Web Forms :: Check Whether Email Exists And Is Valid

Apr 4, 2013

Can we check that user entering an email id is really exists or in working???

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Similar Messages:

Web Forms :: Check Whether Email Address Exists Without Email Confirmation

May 7, 2015

In 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!

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Web Forms :: Check Username And Email Address Exists In Database?

Jul 30, 2012

In this article u describe how to check

[URL]

But I want to Data retrive from data base in this way can u tell me  using java script and query string

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WCF / ASMX :: Check If Email Address Actually Exists?

Feb 9, 2011

How 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)?

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AJAX :: Check Whether Email Address Already Exists

Aug 22, 2013

How to find that email already exixts using panels and validators...

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AJAX :: How To Check Whether Email Address Already Exists In Database

Aug 2, 2012

 I 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.

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Javascript - Check Email Id Already Exists In Database When Losing Focus

Mar 18, 2011

I 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?

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C# - To Check The Entered Email Id Actually Exists Before The User Submits His Information?

Aug 24, 2010

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.

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Jquery - Check Email Availability With Ajax And Make Page Invalid If Exists

Sep 24, 2010

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:

[code]....

My current code is:

[code]....

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AJAX :: How To Validate Email TextBox To Take Only Valid Email Address

May 7, 2015

How me can validate a email textbox to take only valid email address if error occur it show the error message in this textbox or as a tooltip. because in the form there is no space to show error message.

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Web Forms :: Check Whether Domain Exists (Available)

May 7, 2015

Check whether the value inside the text box is a valid url or not

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Web Forms :: How To Check For File Exists On Another Website

Jul 29, 2010

I have two websites. One site contains nothing but image files. This is a sub-domain of the main website. The main website allows the user to search a database of information and displays that information. I create a grid with a link to the file. In my row_databound function, I want to check to see if that file exists on my other website. If it doesn't I remove the link, otherwise I leaves a link to that file. how to verify that the LINK actually goes to a file that exists?

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Web Forms :: How To Check If File Exists Before Upload

Dec 15, 2010

I am trying to check if a file already exists before uploading a file. I have the following code but it doesn't work whether the file exists or not.

[Code]....

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Web Forms :: FTP Download - How To Check File Exists

Dec 7, 2010

What is the way to :

1) Check if a file exists on an FTP site.

2) Sample the size of that ftp file (3) times to ensure the file is ready for downloading.

We have some classes doing this already but they are using WebRequestMethods.Ftp.ListDirectoryDetails and then searching there in if file exists. I am hoping there are some clean ways to do this.

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Web Forms :: How To Check If A Label Exists In A Placeholder

Jun 26, 2010

I was wondering how to check if a label exists in a placeholder??

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Web Forms :: How To Check Whether User Already Exists In Database

Jan 23, 2012

what is code of "user already exists in database" using asp.net 3.5

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Forms Data Controls :: Check If A GridView Exists?

Dec 9, 2010

I have a page with a simple textbox, when an OrderNo is entered in te textbox the page is populated with 2 or 3 gridviews depending if the order has items reserved or on back order.

GridView1 has data about the order, like status, payment details.

GridView2 has data about orderitems, each row displays an item from the order with stock and order quantities

GridView3 has data about backorders, each row displays an item from the order with quantity reserved and quantity on back order. As is no data for GridView3 if order is not on backorder I thought that I can enclose my code inside an if block

if GridView3 isnot nothing then

'getting some data from the cells in GridView3
endif

but the code still executes.

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Web Forms :: Check If Child Node Exists On Treeview?

Jan 24, 2011

I have some data that I am putting on a treeview and have a checkbox on the page to decide if the user wants to order the nodes by date or type.

To do this I need to check if the code has already added a child node so when grouping by the type I don't put it in lots of times.

Lets say I have Type 1 and Type 2 and each have 3 items that would fall under these I want to achieve:

Type 1
Item 1
Item 2
Item 3
Type 2
Item 1
Item 2
Item 3

Instead of:

Type 1
Item 1
Type 1
Item 2

etc etc etc

I tried using the node.Contains function but it doesn't seem to exist (I am using c#).

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Web Forms :: Check If Binary File Already Exists In Database

Sep 20, 2015

I am learning a tutorial, it is about saving mp3 files in database.

Have a look below picture i  can upload a mp3 file multiple time with the same name how to avoid it?

[URL] ...

protected void btnUpload_Click(object sender, EventArgs e)
{
using (BinaryReader br = new BinaryReader(FileUpload1.PostedFile.InputStream))
{
byte[] bytes = br.ReadBytes((int)FileUpload1.PostedFile.InputStream.Length);
string strConnString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;

[Code] .....

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Web Forms :: Check If Record Exists In Table And Prompt User

May 27, 2010

Using 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" ...

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Web Forms :: Check If Control Exists On Master Page Or Web Form?

Nov 9, 2010

I have a function that loops through the control on my page to set attributes. This works fine, except that I only want the attributes to bet set on the controls on the content page, and not on the master page. Is it possible to check where the control resides? Or to only loop through controls on the content page?

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Web Forms :: When The User Press The Button If The Email Exists Want To Show A Message Box Him?

Feb 10, 2010

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#

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How To Check If A Record Exists

Jul 26, 2010

I tried to illustrate the problem by providing the following instructions, unfortunately the data was deleted and the example failed. It is now working. I have been working through one of Scott Mitchells ASP.NET Application Tutorials Title "Using TemplateFields in the GridView Control"

The URL is ...

The example demonstrates a temporary field being used in different ways, one of which involves dates in a Calender. If the HireDate in the example is deleted or not available the program fails. Providing the date is a valid date it works fine....

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Check User Id Already Exists?

May 22, 2010

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?

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Check If Row With Particular Id Exists In Datatable?

Mar 20, 2011

i have two datatable, while adding rows in second datatable, i want to first check whether the id in the second datatable matches as in the first datatable, if not only then it should be added in the second datatable, else it should display a message...

i dont have any Primary Key defined on any column, so the rows could be repeatative.

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