I would like to set the value of my label (or div) as an element and not text.
Example, this code creates a list of checkboxes as followed in this post How to use Checkbox inside Select Option :
<asp:Label runat="server" id="checkboxesList">
<label for="one">
<input type="checkbox" id="one" />First checkbox</label>
<label for="two">
<input type="checkbox" id="two" />Second checkbox</label>
<label for="three">
<input type="checkbox" id="three" />Third checkbox</label>
</asp:Label>
I need to create my List in CodeBehind and not directly in ASPX I tried :
checkboxesList.Text = "<label for=\"one\"> < input type = \"checkbox\" id = \"one\" /> First checkbox </ label > <label for= \"two\" > < input type = \"checkbox\" id = \"two\" /> Second checkbox </ label >";
Doing so it only prints as a string and do not create the differents labels.
How to implement it from the code behind having just :
<asp:Label runat="server" id="checkboxesList">
</asp:Label>
It's not necessary to use server-side controls to generate all HTML elements. It is possible to use HTML directly for container elements. Use server-side controls only for elements that should be accessible from server code.
<div id="checkboxes">
<label>
<asp:CheckBox ID="one" runat="server" Text="First checkbox" />
</label>
<label>
<asp:CheckBox ID="two" runat="server" Text="Second checkbox" />
</label>
<label>
<asp:CheckBox ID="three" runat="server" Text="Third checkbox" />
</label>
</div>
The snippet allows you to get/set values and text of checkboxes on server-side. Also you will be able to add server-side click event handler for each of the checkbox.
Note, the for attribute is used to bound the <label> with <input> that is not placed inside the <label>. Moreover the attribute is not supported by IE. So, in your case it is possible to place checkboxes into labels instead of using of for attribute.
Also you need to know the HTML id attribute in general case is not equal to ASP ID value. Therefore, if you want to link controls using for attribute, then set id attribute value through ClientID property.
Thank you all for the answers.
I've finally decided to use a CheckBoxList :
<asp:Label runat="server" id="LabelList">
<asp:CheckBoxList runat="server" ClientIDMode="Predictable" DataValueField="Value" DataTextField="Name" ID="specificInfoListControl" Width="150">
</asp:CheckBoxList>
</asp:Label>
And I retrieve the values with :
foreach (ListItem item in specificInfoListControl.Items)
{
if (item.Selected)
{
}
}
Related
<asp:Repeater runat="server" ID="Repeater1" OnItemDataBound="countryDataBound">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<div class="accordion">
<span><h3><%# Eval("key") %>
<div class="panelCountry">
<input type="checkbox" runat="server" class="chbSelectAll"/><label>SelectAll</label>
<asp:CheckBoxList
ID="chbListCountries"
CssClass="chbList"
RepeatColumns="4"
RepeatDirection="Horizontal"
DataTextField ="Name"
DataValueField = "CountryCode"
runat="server">
<asp:ListItem></asp:ListItem>
</asp:CheckBoxList>
</div>
</div>
</ItemTemplate>
<FooterTemplate>
</FooterTemplate>
</asp:Repeater>
I have a dialog containing a repeater of all the countries in the world grouped by continent. Each continent is separated by a jquery accordion. Inside each accordion there is a checkboxlist of countries, with a checkbox at the top that functions as a select all. I need to have the label associated with the select all, be responsive. By this i mean if i click the label i need to be able to trigger the checkbox to select all.
I considered
<label for="IDHERE">Select all</label>
I cannot however figure out how to correctly target the checkbox so that when i click the specific label it only selects the check boxes in this specific checkboxlist.
Is there anyway to create an ID for each "select all" checkbox that is unique from the other seven so that when the label is clicked on it correclty selects the checkboxes in its respective accordion.
for reference, when the checbox is clicked this javascript runs:
$(document).on('change', '.chbSelectAll', function (e) {
var selectAllValue = $(this).prop('checked')
var panel = $(this).closest('.panelCountry');
var checkboxes = panel.find('input[type=checkbox]:not(.chbSelectAll)');
checkboxes.prop('checked',selectAllValue);
});
Visual view of the problem
If you don't need the runat=server tag you can create your own label for= by using the ItemIndex.
<input type="checkbox" class="chbSelectAll" id="CheckBox_<%# Container.ItemIndex %>" />
<label for="CheckBox_<%# Container.ItemIndex %>">SelectAll</label>
But why not use an aspnet CheckBox? Then you won't have that problem anyway.
<asp:CheckBox ID="CheckBox1" runat="server" Text="SelectAll" CssClass="chbSelectAll" />
I have following input tags inside table in asp.net
<td class="style18">
<asp:CheckBox ID="chkContentTone" onclick="enableGroupBoxTone()"
runat="server" Text="Content Tone" CssClass="ChkBoxStyle"/>
</td>
<td class="styleCntTon">
<input type="radio" id="rdBtnPositive" name="q2" title="Posotivetitle" value="positive"/>
<label for="rdbtnPositive" class="RadioGroup">Positive</label>
<input type="radio" id="rdBtnNegative" name="q2" title="Negativetitle" value="negative"/>
<label for="rdBtnNegative" class="RadioGroup">Negative</label>
<input type="radio" id="rdBtnNeutral" name="q2" title="Neutraltitle" value="neutral"/>
<label for="rdBtnNeutral" class="RadioGroup">Neutral</label>
</td>
but when I put an if condition in, the radio button's the show an error.
Any ideas why this is occurring?
Try to use Asp.net controls:
<asp:RadioButton runat="server" ... />
The markup you posted does not include server side controls hence those controls cannot be accessed via server side code.
Looking at what you want seems like you would need an asp:RadioButton
once you add a asp:radiobutton you can access these controls in your server side code.
Change this:
<input type="radio" id="rdBtnPositive" name="q2" title="Posotivetitle" value="positive"/><label for="rdbtnPositive" class="RadioGroup">Positive</label>
To this:
<asp:RadioButton id="rdBtnPositive" Label="Positive" runat="server" />
Then you can do:
if(rdBtnPositive.Checked)
{
//code it...
}
You'll need to do that for all three radiobutton's, each should have a unique id and be a server side control, namely asp:RadioButton.
you should use asp:RadioButton to be able to access in code behind.
So basically replace all "input" tags with "asp:RadioButton" and remove non sensible properties like Type.
asp:RadioButton usage example
It's possible check if one of radio buttons named of 'foo' is selected? For example:
<input type="radio" name="foo" id="baa" value="..." runat="server" />
<input type="radio" name="foo" id="baa1" value="....." runat="server" />
the question is: Is there some <asp:.. that can test if one(not both, only one can be selected) of above checkbox if selected?
I hope this is clear. Thanks in advance.
EDIT
For you requirement it better to go for RadioButtonList with RequiredFieldValidator. Below is example
<asp:RadioButtonList
ID="RadioButtonList1"
runat="server"
RepeatColumns="3">
<asp:ListItem>abcd</asp:ListItem>
<asp:ListItem>xyz</asp:ListItem>
</asp:RadioButtonList>
<asp:RequiredFieldValidator
ID="ReqiredFieldValidator1"
runat="server"
ControlToValidate="RadioButtonList1"
ErrorMessage="select atleast one radiobutton!">*
</asp:RequiredFieldValidator>
You need to group radio button GroupName="foo" is group in which two radio button resides , so at a time only one get slected
<asp:panel runa="server" id="container">
<asp:RadioButton id="Radio1" GroupName="foo"
Text="Beef" BackColor="Pink" runat="server"/>
<br />
<asp:RadioButton id="Radio2" GroupName="foo"
Text="Pork" BackColor="Pink" runat="server"/>
</asp:panel>
Note even in your html you need to specify groupname for the radio button to select one out of the group of radio button
To check ratio button selected or not just use this linq operation
bool isradchecked=container.Controls.OfType<RadioButton>)
.Any(r => r.Checked);
here container of radiobutton is Asp:Panel.
I am using asp.net C#
I am also using the jQuery UI Calendar control.
calendar control
It appears the calendar control wants to work with an input control with an ID of "datepicker".
<input type="text" id="datepicker" />
I want to use value of the input control in my code behind but seeing how it is not an asp.net control I am not sure how I can reference it in the code behind.
Does anyone know how to get the value of the input control in the code behind?
use
<input type="text" id="datepicker" name="datepicker" />
and in the code behind:
Request.Form["datepicker"]
In fact, Form property of Request is populated with form values.
Here you have to mention your form name which contains input tag
<input name="txtemail" id="txtemail" runat="server" type="text" class="cssspa" form="form"/>
in C#
string email = txtemail.Value.ToString();
now u can get data from textbox
If you want to use basic form pulling, you need to add a name attribute:
<input type="text" id="datepicker" name="datepicker" />
if(Page.IsPostBack)
{
string value = Request.Form["datepicker"];
}
Alternatively, you can mark is as an HtmlInputControl
<input type="text" id="datepicker" runat="server" />
System.Web.UI.HtmlControls.HtmlInputControl datepickerControl = this.FindControl("datepicker") as System.Web.UI.HtmlControls.HtmlInputControl;
if(datepickerControl != null)
string value = datepickerControl.Value;
You can access the value via the Request object like onof wrote, or you can turn every html tag into a server control by adding the attribute runat:
<input type="text" id="datepicker" runat="server" ClientIdMode="static" />
The attribute ClientIdMode="static" ensures that the tags ID is not changed by the ASP.NET runtime.
Then you can access the input by the autogenerated member datePicker.
Since you explicitly say code-behind, I assume you probably want to stay with the WebForms/Controls model? With clientidmode you can do that while also having a determinite id value for the calendar.
<asp:TextBox id="datepicker" ClientIDMode="Static" runat="server" />
Then you can interact directly with the control from the code-behind as normal.
But, the calendar control does not require a specific ID. You can initialize it with whatever ID you want
<asp:TextBox id="DateTextBox" runat="server" />
<script>
$(function() {
$( "#<%=DateTextBox.ClientID%>" ).datepicker();
});
</script>
I am working on adding a modal popup to ASP.NET pages. The popup will give the user some textboxes to fill in, with a Cancel and Submit button.
The issue I'm running into is that the textboxes are being created dynamically, as the number of textboxes needed and what they are asking for will change depending on what is clicked on the page. When attempting to retrieve the values that have been entered after clicking Submit on the modal window (which is not tied to the modal window so that it will do a postback), the textboxes are gone by that point and the data cannot be retrieved.
Here's the code for the modal popup:
<div id="divModalContainer">
<div id="PromptContentHeader">
<asp:Label ID="lblHeader1" runat="server">
</asp:Label>
<br />
<asp:Label ID="lblHeader2" runat="server">
</asp:Label>
<asp:Label ID="lblPassFileName" runat="server">
</asp:Label>
</div>
<!--<ul id="ulTabModalPrompt" class="tabnav" runat="server">
</ul>-->
<div id="divModalPrompts" runat="server">
<table id="PromptTable" runat="server">
</table>
</div>
<div id="divModalButtons" style="width:230px;">
<div style="float:left">
<asp:Button ID="btnCancelDocPrompts" runat="server" Text="Cancel" OnClick="btnCancelDocPrompts_Click" />
</div>
<div style="float:right">
<asp:Button ID="btnSubmitDocPrompts" runat="server" Text="Submit" OnClick="btnSubmitDocPrompts_Click" />
</div>
</div>
</div>
</asp:Panel>
<ajaxtoolkit:ModalPopupExtender ID="modalDocPrompt" runat="server"
TargetControlID="btnOpenPromptWindow"
PopupControlID="panelPrompts"
OkControlID="btnHiddenOkButton"
CancelControlID="btnCancelDocPrompts"
BackgroundCssClass="ModalPromptBackground"
DropShadow="true" />
<asp:Button ID="btnOpenPromptWindow" runat="server" Text="Test Modal" Style="display: none;" />
<asp:Button ID="btnHiddenOkButton" runat="server" Text="Test Modal" Style="display: none;" />
Before the modal popup is shown, rows will be added to PromptTable, with a label and textbox in each row.
The btnSubmitDocPrompts_Click method will attempt to go through each row in PromptTable and retrieve the values entered, but once Submit is clicked, there are no rows anymore.
Thanks for the help!
You could try using JavaScript to write the values of the textboxes to a HiddenField (which will get posted back if it exists when the page loads).
You'll have to encode the values and comma-separate them (or similar), then parse the values out server-side.
Edit: Example
OK, I'd personally use jQuery for the JavaScript part, but I'll assume you're doing it 'raw'.
Say your markup (with a few added dynamic textboxes) looks like this:
<input type="hidden" id="hdnFormValues" />
<div id="dynamicForm">
<div id="textBoxArea">
<input type="text" id="newField1" /><br />
<input type="text" id="newField2" /><br />
<input type="text" id="newField3" /><br />
<input type="text" id="newField4" /><br />
</div>
<input type="submit" onclick="saveValues()" value="Save Values" />
</div>
and you have a JavaScript function that looks like this:
function saveValues()
{
theBoxes = document.getElementById('textBoxArea').getElementsByTagName('input');
hdnValues = document.getElementById('hdnFormValues');
hdnValues.value = "";
for(var i = 0; i < theBoxes.length; i++)
{
hdnValues.value += escape(theBoxes[i].value) + '|';
}
}
Then when the submit button gets pressed, the value of the HiddenField will become a pipe-delimited string of encoded values.
For example, if text boxes 1 through 4 had the values:
I'm
encoding
dynamic
values!
then the HiddenField's value would become I%27m|encoding|dynamic|values%21|
Remember, you'll need to output the function above from ASP.NET server side. Look at the ScriptManager documentation for how to do this. The reason is that the HiddenField's ID will be dynamic, so you can't (reliably) predict it before runtime.
Finally, in your server-side code that recieves the postback, you split out the delimited string and unencode it, then do what you want with the values.
The biggest caveat here is security and validation - although I've encoded the string, you need to do your own validation and security checks!