How To Get A Custom Made Set Of Checkboxes Return Values In The Postback
Apr 2, 2010
I have the following in an aspx page:
<td colspan="2">
<% DisplayParties(); %>
</td>
In the code behind for the aspx page, i have this (e.g. I build HTML for the checkboxes):
[code]....
Not my proudest moment, but whatever. The problem is that when this page posts back via some event on the page, I never get these tags in the Request.Form collection.
Is this simply how ASP.NET works (e.g. only server-side control post back) or am I missing something simple.
I have an ASP.NET TextBox with TextMode = TextBoxMode.MultiLine that is used within an AJAX Update Panel. The .Text value has been pre-set to a value that has multiple lines.
When using Chrome(7.0.517.41) or Firefox(3.6.11) working with the controls posted back value on the server the carriage return is lost if the user hasn't edited the pre-set value.
I've created loads of user controls, but this is my first time dealing with extending a server control. The problem I'm getting is that the base control's data is not being persisted across postbacks in a Master/Content page.I'm actually trying to get this working using a Telerik control (for my sins), but the same issue happens with a standard Web TextBox control. Code:
[Code]....
Now, I've copied the way I handle the control state as I do it with user controls (ControlState), and it isn't working. Can someone point me in the right direction please? All the examples I find refer to creating user controls, not extending existing controls. Specifically why nothing is being persisted on post back.
I am trying to add some JQuery animations before and after every postback request is made inside my UpdatePanel. What I have so far is something like this:
<script type="text/javascript"> $(document).ready(function () { Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler); Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginRequestHandler); function EndRequestHandler(sender, args) { if (args.get_error() == undefined) { // End Request (1) } } function BeginRequestHandler(sender, args) { // Start Request (2) } $('.MyButtons').live('click', function () { // Before request (3) }); }); </script> <asp:UpdatePanel runat="server"> <ContentTemplate> <asp:Button runat="server" CssClass="MyButtons"/> </ContentTemplate> </asp:UpdatePanel>
Let say I want to put some animation code at (3) that will be executed and then proceed with BeginRequestHandler function. How should I do that? Because right now the whole process executes 3,2,1 and I dn't know how to add that delay between steps 3 and 2. In other words I want to execute step 2 manually at step 3. Don't really want to use hidden buttons to do that.
On the me.LoadComplete event of my webpage, I am creating buttons dynamically from session arrays. After I add each button control to the page, I want to use the addhandler to call a custom sub I made. When I click any button though, nothing happens. Relevant code is below.
I have a login ascx module that needs to handle logged in users.
I am solving this by enabling Session("IdUser") to take Id_User from my database if login and password are correct.
Ok, this works rather OK, but I am using the same button for login and logout, so when I login user I need manualy to reload the page before handler me.load have new values for current session, does anybody know how I can solve this isue.
why when I create a checkbox using HTML.CheckboxFor the values remain after postback where as if I just create a simple HTML checkbox in HTML after postback the value is no longer there?
What is the difference between HTML.Checkbox vs. an HTML checkbox? Why does one retain the values after postback and one does not?
I currently have a group of check boxes with several checkall check boxes which once clicked selects all the check boxes in its group.. my question is once I need to get the values of which check boxes were clicked how do I do that and also how do I omit the checkall checkboxes from result?
I am working on a datagrid that has a column with checkboxes... the checkboxes should be checked when the page loaded. The problem is that whenever I trigger a postback, all the checkboxes will be unchecked!!
I don't know what is causing this or what should I do to prevent it from unchecking the checkboxes.
MVC contains a strong typed HTML Helper (HTML.CehckBoxFor()) this takes a bool and returns a bool. To make the URL smaller I am thinking to change the bool values on the model object to byte or somthing like that so the url only contains &Parameter=1.
I have found this snippet :
[Code]....
But I have no clue how to turn this in to a strong typed HTML Helper for checkbox that takes byte instead of bool. Its also important that the model object is set with byte instead of bool.
I currently have an accordion and I want each accordion to populate only if the user clicks on that header( partial accordion rendering ). How are people doing that nowadays? I know I can do it with updatepanels but have read bad things about update panels. Also just as an FYI each accrordion panel content pane will look the same ..It will have a thumbnail of the product..several checkboxes and a download button . The values or names of the checkboxes need to be generated so that I can then grab them and lookup those values in an xml file to find the location and then zip those files up and have user download it..I actually have all this working with all the content of the accordion being generated on server at load time but being that I'm trying to learn asp.net I figured I would give partial rendering a shot..I like the idea of only loading content for that accordion panel if user is interested in in. I also have a webservice running which displays hello world in the accordion panel content that trigger the network callback..That's fine but then I'm thinking ok now how do I build the checkboxes and html that I really need to send back and is this web service the correct solution. Another thought is using javascript to create elements as the data is retrieived from the web service..I'm just trying to do it the right way[URL]
Now i am having two dropdown one is asp dropdownlist and 2ND is MultiSelect-DropDownList-with-CheckBoxes. 2nd dropdown is populating on selected value of first.On page load it works fine. Now, on change of value in dropdown, selected index change 2nd dropdown (MultiSelect-DropDownList-with-CheckBoxes) fills but i see a list box instead of dropdown.
I need to check if ANY of the checkboxes are selected from the gridview.. if atleast 1 is selected, then continue, if none are checked then return the error message so they can make a selection, below is what i have.. if i have all checkboxes checked, then everything works, but if i only have 1 then it doesnt work..
I have created a really simple custom control to render panels into a page. The code is below. When I use my control and add any webcontrol to it, after each page postback the contents of these child controls vanishes.
I must have missed something really simple but run the example to reproduce this. Can anyone please enlighten me as to why the controls are being 'emptied' of their contents, and how I stop this occuring?
I am new to asp.net. I am trying to display some data from a database table using dynamic table in my page. I want to add checkboxes to a field in the database and would like to perform several tasks based on the values checked. The checkboxes are tied with the primary key field of the database. Here is the code snipet :
[Code]....
Now I have a button in my page. The functioanlity which I desire is on clicking that button I should be able to extract the values of checked checkboxes and perform some function.
This creates multiple check boxes on the form, and this works fine.
However, in the code behind for my button that the user clicks to execute the form, I cannot figure how how to read the values for the checkboxes. I've tried:
foreach (CheckBox cbxDrive in cbxDrives) { }
but cbxDrives is not recognized.
I need to read through all of the checkboxes to see their values, so that the appropriate actions can be performed in the code behind.
The program gives me a list of checkboxes but a user ID. then u user can change his selection and push the save button (id="btnSaveUserIntersts") and i am trying to save in the hidden textbox all the values of the checkboxes that was choosen.
The problem is that i am getting all the time the same selections that came form the database and not getting the new selection that the user made.
Does anyone know how to pass values from adynamically created gridview checkboxes to a crystal report?Is it possible? I am using asp.net, vb.net and mssql. Here's my grid minus a few boundfields:
