Web Forms :: Dynamically Populating Radio Buttons?
May 10, 2010
I have a writing a web page that will use several different types of control. The control types will depend on the data being read from a SQL database. The following is my code that decides what control to add to the page:
Select myReader.GetString(1)
Case "DatePicker"
Dim bdpAnswer As BasicFrame.WebControls.BasicDatePicker = New BasicFrame.WebControls.BasicDatePicker()
bdpAnswer.DateFormat = "dd/MM/yyyy"
divAnswerContainer.Controls.Add(bdpAnswer)
Answers.Controls.Add(divAnswerContainer)
Case "DropDownList"
Dim ddlAnswer As DropDownList = New DropDownList()
divAnswerContainer.Controls.Add(ddlAnswer)
Answers.Controls.Add(divAnswerContainer)
Case "RadioButton"
Dim rbAnswer As RadioButton = New RadioButton()
divAnswerContainer.Controls.Add(rbAnswer)
Answers.Controls.Add(divAnswerContainer)
Case "TextBox"
Dim tbAnswer As TextBox = New TextBox()
divAnswerContainer.Controls.Add(tbAnswer)
Answers.Controls.Add(divAnswerContainer)
End Select
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Similar Messages:
Apr 2, 2011
is it possible to dynamically create radio button options that are dependent on a value within a database? For example 'b' is stored in a field so then 'a' will also be a radio button option, 'd' is stored in a database field so then the other radio button options will be 'a', 'b', 'c'....the radio button list will change depending on the value stored in the database field.
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Jun 16, 2010
On my server side code I create a list of radio buttons with a loop:
[Code]....
The buttons are set to auto post back.On page_load I can get the ID of the radio button that was clicked with:
[Code]....
Now I would like to reference which list item was selected?
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Mar 21, 2010
i have a table which looks something like the following
<table id="Table1" border="0">
<tr>
<td><b>1.</b> Question 1</td>[code]....
how do i go about looping through each group of radio buttons and getting the text of the selected radio button ?the code displayed above is created dynamically ... in my aspx file i have the following code
<asp:Table ID="Table1" runat="server">
</asp:Table>
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Feb 8, 2010
I have a web application that shows a page containing between 6 and 20 AJAX UpdatePanels, contained with Custom Web (.ascx) Controls.
You can see an example of such a page here:
[URL]
The problem I'm getting is that when the user FIRST clicks any of the radio-buttons on any of the controls in the page, ALL the radio buttons that have an active selection ALSO fire an rb_CheckChanged event (see application log below). On subsequent radio-button
clicks, only that RB fires the event (as expected).
This behaviour is having a dramatic impact on performance. The page loads quickly, and a "normal" RB click provides an AJAX update correctly within 1 second. The problematic first RB click, however, takes up to SIX seconds to process, which is unacceptable from a user experience standpoint.
Developed in VS.NET 2008, ASP.NET 3.5. Also I converted the "Web Site" solution to a "Web Application" (pre-compiled) and got the same performance (still too slow). Release builds run only marginally faster than debug builds.
Why would a single RB selection change cause all RB's that have a "selection" set on them to also fire? (The "selection" is determined through database settings every time the control is populated, which is called from within the parent page control's Page_Load function. This selection is determined also at first page load, since all the controls get populated then, so why would the clicking of an RB cause them all to fire an event, and only once? That's what I don't get...)
Not sure if this is an AJAX issue, or general ASP.NET UI issue, so I'm posting in two forums on this one.
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Mar 4, 2010
In my form i have three radio buttons and nine image buttons, three image buttons per radio buttons
If the user check one radio button, the respective three image buttons only has to be displayed.
In a single time one radio button only can be checked the rest two would be unchecked
Here i have pasted the aspx file design source
[Code]....
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Jan 28, 2011
I need a control which can hold an image and two radio buttons, like the one we have when we upload a pictures on fb / orkut. 1. Image 2. Delete radio button. 3. Cover radio button. [Set this image as cover of album]
i have created a user control with these three things. On my aspx page on click of a button i need to add this user control. Means, user will select the image using FileUpload and when he clicks on the button this user control should be loaded. I am able to load the control. Check the following code.
[Code]....
1> All images come on new line i want them next to each other.
2> How to detect which radio button is clicked as i have more than one images, and all have radio buttons.
3> How to capture click of radio button from aspx page?
4> If there is some other way to achieve this let me know.
Searched on google but could not find a solution for this.
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Jan 8, 2011
I have two radiobutton list .I want show an image on selecting two radiobutton in asp.net c#..I write the code in page load but its so me an error Object reference not set to an instance of an object. tell me code for it and in which event i have to write that code.
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Dec 28, 2010
I've got 3 groups of controls each of which I want enabled/disabled depending on which radio button the user has clicked.
The code *works*, but daaaaaayuum the postback time from a radiobutton click is long.
I suspect my approach is the noobish way, and that there's a slicker way to achieve this control-groups-enabled effect.
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Mar 8, 2010
I am pulling some dynamic data from database SP (data will change). I need to show that data into row format with radio buttons and i need to retive same data from the page (as user selection on radio buttons values) to save data to DB. create such page with data.
Retrive data from DB like below (pic)
Page need to display like below (pic)
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Jan 17, 2011
I have radiobuttons within a datalist. The page where they appear is within a master page. The method I had in mind of achieving the validation is with a custom validator and the following sub:
[Code]....
The problem with this code is form1 is not declared. As it is passed in from the master page.
I also have tried another method as follows:
[Code]....
With this sub:
[Code]....
I then get the error Microsoft JScript runtime error: Object expected
Here is the datalist. I need to make sure the user selects an answer for each question:
[Code]....
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Mar 8, 2011
I have a user control I'm building that has a table layout with two sets of radio buttons, like:
how I could use a radiobuttonlist for each set of vertical buttons within this layout, unless I used a rowspan on each col, but that seems problematic from a layout perspective? I would rather use a RBL from a programming standpoint.
If I instead used a set of radiobuttons with a groupname for each, how do I get/set the selected button (for each set) from outside the UC?
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May 9, 2010
In my code, I cannot use a radiobuttongroup due to formatting constraints. This is a page where the user can update the data. So I have
<asp:TableCell ID="TableCell1" CssClass="answer" runat="server">
<asp:RadioButton ID="PatientYes" GroupName="Patient" runat="server" />
</asp:TableCell>
<asp:TableCell ID="TableCell2" CssClass="answer" runat="server">
<asp:RadioButton ID="PatientNo" GroupName="Patient" runat="server" />
</asp:TableCell>
If I have the case where one button is set when the page is displayed and the user changes to the other value, BOTH are coming back as TRUE. How can I just get the value selected by the user?
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Feb 25, 2011
the form has 15 items to choose with radio buttons, any number can be selected. I would like to process them as a 'group' so I can do something like loop thru them, checking if each one has been selected to build a list and also be saving them to a table row, etc but it seems all the designations as a list or group make it mutually exclusive. just looking for better coding than checking them with an if statement or similar so the question is if there is some way to designate the radio buttons as a group but no force the group to be mutually exclusive
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Jan 4, 2010
I have a table, that contains a number of rows, in each row there are three columns that are mutually exclusive. What I need is to be able to have radio buttons that are linked across the three columns.
tocid
mandactionid
action
yes
no
notapp
comment
1
1
Action 1
1
0
0
Comment 1
1
2
Action 2
0
1
0
Comment 2
1
3
Action 3
1
0
0
Comment 3
I'd like for where there is a 1 for it to display a checked radio button, and where there is a 0 for it to be unchecked. This can then be edited by clicking the radio in another column where necessary.
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Jan 12, 2010
I have a formview that runs of an SQLDS, very simple stuff. Inside that form i have various fields, one of them is a credit field, one of them is a debit field. Now i have put a radio button list with two radio buttons (credit and debit). What i want to do is when the "credit" radio button is enabled i want the "credit" text box to be enabled and visa versa.
I know how to reference an object inside a formview, but i am confused, do i reference the radio button list and then the list items inside it or?
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Mar 24, 2011
I need to create dynamic radio buttons in my page, and then access their values in postback
I create the buttons using the following code:
[Code]....
In the post back I try to access the radio buttons using their created ID:
[Code]....
But it seems that the find method is never finding the Radio button control.
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Feb 15, 2011
"Radio Buttons Are Not Mutually Exclusive When Used in a Repeater" according to KB #316495 http://support.microsoft.com/kb/316495. This bug also exists with ListViews, and I am having a hard time developing a workaround. Is there a solution or workaround available? I'm using Visual Studio 2010.
(Here is my ASPX. I want rbGroupedSession and rbFees to be mutually exclusive. Databinding and setting controls visible attribute to true/false is done in the code-behind. I'm also setting the RadioButtons "GroupName" property correctly in the code-behind, but it gets changed when rendered in the browser -- which is bug KB #316495)..
[Code]....
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Feb 14, 2011
I have a website that sales associates access to view account information with clients. S.A's can only view information for accounts that they are tied to. Some clients have more than one account, S.A's can be tied to more than one account, but not all accounts of one client need to be tied to one S.A.
On the account info pages, I have account numbers (dynamically displayed labels) displayed of other accounts that the account client is associated with, which the S.A's can see. I'm modding this so that if the S.A has viewing permissions of any of the other accounts on that list of accounts, that instead of a label being displayed, a button directing them to that account page will display instead. In order for this to work, I have to attach a security function to the button, otherwise the page will blow out on the S.A's.
So I'm running a piece that is displaying a button instead of a label, which is working fine. My problem is when I try to attach the security event to the dynamically displayed buttons. It seems that the page just posts back and doesn't execute my code at all.
On my Page_Load, I'm running this after the buttons and labels are displayed:
For x = 0 to tblAccountList.Rows.Count - 1
'use a try to target the button, use catch to handle if it's instead a label, only one cell per row.
Try
Dim accountLink as Button = tblAccountList.Rows(x).Controls(0)
Addhandler accountLink.Click, AddressOf Me.PermissionViewCheck
Catch ex as InvalidCastException
Continue For
End Try
Next
I don't have any code checking for postbacks or anything like that, but the "PermissionViewCheck" event never fires and just reposts the page.
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Oct 13, 2010
I've got a gridview that will allow clients to edit options they've already entered on another page. The gridview has three radio buttons in it each with a value of 1,2,3. The option value in the dataset is 1,2 or 3 respectively. I would like to have the radiobutton with the corresponding value selected in the gridview so they can see what they previously chose and will then be able to edit, if they wish.
Here's my code so far:
[Code]....
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Sep 13, 2010
I am having a bit of trouble trying to get teh postback data from a programmatic generated radio buttons in TableCell object. I have the following ASP user control:
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="wcntrlCallFlow.ascx.cs" Inherits="CallEvaluation.wcntrlCallFlow" %>
<style type="text/css">
.TableDev
{
width: 100%;
border-style: solid;
border-width: 1px;
border-color: Black;
}
.HeaderRowStyle
{
width: 100%;
border-style: solid;
border-width: 1px;
border-color: Black;
background-color:#33CCCC;
}
.DetailRowStyle
{
width: 100%;
border-style: solid;
border-width: 1px;
border-color: Black;
background-color:White;
}
</style>
<asp:Table ID="tblControl" runat="server"/>
I generate the TableRow and TableCell base off XML data file. When the submit occurs I can not access the data values from the radio buttons that are generated. I try to get the data in the following manner:
if(Request[objRadioName].Checked)
{
this.value = 5;
this.ReCalc();
}
I notice that in the Request object the table row name is passed back like: "wcntrlCallData1$wcntrlCallFlow1$CallFlow".
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Jan 25, 2011
i am developing a quiz website in which i want to display question and then radio buttons according to the number of choices of that question dynamically by accessing from db.
i have displayed it in labels but it display one question and one radio button and one choice and question repeats according to the number of choices... as follows
Q#1 What does asp stands for?
radiobutton All standard pages
Q#2 What does asp stands for?
radiobutton Active Server pages
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Jul 2, 2010
How to use radio buttons in grid view. i used asp:radiob button but the problem is that it selects all the radio buttons in the list how to select only one radio button at a time
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Sep 27, 2010
I have a 2 groups of Radio Button controls on my web page that are dynamically loaded. They are contained within a DataList control. I have the "GroupName" property set for each of the groups, however, I am still able to click on more than one rdo within each group. I've set the "GroupName" property within my HTML markup.
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Jan 13, 2011
I am using Radio buttons inside a panel in a web page. (Since group boxes are not there). But when I click on each radio button they all are checked. They are not acting as a group but single units.
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