I have several checkboxes in a form. These are not server side checkboxes. When any box is checked, it never comes across in the form post. I'm using the following:
foreach (string key in Request.Form.AllKeys)
{...}
Any example checkbox is in this format:
<input id="chkFirstName" type="checkbox"/>
Any ideas what I'm doing wrong?
You're missing the name attribute. It is required to submit its value. The id attribute does not doe this.
<input id="chkFirstName" name="chkFirstName" type="checkbox"/>
You haven't set the name="" or value="" attributes on your <input /> element. The id attribute is only used client-side, whereas the name="" attribute corresponds to the Request field set, finally an input element must have a value for it to be submitted too.
If you're using WebForms, then use ASP.NET Controls (either <input runat="server" /> or <asp:CheckBox />) to take advantage of stronger-typing, validation, and other benefits.
Related
I have:
<input name="input4" type="text" id="input4" disabled="disabled" class="jsx-3771882255" data-id="0">
I want get data of data-id by C#;
string s=input4.Attributes["data-id"].ToString(); //(can'tuse this!)
You have the disabled attribute set on your text box, this will not get submitted to the server, use the readonly attribute instead of the disabled attribute.
#vuong quang - Can you check my code and implement it's working for me and also I shared my code with a screenshot.
HTML Code
Add runat="server"
<input type="text" name="name" value="0" data-id="101" runat="server" id="txtvalue" />
HTML Code
Code behind
string id = txtvalue.Attributes["data-id"].ToString();
Check below screenshots
CS Page Code
I have an ASP.NET site and need to post some hidden form fields to SagePay so that my customers can pay for goods. I am using the following method to do this:
<input type="hidden" name="VPSProtocol" value="2.23" />
<input type="hidden" name="Currency" value="gbp" />
<input type="hidden" name="TxType" value="PAYMENT" />
<input type="hidden" name="Vendor" value="myvendorname" />
<input type="hidden" runat="server" id="crypt" name="Crypt" value="#<encrypted string>" />
<asp:Button ID="Button1" runat="server" Text="Pay Now" PostBackUrl="https://live.sagepay.com/gateway/service/vspform-register.vsp"/>
Now, If I use this code in a standard ASP.NET form, this works fine - SagePay accepts the posted information and continues with the payment process. However, if I use the same code inside a content page with a master page, Sagepay displays the following error screen:
5030 : We could not process your message, please check your
integration settings or contact the support team.
It seems as if the hidden fields are losing their value because of the master page.
Could anyone tell me what could be happening here and if there is anything I can do to rectify the situation. I need to use the SagePay Form method and I need to use a masterpage.
I haven't used webforms for a while but from memory by default it changes the names of your elements based on their container to allow navigation and identification server side: MSDN documentation here.
This means that your posted values are not under the name you expect them to be.
In my ASP .Net Form application I need to post some data using hiddenfields.
Need to set the values dynamically in page load in the code behind file
Have to use the hidden fileds in a web form which using a masterpage.
I have to add runat="server" attribute as need to access the field in code behind file to assign value dynamically..... There the problem begins.
eg:
<input type="hidden" runat="server" id="uname" value="abc" />
converts to following by ASP .Net in run time
<input name="ctl00$content$uname" type="hidden" id="content_uname" value="abc" />
So a diffrent filed name="ctl00$content$uname" gets posted.
I tried adding ClientIDMode="Static" but still a different named field creates by ASP .Net in run time for name field as following
<asp:HiddenField ID="uname" runat="server" Value="abc" ClientIDMode="Static" />
Converts to following by asp .net
<input type="hidden" name="ctl00$content$uname" id="uname" value="abc" />
If somebody can guide me of how to post values using hiddenfields by assingning values in run time in code beghind in a masterpage environment in ASP .Net, would be really grateful. Thanks...
Any time you use runat="server" you essentially give WebForms control over that, well, "control". Which means that WebForms is going to dictate the resulting markup. Since you need granular control over the markup, you need to create it manually:
<input type="hidden" name="uname" />
Since this is just plain HTML, the WebForms rendering engine won't modify it. Then to assign a value to this from server-side code, you'd use an inline server-side statement:
<input type="hidden" name="uname" value="<%= SomePageMember %>" />
In this case, SomePageMember is a public or protected class member for the page's class. Something like this:
protected string SomePageMember { get; set; }
This will allow the UI page (which inherits from the code-behind class) to inject that value directly in the markup, while still giving you granular control over the markup itself.
You could have the value set via a server tag and not user runat="server"
<input type="hidden" runat="server" id="uname" name="uname" value="<%= HiddenValue %>" />
Create a global variable named HiddenValue and set the value when the page loads.
Edit: Just realized that this the same advice as #Bartdude.
I have an HTML form that I'm processing with Perl CGI, like so:
<form action="process.cgi" id="main">
<input type="text" name="foo" class="required" />
<input type="text" name="foo" class="required" />
<input type="text" name="foo" class="required" />
</form>
And I'm validating it with the jQuery Validation plugin. Trouble is, when I call $('#main').valid(), it only checks that the first field is non-empty. How to I get it to check all the fields?
OFFICIAL DOCUMENTATION:
jqueryvalidation.org/reference/#link-markup-recommendations
"Mandated: A 'name' attribute is required for all input elements needing validation, and the plugin will not work without this. A 'name' attribute must also be unique to the form, as this is how the plugin keeps track of all input elements. However, each group of radio or checkbox elements will share the same 'name' since the value of this grouping represents a single piece of the form data."
<input type="text" name="foo" class="required" />
<input type="text" name="foo" class="required" />
<input type="text" name="foo" class="required" />
Quote OP:
Trouble is, when I call $('#main').valid(), it only checks that the
first field is non-empty. How to I get it to check all the fields?
It has nothing specifically to do with .valid() and it will fail the same using other jQuery Validate methods. That's because all three fields have the same name of foo. For this plugin each input must have a unique name.
DEMO: jsfiddle.net/xaFZj/
EDIT:
You cannot have duplicate names while using this plugin. This demo clearly shows that the plugin will fail when the name attribute is duplicated. There is no workaround since the name attribute is how the plugin keeps track of the form elements.
jsfiddle.net/ed3vxgmy/
The only exception is a radio or checkbox group where the elements in each grouping will share the same name.
I want to get the value of my input tag into my C#.
<div id="datetimepicker2" class="input-append">
<input data-format="MM/dd/yyyy HH:mm:ss PP" type="text"></input>
<span class="add-on">
<i data-time-icon="icon-time" data-date-icon="icon-calendar">
</i>
</span>
</div>// what should we use here?
The value is set by the user of the page.
I did't understand which control value you want to get. But If you want to get input element value into the code behind, you need to set runat="server" attribute, because this is a simple html element not a Asp control.
Add runat="server" and id="your_id" and you should have access to them.
for example:
<input type="text" value="Username" class="input-text autoclear"
runat="server" id="myTextBox" />
than you can simply get value of input box like this:
string myStringFromTheInput = myTextBox.Value;
For more options please See here
Try this
Add name for your input type
<input data-format="MM/dd/yyyy HH:mm:ss PP" name="txtBox1" type="text"></input>
and try this way for get value in codebehind
string value=Request.Form["txtBox1"];
You can access all your submitted form data at server side by looking into the form Request object.
Ex. Request.Form["txtDate"] OR Request["txtDate"].
Naming the html elements makes easier to look into form collection for specified element.
If what you posted is your actual code, you have an extra space in your closing tag
</asp: TextBox>
Should be
</asp:TextBox>
and then txt_todata.text should work