Web Forms :: Validating Radio Buttons With Custom Validator Within A Masterpage?
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:
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
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.
I'm adding RequiredField validators to a group of RadioButtonList controls, and something strange is happening when the page loads. The page renders just fine with no validators tripped, but as soon as I click on one of the radio buttons, the validator for that RadioButtonList fires and shows me the error message. I initially thought that maybe the various validators were cross-linked, so I tried clicking on a radio button in every list, but they all react the same. Here's the code that generates the whole thing:
You can see I have two checkboxes and two radio buttons, My problem is that on my submit button click I want to check whether user have checked at-least one checkbox or radio button. It will be good if we can have .NET solution like (customvalidator).
I created my custom validator in one project, something like that:
[Code]....
he composite control in another project. I added a reference of the custom validator project to the composite control project. I have a textbox in a composite control and I would like to validate this textbox by the composite control I created. But how can I do that? How can I create the custom validator instance that is linked to the custom validator I created?
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.
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
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.
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.
I am using javascript for customValidator to validate textboxes in ASP.Net. The code works perfectly when I am using a normal page, but as soon as I put that inside a MasterPage, the code doesn't work. Below is the code for my aspx page. If I put this code inside a MasterPage it doesn't work.
<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <script type="text/javascript"> function validateOrFields(source, args){ var sUser = document.getElementById('TextBox1'); if (sUser.value == "") { args.IsValid = false; } else { args.IsValid = true; } return; } <div> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:CustomValidator ID="FieldValidator" runat="server" Text="Enter either a user name" ClientValidationFunction="validateOrFields" onservervalidate="FieldValidator_ServerValidate"/> <asp:Button ID="Button1" runat="server" Text="Button" /> </div> </form> </body> </html>
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?
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?
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
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.
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.
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?
I have 3 tabs with 3 seperate gridview and radios buttons in them. Each page has a seperate submit button, but for some reason each pages submit button is validating all the radio buttons on each tab, i picked the seperate controls to validate under but on any submit theya re all validated instead of just the ones on that tab.
"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)..
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.
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:
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:
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
