Comparing And Searching For A Username To A Record In A Database?
Jul 1, 2010
For this applications, I will have a table that has a list of users who are "moderators" and they are able to see a part of the website that regular users cannot. I will NOT have a login or anything like that - I have a table that lists all the users who are moderators and if the user who is logged in is a moderator they simply see more of the website.
Right now I am able to get the username of the logged user (these are users who log into a Windows machine, and I simply get their login using a method from System.Security).
The thing I have no idea how to do is actually compare the username to the username in the database that I have. can anyone point me to a tutorial or something that searches through a database to compare the given value and see if there is an identical one in a specific database? I don't want the user to see the database, this is all done "behind the scenes".
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Mar 24, 2010
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Feb 5, 2010
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Jan 27, 2010
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Nov 4, 2011
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This is the error message I get on running the login page.Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.FormatException: Input string was not in a correct format.
Source Error:
Line 46:
Line 47:
Line 48: ElseIf Session("LoginRole") = ("Diary Owner") Then
Line 49:
Line 50: Response.Redirect("DiaryPage.aspx")
Code:
Sub LogBut(sender As Object, e As System.EventArgs) Handles LogButton.Click
Dim connection As New SqlClient.SqlConnection
Dim command As New SqlClient.SqlCommand
Dim adaptor As New SqlClient.SqlDataAdapter
Dim dataset As New DataSet
[code]...
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Controller [Code]....
Model
[Code]....
View
[Code]....
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[Code]....
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[Code]....
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Mar 10, 2010
I got a username and password field which made by myself and a User database which is all manually made
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Feb 16, 2010
so I will admit this is a pretty stupid question. To my defense, I have never done it before. So take pity. I followed Joe Stagner's video on using the built-in authentication. Now, I would like to query a database using VB.net codebehind to verify if the user exists. I am clueless. Yes, I have a connection string already.
[Code]....
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Dec 1, 2010
I am working on a website where when the user logs in, I select their database based on their username. Currently I have a list of all databases in the web.config and I select the Database ID from the username and then read the database string from web.config. What is the most optimal way to implement this scenario?
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I want to develop the feature to check whether username  is available in database using ASP.Net and SQL server ....
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How to use ajax for checking username from database on text change?
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Sep 15, 2010
i have login page. how check username and password store in database . plz reply with code.
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Apr 30, 2010
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Apr 20, 2010
I would like my website to fetch the data for username and password from a database in SQL server and authenticate that. I have used a login control in the website.
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Jun 29, 2012
I'm currently doing sign up page where customer can sign up to use my website.however, when they type username, they will prompt that username is taken.how to check in database if the username is already been taken? i got 2 sign up page. 1st page is where the customer type their username, and password.2nd page is where they type thier personal particulars and then it will store in database..
below are my codes fot my 1st page
protected void btnNext_Click(object sender, EventArgs e)Â {Â
if (!Page.IsValid)Â {Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
return;Â Â Â Â Â Â Â Â Â Â Â
}Â Session["username"] = tbNewId.Text;Â Â
Session["password"] = tbConfirmPassword.Text;Â
Response.Redirect("~/SignUp2.aspx");Â Â Â Â Â }
this is my codes for second page
protected void btnNext_Click(object sender, EventArgs e) {
SqlConnection con = new SqlConnection();
con.ConnectionString = ConfigurationManager.ConnectionStrings["Connection"].ConnectionString;
String sql = "Insert into Customer (Name, Phone, Email, Address, Username, Password) ";
sql = sql + "Values (@Name, @Phone, @Email, @Address, @Username, @Password)";
[code]....
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Jul 10, 2013
IÂ want to show the password from database into Label,I have wright code following
SqlConnection con = new SqlConnection(@"Data Source=TEGADEV1SQL2K5EXPR;Initial Catalog=mydatabase;Integrated Security=True;Pooling=False"); SqlCommand cmd = new SqlCommand("select password from reg where username='" + username + "'", con);
cmd.Parameters.AddWithValue("@username", username); SqlDataAdapter da = new SqlDataAdapter(cmd); DataTable dt = new DataTable(); da.Fill(dt);
Lable.Text=......
I have use datatable how to read data from above code what will be the code wright Lable.Text=...
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