I was curious if one can use RequiredFieldValidator and other validation controls for client-side validation on a production site?I looked in the docs but could not find any mention of validators.
View 3 RepliesIf I have something like the following:
<asp:TextBox id="test" runat="sever"></asp:TextBox>
<asp:RequiredFieldValidator runat="server" ControlToValidate="test"
ErrorMessage="Required"></asp:RequiredFieldValidator>
<asp:Label runat="server" id="lblStatus"></asp:Label>
if in the code behind, I set the label to "You must enter a value if the textbox is empty" to validate it on the server side and this is fine, but if javascript is enabled, I don't want to show the client side validation and the server side label together. Is this something where I would just have to disable the client-side validators if javascript was enabled?
For the ASP.NET validator controls, I want to use both client-side validation for the user experience and server-side validation to guard against hackers. ASP.NET documentation leads me to believe that if EnableClientScript="True" then there will be no server-side validation if client-side validation is possible for the user agent. To get server-side validation, the documentation says use EnableClientScript="False", which bypasses client-side validation altogether.
Am I misunderstanding how the validator controls work? I ask because it seems obvious that many developers would want both client and server side validation together, and I find it hard to believe both together is not possible with one of the standard validation controls.
If I am understanding the ASP.NET documentation correctly, then I can find only two options:
Use two validator controls exactly the same except for their ID and EnableClientScript properties. Obviously ugly for maintaining two controls almost the same.Write some code behind to check if postback then invoke the Validate method on the validator group. Why write code behind if there a way to be automatic from the control?
Is there a way to do so using a single validator control with no code behind?
I have a page that downloads a dataset and streams the output to an Excel file by modifying the response headers.
I want to write an AJAX call on the client side that can display a modaldialog while the file is being generated and dismiss the modaldialog when the file has been fully rendered.
I can turn the dalog on when the user clicks a link, but for some reason my pages return readystate 4 and status 200 prematurely. (These are the codes that say the page is done)
Because this is happening, either the modal dialog is dismissed immediately or I need the user to dismiss it.
Has anyone seen this before? Is this an issue with streaming a file instead of hitting a physical page?
Does anyone have a work-around, or will I need to have the user manually dismiss the dialog?
Given an ASPX page with a textbox, a requiredfieldvalidator, and 2 buttons.If I want to only have the requiredfieldvalidator validate that data is in the textbox if button1 is clicked but not button2, is my only option to set EnableClientScript to false and do validation on the postback?Or have they implemented a way where you can still do the client side validation, but specify for it to only occur if button1 is clicked and not button2?
View 5 RepliesAre the validators (required validator, range validator, regular expression validators..... ) provided in asp.net belongs to Server side or Client side.and If server side how can we convert them to client side.or
If client side how can we convert them to server side.
First of all, awesome job in the MVC 3 RC. The Razor view Intellisense, validation improvements, and many other things are most excellent.A question to those who have struggled with complex validations like me (it led me to pursuing Ajax-based validation using a 'roundtrip validation' concept...http://mvcajaxvalidation.codeplex.com/)... I couldn't wait to have a pure client-side jQuery method that was well integrated with data annotations so I could drop the work-around attempts.So, I was excited to see how easily and well Remote Validation works. In fact, the way I could pass other fields along with my validation request was unexpectedly awesome. However, I was very surprised when I turned off JS and noticed that the data annotations which allow the Remote Validation check do not work server-side like all other data annotations that I've tried. Are there any plans to include this? I don't mind doing a custom validator just for the server-side, however, it will be a somewhat redundant annotation unless I'm missing something?
View 3 RepliesThe error message that gets added to the validation summary when the form is invalid I need to get access to in client-side JavaScript. How do you access the actual message? My page doesn't have a ValidationSummary present, and Page_Validators[0].errormessage is *. Where is the message?
View 1 RepliesI have an asp.net application with basic CRUD functionality. On a page where i am capturing customer details i have several asp.net validators to required fields. I have attached a JS confirm box on the asp.net save button for the form. The trouble is that when the user leaves required fields unfilled and clicks the save button, the JS confirm box comes up, when the ok button is clicked, the save method is called successfully and only after this happened do the asp.net validators fire and display that required information has been left out.
View 2 RepliesI have a text box in which I want only digits (either decimal or whole numbers). I have applied Required Field Validator and Regular Expression Validator on it.I have an Image Button, by clicking on which, I want this validation to be performed. But when I build the code, and clicks on Image Button, these validators do not work and I am redirected to the server side method of Image Button and after completing the execution of server side method, control comes to these validators and client side validation executes.I am fed up by finding solutions on Google and unable to find any solution.Please tell me of anyone of you know the solution that why server side code is running first and client side validation is executing after server side code execution.
View 11 RepliesI know that I can receive an javascript object from the server via ASP.NET AJAX using Json. But I am not sure how can I send an javascript object from my client-side javascript to my server-side code. And if I can, how can I extract this object in my server-side code and access its members?
View 1 RepliesI reordered some items in a listbox using Javascript. When I read the items in a postback in the code behind (ASP.NET), the order is in the original order. How do I get the same order as shown in the screen after Javascript manipulation?
View 3 RepliesI m using site login Control in my login.ascx file and disaplaying login control in Div so if there is login link in page and i click on that then Login Div will popup which is site login.May i know how can handle error like username or password is incorrect on client side instead server side?
View 6 RepliesI have set the ajax tabs disable on form load. ON button click, I want to enable the tab server side,not client side.
protected void btnEnableCostPetroleumTab_Click(object sender, EventArgs e)
{
TabContainer2.Tabs[0].Enabled = true;
}
But its not enabling the tab?
in a form i have a buttoin, when click both OnclientClick and postback should happen. on clicking the "Email" button a client side "mailto" tag should do the work and pull a new message window on the client's machine.
whereas, the email addresses should be invoked by the post back. so , when clicking the button the server side post should happen and on return the client side script should be invokded with the values read during post back, and populate all the email addresses.
i need know how to first do a server hit take the values and then execute the client script with those values without using AJAX
I am calling server side methids from client side using PageMethods. Can those methods return value back to client side. If yes then how and if no then how can that be achieved? refer to my code below.
function getValuesFromPSS(s,e)
{
debugger;
[Code]....
I am using VS2010 and .NET4 for a web app. I have a script manager/update panel that has a couple of grids.
The client just leaves the page opens and views an updated grid every 30 seconds or so.
I want to refresh the grid by calling the server side method to load the grid, but not load the whol page using meta refresh or similar (too much screen flicker and unnecessary bandwith).
Is it possible to set some timer using javascript or something and call a specific server method to refresh controls?
I want to do something a little bit tricky here. I want to call a server side fonction from the javascript. I know it can be done but I get some errors. This is my Javascript fonction where I want to call the server side fonction:
[Code]....
And this is the code in my VB page:
[Code]....
I have recently found this snippet of code but I am unable to get it to work. Does anybody know if the $index syntax has changed in the latest version of the client templates?
[Code]....
I keep recieving $index is undefined.
The offending line is
[Code]....
I have a user control which contains a CustomValidator which is used according to whether a RadioButton is checked or not (there are several RadioButtons, I'm only showing the relevant one)
<asp:RadioButton runat="Server" ID="RadioBetween" GroupName="DateGroup" CssClass="date_group_options_control_radio" />
[code]...
There is some client + server side validation code (the server side code does exactly the same thing and is skipped for brevity)
<script type="text/javascript">
function ValidateDateFields_Client(source, args) [code]...
There are two instances of this control in the page. When running the client side version it hits the wrong one (the version of the control which is disabled). You can see from the generated HTML both are correctly specified. I'm not sure how .NET works out which clientside function to call given they both have the same name.
<script type="text/javascript">
//<![CDATA[
var ctl00_MCPH1_QueryTextValidator = document.all ? document.all["ctl00_MCPH1_QueryTextValidator"] : document.getElementById("ctl00_MCPH1_QueryTextValidator");
[code]...
Do i need to add something in to scope it? What's the best way to achieve this? If I disable the loading of the second control everything works fine.
I have a page where I am using 2 update panels. The first update panel contains a form that has some validation tied to it. The second on has a simple form, but no validation. When I go to use the form in the second panel, the postback is halted by the validators in the first panel. Everything works as it should when I remove the validators.
View 2 RepliesI need to get the latest version of DotNet installed on the machine in which my App is running. How do I get that?
I have an app which I distribute to several people. Now, If one person who runs the app has .NET version 2.0 installed, I must get that info...and if another guy has 3.5 installed, I need that info .I tried with the Environment.version, but that gives the version of the application .
I want to pass an image as a byte array from php to a .NET web serice. The php client is as follows:
<?php
class Image{
public $ImgIn = array();
}
[code]...
Im using some animationExtenders in my project. The thing is, the objects to be animated are created programmatically, hence i need to also build programmatically the javascript code that will interact with them.
It runs properly but, when i interact with these animated controls and the javascript functions are supposed to get to work, i keep getting the usual run-time error saying that the javascript functions are not defined. But, if i check the final html code generated, i can see how all the controls i built programmatically are there ,as well as the script.
Tried both RegisterStartupScript and RegisterClientScriptBlock, no luck.
we have a scenario where there is one dropdown on the page now users can add new dropdowns just below the existing dropdown. how do we add dropdowns on the client side and then access the dropdowns on postback?.
and what type of controls do we need to acheive this.