Web Forms :: Textbox Server Validation If JavaScript Is Disabled?
Jul 30, 2010
I am trying to make ONE thing work. The form currently have TWO Textboxes and ONE CustomValidator(connected to the first textbox). I simply want once I enter less than 4 characters in the first Textbox and tab out to the second Textbox and if Javascript is DISABLED then the server side code should stop me. I can achieve what I am trying to do if I use a button but I need to do it in the fashion I am trying decribing because if I have for example 20 textboxes on the form I want the user to see after each data entry that his validation was successful or not. Here is a sample of my code.
[code]....
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Mar 24, 2011
if i turn off the java script in any browser will validation controls will work and if yes then how to work by disabling the java script
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Apr 4, 2011
I'm using some of the typical ASP.NET's Validation Controls in my website. Now I'm trying to disable the JavaScript in my browser to test my application and of course the Validation Controls no longer works. I think it's best to try to make them work using one of the solutions down here instead of reinvesting the wheel and build a validation layer for the page or my objects -Am I thinking right?-
What do you think of these options and why:
Include in clicked button's event a code to check if the page is valid and if not explicitly call the Page.Validate(); method Check if whether the JavaScript is enabled and if not I should call Page.Validate();
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Mar 2, 2010
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Mar 28, 2011
I have a user control with a label and a field. I add the user control dynamically to a page at run time. There could be many user controls which are built dynamically from data I get from the data base. The data describes the label name and if the text box should be completed.. ie is it required. I have a submit on the main page which has a validation group.All the validators on the user controls have the same validation group. So far so good I hope.
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<asp:TextBox ID="dfControl" runat="server" Text="" ToolTip="ucsAlphanumericEntryDC" Width="95%" CausesValidation="true"/>
<asp:RequiredFieldValidator ID="rfvContol" runat="server" ErrorMessage="Value is required" EnableClientScript="true"
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if (!DisplayRequired)
{
rfvContol.EnableClientScript = false;
rfvContol.Enabled = false;
dfControl.CausesValidation = false;
}
So far so good. This all works on the client side validation for only the user controls with the Display Required set to true, leaving the Validator enabled.however on posting page from a submit button which I have wired to the same validation group as the user controls, I check the IsValid on the submit and if its false I dont save anything. But when the page re-renders on the client.. I have error messages on all the user controls, saying that they are required... even though I disabled some of them that where not required. the View state is default on the control which I assume to be on.
I also tried not redrawing the controls with the validators, by enclosing the code in a if(!IsPostBack)
why the validators fire when they are disabled on the first page load but dont get disabled on the postback.
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Aug 10, 2010
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Mar 10, 2011
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Sep 20, 2010
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Dec 25, 2010
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Apr 26, 2010
I currently have 3 textbox controls on my page. I also have a required valdiator of each of the textboxes. However I only want the validator for a textbox to fire if there is text in either of the other 2 textboxes. If all 3 textboxes are empty then no validators should fire. Is there any way I can do this in javascript/jquery as I want the user to get the best experience possible.
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Feb 25, 2010
Can anyone shed some light on why DotNetNuke comes configured with request validation and event validation disabled? They're both off at the web.config level for a default install which seems to be a regressive approach. Are there any sound reasons for this and what is the functional impact on DotNetNuke if they're turned back on?
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Sep 6, 2010
want to know that can we validate a control which is out side a form element in asp.net(server side validation)and outside a form element in html(client side validation) let's take a closer look
<html>
<body>
<input type="text" name="first name"/>
</body>
</html>
can we apply clien side validation on above text box by java script ?in asp.net
<form runat="server">
</form>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
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Apr 29, 2010
I have a repeater which viewstate is disabled, inside i have a textbox and a submit button. Before disabling viewstate i could get the text from the textbox in the submit buttons onClick event. But now it doesnt seem to work.
I dont want to enable viewstate on the repeater as my site get really heavy then. How can I get the value form the textbox when I click the submit button? using .net 3.5
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Jan 3, 2014
How i bound user to enter only positive number otherwise give an error not a valid or not a number how can i?
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Mar 11, 2010
Im replying to this post (a few years back now) but your method was one I wanted to use for checking JS on page load.
I uderstand the value of testBox will be changed to yes if JS fires, and codebehind recieves the testBox value of yes.
Ive tried your exmple but its not working like this, what I get is the hidden testBox value NO passed when JS is enabled.
[code].....
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Mar 5, 2010
I have a page with a table and two button with the names (Submit and Add Rows) When I click on Add Row a new row will be added to a page(This is achieved using javascript), when I click on submit button I will be doing server side validation. If I found any error the error will be displayed on the page. During this process the controls which were added by me were loosing its state. As a result I need to add the rows once again and need to fill the data and click on submit button. Can any one let me know how to avoid this and see that the controls donot loose their states. So that there is no need for me to create rows once again if any validation fails on the server side.
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Feb 24, 2010
I have a couple of textboxes (actually a set of pairs of textboxes) where users can either enter a value or a percentage of a value but cannot use both. So in any given time some of these textboxes are disabled depending on which option the user chose.
For the textboxes representing percentages, there is a range validator to make sure only values from 0 to 100 are entered. If user selectes to enter datanot in percentage form, the percentage textbox gets filled automatically based on the value user enters. So if the total is something like 8 and user enters 2, the corresponding percentage textbox gets filled with 25% (minus the % sign).
However, the vaidation fails as if there is nothing there, persumably because the textbox is disabled. How do I get around this?
[code]...
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Jul 16, 2010
After witnessing some strange behvior I'm confused about ViewState again :/
My understanding was a textbox needed to have "EnableViewState" set to true otherwise when the you postback the fields contents would disappear.
That's not happening, I created a textbox and button and a label.
The button was set to copy contents of text box into the label when I pressed it.
I did and the text was populated into the label and remained in the textbox?
This was inside an UpdatePanel and the page itself has a MasterPage, so that might have something to do with it, but I have about 50 textboxes on this page all with viewstate=true on, so I would really like to know what controls need to have enableViewstate=true in order o function properly.
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Oct 21, 2010
If a control is disabled (enabled = false), will the validator controls associated with it automatically know not to carry out validation?i have a checkbox and a textbox, if the checkbox is checked, the textbox is enabled, and has to have a value, where i used a required field validator.but if the checkbox is not checked, textbox is then disabled, however, the validator controls still seem to be trying to validate the disabled textbox.so is there a way to disable validator according to textbox's state? such as textbox.enable = true? seems like causevalidation method requires multiple button, owever i only need one...
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Jul 28, 2012
I have 10 text box in a page like txt1,txt2...etc
In text box onchange i call the javascript function
for calculating txt5 value
i.e.
in javascript method,
txt5.value = parseFloat(txt1.value) + parseFloat(txt2.value) + parseFloat(txt3.value) + parseFloat(txt4.value);
and
text box txt5 enabled=false,autopostback is true
protected void txt5_TextChanged(object sender, EventArgs e) { // here based on txt5 value i getting records from database and doing some calculation and display those value in txt6,txt7
}
The problem is the textbox txt5 can;t post back when text change from JavaScript function.
How can I do postback when text box value bind from JavaScript function and enabled=false.
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Jun 17, 2010
Using MicrosoftMvcValidation.js, it seems like disabled html elements are validated on the client-side. I am not sure how much sense that makes given that such elements will not be submitted by the form and I probably consider it a bug. (By the way, MicrosoftMvcJQueryValidation.js does not validate disabled elements.)
Is there any way I can disable (pun intended) the validation of disabled elements? E.g., assuming I have a reference to an html element in javascript, is there some way I can "remove" it or disable it from the client-side validation machinery?
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Dec 21, 2010
when the link button is disabled the javascript error message comesup just by clicking it.When it is disabled it shouldnt come up not sure why it is coming up.
asp:LinkButton
ID="DeleteCategoryLink"
CssClass="link"
CausesValidation="false"
runat="server"
Text="Delete"
OnClientClick="javascript:return
confirm('Are you sure you want to do this?');"
/>
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