Web Forms :: RadioButtonList Code Behind Help.
Mar 21, 2011
I have a radiobuttonlist and what im trying to do is throw an error label when the user fails to select the button from the list. Im doing this in a switch statement in my code behind but I keep getting the error 'object reference not set to an instance of an object" but i dont get why is throwing that error since im saying to get the value of the list and if nothing is selected then throw the default case. here is my code: [Code]....
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Aug 25, 2010
I'm trying to populate my form that is made up of RadioButtonLists, a Text Box and a DropDown via Code Behind. WHen I run it, the Text Box and the DropDown populate, but the RadioButtonLists do not. I'm guessing it has to do with the SelectedValue command, but I'm not sure what to use. Here is my aspx page:
[Code]....
Here is my code behind: [Code]....
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Jan 4, 2010
I have a radiobuttonlist in a details view. Databinding is happening in PageLoad (if not IsPostback), after a details view item is inserted, edited and upon clicking cancel when in edit mode.Everything works well except when clicking cancel which for some reason the radiobuttonlist appears as empty. The code is surely working because up till OnPreRender the radiobuttonlist contains the required items. However OnRender the list appears as empty.
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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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Oct 7, 2010
I am populating a radiobuttonlist in codebehind:
Code:
[code]....
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Jan 27, 2011
Is it possible to add the ListItem values in the code-behind within a for loop? If so, what is it? Here is my current code:
rblContentTypesGetAll.Items.Clear();
for (int i = 0; i < dt.Rows.Count; i++)
{
rblContentTypesGetAll.Items.Add(dt.Rows[i]["contentType"].ToString());
}
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Jan 28, 2011
I have a scenario where a RadioButtonList needs to be in disabled mode by default and then on some event on client side, say, when a checkbox is checked, it needs to be enabled.
But once I disable it from code-behind, the javascript part of enabling it doesn't work.
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Sep 20, 2010
I am using the jQueryUI buttonset on an ASP.NET radiobuttonlist. I need to get the selected value in server-side code when the page posts back. If I don't apply the jQuery buttonset, this is of course easy enough - just grab "SelectedValue". However, when I do apply jQuery buttonset, the selected value does not appear to be available on postback any longer. Is there any way around this, or do I need to get the selected value on clientside, and then pass it back myself?
<asp:RadioButtonList ID="RadioButtonList0" CssClass="ratingButtons" runat="server">
<asp:ListItem Text="Option1" Value="1"/>
<asp:ListItem Text="Option2" Value="2" />
<asp:ListItem Text="Option" Value="3" />
<asp:ListItem Text="Option4" Value="4" />
</asp:RadioButtonList>
$(function () {
$(".ratingButtons").buttonset();
$(".ratingButtons").click(function () { return false; });
});
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Jan 15, 2011
i have a radiobuttonlist and dynamically i want to add images to it after fetching it from database. I fetch the required data and store it in data table and then try to bind images to radiobuttonlist but somehow the images are not getting displyed.
[code]...
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May 5, 2010
ViewState is active and I have a RadioButtonList with DataSourceID to LinqDataSource.If I postback and cause event SelectedIndexChanged, I can read the SelectedValue property, but if the postback is caused by another control, SelectedValue its always empty...Note if I turn ViewState off, works fine, SelectedValue has always a non empty string...
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Nov 9, 2010
I am creating a wizard with a radiobuttonlist inside it. There are no style sheets being applied and I have the RepeatDirection set to Horizontal and the RepeatColumns set to 5. I have also tried changing the RepeatLayout from Table to Flow and nothing works. I want the radiobuttonlist to show up horizontally, but it keeps showing up virtically. Let me rephrase that. In the Design view in VS2010 it looks fine. However, when I view the live web page, the darn thing keeps going virtical.
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Feb 8, 2010
i have wrote following code but it will not fecth selected value:
Table tab =
new Table();
int j = 0;
[code]...
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Mar 8, 2010
I want to be able to display information about each rate pulled, mainly: a description for the user, the rate or charge amount, hidden from the user I would like to save the estimated date of arrival and shipping method code.
Right now i'm using a RadioButtonList to display the data, but with a name/value pair I can only do so much (unless I wanted to really hack it up and make the value of each list item comma delimited or something like that to be able to store all that data). There can be multiple rates shown depending on the number of shipping options rates are being pulled from. Is my only other option to use a repeater or are there any other clean options?
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Sep 19, 2010
The radiobutton list I have display:
O Ford
O Chevy
O Other
[Submit]
If you click on the submit button [Submit] I would like it to pull the data from whatever information that was selected. i.e. if Ford was selected than Mustang, Focus and Explorer would be return. If Chevy was selected than Cobalt, Cadillac and Corvette would be turn and so forth. I guess I can have a stored procedure to be call when the [Submit] button is click which would be "select models from Types" but how will the proc know if Ford was selected Chevy or other. I guess the stored proc will have to accept the [Submit] as a string to know should it pull the Ford models or Chevy models. or is there a better way?
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Mar 24, 2011
How can I insert 2 DropDownLists into RadioButtonList ?
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Mar 9, 2011
I am experiencing the "Input string was not in a correct format." error and I have no clue how to fix it.
I have a radiobuttonlist and a submit button, the radiobuttonlist is dynamically bounded to a datasource. when user clicks on the submit button, I am trying to retrieve the selected value in the radiobuttonlist, but somehow the radiobbuttonlist selectedvalue is null. How to retrieve the selectedvalue for the radiobuttonlist?
The aspx form code is as below:[Code]....
aspx.cs code: [Code]....
The form displays the radiobuttonlist listitem value without problem. However, the rdChoice.SelectedValue is null.
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Jan 11, 2010
I have a RadioButtonList with three ListItems, like this:
[Code]....
TrueRuleCondition, FalseRuleCondition, and CustomRuleCondition are protected constants in the code-behind file that I want to use as the values for my listitems. Unfortunately, the values get treated as literal values instead of having the values of the variables inserted. Does anyone know of a way to do this or why this doesn't work as I expect it to?
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Mar 11, 2011
Based on Checkbox click radiobuttonlist controls are enabled/disabled.
for some reason i cannot set the focus on to 2nd item with in the list item.
Checkbox (autpostback property as true).
on checkchanged event i have the following code
[Code]....
This code sets focus only to the first listitem and when user hits tab focus is set to next checkbox but what i need is after focus from firstlistitem set focus to secondlistitem.
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Feb 10, 2010
In my database table I allow null for the gender field. However, when the form is being edited, it gives me an error since the RadioButtonList does not have a match value for null. How do I get around this? Is there a way to have null value in the RadioButtonList control?
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Sep 22, 2010
I am using:
[code]....
This solution doesn't work though. It doesn't leave the option of choosing anything from the list. Plus I would like it if it were a Radiobutton instead of a Dropdown. The field in the database is varchar(50).
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Oct 18, 2010
I've two RadioButtonLists which pulls "fullName" and displays, the idea is for the user to select from RadioButtonList1 and RadioButtonList2 then submit the data.
If there is already values assigned from sql then there should be a selectedvalue for both controls. But I can't seem to get the controls to assign the selectedvalues.
I've a SqlDataSource, 2 RadioButtonLists and some code binding it:
[Code]....
Also when I go to select just one record from RadioButtonList and submit the data, it returns errors because it sees it as submitting null values.
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May 3, 2010
i have a RadioButtonList and the list is bounded by a datasource.
By default, its default selected item is empty, i would like to know how i could make the first thing it databounds into, should be the selected item.
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Sep 12, 2010
I need to bind data from an SQL Select Statement into a RadioButtonList and have not been able to come up with anything that works.
[Code]....
In my VB code behind I have a select statement that retreives the information from the database and randomizes the answers, but I am unable to get this populated into my RadioButtonList.
[Code]....
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Jan 13, 2010
I have this issue which isstopping me from completing my web forms.
there are checkbox lists and radiobutton lists in my page. In FF, they are displayed properly. But in IE, there is an extra box around the checkbox and an additional circle around the radiobuttons. I tried using different stylehseets with no results.
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May 10, 2010
I´m filling a RadioButtonList using a ObjectDataSource. I would like that when I post back the page, the RadioButtonList has not rebind to the ObjectDataSource in order to keep the RadioButtonList selected value.
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