Search results matching tag 'c#'

How a browser communicates with an Activex object?

Dynamic2008 — Tue, 22 Dec 2009 05:00:00 GMT

Background:

I have registered my Activex component (e.g. xxx.dll assembly) into the registry using regasm tool.

I have placed an object element inside my test.aspx page:

<OBJECT id="CtiConnector" name="CtiConnector" classid="clsid:67100952-F2F9-4fe8-921A-xxxxxxxxx"></OBJECT>

My CtiConnector object has a method which returns a value e.g. int Add(int a, int b) {...}

I can call this method using javascript as following:

var result = CtiConnect.Add(1, 2);

Question:

I am just wondering when Add method is called how this method is executed internally?

where is the actual object? on the page itself? How the method is executed? Does it serialize the Add call to something and then deserializes the result?

I want to verify with reasoning which one has a better performance and why?

1. Adding a javascript function which does the Add functionality on the page

2. Or adding the Add function inside my Activex object and implement it with C#

urgent help needed for building a scalable storage solution for a web application

opusleo — Tue, 22 Dec 2009 05:00:00 GMT

Hi,

We currently are running a website where users can upload HD music and images. Originally i started off with 2TB of storage per drive and had a system where i could just add drives, but soon realised that at this rate I would like to have networked drives and would like to access the volume from different machines (Load Balanced). so for storage instead of having drives i switched to networked access and i can scale by just indicating which is the active volume and by volume i have network drives so for example let us say currently i have two volumes

\\system1\d\

\\system2\d\

So I will use which ever is currently active and this helped me scale for different machines also. But after switching from local drives to network drives. I continously run it an issue with "The process cannot access the file xxx because it is being used by another process" exception this is even though i call close and dispose and release all the handles(I am pretty sure i release the handles). I have a few questions

1) Most important is why is this file locking happenign and for the immediate is there an immediate fix that can be done.(URGENT PRODUCTION ISSUE!!!!!)

2) is this mode of access slow ? is there a better way to design drive scalability for over 10 to 20 terrabytes of data?

I am running IIS6, .net 2.0, VS 2008

DD using L2S - Search tool

Kevin Alkema — Tue, 22 Dec 2009 05:00:00 GMT

Does anyone have an example of how to implement a search function. I have an application that I need to have a Search Text box on the master page. I've tried several ways to get this done but they have not worked out. I've tried using the GridDataSource.Where (which seemed to get me closest) but then you can't use the AutoGenerateWhereClause (which I then looped through and added manually) and you have to do a databind which causes issues with paging, etc.

Receiving messages in asp.net 2.0

Liyakath — Mon, 21 Dec 2009 05:00:00 GMT

receive messages in asp.net 2.o.

users can send and recieve messages in asp.net 2.0 like Orkut, Facebook

Re: Receiving messages in asp.net 2.0

Liyakath — Mon, 21 Dec 2009 05:00:00 GMT

we send messages using smtp server that we configure in web.config

how to receive that message in our application

sendind and receiving messages in asp.net

Liyakath — Mon, 21 Dec 2009 05:00:00 GMT

we use smtp server to send messages in asp.net applcation

but how to receive that messages in our asp.net application.

C# File Upload works...sometimes!

BrianFan — Mon, 21 Dec 2009 05:00:00 GMT

I have a file upload feature in one of aspx pages which allows users to upload multiple files at once.  It works perfectly when I am debugging locally, but when

my users hit the website, nothing will upload, only a randon PDF file here and there.  The size of the files being uploaded are less than 800KB.  Below is the code.

Here is the ASP code:

<div style="text-align:left; margin-top:10px; border:inset 3px; width:750px;">
<h3 style="color:White; text-decoration:underline;">Have a Photo of the Item?</h3>
<input id="FindFile" type="file" size="50" runat="server" name="FindFile" />  <asp:button 
        id="AddFile" runat="server" Text="Add" SkinID="LoginButton" 
        onclick="AddFile_Click"  />
     
<asp:button id="RemvFile" runat="server" Text="Remove" SkinID="LoginButton" 
        onclick="RemvFile_Click" />
    <br />
    <asp:ListBox style="margin-left:50px;" ID="ListBox1" runat="server" Height="100px" Width="500px">
    </asp:ListBox>
 </div>
<br />
<div style="margin-left:50px;">
<asp:Panel ID="pnlButtons" Visible="false" runat="server" Width="60%">
<table cellspacing="3px">
<tr>
<td><asp:Button ID="btnSave" runat="server" Text="Save" SkinID="LoginButton" 
        onclick="btnSave_Click" /></td>
<td><asp:Button ID="btnClearAll" runat="server" Text="Clear All" 
        SkinID="LoginButton" onclick="btnClearAll_Click" /></td>
<td><asp:Button ID="btnCancel" runat="server" Text="Cancel" SkinID="LoginButton" /></td>
<td><asp:Button ID="btnDelete" runat="server" Text="Delete" SkinID="LoginButton" 
        onclick="btnDelete_Click" /></td>
</tr>
</table>
</asp:Panel>

Here is the C# code:

        foreach (System.Web.UI.HtmlControls.HtmlInputFile HIF in hif)
        {
            try
            {
                byte[] imageSize = new byte[HIF.PostedFile.ContentLength];
                HttpPostedFile uploadedFile = HIF.PostedFile;

                string strFileName = HIF.PostedFile.FileName;
                string[] fileParts = strFileName.Split('\\');
                int numOfIndex = fileParts.Length - 1;
                string fileName = fileParts[numOfIndex].ToString();
                string[] fileExt = fileName.Split('.');
                string extension = fileExt[1].ToString();
                string contentType = HIF.PostedFile.ContentType;
                uploadedFile.InputStream.Read(imageSize, 0, (int)HIF.PostedFile.ContentLength);

                if (fileTypes.Contains(extension))
                {
                    objGetExistingFileCount = new Part_Tracker();
                    objGetExistingFileCount.GetCountOfExistingFileName(fileName, Convert.ToInt32(lblChangeReqID.Text));

                    if (objGetExistingFileCount.ExistingFileCountByChangeReqID == 0)
                    {
                        objUploadFile = new Part_Tracker();
                        objUploadFile.UploadFileForRFC(lblChangeReqID.Text, fileName, contentType, imageSize);
                    }
                    else
                    {
                        objUploadFile = new Part_Tracker();
                        objUploadFile.UploadFileForRFC(lblChangeReqID.Text, "+" + fileName, contentType, imageSize);
                    }
                }
            }
            catch (Exception err)
            { }
        }
        hif.Clear();
        ListBox1.Items.Clear();

And here is the C# from my class library for when objFileUpload.UploadFileForRFC gets called:

public bool UploadFileForRFC(string ChangeReqID, string FileName, string ContentType, byte[] imageSize)
        {
            _wasSuccess = true;
            SqlConnection objConn = null;
            try
            {
                objConn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ConnectionString);
                objConn.Open();
                SqlCommand objCmd = new SqlCommand("mrap_Upload_RFC_PartTracker_Files", objConn);
                objCmd.CommandType = CommandType.StoredProcedure;

                SqlParameter paramReturnValue = new SqlParameter();
                paramReturnValue.ParameterName = "@FileCount";
                paramReturnValue.SqlDbType = SqlDbType.Int;
                paramReturnValue.Direction = ParameterDirection.ReturnValue;

                objCmd.Parameters.Add(new SqlParameter("@ChangeReqID", ChangeReqID));
                objCmd.Parameters.Add(new SqlParameter("@FileName", FileName));
                objCmd.Parameters.Add(new SqlParameter("@File", imageSize));
                objCmd.Parameters.Add(new SqlParameter("@ContentType", ContentType));
                objCmd.Parameters.Add(paramReturnValue);
                objCmd.ExecuteNonQuery();

                FileCount = Convert.ToInt32(objCmd.Parameters["@FileCount"].Value);
            }
            catch (Exception e) { _wasSuccess = false; }
            finally
            {
                if (objConn != null)
                {
                    objConn.Close();
                }
            }

            return _wasSuccess;
        }

I'm not sure why this would work locally and not when I publish it on the server. It's an important part of the application, so I really appreciate everyone's help in figuring it out. The server is .NET 3.5, Server 2003, and all clients are Vista Enterprise.

If anyone has a file uoload that does multiple files at once I would be more than happy to replace this code with something that works consistently. Like I said, it works with one file (a PDF), but won't take any other files, not even other PDF's. There is nothing restrictly the file size that I can see, so I really don't understand what the problem is.

Thanks for the help.

Brian

Re: Update two table at a time using inner join

faisale83 — Sat, 19 Dec 2009 05:00:00 GMT

Dear Yousef_Jadallah,

see my query there is two table data have to change at a time where the condintion "customer_ID" is equal

UPDATE a
SET a.customer_Mobile1 = @customer_Mobile1, a.customer_Mobile2 = @customer_Mobile2,
a.customer_Email = @customer_Email
from
Customers a INNER JOIN Cusomers_Details b
ON a.customer_id = b.customer_ID

Re: Assign roles to user according to functionality

faisale83 — Sat, 19 Dec 2009 05:00:00 GMT

use attributes

Attributes are a new kind of declarative information. We can use attributes to define both design-level information (such as help file, URL for documentation) and run-time information (such as associating XML field with class field). We can also create "self-describing" components using attributes.

I think this link will help you

http://msdn.microsoft.com/en-us/library/aa288454%28VS.71%29.aspx

Put data from .cs file to .aspx file

nvleeuwen88 — Sat, 19 Dec 2009 05:00:00 GMT

Hi asp.net builders,

I'm new to asp.net and I am trying to learn it so I was making a web application which needed to get some data from the database and show it in the website.

So I thought let's make a database class to make it in the whole application a little bit easier to get data from the database. So I made a function called getRow which is getting one row from the database by the query.

 public DataSet getRow( String query, String table )
        {
            try
            {
                this.open();

                SqlDataAdapter da = new SqlDataAdapter(query, this.conn);
                //create dataset to insert data in it
                DataSet ds = new DataSet();
                da.Fill(ds, table);
                
                this.close();
            }
            catch(SqlException ex)
            {
                throw ex;
            }

            return ds;

        }

But I get every time a error under the word Dataset so I was looking on the internet but could not find it. I think it's because I'm not have all the using

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.SqlClient;
using System.Configuration;

The type or namespace name 'DataSet' could not be found (are you missing a using directive or an assembly reference?) Almeerse\Almeerse\classes\database.cs

So maby someone can help me to fix this problem. And can someone tell me how I can show the data which I get from the database. Because in the .aspx file I need to show the data.

Thnx's for all the tips/advices.

Nick