Web Forms :: Get Checkbox Value Javascript?
Mar 20, 2010[Code]....
how can i get the checkbox value to array object using javascript?
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how can i get the checkbox value to array object using javascript?
I need code to work in javascript disable for postback of checkbox. As i know with lots of google search that it is not possible..
View 6 RepliesI am binding a checkboxlist with a dataset (with these columns :
id,empname,resourceId,balanceId as columns) with datavaluefield as id and datatextfield as empname;
Now, i want to control the selection of the items. Say some thing like
1. "User should be allowed to check only say 5 items with same resourceId" using javascript
2. And in total he should select only 20 items (max 5 items for same resource id and max 15 items for the remaining)
How can we control this?
I am using Repeater and i have checkbox in every row. I have to post all the rows to a DB Table.
The problem is:When i uncheck a row and then press the save button , all the rows are getting saved.
I checked with debugger that actually i see the checkboxes unchecked , but the debugger shows them checked.
Checkboxes have JAvascript onclick events associated with them.
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My javascript function updates the labels on the page.My getvalues from repeater code is as follows. i am checking all the rows whether checked or unchecked.
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why checkboxes are showing always true whereas they should have been false (as they are unchecked).
I have found plenty of examples where the checkboxes to be checked are within a datalist, gridview or other datacontrol like that.. but i dont have that setup..
I have individual checkboxes within my page and need to provide a way to check or uncheck them all..
I cant use a checkboxlist because of the layout of the page.. so not sure if it would be easiest with javascript or do it with the checked event for the single check box that will be used..
I know that may not be the best or cleanest way, but is there a better way?
Reason i cant use a checkboxlist for the larger set of checkboxes, is that a few of them will have additional fields that need to be completed if they chose certain checkboxes.. so i have those controls next to the checkbox that they belong with..
I have a checkbox header in my gridview. My problem is I can't add a javascript when the user clicks the checkbox. What is wrong.
my gridview is
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On Row_DataBound I have
DirectCast(GridView1.HeaderRow.FindControl("Header"), CheckBox).Attributes.Add("onclick", "javascript:SelectAll();")
But I am getting an error of : Object reference not set to an instance of an object.
I also try
DirectCast(e.Row.FindControl("Header"), CheckBox).Attributes.Add("onclick", "javascript:SelectAll();")
<asp:GridView ID="GridViewRDR1_Hidden" runat="server" >
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chkRDR1Hidden" runat="server" AutoPostBack="true" onclick="javascript: calculateTotal();" />
</ItemTemplate>
</asp:TemplateField>
how do i write a javascript fucntion to check whether the checkbox was checked or not?
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when i use it on a empty webform it works nicely, however when i use it in a ListViews InsertItemTemplate it does not.get an error aying document.GetElementById is null and stops elowdocument.getElementById("CheckBoxListStr_0").checked = false
I have a gridview were one of the colunms has a checkbox for deleting that row. When the user open the page the delete button is set to enable = false. If the user checks one box the delete imagebutton is disable = false. That works, now I need to add Javascript to enable the Delete button if the user selects checkAll, how do I do that?
View 2 RepliesI'm using asp.net validation controls which work fine. I've since introduced an HTML checkbox which should be ticked before the form can be submitted. My function for this reads as follows:
function terms(form) {
var terms = document.getElementById("chkTerms").checked;
var errorsArray = new Array();
if (terms == false) {
//alert("Terms not checked (works)");
errorsArray.push("You must agree to the terms and conditions.");
if (errorsArray.length) {
document.getElementById("termsOutput").innerHTML = errorsArray.join("
") + "<br />";
return false;
}
}
else {
document.getElementById("termsOutput").innerHTML = "";
}}
It is called as follows:
<asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClientClick="return terms(form)" />
The problem I have is seems I can either use the asp.net validation OR the custom checkbox validation I wrote. After the form posts however, the asp.net validation fires!
I have an ASP.NET page with Javascript. I have some checkboxes and I want to give the user time to check and uncheck more then one box before the postback... so when the user tick/untick a check box the postback happens after 5 seconds. How can I do this? tryed different methods found online but all incomplete or wrong.
View 1 RepliesI have created a User Control with 4 check boxes(server control).I want to allow to check only one checkbox out of four.
The user control is loaded on page dynamically.I page may have multiple same UserConrol.
How do I do it using Jquey or Javascript?
n my aspx page i am having a checkbox list ..It has binded values from a table..
I need to validate the checkbox list ..I tried the following script
var checkBoxCount = 0;
var elements = document.getElementById('<%=ChkBoxList.ClientID%>');
for(i=0; i<elements.length;i++)
{
if(elements[i].checked)
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am having trouble with some javascript that isn't working as it should. I have a table with 6 rows in it. There are 3 rows with a checkbox in them and 3 rows with a dropdownlist. The order is cb ,ddl, cb, ddl, cb ,ddl. The ddl rows are all hidden in th beginning using style="display: none;". When the user checks a checkbox, the ddl row below should appear. But this is not happening, instead it happens when i uncheck it.
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i want that when a checkbox is checked then it should allow user to write something in a txtbox. initially the txtbox is disabled. what i should write inside the function using jquery
View 4 RepliesI have 5 asp.net checkboxes in webform ...i want as the checkboxes checked and unchecked then its text will be added in textbox i.e if checkbox 1 and checkbox9 will be checked then in textbox the text will be 1,9 and if checkbox1 is unchecked then the textbox text will be 9. How to do this using javascript, vb.net or Jquery
I dont have any idea how to do it ...
CODE I FOUND :
<script type="text/javascript">
function Test(control, value) {
var str = '';
$('#<%=txtTest.ClientID %> :checked').each(function() {
str = str + ', ' $(this).val();
});
$('#<%=txtTest.ClientID %>').val(str);
</script>
I am trying to enable/disable textbox when checkbox is checked (enable) or unchecked (disable). WIth the piece of code i have nothing is happening once the checkbox is checked/unchecked.
Here is what I have:
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="AssociationInfo.ascx.cs" Inherits="Administration.Modules.AssociationInfo" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<script type="text/javascript" language="javascript">
function enableTextBox() {
window.onload = function () {
var check = document.getElementById("chkAssociation");
check.onchange = function () {
if (this.checked == true)
document.getElementById("txtAddress").disabled = false;
else
document.getElementById("txtAddress").disabled = true;
};
};
}
</script>
<div>
<h2>Association Info</h2>
<br />
<asp:CheckBox Checked="false" ID="chkAssociation" runat="server" />
<asp:TextBox ID="txtAddress" Text="Test" runat="server" />
</div>
The code is in web user control. Could that be reason why is not working correctly?
ASP.NET3.5 Webforms. Am trying to put a validator on the drop down list, only if the checkbox is checked.
This doesn't work. If I put an alert in the onclick event, it does show.
<script language="javascript" type="text/javascript">
function setVal(sender) {
var myVal = document.getElementById('<%=(DropDownList)CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("ddlSupplierCouncilArea")%>');
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I have a simple asp:RadioButtonList within a form tag but for some reason it isn't keeping it's value on postback
Here's what I've got
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Here is my situation. I have inherited an MVC 2 application. I am learning MVC 2 on the fly with this application. I am trying to validate a checkbox by doing this: Grey out the submit button until the user clicks on the "checkbox" then the submit button is enabled. 1st question: Where do I place the code to make this happen? 2nd Question: How do I go about doing what I explained? I wanted to use a simple javascript code within the click event of the checkbox but I don't see this in MVC 2.
View 4 Repliesnote that the scenario is ASP.NET Webforms + Master - Content page which mess up the ids.
I have, say, three checkboxes
<asp:CheckBox ID="chkConsultantQuality" runat="server"
CssClass="company"/>
<asp:CheckBox ID="chkConsultantEnvironment" runat="server"
CssClass="company"/>
<asp:CheckBox ID="chkConsultantSafety" runat="server"
CssClass="company"/>
I would like to make a div id="CompanyPanel" on click event of each checkbox according to the following condition
visible if any of the checkboxes are checked.
hidden if all of the checkboxes are unchecked.
I am planning to use jQuery since I am selecting by class name. I could do it with jQuery.each on the class='company' by checking each for a checked flag.
I want to change back color of repeater row when a particular row check box is checked client side or whenever a row td is clicked.
View 1 RepliesI have a checkbox which in some cases may be disabled and checked using javascript, i.e:
var cbTest = document.getElementById("CheckBoxTest");
cbTest.disabled = true;
cbTest.checked = true;
However, when sending a postback, CheckBoxTest.Checked is false on the server side.
Is it possible to disable the checkbox and still have the server side recognize it as checked?
I have multiple gridview in my page and every grid has a column "Select" which contains checkbox through which I am selecting a particular row.Now what I want to do that when I click Checkbox (Check or Uncheck) of any gridview it give me Id of Gridview through which it is associated.All I want to do this using javascript.
View 1 RepliesIn my asp.net website; i have REPEATER control having child control checklistbox , dynamically generates in code behind.I would like to know how can i write javascript function where i have to check at least one checkbox should be checked.
View 2 Replies