel Sheet and automatically a new aspx page generate if any data will add in excel sheet.
I need to create the CMS of my webpage which will be totally dynamic and record must be store and read from excel only.
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Dec 1, 2010
I have the following code, however I am not able to see the table data using placeholder,
The dataset shows the column info but no data. the query shows the data from query builder.
protected void btn_save_click(object sender,
EventArgs e)
{
string host;
[Code]....
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Sep 29, 2010
I have a Placeholder in which I added a Hyperlink (the hyperlink is an attachment in messaging application) how do I get the hyperlink to go hot when the user put there mouse over it:
[Code]....
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