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?
View 5 Replies
I would like to have a radiobuttollist were you can select value null.
Something like this:
[code]....
for the radiobuttonlist control, when I try to style individual buttons with 'span'I get a error, is there some way to style each button?
[Code]....
error is:
System.Web.UI.WebControls.ListItemCollection must have items of type 'System.Web.UI.WebControls.ListItem'. 'span' is of type 'System.Web.UI.HtmlControls.HtmlGenericControl
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 ?
I've created and added some radioButtonList controls from code-behind.
[Code]....
[Code]....
I have several lines of code like this:
[Code]....
How can I do this?
I have a radiobuttonlist control on my control, where the datasource is a collection, and I am using the DataTextFormatString to set the text field to a hyperlink. All this bit works, but where I am struggling to work is to add to the url path the value from the datavaluefield. Nothing I try works! Does anyone know how to set the datavaluefield into the url? Further, and one last question, my radiobuttonlist control is in a wizard step, and when the user clicks on a hyperlink, I want it to go on to the next step, all that is happening is that the link is going back to the first step.
View 2 RepliesI have added a RadioButtonList inside a repeater as follows:
(.aspx file):
<asp:Button ID="Button1" Text="Add Comment" runat="server" />
<asp:Panel ID="pnlPanelDemo" runat="server" CssClass="modalPopup" ViewStateMode="Disabled">
<cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</cc1:ToolkitScriptManager>
<asp:Repeater ID="rptComments" runat="server">
[Code] ....
Now suppose if 3 questions are displayed on the webpage then 3 radiobuttonlists are displayed. I need to send the selected text of radiobuttons separately in my table in SQL Server on a button click event.
Suppose if selected answers are Very Poor, Average and Good then database entry should look like:
1 Very Poor
2 Average
3 Good
(.aspx.cs file)
protected void AddComment(object sender, EventArgs e) {
string constr = System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
string sqlStatment = "INSERT INTO FeedbackResponse(QUESTION_ID,RESPONSE) values(@QID,@RESP)";
using (SqlConnection con = new SqlConnection(constr)) {
using (SqlCommand cmd = new SqlCommand(sqlStatment, con)) {
con.Open(); cmd.Parameters.AddWithValue("@RESPONSE",this.rptComments.
cmd.ExecuteNonQuery(); con.Close();
} }
I am not sure what to do in the bold line.
Is there a way to bind RadioButtonList control inside of a ListView control that is bind to a SqlDataSource control?
View 8 Replieshave been trying to find radiobutton list in my content page which is in an update panel with no luck. I tried the below code:
Dim content As ContentPlaceHolder =
DirectCast(Me.Master.FindControl("ContentPlaceHolder1"),
ContentPlaceHolder)
[code]...
I am developing a website using asp.net and C#.I am using a RadioButtonList control. The code snippet for RadioButtonList is shown below
<asp:RadioButtonList ID="RLCompareParameter" runat="server"
RepeatDirection="Horizontal" meta:resourcekey="rsKey_RLCompareParameter"
AutoPostBack="True"[code]...
There is a button in the same page. While clicking on that button i want to display an alert message based on the selected radio list item using javascript. Some part of my javascript function is shown below
var RLCompareParameter = this.document.getElementById("<%= RLCompareParameter.ClientID %>");
if (RLCompareParameter.SelectedValue == "Forms") {
if (document.getElementById("<%= lbAvailableForms.ClientID %>").value == "") {[code]...
But the if(RLCompareParameter.SelectedValue == "some value") always false. i think there is no attribute like selected value for RadioButtonList control.
I am converting an old payment page from classic ASP to ASP.NET. The page includes three radio button options (credit card, purchase order, bill me). The old page uses javascript to enable/disable the appropriate input fields depending on which payment option is selected. For example, if the payment selection is changed from "credit card" to "purchase order", the credit card fields are disabled, and the PO number field is enabled.
I want to mimick this behavior using ASP.NET + server-side AJAX, so I created RadioButtonList for the payment options, and put all the data input controls (credit card number, purchase order number, etc.) within an UpdatePanel. The UpdatePanel has an AsyncPostBackTrigger with ControlID set to the RadioButtonList, and an EventName specified which tries to enable/disable the appropriate input fields depending on which payment option is selected. This doesn't seem to work because changing the radio button selection doesn't seem to fire this trigger.
Is it possble to utilize AsyncPostBackTrigger with a RadioButtonList control? If not can you suggest a way to handle this scenario for dynamically enabling/disabling form inputs?
My page is using the Master page. I am using TabContainer ajax control in my aspx page and have a TabPanel that contains a RadioButtonList control and a text box. I want to show/hide populate the text box based on on the selected value of RadioButtonList. I am able to populate values of all the controls on Page_load() but onlclick()event dos not get triggered. How can force onclick() JavaScript event to trigger for the default selected value of RadioButtonList?
View 1 RepliesHow can i make a control required to put input depending on the radiobuttonlist selection? Let me try to clarify a bit more. I got 2 radiobuttons, if one gets selected, nothing else has to be done. But if the otherone gets selected, a textfield must have some input too.
View 2 Repliesi have a user control that has a few inner controls like lables and images that represents a "movie".
from a web page i get a list of movies (List<Movie>) and for each movie in the list i want to generate my user control and add it to a panel.
(i added a movie type data member to the user control)
code (1):
List<Movie> movies = movieRepo.GetAllMovies();
I am building my first user control and am facing the following issue: my host page calls the user control:
protected
void DropDownList1_SelectedIndexChanged(object sender,
EventArgs e)
{
TextBoxRegExValidator1.DataTypeId = DropDownList1.SelectedValue;
}
I pass a string value (1,2,3,etc) via public method called "DataTypeId". The problem is that all the events in the control are fired first so dataTypeId is always null:
[Code]....
I am sure there are many ways to achieve my goal but since I am a beginner I dont know what they are. All I am trying to do is to have a user control TextBox which will work with a Listbox in a host page. The listbox will pass the data(1 - String; 2 - Xml) and so on. Then I change the regular expression in the user control and return that to the form. If there is an easier way to do that or a sample control out there which achieves the same goal.
I have a column in my database which contains null value. Now after retrieving value from database i want to store that value in my txtbox. I am getting
[DBTableFieldIsNullException: Field 'Title' is NULL] exception.
When trying to use the editor control i'm getting the following error:
Value cannot be null or empty.
Parameter name: elementID
Here's my HTML:
[code]....
I'm using asp.net 4 with ajax control toolkit for version 4.
I believe the error is talking about the routing I have. Is there something special I have to do if I want to use the toolkit and custom routing?
I am using Listview to display the data. for a real estate website,
the problem is when the property is for sale I need to show price of sale Asking_Price or when it is for Rent i should display the Rent Amount Rent_amount field and when it's for sale and for rent i want to showboth records.
[Code]....
I am stuck into a problem, i have a user control ProductListing.ascx that contains ListView binded to an object datasource, SelectMethod and SelectCountmethod are provided as well. Everything works fine but the problem started when i add another user control declarativlly Filter.ascx in the productListing.ascx. I want to assign value to a public property MaxPrice in Filter.ascx. I am trying to set this property in the SelectMethod of ObjectDataSource. Usercontrol "Filter.ascx" throws null reference exception when i try to set its MaxPrice Property.
I tried to acced the usercontrol in Databind method of ListView , it is accessible here but viewstate is empty at this point, i saved the value in viewstate in SelectMethod of objectDatasource but i cant access viewstate in ListView Databind. Its empty. Its a simple code and no rewriting to viewstate elsewhere.
Important: My Codebehind files are in a seperate project and .ascx files in seperate project
here is my latest bit of insanity. I'm using a formview control. In the insert template, I'm grabbing applicable values from my AD to populate a dropdown list. I select the user I want to insert, enter the other pieces of info required for my request and click Insert. The query responds back stating that the userid is NULL. So the big question in my mind is how can I bind userid to the dropdownlist if I'm populating that from the code behind? Here's my code behind code for that list:
[Code]....
I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
Basically, the user Selects a row on GV that executes an Insert into a table the GV cell values of the selected row.
The SQL field data type is varchar. If the GV field is Null, the Insert adds the value to the SQL field. How do I keep the @nbsp; from being displayed in the cell of a data control when it is called at a later time? Do I add some more asp to my control parameter? do I add some vb code behind? Here are some relevant code snippets of existing code.
[Code]....
[Code]....
I've got a detailsview control on a page. The table that it interacts with has a DateTime column in it. This column is nullable, and a lot of the records have null for that value. In the EditItemTemplate I've got a calendar control. When I try to put the DetailsView into edit mode, I get the following error message:
System.InvalidCastException was unhandled by user code
Message=Specified cast is not valid.
Source=App_Web_srpmlyjd
StackTrace:
at ASP.entries_aspx.__DataBinding__control44(Object sender, EventArgs e) in c:inetpubwwwrootMediaLibraryEntries.aspx:line 103
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBindChildren()
I am convinced that the problem is the null values in the DateTime column of the table. I've done some web searches on this, and some have suggested placing some dummy values into that column, but that seems more like a kludge, rather than a solution. How do I keep nulls in the table, and yet not have that preceeding error come up when a user tries to edit the selected record?
A common problem in repeater controls where you want to display data for update (like a list of user phone numbers that can be updated and submitted back to the database) is where to store the database unique row identifier. So, I created a custom Textbox control that I've added a Data property to. I populate this data property with the unique row id. The problem is that when I post back the list and go through the repeater items the control's data property is null. The custom control looks like this:
[Code]....
The tag in the repeater looks like this:
[Code]....
I have a custom checkbox with the same data property and it works fine. I actually put in the same repeater with the textbox control and the checkbox control have the row id on postback but the textbox did not. Is there some limitation on the textbox control that might be causing this.
