is there any good free/open source time picker control that goes well with ASP.NET Calendar control?
The answer to your question is that Yes there are good free/open source time picker controls that go well with ASP.NET Calendar controls.
ASP.NET calendar controls just write an HTML table.
If you are using HTML5 and .NET Framework 4.5, you can instead use an ASP.NET TextBox control and set the TextMode property to "Date", "Month", "Week", "Time", or "DateTimeLocal" -- or if you your browser doesn't support this, you can set this property to "DateTime".
You can then read the Text property to get the date, or time, or month, or week as a string from the TextBox.
If you are using .NET Framework 4.0 or an older version, then you can use HTML5's <input type="[month, week, etc.]">; if your browser doesn't support this, use <input type="datetime">.
If you need the server-side code (written in either C# or Visual Basic) for the information that the user inputs in the date field, then you can try to run the element on the server by writing runat="server" inside the input tag.
As with all things ASP, make sure to give this element an ID so you can access it on the server side.
Now you can read the Value property to get the input date, time, month, or week as a string.
If you cannot run this element on the server, then you will need a hidden field in addition to the <input type="[date/time/month/week/etc.]".
In the submit function (written in JavaScript), set the value of the hidden field to the value of the input type="date", or "time", or "month", or "week" -- then on the server-side code, read the Value property of that hidden field as string too.
Make sure that the hidden field element of the HTML can run on the server.
In the textbox add this:
textmode="Date"
It gives you nice looking Datepicker like this:
Other variations of this are:
textmode="DateTime"
It gives you this look:
textmode="DateTimeLocal"
JQuery has the best datepicker IMHO. While it's not specific to .Net is still works great.
HTML:
<input type="text" value="9/23/2009" style="width: 100px;" readonly="readonly" name="Date" id="Date" class="hasDatepicker"/>
In head element:
<script src="../../Scripts/jquery-1.3.2.min.js" language="javascript" type="text/javascript"/>
<script src="../../Scripts/jquery-ui-1.7.1.custom.min.js" type="text/javascript"/>
Simple as that!
Since it's the only one I've used, I would suggest the CalendarExtender from http://www.ajaxcontroltoolkit.com/
This is solution without jquery.
Add Calendar and TextBox in WebForm -> Source of WebForm has this:
<asp:Calendar ID="Calendar1" runat="server" OnSelectionChanged="DateChange">
</asp:Calendar>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
Create methods in cs file of WebForm:
protected void Page_Load(object sender, EventArgs e)
{
TextBox1.Text = DateTime.Today.ToShortDateString()+'.';
}
protected void DateChange(object sender, EventArgs e)
{
TextBox1.Text = Calendar1.SelectedDate.ToShortDateString() + '.';
}
Method DateChange is connected with Calendar event SelectionChanged. It looks like this:
DatePicker Image
<asp:TextBox ID="TextBox1" runat="server" placeholder="mm/dd/yyyy" Textmode="Date" ReadOnly = "false"></asp:TextBox>
<asp:Button ID="btnSave" runat="server" Text="Save" onclick="btnSave_Click" />
Basic Date Picker Lite
This is the free version of their flagship product, but it contains a date and time picker native for asp.net.
Try bootstrap-datepicker if you are using bootstrap.
There is an easy, out of the box implementation: the HTML 5 input type="date" and the other date-related input types.
Okay, you can't style the controls that much and it doesn't work on every browser, but still it can be a very good option in the long term if all modern browsers support it and don't want to include heavy libraries that don't always work that good on mobile devices.
#Html.EditorFor(model => model.Date, new { htmlAttributes = new { #class = "form-control", #type = "date" } })
this works well
If you would like to work with a textbox, be aware that setting the TextMode property to "Date" will not work on Internet Explorer 11, because it does not currently support the "Date", "DateTime", nor "Time" values.
This example illustrates how to implement it using a textbox, including validation of the dates (since the user could enter just numbers). It will work on Internet Explorer 11 as well other web browsers.
<asp:Content ID="Content"
ContentPlaceHolderID="MainContent"
runat="server">
<link rel="stylesheet"
href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css" />
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$(function () {
$("#
<%= txtBoxDate.ClientID %>").datepicker();
});
</script>
<asp:TextBox ID="txtBoxDate"
runat="server"
Width="135px"
AutoPostBack="False"
TabIndex="1"
placeholder="mm/dd/yyyy"
autocomplete="off"
MaxLength="10"></asp:TextBox>
<asp:CompareValidator ID="CompareValidator1"
runat="server"
ControlToValidate="txtBoxDate"
Operator="DataTypeCheck"
Type="Date">Date invalid, please check format.
</asp:CompareValidator>
</asp:Content>
Related
Got weird problem. I have simple page with TextBox:
<asp:ScriptManager runat="server" />
<asp:UpdatePanel runat="server">
<ContentTemplate>
<asp:TextBox ID="amountTextBox" runat="server" TextMode="Number" />
<asp:Button runat="server" Text="Confirm" OnClick="confirmButton_Click" />
</ContentTemplate>
</asp:UpdatePanel>
After Button click I try to get TextBox value:
public partial class test : Page {
protected void confirmButton_Click(object sender, EventArgs e) {
var answer = amountTextBox.Text;
}
}
but it's empty. If I remove UpdatePanel, I manage to get the value. If I leave UpdatePanel and remove TextMode property, I manage to get the value. But why can't I have TextBoxt with TextMode set to Number in UpdatePanel?
It is a known issue, a fix is available in .NET 4.5 RTM.
Description
HTML5 has new types for the input tag, such as type="number", which is
needed to make mobile phones display a numerical keyboard instead of a
text keyboard. When doing a full postback of the page it works in all
browsers. But if I puts these in an updatepanel on a website to do a
partical postback, then none of the new HTML input types are included
in the postback response to the server from those browsers that
understands these new types (Safari/WebKit and Opera). It works
correctly in IE8 and Firefox 4, but probably only because they have
not implemented these new types and falls back to understanding it as
a type="text" field.
Here is another question with this issue and workarounds: UpdatePanel with input type other than text in html5.
What is the step to get example text to show up in an asp.net textbox.
For example, textbox w/ ID = "textboxDate" has [mm/dd/yyyy] inside it for the user to reference.
I believe you want a placeholder attribute:
<asp:TextBox ID="placeholderTextBox" runat="server" placeholder="mm/dd/yyyy"></asp:TextBox>
but placeholder doenst work for many IE browser because placeholder is html5 thing.
try to use modernizr framework. it works for all browsers including all IE
here is a sample code for you.
if(modernizr.input.placeholder) {
//insert placeholder polyfill script here.
}
Visual Studio maybe not knowing the attribute. Attributes which are not registered with ASP.net are passed through and rendered as is.
<asp:TextBox ID="TextBox1" runat="server" Width="187px" placeholder="mm/dd/yyyy"></asp:TextBox>
So the above code (basically) renders to:
<input type="text" placeholder="mm/dd/yyyy"/>
You can allways use:
<input ID="placeholderTextBox" type="text" runat="server" placeholder="mm/dd/yyyy" />
and on code behind you can get or set the value using
Dim myValue As String = placeholderTextBox.value or placeholderTextBox.value = "whatsoever"
Basically, I just want allow select dates greater than today. I'd prefer this way to avoid show alert messages.
I don't think that it is supported in the current version of the Toolkit to restrict selectable dates. This is a simple workaround handling the ClientDateSelectedChanged-Event and validate the selected date:
How to make sure user does not select a date earlier than today or greater than today
There could be instances where you do not want the user to select a day earlier than the current date. For example: when you are providing the user a form to book tickets, you would not like him to choose an earlier date. To achieve this requirement, use the following javascript code.
Prevent the User from selecting a Date Earlier than today
<head runat="server">
<title>Calendar Extender</title>
<script type="text/javascript">
function checkDate(sender,args)
{
if (sender._selectedDate < new Date())
{
alert("You cannot select a day earlier than today!");
sender._selectedDate = new Date();
// set the date back to the current date
sender._textbox.set_Value(sender._selectedDate.format(sender._format))
}
}
</script>
</head>
Call the code:
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<cc1:CalendarExtender ID="CalendarExtender1"
runat="server" OnClientDateSelectionChanged="checkDate" TargetControlID="TextBox1" />
</div>
</form>
Select Date Greater than today
In the javascript, just change this line
sender._selectedDate > new Date()
Note: You may argue that the user can still change the date by typing into the textbox or entering an invalid date. Well that can be easily handled using a ValidationControl and is covered in the next tip.
Add validation to the CalendarExtender Control
A simple way to add validation to the Calendar is to add a ValidationControl to the textbox associated with a CalendarExtender. You have two choices:
Add an Extender to the ValidationControl. To do so, drag and drop a ValidationControl > click on the smart tag of the ValidationControl > choose Add Extender. From the Extender Wizard, choose ValidatorCalloutExtender. Using this approach makes it extremely easy to discover and attach control extenders to your controls. In VS 2005, you had to do this process manually, by wiring up control extenders.
You can choose not to add the Extender.
We will go ahead with option A. We will be adding two ValidationControls to the TextBox. The first, a CompareValidator to check if the user does not enter an invalid date (Eg: May 32) and second, a RangeValidator to keep the date range as desired.
Adding CompareValidator
<asp:CompareValidator ID="CompareValidator1" runat="server"
ControlToValidate="TextBox1" Display="Dynamic" ErrorMessage="Invalid Date"
Operator="DataTypeCheck" Type="Date">
</asp:CompareValidator>
<cc1:ValidatorCalloutExtender ID="CompareValidator1_ValidatorCalloutExtender"
runat="server" Enabled="True" TargetControlID="CompareValidator1">
</cc1:ValidatorCalloutExtender>
Adding RangeValidator – We will restrict the user to select a date range starting from today to 15 days from now.
<asp:RangeValidator ID="RangeValidator1" runat="server"
ControlToValidate="TextBox1" ErrorMessage="RangeValidator"
Type="Date">
</asp:RangeValidator>
<cc1:ValidatorCalloutExtender ID="RangeValidator1_ValidatorCalloutExtender"
runat="server" Enabled="True" TargetControlID="RangeValidator1">
</cc1:ValidatorCalloutExtender>
In the code behind of your page, add this code
C#
protected void Page_Load(object sender, EventArgs e)
{
RangeValidator1.MinimumValue = System.DateTime.Now.ToShortDateString();
RangeValidator1.MaximumValue = System.DateTime.Now.AddDays(15).ToShortDateString();
}
VB.NET
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
RangeValidator1.MinimumValue = System.DateTime.Now.ToShortDateString()
RangeValidator1.MaximumValue = System.DateTime.Now.AddDays(15).ToShortDateString()
End Sub
Well those were some tips associated with the CalendarExtender. As future versions of the toolkit are released, we should be hopeful that there will exist easier ways, of achieving this functionality.
From: http://www.dotnetcurry.com/ShowArticle.aspx?ID=149
Another advanced approach would be to extend the CalendarExtender javascript, but then you have your own custom version of the ajax toolkit.
http://codegoeshere.blogspot.com/2007/06/extending-calendarextender.html
set StartDate property of the calender extender to DateTime.Now.Date in the page load
this will show the previous dates as unselectable
Hello all how to use HTML text field instead of ASP.NET textbox.?
How to write C# code to make use of HTML forms instead of ASP.NET
EDIT:
<form id="form1" runat="server">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<input id="Text1" type="text" runat="server" />
<asp:Button ID="Button5"
runat="server" Text="Button" OnClick="button5_click" />
<div>
<script runat="server">
protected void button5_click(object sender, EventArgs e)
{
Text1.Value = "Hello";
}
</script>
</form>
Instead of using or whatever server control, just type in the standard type tags or whichever HTML control you want.
If you want to be able to access them from your code-behind, then just include a runat="server" value with each HTML tag and make sure you give it an ID.
You need to retrieve the value from the HTTP request's Form collection:
<input type="text" name="MyTextField" />
Code behind:
string value = Request.Form["MyTextField"];
This question doesn't make much sense. You really should clarify and flesh out the question and explain what you are trying to do.
In some ways, an ASP.NET textbox is an HTML text field that C# code can make use of. So what's the problem with an ASP.NET textbox?
You can create an instance of a HtmlInput control in code, or alternatively add a runat="server" attribute to an <input> element in your aspx file, you can then access this from server-side code using it's ID.
As an alternative, you may wish to take a look at http://asp.net/mvc to get better control of your HTML markup.
I would like to set the focus on a textbox and/or control after clicking an asp label? Can some explain to me how to do this? Similar to doing a
<label for="txtBoxID">Blah</label>
You can also do this
<label for="<%=txtName.ClientID%>">Name:</label>
<asp:TextBox runat="server" ID="txtName"></asp:TextBox>
or on dot 4.
<label for="txtName">Name: </label>
<asp:TextBox runat="server" ID="txtName" ClientIDMode="Static"></asp:TextBox>
and avoid JavaScript.
This is the Best way to write and avoid javascript
<p>
<asp:Label ID="lblName" runat="server" AssociatedControlID="txtFirstName" Text="First Name: " />
<asp:TextBox ID="txtFirstName" runat="server" />
</p>
You can do it using Javascript or jQuery.
<label for="txtBoxID" onClientClick="SetMyFocus()">Blah</label>
<javascript>
function SetMyFocus()
{
document.getElementById("MyTextBox").focus();
}
</javascript>
If you have a specific need of doing something in the server side on the click of the label, you shall have to handle the same in code behind and then set the client side script to fire up after reloading the page. Use RegisterStartupScript for the same.
I'm assuming you want to do it completely on the client side to avoid a postback?
You can use jQuery to set focus. After adding a script reference to the jQuery library, you can use the following JavaScript in your page:
$(document).ready(function() {
$("#labelId").click(function() {
$("*[id$='txtBoxID']").focus()
});
});
The "*[id$='txtBoxID']" selector allows you to select the ASP.NET server side ID of your textbox without any additional code. Basically, it's saying "select any DOM element whose ID ends with txtBoxId."
You can add jQuery to your page with the following CDN script reference:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
A more generalized solution using jQuery:
$(document).ready(function() {
$("label[for]").click(function() {
var inputid = '#' + $(this).attr('for');
$(inputid).focus();
});
});
Should handle all labels, as long as you correctly define the for attribute.