In the new user registration page, how to check whether the email id entered by a user is valid? I want to check the entered email id actually exists before the user submits his information. do not give code for checking email id string using regular expression, I want to check whether the entered email id actually exists.
View 5 RepliesIn addition to the process of regex syntax validation of Email Addresses entered by users, I'm trying to check if the entered email address is a real one and does exist?The best I could achieve is to "Ping" the host the email address is associated with. But there are some other terms in the industry like Handshaking with Email Server, etc.not necessarily with 100% confirmation accurary!
View 1 RepliesHow can I check if an email address actually exists?
I have a list of email addresses which I want to screen for dead email accounts (without sending an email msg with a hyperlink). Is there a web-service for this? Or C# code (which I prever instead of sending the data to someone else)?
How to find that email already exixts using panels and validators...
View 1 RepliesCan we check that user entering an email id is really exists or in working???
View 1 RepliesI want to validate the email id in clients side, so that to prevent the postback of page to server, and every user should registered with email id... so i want to validate email id at client side.. i.e. should be check it is exist in the database or not.
View 1 RepliesI want to check the entered email id already exists in my database or not. For that I need the Text box lost focus event so that I can call it in update panel trigger asynchronously. whereas in my event I can check whether the entered value exists in database or not.
I tried:
txtEmailId.Attributes.Add("onblur", "javascript:CheckEmailIdIsExist()");
If so, the what should be inside CheckEmailIdIsExist() javascript method? how to check database values asynchronously from javascript function?
In this article u describe how to check
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But I want to Data retrive from data base in this way can u tell me using java script and query string
Being in the learning phase of development in asp.net vb and sql server 2008...
the question m asking might seem to silly for many....
I have a login and a registration form for users... i hv done it
but my question is
1.how do v validate a user once he is registered
2.how can we show the details he had enterd while registration on his next login...
for example in facebook once registered the user can see his profile pic his profile info every time he logs in...
actually m nt able to create links between different tables storing various info. about users in database..
I'm trying to performa an ajax validation for e-mail address. I need to know if user is already registered so I need to check it in my database. There is similar example:
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My current code is:
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i am building a project using C# Asp.Net in which i am registering users with a user id, now my question is that how to check that the user id is already exists in the user table or not when user trying to register, i am using sql server 2000?
View 3 RepliesI am a beginner coder, i am building a project using C# Asp.Net in which i am registering users with a user id, now my question is that how to check that the user id is already exists in the user table or not when user trying to register, i am using sql server 2000?
View 4 RepliesI am developing a page where i have a grid in content page (inherited from master page) which i am populating using DATASET in code behind like this here is the aspx.
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As you can see i have some bound fields and one template field called "txtValue" which is the only input in gridview. Now what i want is when user input the value it should check the FACEVALUE and see if the entered value is not above the FACEVALUE and then need to Input value - FACEVALUE and result should be displayed in REMAINING field which is also a template field as label control.
I would like to create a sync process between an ADSI table and aspnet Membership using Membership.CreateUser. However, I need to see if a user exists before importing. I can import as long as a user does not exist however I am having trouble checking if users exist and only importing if they do not. Here is my code so far.
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what is code of "user already exists in database" using asp.net 3.5
View 1 Repliesweb application How to check file exists on local machine..?
View 1 RepliesUsing C#.NET and VWD 2008 Express
I'm looking for a hand with:
When inserting, i would like to check if the record exists in the table, then if it doesn't, insert it, else either redirecting to a different page, or showing a message box saying "Record already exists" ...
After entering user name, i want check user belonging to which group, group is some thing like role based
if group is something group1 , then i want redirect hime to page 1, if groupis 2 then page 2 like that
I am making an online form (literal form) that needs to have a certain function: when the user enters a 5-digit number, the form should automatically query the MS SQL DB and retrieve information associated to that number and populate other form elements (text boxes, etc.) accordingly.
So say the # was 12345 and in the DB, the record matching 12345 has name=Fred. So, when I enter 12345 into the form textbox, the name text box should be automatically populated with Fred in it.
If this is not easily achievable, I guess a submit button beside the 5-digit number text box can do.
I am still learning my way around ASP.NET and Visual Studio 2005, however I have ample experience with HTML, CSS, JavaScript, C/C++. The ASP.NET app is to be written in C#.
I am creating a newsletter and I have got a problem. I have 2 text boxes. In one textbox the user types his name and in the second one the user enter his email address. When the user press the button if the email exists I want to show a message box him that the email address already exists. If the email does not exist I want to insert his email on the database and show a message that he has been inserted in the newsletter list. Just to let you know guys I am using C#
View 11 RepliesI am creating a "Request for Quote" web form for my company so that when user enters his:
name,address,email,phone etc fields and clicks the submit button,all the data of the webform should be sent to my email address.
I've got a form that will be used to send an email from a site. I'm using regular expression validators to limit the input to only appropriate characters in all of the fields. There are two things I want to protect against with the body portion of the email, sql injection attacks and the user entering too much text. The body portion of the email is entered using a text box with text mode set to multi line.
What is the best way to prevent the user from entering too much text and to guard against characters I don't want? I assume a regular expression validator will be ok for this. Will there be performance issues with this? Will the regex validator work well enough for this situation? Is there a better way of doing this?
In my application i need to check the existence of entered emailID's by users.
How to achieve it?
I have a webform, that needs to check the values entered against a database, and then send an email if the request turns out positiv.
View 11 RepliesIn the registration page of my project i want to check whether the enterd userid is available in database or not without sendig the whole page to server and i made userid as a primery key.
View 1 Replies