AJAX :: Check Whether Username Exists In Database
Jan 16, 2012I want to develop the feature to check whether username is available in database using ASP.Net and SQL server ....
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Web Forms :: Check Username And Email Address Exists In Database?
Jul 30, 2012In 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
Ajax In UserControl - Want To Check Username Exists Or Not?
Apr 18, 2010i have a signup page and i want to check username exists or not with ajax
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="Simple.ascx.cs" Inherits="UserControls_Simple" %>
نام کاربری:
کلمه عبور
i eant to show label if user exists.how can i do that?
Username Exists Check In ViewModel / DomainModel?
Dec 5, 2010I have ViewModel for Insert/Update/Delete. DI done on controller with Ninject implementing respository patter.
I am little confused. I have UserCreateViewModel bind to Create.aspx once submitted need to check UserName already in DB.
For 1 and 2 I need Constructor DI to call IsUserRegistered method from respository.
1- ViewModel.
2- domain model.
3- service layer. Is it right to add extra layer on to check UserName exists in DB?
4- Someone suggested to use Attribute for that and DI in that.
SQL Server :: Check If UserName Exists Or Not In The Shortest Possible Time?
Dec 4, 2010I am developing a website in ASP.NET with SQL SERVER as backend.
I want to find the best(FASTEST) way by which I can find if USERNAME exists or not.
My application is taking a bit of time finding that out. Do I need to look into my TABLE structure,indexes.
Is there any replacement for the query
Select username from usermaster where username=@Username
AJAX :: How To Check Whether Email Address Already Exists In Database
Aug 2, 2012I 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 RepliesAJAX :: Check Whether A Particular Record Exists In Database Using JQuery
Aug 18, 2015I have a asp:Button and asp:Textbox on Default.aspx page
Code is as below:
<asp:Button ID="Button1" runat="server" Text="Save" Width="80px" CommandName="Update"
OnClientClick="EnableDdlCompany();saveButtonClick();" CommandArgument="Save" OnClick="btnSave_Click"/>
<asp:TextBox ID="txtBarcodeNumber" runat="server" MaxLength="11" Width="230px"
Text='<%# Bind("BarcodeNo") %>' Display="None"
OnTextChanged="TextChanged" AutoPostBack="true"></asp:TextBox>
On button click, I want to call a javascript code to check that If the entered BarCode Number in Textbox already exist in Database, then show an alert "Number already exist" else allow user to save and navigate to Default2.aspx
I can able to do the same checking on TextBox OnTextChanged event using c# code, as below:
protected void TextChanged(object sender, EventArgs e) {
TextBox txtbarcode = fvIPRForm.FindControl("txtbarcodenumber") as TextBox;
if (txtbarcode.Text.Length > 0 && txtbarcode.Text.Length < 11) {
string error = "The Barcode Number " + txtbarcode.Text + " is invalid, the barcode length must be 11 character.";
ScriptManager.RegisterStartupScript(this, typeof(string), "Successful", "alert('" + error + "');", true);
[Code] ....
Here, IPRRequest is the class/.dll file name and IsValidBarcodeTest is a function defined in the class file
But same checking I tried using the c# code on button's OnClick="btnSave_Click" event, but dont know why this event is not firing, I guess due to CommandArgument on button, but I am not sure.
That's why I want to achieve it using Javascript.
SQL Server :: Check If "username" Value In Form Already Exists In DB?
Aug 12, 2010I have aregistration form where the user enters, among other things, a username. The form must make sure that the username is not already taken before the user submits the info.
Here's my code so far in the .aspx.cs:
[Code]....
I'm not sure how to call this function from the .aspx part... .
[Code]....
How To Check A SQL Database Table To See If A Record Exists?
May 10, 2010I have a SQL database that creates a record for every document uploaded by the user to the server. I want to check this table before a user uploads a document to ensure they don't upload a file with name that already exists.
I know how to make the connection and make the SqlCommand to query the table for an existing record. But I don't know how to check the record count from the sqlCommand I made.
Does that make sense?
Using myConnectionCheck As New SqlConnection(myConnectionStringCheck)
Dim myCommandCheck As New SqlCommand()
myCommandCheck.Connection = myConnectionCheck
myCommandCheck.CommandText = "SELECT * FROM Req_Docs WHERE Doc_Name =" & DocName
myConnectionCheck.Open()
myCommandCheck.ExecuteNonQuery()
End Using
Web Forms :: How To Check Whether User Already Exists In Database
Jan 23, 2012what is code of "user already exists in database" using asp.net 3.5
View 1 RepliesWeb Forms :: Check If Binary File Already Exists In Database
Sep 20, 2015I 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] .....
Data Controls :: Check If Table Exists In Database Or Not
Apr 27, 2016I need to check whether table named 'CSE' is existing in database or not. if it exists, i want to drop the table 'CSE'.
View 1 RepliesJavascript - Check Email Id Already Exists In Database When Losing Focus
Mar 18, 2011I 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?
MVC :: Check If Record Exists Before Insert In 2.0 Using Ajax
Jan 11, 2011I want to check if the record is already exists before insert using Ajax ActionLink in Create View. I am getting error 'Object reference not set to an instance of an object.' Here is a code in View :
<div class="editor-label">
<%= Html.LabelFor(model => model.PolicyId) %>
</div>
<div class="editor-field">
<%= Html.TextBoxFor(model => model.PolicyId) %>
<%= Html.ValidationMessageFor(model => model.PolicyId) %>
<em>can not be changed later.</em>
//error occurs here
<%= Ajax.ActionLink("Check", "CheckIfExists", "Life", new { PolicyId = Model.PolicyId }, null)%>
</div>
And Controller action :
public JavaScriptResult CheckIfExists(string PolicyId)
{
if (lifeRepository.IsExists(PolicyId))
return JavaScript("alert(' Already Exists');");
else
return JavaScript("alert(' Not Exists');");
}
AJAX :: Check Whether Email Address Already Exists
Aug 22, 2013How to find that email already exixts using panels and validators...
View 1 RepliesWeb Forms :: How To Check Username And Password Stored In Database
Sep 15, 2010i have login page. how check username and password store in database . plz reply with code.
i did it by form authentication b ut it not work.
Data Controls :: How To Check Username Exist In Database Without Postback
May 7, 2015How to check username is exist in database or not without postback the page...
View 1 RepliesAJAX :: Check Username Availability Using PageMethods
Jun 30, 2012I have tried code, but there is error...
Compilation Error:
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: CS1525: Invalid expression term ')'
Source Error:
Line 8: <script type = "text/javascript">
Line 9: function ShowAvailability() {
Line 10: PageMethods.CheckUserName(document.getElementById("<%=txtUserName.LoginID%%>").value, OnSuccess); Line 11: }
Line 12: function OnSuccess(response) {
Jquery - Check Email Availability With Ajax And Make Page Invalid If Exists
Sep 24, 2010I'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]....
AJAX :: Check Username Availability In MasterPage Using JQuery
Jun 16, 2015I am refering the below link .. how to call or use it from master page.
[URL]....
and is there any change in webconfig for visualstudio 2012.
Forms Data Controls :: Check If Data Exists In Database?
Aug 19, 2010I have a form for data entry which has a checkbox for featured item.
Only one feature item should exists in the database.
How can I check when doing the insert if another item in the table is a feature item?
I would likt to deactivate the one as feature and activate the new one.
How To Use Ajax For Checking Username From Database On Text Change
Sep 4, 2010How to use ajax for checking username from database on text change?
Also give the method for on button click
How To Check If A Record Exists
Jul 26, 2010I 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....
Check User Id Already Exists?
May 22, 2010i 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 RepliesCheck If Row With Particular Id Exists In Datatable?
Mar 20, 2011i 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.