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>
Related
Hi I am using input type text in login page but in aspx.cs page is not working
input control give the error. here is my .aspx Page-
<input type="text" id="txtloginname" name="txtloginname" required value="Username" onblur="if(this.value=='')this.value='Username'"
onfocus="if(this.value=='Username')this.value='' " /></p>
and Here is my aspx.cs page
SessionInfo.LoginName = txtloginname.Value.Trim();
SessionInfo.DisplayName = txtloginname.Value.Trim();
it gives the error Like --
The name 'txtloginname' does not exist in the current context
Input type "text" is pure html control, it is not available in server side. If you want these in server side, Add attribute runat="server" and in server side you can find these control as html Control.
if it is in master page do the following
System.Web.UI.HtmlControls.HtmlInputText txtLogin = this.Master.FindControl("FeaturedContent").FindControl("txtloginname") as System.Web.UI.HtmlControls.HtmlInputText;
not in master page
System.Web.UI.HtmlControls.HtmlInputText txtLogin = this.FindControl("txtloginname") as System.Web.UI.HtmlControls.HtmlInputText;
SessionInfo.LoginName = txtLogin.Value.Trim();
SessionInfo.DisplayName = txtLogin.Value.Trim();
OR
You can use jquery onchange event to get the textbox value and assign it to a asp hidden field, Now the hidden field with the textbox value is available in server side.
there are two ways of doing this for getting the value of input type in aspx page.
1)code for aspx page
<form id="form1" runat="server">
Name:
<input type="text" id="txtName" name="Name" value="Username" onblur="if(this.value=='')this.value='Username'"
onfocus="if(this.value=='Username')this.value='' " />
<br />
Email:
<input type="text" id="txtEmail" runat="server" value="" />
<br />
<br />
<asp:Button ID="Button1" Text="Submit" runat="server" OnClick="Submit" />
In aspx.cs page code
protected void Submit(object sender, EventArgs e)
{
string name = Request.Form["Name"];
string email = txtEmail.Value;
}
there are two text boxes in example and two ways to get text value .
you can use any one you like
you are getting error because for running server side code you need to add attribute runat="server" in the input control
I have an ASPX page with an input element. On page load I set the value of that input element. Later on I try to get the contents of that field using the elements id(using javascript) but it fails because the id has been changed. Is there any way to stop C# from changing the elements id?
input element:
<input id="conferenceDate" runat="server" style="width:100%;" />
Setting the date in the Page_Load function:
conferenceDate.Value = DateTime.Now.ToString();
The id after the element vale has been set:
<input name="ctl00$PlaceHolderMain$conferenceDate" type="text" id="ctl00_PlaceHolderMain_conferenceDate" style="width:100%;" value="7/21/2014 11:30:55 AM" />
UPDATE: I have tried the following but neither work the id is still changed:
<asp:TextBox ID="conferenceDate" runat="server" ClientIDMode="Static" />
and
When I try to select them later with jQuery I have to use the altered id:
$("ctl00_PlaceHolderMain_conferenceDate").val()
In addition to setting the ClientIDMode to static, you can also find the id using the ClientID property.
<%= conferenceDate.ClientID %>
Using your sample information you can find it like this:
Single or double quotes and dont forget the hash mark (or dot if its a class).
$("#<%= conferenceDate.ClientID %>").val()
Try setting the ClientIDMode of the Textbox to "Static" (More info: http://msdn.microsoft.com/en-us/library/system.web.ui.control.clientidmode(v=vs.110).aspx):
<input id="conferenceDate" runat="server" ClientIDMode="Static" style="width:100%;" />
You can set the ClientIDMode to Static.
This will prevent the controls ID from changing at runtime.
E.g:
<asp:TextBox ID="conferenceDate" runat="server" ClientIDMode="Static" />
Why not to use the asp:textbox and set the ClientIDMode to static?
<asp:TextBox ID="conferenceDate" runat="server" ClientIDMode="Static"></asp:TextBox>
My .aspx looks like the following:
<div id="valueIntroduction" type="text" class="labelarea" runat="server">
<input name="$labeluniversityid" type="text" id="labeluniversityid" style="color:#7D110C;border:0;background-color:#C0D5F2;width:100%" />
</div>
.cs File looks like:
if (results.Read())
{
labeluniversityid.value = results["TEXT_CONTENT"].ToString();
}
Exactly what am trying do is am getting the data from the database and displaying it in the valueIntroduction div. That is workiing fine. Now i added a text box with readonly mode. So that in my page if I press EDIT button, the value could be edited.
Use a TexBox component:
<asp:TextBox ID="labeluniversityid" runat="server" CssClass="yourcssclass"></asp:TextBox>
As for the styling:
.yourcssclass
{
color:#7D110C;
border:0;
background-color:#C0D5F2;
width:100%
}
Then, in your code behind you can easily use it like this:
labeluniversityid.Text = results["TEXT_CONTENT"].ToString();
Keep in mind that ASP.NET Controls are translated into common HTML tags, so you can wrap it and style it as you would with any other normal input of type text.
Also: type="text" is not valid for div
Try putting runat="server" attribute in <input id="labeluniversityid"> tag.
Or use a <asp:TextBox> control as areks suggests.
You need to add -
runat="server"
to your input field
Or, even better, use an
<asp:textBox ..>
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
The catch is this is a .NET 1.0 project and there is no hidden field control...
So this is out of the question:
<asp HiddenField Runat="server" ID="hdn" />
I vaguely remember some type of HtmlHiddenInput class that allowed similar functionality...does anybody know how to do this?
Thanks.
You can use a regular input or create a custom server control.
<input type="hidden" runat="server" />
You can use <input type="hidden" Name="HiddenControl" runat="server" />
and at code behind page use below code:
protected System.Web.UI.HtmlControls.HtmlInputHidden HiddenControl;
You can assign value to hidden control:
HiddenControl.value="Your value";
just use an asp textbox and the visible=false property