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  • backgroundworkers or threadpools

    - by vbNewbie
    I am trying to create an app that allows multiple search requests to occur whilst maintaining use of the user interface to allow interaction. For the multiple search requests, I initially only had one search request running with user interaction still capable by using a backgroundworker to do this. Now I need to extend these functions by allowing more search functions and basically just queueing them up. I am not sure whether to use multiple backgroundworkers or use the threadpool since I want to be able to know the progress of each search job at any time.

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  • VB2008 Resolution-based resizing

    - by Logan
    Hi, Usually I am a web developer so this is probably a very novice question. I recently made an app in VB2008, but I developed it in a huge reso (1920x1200). The person that will be using it still uses 800x600 reso. Is there any simple way I can resize the entire interface to fit any resolution? I didn't really think about it at all while I was making the program.

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  • How to "pin" C++/CLI pointers

    - by Kumar
    I am wrapping up a class which reading a custom binary data file and makes the data available to a .net/c# class However a couple of lines down the code, i start getting the memory access violation error which i believe is due to the GC moving memory around, the class is managed Here's the code if ( ! reader.OpenFile(...) ) return ; foreach(string fieldName in fields) { int colIndex = reader.GetColIndex( fieldName ); int colType = reader.GetColType( colIndex ); // error is raised here on 2nd iteration } for ( int r = 0 ; r < reader.NumFields(); r++ ) { foreach(string fieldName in fields) { int colIndex = reader.GetColIndex( fieldName ); int colType = reader.GetColType( colIndex ); // error is raised here on 2nd iteration switch ( colType ) { case 0 : // INT processField( r, fieldName, reader.GetInt(r,colIndex) ); break ; .... } } } .... i've looked at interior_ptr, pin_ptr but they give an error c3160 cannot be in a managed class Any workaround ? BTW, this is my 1st C++ program in a very long time !

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  • properties declared beside the constructor c++

    - by numerical25
    I am very very new to C/C++ and not sure what the method is called. But thats why I am here trying to find the answer. let me show you an example MyClass::MyClass():valueOne(1), valueTwo(2) { //code } Where valueOne and valueTwo class properties that are assigned values outside of the body, what method is this called and why is it done this way. Why not do it this way MyClass::MyClass() { valueOne = 1; valueTwo = 2 //code } if anyone can help me out that will be great. thanks

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  • How to add an existing file to a project in VS2008 Add-in?

    - by miliu
    I'm trying to create an add-in for VS2008 to automate the unit tests. The test classes are located in a different project of the same solution. After the test class file is generated, I want to add it to that project automatically and make it active document. I could easily locate the test project, and I also found that testProject.DTE.ItemOperations.AddExistingItem(fileName) can be used to add an existing item to a project. However, this call always adds the item to the current project, instead of the testProject. I'm sure there must be an easy way to do it, but I couldn't figure it out. Your help is much appreciated.

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  • Automatic Step over

    - by Vaccano
    I have been getting this error message when I step into some methods Do you want to continue being notified when an Automatic step over occurs? I usually answer Yes and I get taken to the line I want to step to. However, I just pressed No (cause I was tired of the dialog box always popping up). When I did that it skipped a lot of code I wanted to step through. Now when I step into my method it is skipping my method (and jumping to the finally block because the method I am trying to step into is throwing an exception). How can I change my answer back to Yes? I would prefer it never ask me (default showing the code), but if faced with the choice of it skipping the code I need to see, or having a NagBox, I will take the NagBox.

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  • Is there any plugin available for integrating WSAD 5.1 and VSS?

    - by ria
    I am looking for a plugin that could integrate VSS- the CM tool I am using and WSAD 5.1. I tried downloading the version 1.6.0 of VSS plugin from http://sourceforge.net/projects/vssplugin/ , but that did not help as it seems this version of the plugin does not support WSAD 5.1 as it uses eclipse 2.1 Any help would be appreciated.

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  • can not find my lib files to link

    - by numerical25
    I am trying to find a lib file that I created. I changed the configuration type to static lib. Then I rebuild the application. When I go to the debug folder in windows, I see the .lib file. but when I create a new application and try to add it to "additional Library Directories" I go to the exact folder and it does not show up.

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  • Use currently logged-in user in query

    - by Degan
    I am using VisualWebDeveloperExpress2008 with Access as the membership provider. I have some cases where I want users to edit their own data. This would involve a query where the UserId should equal the UserID of the user who is using the site. I am expecting to use WHERE UserId = ?, but I have not found out where to direct "?". The IDE gives several choices, but I am uncertain which to choose. This, while it looks promising does not work: <SelectParameters> <asp:ProfileParameter Name="UserID" PropertyName="UserId" Type="Int32" /> </SelectParameters> What is best to use for the Select Parameter?

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  • turning a project into a static library

    - by numerical25
    I checked out the microsoft documents. it shows how to create a static library upon creation of the project. but not necessarily on how to convert a previously made project, into a static library. So my question is, where do I go to turn my previously made project, into a static lib. so I can include it in my other projects

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  • ASP.NET 2.0 control is not shown up un VS 2010 toolbox

    - by user353653
    Hi, I have developed some ASP.NET controls in .NET 2.0 with VS 2008. Now, I upgraded my project to VS 2010 but did not change the target framework to .NET 4.0 yet. But, surprisingly, I found that, the toolbox is not showing the bitmaps for the control added to the toolbox in VS 2010. Moreover, when I dragged and dropped a control (.NET 2.0) from the toolbox to my Web Form, I see some junk xml code added to my web form. I dont know if I need to recompile the .NET 2.0 controls with VS 2010 ? or what should I do in order to make the controls compatible for both in VS 2008 and VS 2010 ? I found that, there is no problem with Windows Forms control, rather it is just with ASP.NET Controls.

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  • Cannot step into .NET framework source with VS2008 SP1.

    - by Vilx-
    Somehow my VS2008 SP1 has lost the ability to step into .NET framework sources. I've played around with checkboxes to no end; I've re-deleted the Symbol cache folder a dozen times; and I've tried all kinds of debug symbol servers. All it does is download some .PDB files, but when I try to select a stack frame in .NET, I always get the message about no source available and "do you want to view disassembly". What gives? Added: Web application; Windows Vista Business x32; .NET 3.5 SP1.

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  • Can someone answer this for me?

    - by Dcurvez
    okay I am totally stuck. I have been getting some help off and on throughout this project and am anxious to get this problem solved so I can continue on with the rest of this project. I have a gridview that is set to save to a file, and has the option to import into excel. I keep getting an error of this: Invalid cast exception was unhandled. At least one element in the source array could not be cast down to the destination array type. Can anyone tell me in layman easy to understand what this error is speaking of? This is the code I am trying to use: Dim fileName As String = "" Dim dlgSave As New SaveFileDialog dlgSave.Filter = "Text files (*.txt)|*.txt|CSV Files (*.csv)|*.csv" dlgSave.AddExtension = True dlgSave.DefaultExt = "txt" If dlgSave.ShowDialog = Windows.Forms.DialogResult.OK Then fileName = dlgSave.FileName SaveToFile(fileName) End If End Sub Private Sub SaveToFile(ByVal fileName As String) If DataGridView1.RowCount > 0 AndAlso DataGridView1.Rows(0).Cells(0) IsNot Nothing Then Dim stream As New System.IO.FileStream(fileName, IO.FileMode.Append, IO.FileAccess.Write) Dim sw As New System.IO.StreamWriter(stream) For Each row As DataGridViewRow In DataGridView1.Rows Dim arrLine(9) As String Dim line As String **row.Cells.CopyTo(arrLine, 0)** line = arrLine(0) line &= ";" & arrLine(1) line &= ";" & arrLine(2) line &= ";" & arrLine(3) line &= ";" & arrLine(4) line &= ";" & arrLine(5) line &= ";" & arrLine(6) line &= ";" & arrLine(7) line &= ";" & arrLine(8) sw.WriteLine(line) Next sw.Flush() sw.Close() End If I bolded the line where it shows in debug, and I really dont see what all the fuss is about LOL

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  • How do I link up a button click event between a class and a module automatically?

    - by CowKingDeluxe
    I have this code (which doesn't work): Public Class Form1 End Class Public Module test1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Form1.Button1.Click MsgBox("HI") End Sub End Module I know I could handle the button click event in Form1, and then call a function in test1, but I would like to handle the button click event directly in the test1 module. Is there a way to automatically send UI events from the Form1 class to another module?

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  • How can i add column name in list generic?

    - by Phsika
    class MyExcelSheets { public List MyColumnNames { get; set; } } how can i add Excel data's column name in "List MyColumnNames ". it returns to me Object reference not set to an instance of an object. i want to use above class in: myexcelSheet = new MyExcelSheets(); myexcelSheet.MyColumnNames = new MyExcelSheets().MyColumnNames; foreach (DataColumn col in dTable.Columns) myexcelSheet.MyColumnNames.Add(col.ColumnName.ToString()); How can i solve it? Error: NullReferenceException

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  • How can i get more than one jpg. or txt file from any folder?

    - by Phsika
    Dear Sirs; i have two Application to listen network Stream : Server.cs on the other hand; send file Client.cs. But i want to send more files on a stream from any folder. For example. i have C:/folder whish has got 3 jpg files. My client must run. Also My server.cs get files on stream: Client.cs: private void btn_send2_Click(object sender, EventArgs e) { string[] paths= null; paths= System.IO.Directory.GetFiles(@"C:\folder" + @"\", "*.jpg", System.IO.SearchOption.AllDirectories); byte[] Dizi; TcpClient Gonder = new TcpClient("127.0.0.1", 51124); FileStream Dosya; FileInfo Dos; NetworkStream Akis; foreach (string path in paths) { Dosya = new FileStream(path , FileMode.OpenOrCreate); Dos = new FileInfo(path ); Dizi = new byte[(int)Dos.Length]; Dosya.Read(Dizi, 0, (int)Dos.Length); Akis = Gonder.GetStream(); Akis.Write(Dizi, 0, (int)Dosya.Length); Gonder.Close(); Akis.Flush(); Dosya.Close(); } } Also i have Server.cs void Dinle() { TcpListener server = null; try { Int32 port = 51124; IPAddress localAddr = IPAddress.Parse("127.0.0.1"); server = new TcpListener(localAddr, port); server.Start(); Byte[] bytes = new Byte[1024 * 250000]; // string ReceivedPath = "C:/recieved"; while (true) { MessageBox.Show("Waiting for a connection... "); TcpClient client = server.AcceptTcpClient(); MessageBox.Show("Connected!"); NetworkStream stream = client.GetStream(); if (stream.CanRead) { saveFileDialog1.ShowDialog(); // burasi degisecek string pathfolder = saveFileDialog1.FileName; StreamWriter yaz = new StreamWriter(pathfolder); string satir; StreamReader oku = new StreamReader(stream); while ((satir = oku.ReadLine()) != null) { satir = satir + (char)13 + (char)10; yaz.WriteLine(satir); } oku.Close(); yaz.Close(); client.Close(); } } } catch (SocketException e) { Console.WriteLine("SocketException: {0}", e); } finally { // Stop listening for new clients. server.Stop(); } Console.WriteLine("\nHit enter to continue..."); Console.Read(); } Please look Client.cs: icollected all files from "c:\folder" paths= System.IO.Directory.GetFiles(@"C:\folder" + @"\", "*.jpg", System.IO.SearchOption.AllDirectories); My Server.cs how to get all files from stream?

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  • VB looping complication

    - by user1819469
    I have to come up with a program that shifts names in a text box a random amount of times. I have gotten everything up to the point where the names shifts a random amount of times. It only shifts its once, but my messagebox appears through the code as many times as the names should be shifting once i click ok. Does anyone know why the loop is not working for the name shifts. I was thinking maybe the messagebox needs to control the loop, but I have searched endlessly and cannot find how that would be done. Any suggestions or referrals to other sites would be nice thanks. My code is below. Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim RandomNumber As Integer Dim min, max As Integer Dim temp, temp2, temp3, temp4, temp5, temp6 As String Dim i As Integer min = 3 max = 11 Randomize() RandomNumber = Int((max - min + 1) * Rnd() + min) temp = n1.Text temp2 = n2.Text temp3 = n3.Text temp4 = n4.Text temp5 = n5.Text temp6 = n6.Text For i = 0 To RandomNumber - 1 n1.Text = temp6 n2.Text = temp n3.Text = temp2 n4.Text = temp3 n5.Text = temp4 n6.Text = temp5 MessageBox.Show("Shift " & i & " of " & RandomNumber & " complete") Next End Sub End Class

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  • Add text into a desktop application

    - by John
    Hello, I would like to come up with a simple application that would add a specific phrase into a specific location on a desktop application. I assume this isn't very hard, but I'm kind of new. Any help?? Thanks!

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  • .net c# datagridview populating with non database data/setup

    - by flavour404
    Hi, I have never used the datagridview in any other scenario other than one where it is populating by a database so suddenly my mind goes blank... I have 10 tubes, each with 8 vertical positions within it, so I have a 10 by 8 grid basically. Each has of those slots has (or not) an image in a folder. How do I get a datagridview to reflect this information, draw a grid, check the folder and if the image exists paint it white, and if not paint it red? Sorry it if sounds a little odd, thanks, R.

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