The VB’s MkDir function creates a directory in a specified path. If the directory already exists, MkDir raises error 75 (Path/file access error); yet, it raises the same error code
‘ Select the ListControl element with a given value’ Example: SelectItemFromValue(ListBox1, “hellovalue”)Sub SelectItemFromValue(ByVal lst As ListControl, ByVal value As String) lst.SelectedIndex = lst.Items.IndexOf(lst.Items.FindByValue(value))End Sub Related Posts Understanding Memory Availability and
Being an avid Access Programmer I have been frustrated with the limitation of VB DropDownLists to using only 1 field as the value. I found a way to simulate/work around
When you don’t need the full capabilities of an XmlDocument object, you can use an XmlTextReader, the SimpleElement class explained by Guang Yang, and a Stack to create the lightweight
Editor’s Note: This tutorial is also available in a version for Java developers. Get the Java version. ML is rapidly gaining popularity with application developers as a data storage and
he Enterprise Portal (EP) is SAP’s corporate portal application that runs primarily on its own J2EE-certified Web application server. Java iViews, the portal components (or portlets) in SAP, deliver business
sing memory-mapped files can get you tremendous performance gains, but memory-mapped files are very delicate: any change is immediately reflected in the filesystem. This article describes a checkpointing system that
s is often the case in title fights, it didn’t really get interesting until the last round. On an otherwise uninspiring Monday night, in the grand ballroom of a Redwood
ost Windows applications need to use graphics or images to let users work with the images directly, or to enhance the user experience. Most applications can accomplish this with static
ich client, (or in .NET terminology, “Windows Forms”) applications provide a great user experience in terms of functionality, usability, operating system and inter-application integration. Unfortunately, they have also suffered from
TurboVBLite is the freeware version of TurboVB. It provides eighteen add-ins that make VB development easier and faster. It helps sorting and writing procedures and properties, error handlers, variable declarations,
he Pool Manager described in the first part of this article series had a couple of problems. The process of acquiring a pooled object was not transparent to the client,
‘ Flip an image on one or both axes. The x and y’ parameters are the coordinates of the upper-left point’ Note: requires Imports System.Drawing.Imaging” Example:’ Dim gr As Graphics
‘ Skew an image by a given amount along one or both axes (the dx and dy ‘ parameters)’ The x and y parameters are the coordinates of the upper-left
‘ Rotate an image by a specified angle (in degrees)’ The x and y parameters are the coordinates of the upper-left point’ Note: requires Imports System.Drawing.Imaging” Example:’ Dim gr As
‘ This routine demonstrates how to create an Enhanced Metafile (EMF) from a ‘ bitmap image, contained in a PictureBox.’ You must use a PictureBox control, since the Image control
‘ Return the date of the Monday for a specified week..’ This function can be tweaked to return any weekday. I use it in Access to’ subdivide reports into weekly
AUTH_TYPE request.getAuthType()CONTENT_LENGTH request.getContentLength()CONTENT_TYPE request.getContentType()DOCUMENT_ROOT getServletContext().getRealPath()PATH_INFO request.getPathInfo()PATH_TRANSLATED request.getPathTranslated()QUERY_STRING request.getQueryString()REMOTE_ADDR request.getRemoteAddr()REMOTE_HOST request.getRemoteHost()REMOTE_USER request.getRemoteUser()REQUEST_METHOD request.getMethod()SCRIPT_NAME request.getServletPath()SERVER_NAME request.getServerName()SERVER_PORT request.getServerPort()SERVER_PROTOCOL request.getProtocol()SERVER_SOFTWARE getServletContext().getServerInfo() HTTP_XXX_YYY Variables of the form HTTP_HEADER_NAME can be accessed using the request.getHeader(Header-Name) Example:
Public Function GetHtmlString(rs)Dim StrHtmlDim FldLimiter,RowLimiterFldLimiter=””RowLimiter=””If Not rs.EOF ThenStrHtml=”” ‘Table Tag’Prefix for 1 col valueStrHtml=StrHtml & “”StrHtml=StrHtml & rs.GetString(2,-1,FldLimiter,RowLimiter)’Trim of the Last StrHtml=Left(StrHtml,Len(StrHtml)-Len(“”))’Close TableStrHtml=StrHtml & “”End IfEnd Function Usage: Response.Write(GetHtmlString(rs)) Related
IN tblTicker table we have following fields: [CompanyID] INT IDENTITY (1,1) [TickerSymbol] [char] (10) NULL [ClassOfShare] [char] (10) NULL We inserted some rows and deleted some from table tblTicker.Now At
This tip is useful when debugging and testing complex stored procedures that have a lot of business logic. It helps to find out exactly what is being returned from a
This technique allows you to delete the contents of a List at the same time you are storing pointers a list. This same approach can be used for maps or
The const keyword in C++ provides a type-safe way to replace some of those #define preprocessor statements that you’re used to writing from C.Whenever you have a value that you
This task is quite common task. However, explicit insertion of values can be unacceptable in many cases?like if you need to insert a lot of values. I’ve found that it’s
When you construct an object using new, you have no control over where it gets created in the heap. What if you want the object to be placed at a
For some programs, it is helpful to create a listener to keep track of all the events being dispatched by the UI. This can be very useful in debugging programs.
ew people know this, but when PHP as we know it today was being molded, back in the summer of 1997, there were no plans for it to have any
Indexes are critical to smooth data retrieval and manipulation in SQL Server. They are the way foreign keys maintain relationships among themselves and the way DB pros enforce order on
Java swing provides a Timer class to cause an action at a pre-defined rate. For instance, you could have a label that blinks at a pre-defined rate. The class has
To do this, you need the javax.mail package. It’s a part of J2EE and available from java.sun.com.Sending a simple e-mail is pretty easy: import java.util.Properties;import javax.mail.*;import javax.mail.internet.*;public class Mail {static