I'm trying to use code behind to read text from HTML provided to me. After researching this topic I found that almost all instances of this involve Web Forms controls(asp:) for the textboxes but the HTML I was given does not, but instead is:
<p>
<label>Address</label>
<textarea class="w3-input w3-border" name="addr" cols="30" rows="4"></textarea>
</p>
<div class="w3-half w3-container">
<p>
<label>Phone:</label>
<input type="text" class="w3-input"/>
</div>
<div class="w3-half w3-container">
<label style="padding-left:10px;">Email:</label>
<input type="text" class="w3-input"/>
</div>
</p>
Will I still be able to read the user-provided text from these boxes or will I need to alter the HTML?
A couple of my unsuccessful code-behind attempts to extract the address supplied:
string address = ((textarea)Address.FindControl("addr")).Text;
string address = ((TextBox)Address.FindControl("addr")).Text;
Update:
Using the server control described in a solution offered, I get an error message stating that "A page can have only one server-side Form tag."
This results from the following markup:
<form runat="server">
<asp:textbox id="addr" runat="server" textmode="multiline" />
</form>
followed later by:
<form runat="server">
<asp:Button ID="Ship" runat="server" Text="Ship" OnClick="Ship_Click" style="padding: 10px; margin-bottom: 10px;" class="w3-round w3-blue" />
<asp:Button ID="Rate" runat="server" Text="Rate" OnClick="Rate_Click" style="padding: 10px; margin-bottom: 10px;" class="w3-round w3-blue" />
</form>
The textarea is located in a different section than the buttons and I'm unclear on how to make both functional either without a form tag or without having them share the same one. Thanks
You need to use a server control if you're looking to access the value in code behind. Use an ASP TextBox and set the TextMode to MultiLine:
<asp:TextBox ID="textarea1" runat="server" TextMode="MultiLine" />
Then in code behind:
string addr = textarea1.Text;
UPDATE to demonstrate multiple forms on the same page:
<form ID="form1" runat="server">
<asp:Button ID="Ship" runat="server" Text="Ship" OnClick="Ship_Click" style="padding: 10px; margin-bottom: 10px;" class="w3-round w3-blue" />
<asp:Button ID="Rate" runat="server" Text="Rate" OnClick="Rate_Click" style="padding: 10px; margin-bottom: 10px;" class="w3-round w3-blue" />
</form>
<form id="form2" action="WebForm1.aspx" method="post">
<asp:TextBox ID="textarea1" runat="server" TextMode="MultiLine" />
</form>
From here, you can use either method of retrieving the textarea1 value in code behind for posts from form1 or form2...
form1:
string addr = textarea1.Text;
form2:
string addr = Request["textarea1"].ToString();
Add runat="server" to your TEXTAREA and INPUT tags. Then you can access them from code-behind. You also need to assign the ID attribute of each one.
<p>
<label>Address</label>
<textarea class="w3-input w3-border" name="addr" id="textarea1" runat="server" cols="30" rows="4"></textarea>
</p>
<div class="w3-half w3-container">
<p>
<label>Phone:</label>
<input type="text" class="w3-input" runat="server" id="input1" />
</div>
<div class="w3-half w3-container">
<label style="padding-left:10px;">Email:</label>
<input type="text" class="w3-input" runat="server" id="input2" />
</div>
</p>
Related
Here my page :
<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
<%# Register Assembly="Microsoft.ReportViewer.WebForms" Namespace="Microsoft.Reporting.WebForms" TagPrefix="rsweb" %>
<asp:HiddenField ID="hdnfromDate" Value="" runat="server" />
<asp:HiddenField ID="hdntoDate" Value="" runat="server" />
<div id="myModal1" class="modal fade" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title">Issue Invoice</h4>
<button type="button" class="close" data-dismiss="modal">×</button>
</div>
<div class="modal-body">
<form id="reused_form" runat="server">
<p>
Send invoice to...
</p>
<div class="form-group">
<label for="name">
To:</label>
<input type="text" class="form-control"
id="name" name="name" readonly maxlength="50" runat="server">
</div>
<div class="form-group">
<label for="email">
CC:</label>
<input type="email" ID="cc" class="form-control" runat="server" multiple>
</div>
<div class="form-group">
<strong><i>Note:</i><small> <i>The invoice can not be edited after issuing.</i></small></strong>
</div>
<asp:LinkButton CssClass="btn btn-warning m-btn btn-block btn-lg m-btn--custom m-btn--icon m-btn--air " OnClick="Onbtn3_Click" Text="Issue Invoice " ID="LinkButton3" runat="server"></asp:LinkButton>
</form>
<div id="success_message" style="width: 100%; height: 100%; display: none;">
<h3>Sent your message successfully!</h3>
</div>
<div id="error_message"
style="width: 100%; height: 100%; display: none;">
<h3>Error</h3>
Sorry there was an error sending your form.
</div>
</div>
</div>
</div>
</div>
In cs File i am trying to access email value using cc.Value as for email textbox id is cc. But it always gets empty string. In my default master page i have a form tag which runs at server so if i keep this modal in a form runat server then gives me error saying page can have only one form tag. Please can anyone help me out. Thanks in advance
This may help
There is Text property available, so you can use textBox.Text to get textbox contian. In your case cc.Text.
Try textBox.text(). Should work.
As Html 5 type=“email” control is not available using runat attribute, you can access TextBox like below:
<asp:TextBox ID="txtBoxCc" runat="server" TextMode="Email"></asp:TextBox>
Now in codebehind you can access it like txtBoxCc.Text
Also, you have to put it like below:
if(!Page.IsPostBack) {
string cc = txtBoxCc.Text;
}
I am working on login and register form, both of the forms are doing their work perfectly. But I have a problem, whenever I click on register form it's check user input. It should not do that just simply redirect to registration form but it's not.
<form class="login-form" runat="server">
<div class="form-group">
<label class="sr-only" for="form-username">Username</label>
<asp:TextBox ID="UserName" placeholder="Username..." class="form-control" runat="server" required=""></asp:TextBox>
</div>
<div class="form-group">
<label class="sr-only" for="form-password">Password</label>
<asp:TextBox ID="Password" placeholder="Password..." type="password" class="form-control" runat="server" required=""></asp:TextBox>
</div>
<asp:Button ID="BtnLogin" type="submit" class="btn" runat="server" Text="Login" OnClick="BtnLogin_Click" />
<asp:Button ID="BtnRegister" class="btn" CausesValidation="false" runat="server" Text="Register" OnClick="BtnRegister_Click" />
</form>
What's causing the problem here any idea???
Your register button is submitting the form, as all ASP buttons do, and the required attribute of your inputs is going to validate on a form submit. CausesValidation won't do anything because it's an ASP.Net property (and to be used with ASP.Net validators), whereas the required attribute validation is an HTML5 client-side event.
Try putting the formnovalidate attribute on your Register button:
<asp:Button ID="BtnRegister" class="btn" CausesValidation="false" runat="server" Text="Register" OnClick="BtnRegister_Click" formnovalidate />
W3 Reference:
The novalidate and formnovalidate content attributes are boolean attributes. If present, they indicate that the form is not to be validated during submission.
OR...
If your register button is a simple redirect, it does not need to be a server-side control. Just make it a link and style it like a button:
a.register-btn {
display: inline-block;
background-color: red;
color: white;
text-decoration: none;
border-radius: 3px;
padding: 6px;
font-family: 'Arial';
font-weight: bold;
}
Register
Before adding the ScriptManager when I was clicking on the login button it was showing the required field warning without page postback but after that it has started to do postback first and then validate fields.
It's required to add a ScriptManager when there is an UpdatePanel on the page.
How can I fix this so it doesn't postback on RequiredFieldValidator?
Login Page
<form id="signinform" runat="server" defaultfocus="username" defaultbutton="LogInBtn">
<asp:scriptmanager id="FormScriptManager" runat="server"></asp:scriptmanager>
<div class="form-signup">
<div class="form-group form-group-info">
<div class="append-icon m-b-30">
<asp:textbox id="username" runat="server" cssclass="form-control c-white form-control-success" placeholder="Username" />
<i class="mdi-action-perm-identity c-light"></i>
<asp:requiredfieldvalidator runat="server" id="UserNameValidator" controltovalidate="username" display="Dynamic" validationgroup="LoginVAL" setfocusonerror="true" cssclass=" f-11 c-red m-b-0" errormessage="The username is required." />
</div>
</div>
<div class="form-group form-group-info">
<div class="append-icon m-b-30">
<asp:textbox id="Password" textmode="Password" runat="server" cssclass="form-control c-white form-control-success" placeholder="Password" />
<i class=" mdi-action-lock-outline c-light"></i>
<asp:requiredfieldvalidator runat="server" id="PasswordValidator" controltovalidate="Password" display="Dynamic" setfocusonerror="true" validationgroup="LoginVAL" cssclass="f-11 c-red m-b-0" errormessage="The password is required." />
</div>
</div>
<div class="togglebutton togglebutton-info">
<label class="c-light normal f-11 m-b-15">
<input type="checkbox" runat="server" name="RememberMe" id="RememberMe" class="md-checkbox">
Remember me?
</label>
</div>
</div>
<asp:placeholder runat="server" id="ErrorMessage" visible="false" viewstatemode="Disabled">
<p id="ErrorMessageContainer" runat="server" class="badge badge-danger m-b-5 f-11">
<asp:Literal runat="server" ID="FailureText" ViewStateMode="Disabled" />
</p>
</asp:placeholder>
<div class="progress-demo">
<asp:linkbutton id="LogInBtn" runat="server" onclick="LogIn" text="Login" cssclass="btn btn-material-indigo btn-block btn-embossed ladda-button" validationgroup="LoginVAL" data-style="zoom-in"></asp:linkbutton>
</div>
<p>
<%-- Enable this once you have account confirmation enabled for password reset functionality--%>
<asp:hyperlink runat="server" id="ForgotPasswordHyperLink" viewstatemode="Disabled">Forgot your password?</asp:hyperlink>
</p>
<div class="modal fade" id="LoginModal" tabindex="-1" role="dialog" aria-hidden="true" data-backdrop="static" data-keyboard="false">
<div class="modal-dialog">
<div class="modal-content">
<div id="LoginModalHeader" runat="server" class="modal-header bg-aero">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true"><i class="icons-office-52"></i></button>
<h4 class="modal-title c-white">
<asp:label id="LoginModalTitle" runat="server" />
</h4>
</div>
<asp:updatepanel id="LoginModalUpdatePanel" runat="server">
<ContentTemplate>
<div class="modal-body m-t-10">
<p class=" c-gray w-300 f-13"><asp:Label ID="LoginModalDetails" runat="server" /></p>
</div>
<div class="modal-footer">
<asp:LinkButton runat="server" ID="ResendConfirm" OnClick="SendEmailConfirmationToken" Text="Resend Confirmation" Visible="false" CssClass="btn btn-material-blue-grey btn-embossed" />
<button id="LoginModalCancel" runat="server" type="button" class="btn btn-default btn-embossed" data-dismiss="modal">Cancel</button>
</div>
</ContentTemplate>
</asp:updatepanel>
</div>
</div>
</div>
</form>
I appreciate your efforts in reaching a solution for my problem.
I came across the same issue a while back and was able to resolve it via Page.Validate();.
Basically, before I added ScriptManager everything was working well. When I would click the update button, the field validators would run and prevent a post back until requirements were met. After adding ScriptManager tag, the page would post back rendering my validators pretty much useless.
What I did was add on my update (submit) button click event:
page.validate();
if (Page.IsValid)
{
// Your update or submit code here.
}
This seems to work fine!
Write like this..
<asp:updatepanel id="LoginModalUpdatePanel" runat="server">
<ContentTemplate>
//paste all codes inside here
</ContentTemplate>
</asp:updatepanel>
I have a few dynamic html items which are populated by jquery and/or JS, but for some reason the C# will only see the original values from when the page loaded.
<form class="form-horizontal">
<div class="form-group">
<label class="col-sm-3">Date</label>
<div class="col-sm-9">
<asp:ToolkitScriptManager ID="tsm" runat="server" />
<asp:TextBox CssClass="btn btn-default pull-right" ID="calBtn" runat="server" Style="width: 150px">Click Here</asp:TextBox>
<asp:CalendarExtender ID="calExt" TargetControlID="calBtn" runat="server" />
</div>
</div>
<div class="form-group">
<label class="col-sm-5">
Start (Actual Begin Time)</label>
<div class="col-sm-7">
<%--<input runat="server" id="startTime" class="time btn btn-default pull-right" type="text" autocomplete="off" style="width: 150px" />--%>
<asp:TextBox runat="server" ID="startTime" CssClass="time btn btn-default pull-right" AutoCompleteType="Disabled" Style="width: 150px"></asp:TextBox>
</div>
</div>
<div class="form-group">
<label class="col-sm-4">End</label>
<div class="col-sm-8">
<%--<input runat="server" id="endTime" class="time btn btn-default pull-right disabled" type="text" autocomplete="off" style="width: 150px" />--%>
<asp:TextBox runat="server" ID="endTime" CssClass="time btn btn-default pull-right" AutoCompleteType="Disabled" Style="width: 150px"></asp:TextBox>
</div>
</div>
</form>
Above the asp:TextBox items I have commented out my original "input" elements since I was trying both methods. If I call string date = calBtn.Text in the C#, it says "Click here" as the returned value. I have also tried date = calExt.SelectedDate which returns empty.
In the text box I have tried .Text and .SelectedValue but still empty.
#DrewKennedy had the right idea. I was nesting all these <form> tags for the Bootstrap which caused it to not be seen server-side. I had wrongly assumed I needed the nested forms to make the CSS work.
I already had a <form runat="server"> surrounding the whole body, but changing the inner <form class="form-horizontal"> to <div class="form-horizontal"> fixed the problem.
ASP.NET only support ONE SINGLE . So you had to add runat=server on your form makup.
Now it is working for me.
I have a form on home.aspx that is this:
<form name="search" method="post" action="searchresults.aspx" id="searchform" runat="server">
<div class="searchField">
<input name="keywords" type="text" id="keywordSearch" value="Enter keywords" class="watermark" />
</div><!--end searchField-->
<div class="advanceSearchBox">
<p><b>Narrow results by:</b></p>
<asp:Literal ID="ltrlPopulation" runat="server" />
<asp:Literal ID="ltrlDatasource" runat="server" />
</div><!--end advanceSearchBox-->
<div style="float: right; margin-right: 2px;">
<asp:ImageButton ImageUrl="images/go_up.png" AlternateText="GO" Width="34" Height="24" id="keywordSearchGO" runat="server" />
</div>
</form>
And on my searchresults.aspx.cs page I have this QueryString but its always empty:
Response.Write(Request.QueryString["keywords"]);
Did I forget something?
You could change the opening form tag to:
<form name="search" method="get" action="searchresults.aspx" id="searchform" runat="server">
If you really want to be using query string for some reason.
That's because QueryString is for GET requests, not POST. You want to use Request.Form for posted data.
Response.Write(Request.Form["keywords"]);
Read more documentation for the Request.Form Collection here.
A post doesn't generate a query string. To access post data, you'll need to do so through the Form or Params property.
Request.Form["keywords"];
Request.Params["keywords"];
You're posting to searchresults.aspx, so you will need to access your posted variables through Request.Form or Request.Params.
string keyWords = Request.Form["keywords"];
OR
string keyWords = Request.Params["keywords"];