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Hello all, this is my login script but Im having trouble sending it to the "action="checklogin.aspx" page. I used to use ASP 3.0 and I think the concept of this may have changed and I'm overlooking something very simple Can anyone help the 2 pages are below:
login.aspx....
--------------------------------------------------
<script language="c#" runat="server">
void Page_Load()
{
welcomeNote.Text = "<center><b>Please enter your Username and Password to login to the GDCLTD Admin System:</b></center>";
}
</script>
<html>
<head>
<title>GDCLTD ASP.NET BETA</title>
</head>
<body>
<asp:label id="welcomeNote" runat="server" />
<br / >
<center><br /><br /><a href="index.asp"><img src="images/earthlogo.jpeg" height="230" width="194" alt="Global Development Consultancy Limited logo"border="0"></a></center>
<br /><br /><p><center><a href="http://www.gdcltd.net">http://www.gdcltd.net</a></center></p>
<br />
<center>
<form action="checklogin.asp" method="post" id="frmLogin" runat="server">
<asp:Table id="loginTable" border="1" width="25%" runat="server">
<asp:TableRow>
<asp:TableCell>
<center>
<br />
<br />
Username: <asp:textbox id="username" runat="server" size="18" runat="server"/>
<br />
Password: <asp:textbox id="password" runat="server" size="18" runat="server" />
</center>
<br />
<br />
<center>
<input type="Submit" Value="Login">
<input type="RESET">
</center>
<br />
<br />
</asp:TableCell>
</asp:TableRow>
</asp:Table>
</form>
</center>
</body>
</html>
------------------------------------------------
checklogin.aspx
------------------------------------------------
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>
<script language="c#" runat="server">
void Page_Load()
{
string strConnection = "Provider=Microsoft.Jet.OleDb.4.0;";
strConnection += @"Data Source=C:\gdcltdDotNet\gdcltd.mdb";
string strUsername = Request.Form["username"]; //get username from login.aspx
string strPassword = Request.Form["password"]; //get password from login.aspx
string strSQL = "SELECT * FROM tbl_users WHERE username = '" + strUsername + "';";
//try and make connection
try
{
OleDbConnection objConn = new OleDbConnection(strConnection);
OleDbCommand objCommand = new OleDbCommand(strSQL, objConn);
OleDbDataReader objReader = null;
objConn.Open(); //open connection to database
objReader = objCommand.ExecuteReader();
while (objReader.Read() == true)
{
if(objReader["username"].ToString() == strUsername)
{
if(objReader["password"].ToString() == strPassword) // username and password match
{
Response.Write("Details correct");
}
}
}
objReader.Close();
objConn.Close();
}
catch(Exception e)
{
Response.Write(e.Message); //write error message
}
}
</script>
<html>
<body>
</body>
</html>
-------------------------------------------------
If anyone knows how this could be done better or used in one page or something, can you let me know as I'm just starting out in asp.net 
-- modified 19-Aug-21 21:01pm.
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If anyone knows how this could be done better or used in one page or something, can you let me know as I'm just starting out in asp.net
Hi,
You could just have one page to serve the purpose. This 'postback' feature, is actually the beauty of ASP.NET (in my opinion) 
Here is a sample code in VB.NET. Sorry I'm not familiar with C#, but you could adapt the code easily.
<script runat="server">
Sub Page_Load(obj as Object, e as EventArgs)
'Put any code to execute here during page load
End Sub
Sub btnLogin_Click(obj as Object, e as EventArgs)
'Retrieve username and password using these codes
Dim strUserName as String
Dim strPassword as String
strUserName = txtUserName.Text
strPassword = txtPassword.Text
'Put your authentication code here, eg. access database
End Sub
</script>
<html>
<head>
<title>Login Page</title>
</head>
<body>
<form runat="server">
<p>User name: <asp:TextBox id="txtUserName" runat="server" />
<p>Password: <asp:TextBox id="txtPassword" textmode="password" runat="server" />
<p><asp:Button id="btnLogin" text="Login" onClick="btnLogin_Click"
runat="server" />
</form>
</body>
</html>
Enrico
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I can't find IsPostBack in your code?
Rickard Andersson@Suza Computing
C# and C++ programmer from SWEDEN!
UIN: 50302279
E-Mail: nikado@pc.nu
Speciality: I love C#, ASP.NET and C++!
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I have I did that got it working thanks though I agree it is a good feature
-- modified 19-Aug-21 21:01pm.
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Hello all, this is my login script but Im having trouble sending it to the "action="checklogin.aspx" page. I used to use ASP 3.0 and I think the concept of this may have changed and I'm overlooking something very simple Can anyone help the 2 pages are below:
login.aspx....
--------------------------------------------------
void Page_Load()
{
welcomeNote.Text = "<center><b>Please enter your Username and Password to login to the GDCLTD Admin System:</b></center>";
}
<title>GDCLTD ASP.NET BETA
<asp:label id="welcomeNote" runat="server">
http://www.gdcltd.net
<asp:table id="loginTable" border="1" width="25%" runat="server">
<asp:tablerow>
<asp:tablecell>
Username: <asp:textbox id="username" runat="server" size="18">
Password: <asp:textbox id="password" runat="server" size="18">
-------------------------------------------------------------------
checklogin.aspx
--------------------------------------------------------------------
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>
void Page_Load()
{
string strConnection = "Provider=Microsoft.Jet.OleDb.4.0;";
strConnection += @"Data Source=C:\gdcltdDotNet\gdcltd.mdb";
string strUsername = Request.Form["username"]; //get username from login.aspx
string strPassword = Request.Form["password"]; //get password from login.aspx
string strSQL = "SELECT * FROM tbl_users WHERE username = '" + strUsername + "';";
//try and make connection
try
{
OleDbConnection objConn = new OleDbConnection(strConnection);
OleDbCommand objCommand = new OleDbCommand(strSQL, objConn);
OleDbDataReader objReader = null;
objConn.Open(); //open connection to database
objReader = objCommand.ExecuteReader();
while (objReader.Read() == true)
{
if(objReader["username"].ToString() == strUsername)
{
if(objReader["password"].ToString() == strPassword) // username and password match
{
Response.Write("Details correct");
}
}
}
objReader.Close();
objConn.Close();
}
catch(Exception e)
{
Response.Write(e.Message); //write error message
}
}
--------------------------------------------------------------------------------------
If anyone knows how this could be done better or used in one page or something, can you let me know as I'm just starting out in asp.net
modified 19-Aug-21 21:01pm.
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Hi,
I discovered a wierd asp.net problem yesterday, for some reason I can only view my asp.net pages on msnexplorer. This means that I can't debug or test my pages in IE6, the controls all come up but the code won't work. I tried reinstalling the framework but for some reason this won't work. Any help would be vastly apperciated.
Thanks
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akula wrote:
the controls all come up but the code won't work
How does the code not work? Is it a client side browser error or an error on the server side?
Some more detaild would help us to help you
BTW I use IE6 and all my ASP.NET stuff works fine.
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Sorry about that,
For example I just put a text box and a button on a form and write some code that makes the text box display hello. I complied that and attemped to debug it and start it without debuging, the IE window comes up and the textbox and button are there, but when I click the button it fails to change the text boxes text. I then tried to go to that directory by typing in localhost/webapplication1/webform1.aspx, this produced the same effect in IE. However, If I attempt to do that in MSNExplorer, the code works perfectly, and the text box contents change. On my old computer IE6 worked perfectly as well.
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IE6 won't run the test samples either, it will only show the controls, but MSNExplore will run the samples, I really need it to get fixed so I can debug the app in the IDE.
Thanks,
John
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Hi, everyone!
Please look at the following codes,
--------
--------
I want to guide user to view a new page (b.html) when
clicking button "B1". But the above codes do not work.
How to resolve the trouble?
Cheers,
George
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George Ma wrote:
<input type="button" value="button" name="B1" onclick="b.html">
should be:
<input type="button" value="button" name="B1" onclick="javascript: window.location = 'b.html'">
Remember the onclick event just fires off the code assigned to it. It does not know how to actually handle things like b.html.
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Thanks, Paul!
I have worked it out under your suggestions.
Cheers,
George
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'replace' is a method of location, which takes the URL you want to load as a parameter. There is loads of this stuff in the Netscape online files (developer.netscape.com)
On a possibly interesting note, it can also be put into a javascript function - ie. Your button calls a validation function, which determines which fields have been populated. According to this information you choose to send the user to different URLs (location.replace) instead of either failing the form or submitting it.
HTH ![Rose | [Rose]](https://codeproject.freetls.fastly.net/script/Forums/Images/rose.gif)
The following statement about your geekness is true. The previous statement about your geekness is false.
GCS/IT/P d- s: a- C++++$ UL+>++++ P+ L++$ E- W+++$ N !o K+ w++$ O---- M--
PS- PE Y+ PGP--- t !5 X- tv b+++ DI++ D+ G++ e++ h--- r+++
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Thanks, Megan!
Your codes works fine!
Cheers,
George
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hi...
i am having a class which contains 2 listbox and one textbox..i want to send data to this textbox from another appln..so can u tell how to get the handle for the textbox alone..i don't have nuch knowldege in java...i am working in VC++
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Hi, everyone!
How to use JSP or Javascript to get resolution rate
(for example, 800*600, 1024*768, ... )?
Cheers,
George
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George Ma wrote:
How to use JSP or Javascript to get resolution rate
(for example, 800*600, 1024*768, ... )?
screen.width and screen.height, but only in IE.
It is not 100% accurate though and I don't think there is a 100% accurate way of doing it apart from embedding some Java Applet into the page (which would be overkill.)
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Thanks, Paul!
Your codes works fine!
Cheers,
George
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Hi, everyone!
In the parent page, I want to pop up a child page at the
specified location of the parent page and have a specified
width and height.
How to use JSP to do it?
Cheers,
George
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George,
I the result you want can be achieved by using javascript on the client.
Have a look at the window object: showModalDialog and showModelessDialog and using an IFrame in the pop-up child window. (I recommend the IFrame because it allows you to treat the content like a regular web page but the entire child window can be made modal to the parent window...
I hope this helps.
Michael Heckman
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Thanks, MHeckman pal!
Your method is nice!
Cheers,
George
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Hi, everyone!
I noticed that in java.sun.com, for each type
of OS, there are two materials deals with Java
to download, they are JRE and JDK.
My question is, what is the difference between
JRE and JDK?
If I just want to Programming with Java, I think
I only need to download JDK. Am I correct?
Cheers,
George
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The JRE is the Java Runtime Environment and the JDK is the Java Development Kit.
You would use the JDK to write and run software and you would use the JRE to run it.
Dave.
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Thanks, Dave pal!
I have got the point.
Cheers,
George
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JDK (Java Development Kit) is what is needed to develop and deploy java application i.e. a kind-of-interpreter/compiler for Java since it contains the compilers and debuggers. Its needed by the Java Developer/programmer.
JRE(Java Runtime Environment is to be used by the Java application user and consists of the Java Virtual Machine, the Java platform core classes, and supporting files - hence JRE is neede d to run Java Application
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