Raks's Q&A profile

• Visual Basic want information about DOS call for porting in visual basic

  hi.           I am porting QBasic application in to visual basic. i want information about dos call made through basic code like WINSEL,BELL etc.          Mainly i have problem in DOS call like SRVRLOGIN() and NETPARM(). can any one give me information about these call or Website link if available. please help to resolve this problem. thanks.   Cheers, Ganesh. hello,         That's True. No one search engine gives information about these call which are still exist in windows system. I have ...Show All

• Windows Forms Right-To-Left /Arabic Menu Bug!!!!

  I am writting a MDI application which has a menu bar. I set the Righttoleft property of Mdi form to "RighToLeft" . But when I run the application the position of all the menu items in menu bar (top level items) change!!!!. and after moving mouse cursor on them they will refreshed and be correct. Please Help me....!!!!!!!! This is ...Show All

• Visual Studio 2008 (Pre-release) Differences in syntax support between LINQ and DLINQ

  With standard LINQ: Given: Func<Customer, bool > IsFromLondon = c => c.City == "London"; Customer[] customers = GetCustomers();   We can get customers from London either by calling: var fromLondon = customers.Where(IsFromLondon);   or the simple syntax: var fromLondon =   from c in customers   where IsFromLondon(c)   However with DLINQ: Given: Expression<Func<Customer, bool >> IsFromLondon = c => c.City == "London"; Table<Customer> customers = GetCustomers();   We can get customers from London by calling: var fromLondon = customers.Where(IsFromLondon); ...Show All

• Visual Basic Help - Data Source Configuration Wizard OLEDB ODBC CSV text files

  Hi All, I am running Visual Studio 2005 Beta 2, I was trying to create a dataset where the datasource is a CSV File. When I run Data Source Configuration Wizard Using OLEDB and ODBC , the dataset is blank. "Error Text: An error occurred while retrieving the information from the database. Operation is not supported for this type of object." Does any one know whether this is a bug or incomplete function or not supported In Server Explorer, I can see the CSV file and column in the file. ------------------------------ Data Source     ACCESS.C:\\Sample        Table      ...Show All

• SQL Server Why no aggregation?

  If I put this into one of my table footer field expressions, it brings back the top 1 result of that column: =ReportItems( "ProjFee_AZ" ).Value However, if I put this into the footer expression for the same field later on, it errors out: =SUM(ReportItems( "ProjFee_AZ" ).Value) ERROR: [rsAggregateReportItemInBody] The Value expression for the textbox 'ProjFee_AZ_gt' uses an aggregate function on a report item. Aggregate functions can be used only on report items contained in page headers and footers. Build complete -- 1 errors, 0 warnings   Note: The expression behind the ProjFee_AZ  group field a ...Show All

• .NET Development DataAdapter/CmdBuilder problems

  I have a simple MDB with one table. The first column is the primary key (number.) I'm having a heck of a time updating. Using the CommandBuilder, I get: myDataAdapter.InsertCommand.CommandText INSERT INTO NewTable001 (ID, Name, DataType, Value, Comments) VALUES ( ,  , , , ) but the OleDbException error is "Syntax error in INSERT INTO statement." Here's the code  to update the data (bound to DataGridView): m_Conn = New OleDbConnection(sConnect) m_Adapter = New OleDbDataAdapter(sQuery, m_Conn) m_CB = New OleDbCommandBuilder(m_Adapter) m_Conn.Open() m_Adapter.Update(dt) m_Adapter.Dispose() If sQuery is "SELECT * FR ...Show All

• Visual C++ circular reference in parent/child classes

  I have been trying to understand some code that another guy wrote, and though his code compiles and runs, it seems like it should never have compiled. He has 2 classes. One class is basically the parent, and it includes a pointer to the child it creates. As the child is being created, the parent passes the constructor a "this" pointer, so the child can later access variables in the parent. When I try to duplicate this logic, with a parent class called alpha and a child class called bravo, my compiler (Visual C++.net) complains thusly: ------ Build started: Project: main, Configuration: Debug Win32 - Compiling.. ...Show All

• Visual C# To get files in folder

  Hi, I want to display all files as well as sub folder in a root folder.This sub folder can have more files as well as sub sub folders. By this c# how can i get this hierarchy Thanks, Hitesh Here's a quick solution. This function will search the specified "root" folder for all the files in there, including all the files of its sub-directories. This function may take some time to complete if you specified a folder that contains a lot of directory (example: C:\):    private string [] GetAllFiles( string root )   {    ArrayList files = new ArrayList();    fi ...Show All

• Windows Forms Copying 1 APP to Another

  Good Afternoon, I have an data entry form that is bound to a db. I have the 4 requisite controls on the form - dataset, bindingsource, tableadapter and bindingnavigator. I want to create the same application but I want to change the db that the form is bound to. The form has many fields (displayed thru textboxes) that are bound to the db. I want to copy app 1 db1 to app2 db2 , db1 & db2 are different. Remaining functionality is the same. Would I just create another table adapter, dataset and then drop this on my form I want to keep my original dataentry form and just change the databinding properties of the textboxes. Has anyone e ...Show All

• Smart Device Development power supply

  power supply is damage by a lightning strike, how can i get a replacement Please ask in hardware related forums or call your manufacturer. Closing as off topic. ...Show All

• Windows Forms Date Time Picker

  Hi, Anyone know how to format the Date Time Picker in C# to shows MONTHS only Hi, Sorry, please allow me to ask more, can you guide me more details on how to traverse the list view items and create the loop Thanks. ...Show All

• Visual C# Casting to nullable generics

  Hi. I have this method: public static TVal DoIT<TVal>( object value) { return (TVal) Convert .ChangeType(value, typeof (TVal)); } But it fails in case of DoIt< DateTime >( DateTime .Now) . (Invalid cast from 'System.DateTime' to 'System.Nullable`1[[System.DateTime, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]'.) How can I make it working I was trying to catch that case myself (happy with typeof (TVal).IsNullable ), but I'm not able to create required nullable type because no constructor I found takes a System. Type (which I can get using Nullable .GetUnderlyingType ...Show All

• Visual Basic Database Design advice

  Hi, I am trying to design a database for an IT Asset Tracking Management system and so far have added these example tables. I just want to know whether the design is ok or needs to be improved as I am trying to break my tables down as much as possible. The aim is not to store too many ID values in the main tables. Make table MakeID (int), Make (varchar) (This table will store values such as HP,Dell,Fujitsu,IBM etc) PCModel Table PCModelID (int), MakeID (int), PCModelTypeID (int),PCModel (varchar) (This table will store the models of the PC) PrinterMake Table PrinterMakeID (int),PrinterMake (varchar) ...Show All

• Visual C++ Using UNICODE

  HI Everyone, I'm new to C and I'm trying to use the UNICODE function so I can send UNICODE data to a device attached to COM4 instead of ASCII. I've defined UNICODE and_UNICODE and included tchar.h and I've also set the entry point as wWinMainCRTStartup. When I compile my code I get the error; Looks like your subsystem is set incorrectly. Are you trying to do a console app or a windows app If you meant to do a console app, change your subsystem to /subsystem:console. Alde wrote: HI Everyone, I'm new to C and I'm trying to use the UNICODE function so I can send UNICODE data to a device attached to COM4 instead of ...Show All

• Visual Studio Express Editions "An exception occurred during a Ping request." - This error message whenever I try to ping a site that is not available.

  I am simply trying to ping a website address to see if the website is available or not. Whenever I ping a site that doesn't respond it gives me that error message in the title of this message and throws a program exception. The simple code I am using is below. Dim siteAvailable As Boolean siteAvailable = My .Computer.Network.Ping( "http://www.somesitetotest.com" ) MsgBox(siteAvailable.ToString)   Maybe I am completely overlooking something Whenever the site is available and does respond it returns "True" as it should. But whenever it isn't available it throws a exception instead of just simply returning "False" as ...Show All