R.Trifonov's Q&A profile

• Windows Forms Developer enabled

  Why not allow, the users use a control to use the desingher features Hi, I've managed to get the DesignSurface working, including the ISelectionService. But I can't figure out how to disable the DesignSurface on-the-fly... Is it possible to do th ...Show All

• Windows Forms Making my form visible to other classes

  Hi, Im writing a program in managed c++ in which there is a class called "World" and a form "Form1" amongst other things. I would like 'World' to have a pointer to my form so it could access properties in that form. So I have declared a static data member in World.h of type Form1 which required me to make a forward declaration of Form1 in World.h. However when my form is created and it tries to pass a reference to itself back to World to hol ...Show All

• Visual Studio Express Editions Continuing despite exceptions

  I have designed a class that throws an exception in cases when it gets wrong input. How can I continue program execution normally even after it throws an exception For instance, if in the constructor I throw an ArgumentException, I want to continue processing the rest of the input. Right now, I have code that looks like this (to create a new instance of the class): RandomString randomString=null; try { randomString = new RandomString( comboB ...Show All

• Visual C# Sort using directives region

  In visual studio 2005, is there a way to automatically sort the using directives region and remove unused using statement in the beginning of the C# code Thank you C# dev There is no way in the IDE to sort/order the Using directives. Also how would you define unused using statements The IDE in fact would correctly not remove any using statements since it does not know when the developer might reference ...Show All

• Visual C# Haw to read-out xls file; to write to .xls file?

  Hello everybody, I'm looking in whole internet (and in this forum to) nothing completly works. Ok, here is the problem. In the project that i'm working on, i have a: 1) "DataGrid1", which's DataSource is "DataSet1", which Contains one Table - "DataTable1". They all are empty, only the columns of "DataTable1" have names (for egz: "first_col",..."second_col") 2) Excel file on my Hdd - "c:\1.xls" I need the program to 1) Load the content ...Show All

• Windows Forms How to Populate the chunk of data (100 rows) each time to Datagrid when the user scrolls through the list of Millions rows?

  I would like to achieve this with Datagrid. I have a datagrid with a table and set of columns. The dataset I dynamically generate may contain 10000 through 1000000 rows. I wanted to populate 100 rows first, and when the user navigates to 100th row and then goes next record, i wanted to populate or add next 100 rows to the datagrid and so on like this. I also have a scroller. If the user uses to scroller to reach the bottom of the first 100 ro ...Show All

• Visual J# converting vj++ com.ms.com.Variant class to vj# equivalent

  we have a sample code in out vj++ project which we are trying to convert to vj# as bleow, IHTMLElement ie=(IHTMLElement)actionElement.getPeer(); mshtml.IHTMLElement3 iet=(mshtml.IHTMLElement3)ie; boolean b1=iet.FireEvent("onchange",new Variant("onchange")); // the above  line gives compiler error DClickActionPerformer.java(115): Actual parameter for 'byref System.Object' must be assignable not sure how we can convert to vj# like what wil ...Show All

• Visual C++ CBitmap - Simple example

  Hi, I am trying to load some images in a Picture Area. I only have the pointers to the images, and this pointers are of the type unsigned long* (I can also convert it to IplImage* to use with OpenCV). This unsigned long* get the images grabbed from an camera and I would like to display these images in this Picture Area (it is real time, I get the images from my camera and display them). I have tryied to use this (HBITMAP)LoadImage function, but ...Show All

• SQL Server i want a good preview about sql dmo >> please answer ?

  i want a good preview about sql dmo what is it and how to use with vb.net applications thanks SQL DMO is an API that exposes properties of SQL server enabling you to create an application that can manipulate objects within the server. I believe that the SQL Server Management Studio was built using SQL-DMO. There is also a web-based SQL Server Manager (similar to the one for MSSQL 2000) that is being developed. You can also us ...Show All

• Visual Studio Tools for Office save a document without the action pane

  hi all, ive created a COM add-in button on the Standard toolbar, that when clicked opens a custom template with an action pane. all works well but my problem is when the user saves the document (the custom template), the saved document is saved with the action pane and all its functionality. im openning the custom template with the WordApp.Documents.Add(...) or WordApp.Documents.Open(...) methods. my question is if it is possible to save the doc ...Show All

• Windows Live Developer Forums COM interface for Live Messenger

  We had a full COM interface for Messenger 5.0 - able to control many aspects of the client as well as receive events etc. Does WML have such an API/COM interface It does not seem like it does. I looked through the installed files I got and none exposes any functionality except msncall.exe, but that is for placing calls. I can also not find any documentation that hints it would support it. ...Show All

• .NET Development Moving from CDO to System.net.mail, cdoanonymous?

  In CDO I could use: 'Type of authentication, NONE, Basic (Base64 encoded), NTLM objMessage.Configuration.Fields.Item( "http://schemas.microsoft.com/cdo/configuration/smtpauthenticate" ) = cdoAnonymous How is this done in .net 2.0 I have converted all my code over, except this line which is an essential property of the smtp client to send through our smtp server. Thanks. Current code that works ...Show All

• Visual Studio Express Editions HTML and VB

  In my application i want to have a search bar powered by google. I would like the textbox to correspond to the textbox at www.google.com and the "search" button to correspond to the search button on google, and for the results to be displayed in my Webbrowser. Is that possible ANY information would help   Thx Dim u As New Uri( "http://www.google.de/search q=" + Uri.EscapeDataString(TextBox1 ...Show All

• Game Technologies: DirectX, XNA, XACT, etc. Creating custom data structures for HID devices via DirectInput

  Hi all, I'm working on accessing generic HID devices on Win32 via DirectInput.  It's generally going well, but I've hit a snag. The devices I want to send and receive data to are non-standard devices - that is, they are not keyboards, mice or joysticks.  So, I think I need to use SetDataFormat with a custom DIDATAFORMAT structure to define a custom structure for these non-standard devices.  I'd expect to itera ...Show All

• Visual C++ using namespace question

  Hi, I want to connect programatically to an Access database and extract data.  A little research has led me to the System.Data.OleDb namespace.  Here's my problem.  If I type "using namespace System.Data.OleDb", the compiler doesn't recognize it as a valid namespace.  If I type "using namespace System::Data::OleDb", I get these errors: .\RockitZip.cpp(18) : error C3083: 'Data': the symbol to the left of a '::' ...Show All