I've been using the following sub in my control that I'm creating to let me modify the pixels in a bitmap faster:
Protected Sub LockForMemory()
idata = ime.LockBits(New Rectangle(0, 0, ime.Width, ime.Height), ImageLockMode.WriteOnly, ime.PixelFormat)
ipoint = idata.Scan0[code]....
This doesn't seem to work right, however.
I've come up with the following and it's partly working.
Public serial1, serial2, serial3, serial4, serial5 As SerialPort
Public serialports() As Object = New Object() {serial1, serial2, serial3, serial4, serial5}
dComPort = "COM4"[code]....
The above code works fine! But im having trouble trying to now retreive whats stored in the array.In the above example, an entry will be stored in serialports(4), all other array elements will be blank.If I do this it works.
MsgBox(serialports(4).PortName) ' this retuns the value COM4
But I'd like to loop though all array elements and print out ALL the PortNames, The below code doesnt work, I get an error Object variable or With block variable not set.
For i = 0 To serialports.Length - 1
MsgBox(serialports(i).portname)
Next
I have an array of people stored in a custom structure array... how can i copy this array to a temp array so that the temp array has all the same values as the original custom array?
View 4 RepliesSo i have a DB with 3 tables. User Table with U_ID and U_Name, Class with C_ID, and C_Name and User_Class Table with U_ID and C_ID. Foreign keys are set.I want to display the classes associated with the selected user. The user is identified by their name. I know these are the two SQL statements I need to execute:SELECT U_ID FROM User WHERE U_Name = current_U_name
then
SELECT C_ID FROM User_Class WHERE U_ID = current_U_ID
then
[code].....
I have to design a project for my IT course at college using Visual Basic. The task is to create a program which allows the user to enter the height of a room plus the width of the walls as well as the paint which costs different prices. I have managed to get the program to work out the cost of painting each wall, but I cannot get another label to show the price for painting a full room, when the result is basically adding up the cost of painting all of the walls. how to add up multiple values displayed in labels?
View 6 RepliesThis may not be the place to ask this, if not, you can move this post to the SQL forum but I have an application that I'm building which pulls dates from a database. The start value is stored as payPeriodStart date and I add 7 days to get the end date. What I need to know is, is it possible to store those values and pass them to a Stored Procedure? Currently my stored procedures have "static" dates in them ie:
where dateadd (n, Timestamp, '12/31/1899') - ([LoggedIn]/1000)/60/1440+1 Between '10/3/2010' and '10/10/2010'
and I'd like those values to be
Between payPeriodStartDate and payPeriodEndDate.
I have an application that I'm building which pulls dates from a database. The start value is stored as payPeriodStart date and I add 7 days to get the end date. What I need to know is, is it possible to store those values and pass them to a Stored Procedure? Currently my stored procedures have "static" dates in them ie:
[Code]...
I am struggling with trying to pass values to a stored procedure, I am creating new records on my table by the values are not passing to the table.Here is my persistance class.
Public Function createDMRIssue(ByVal ItemNumber As String, ByVal IssueStatus As String, _
ByVal ProblemDescription As String, ByVal p_AuditResults As String, _
ByVal DMRDate As String, ByVal p_IssueCategory As String, _
ByVal p_DMRInitiator As String, ByVal p_QtyUnacceptable As Integer, _
ByVal p_ProductType As String, ByVal p_OrderNumberm_dmrissue As String)
Me.Connection()
[Code]...
How do i re-run the whole form again without losing the values stored as it run?
[Code]...
But they don't seem to work. Once the form reaches the end (after the user press enter), it just display a blank screen. But what i want is for the form to start all over again without losing the values. Is there a way to do that?
the stored procedure is within a transaction. I want to get the inserted values after calling the stored procedure. My problem is, I don't know if that is possible because the transaction is not yet commited.
View 1 Replieshow to store boolean values in ms access or sql server
View 1 RepliesI am creating a maths programs that draws graphs for the user. so far i have placed 22 values into an array and now i need to import them to excel, draw the graph and import the graph back into the program to display them.[code]...
View 4 RepliesI am using Visual Basic express edition 2008.I am trying to know if a value in a single dimensional array is repeated in the array. If yes, then multiply one of them by 100. For example:
MyArray (14) = 12, 15, 18, 15, 18, 11, 15, 18, 16, 14, 18, 8, 12, 17, 10
In the above example:
MyArray (1) = MyArray (3) = MyArray (6) = 15
MyArray (2) = MyArray (4) = MyArray (7) = MyArray (10) = 18
MyArray (0) = MyArray (12) = 12
[Code]...
I am working on a Tag system for a news page designed in ASP.NET. For the system I require a TagExists method to check for tags within the database. The stored procedure I have written is below.
ALTER PROCEDURE [dbo].[Tags_TagExists](
@Tag varchar(50))
AS
BEGIN
[code]....
I have tried switching the procedure to return 0 if the tag exists and 1 if it does not and it still returns 0 despite the exact same testing conditions. I have also returned the actual select query and it has complained of the Tag "news" (my test item) not being an int on execution showing the select itself is definitely properly formed.
On a ASP.net form, I need to add a textbox to update a date field in MS SQL server via stored procedure. I want to verify user input cant figure out the correct syntax to do so (please see below)
If d.Text <> "" Then
cmd.Parameters.Add("@date", SqlDbType.DateTime)
cmd.Parameters("@date").Value = Date.Parse(d.Text)
[Code].....
I have a form that I'm running a stored procedure in and I'd like to pass the results to a datagridview and then offer the user the ability to export those results to a flat text file.
View 1 RepliesI am trying to pass some declared variables to a stored procedure. Here is my
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles startpayrollButton.Click
Dim ssql As String = "select MAX(payrolldate) AS [payrolldate], " & _
[Code].....
i have 31 PAIRS of radio buttons Yes or No in a web form which will insert the value of radion buttons or text of radio buttons in a single table of 31 columns in SQL server. I grouped each pair of radio button (Y and N). How can I retrieve the selected radio button value of the group and insert it into MS sql server database table using one insert command in VB.Net?
View 2 RepliesI have an array of 10 x 10 as shown below. In addition to -1, it consists of numbers from 1 to 9.[code]...
View 6 Repliescast integer values to an array of enum values?
View 2 RepliesWhy is this not working for me? What is wrong with my code below? I am trying to read a stored proc and applying values to labels. Getting error that say "Incorrect syntax near CareerInner".........
Private Sub LoadData()
' Define data objects
Dim conn As SqlConnection
[Code]......
I have an application that I'm building which pulls dates from a database. The start value is stored as payPeriodStart date and I add 7 days to get the end date. What I need to know is, is it possible to store those values and pass them to a Stored Procedure? Currently my stored procedures have "static" dates in them ie[code]...
View 14 RepliesI would like to pass to values to a stored procedure. I am using a sqlreader to populate a excel sheet. I need the user to be able to select a range, rather that the whole table.
Dim strSQL As String = "sp_im_select_customerdtl"
Dim data As String = ""
sqlCon.Open()
[Code].....
Using SQL Server 2005 and VB.Net..[code]When I try to run the above query it was showing error.How to execute a stored procedure with conditions?
View 4 Repliesencrypt the string values stored in the code.The problem is that when the code is compiled and the .exe file is generated, anybody can edit the .exe file with an text editor or another program and see the values.This is very important for me, because i have some password stored in string variables?
View 1 RepliesPer this UserControl that can be added to a blank form, I would like to use the HorizUnits array below to map custom grid x coordinate from a mouse x position.For a given input value 13, what syntax would I use to obtain a value of 2 where 13 lies between Value 10 and 16 for which 2 (Name) would be the custom grid's displayed coordinate position?
View 1 RepliesI have a program that reads in lottery results from the past 6 months (from the national lottery site) from a text file
31-Mar-2010,29,18,38,44,14,43,13,3,GUINEVERE
27-Mar-2010,32,38,11,15,42,6,24,2,GUINEVERE
24-Mar-2010,3,49,28,5,23,42,41,4,GUINEVERE
and stores it in an array (n-1,6) where n is the number of lottery lines, so the array looks like
0 1 2 3 4 5 6
0 29 18 38 44 14 43 13
1 32 38 11 15 42 6 24
then, in a 1D array I store the player's numbers, simply as
0 23
1 16
2 19
[code]....
I want it to take each number from the player's number array individually and compare them to each row individually in the lotto results array i.e. the first six cells in each row in the results array will be compared with each user number to find any matches, if a value matches then a count is incremented. if the count is greater than 2 but i'm getting no where with it :( i've been trying to use the For To loops but keep getting index out of range, or else nothing is happening at all!
I am writing a pizza order program for class and have gotten everything put together, even got my array setup and displaying but when i go to calculate it will not calculate the values coming from the array in any of the calculations.
[highlight="vb"]Option Strict On Public Class Form1 'declare structure and module-level variables Structure PizzaSale Dim SizaString As String Dim StyleString As Stri]
A c# class's single dimension byte array contains socket level instrument sensor data as per:
public static byte[] frameData
As per this illustration, I'm trying to increase the size of an existing array from 111 to 114 to be consistent with existing code. I need topreserve the existing values and add 3 new items to the end of the existing array of booleans,
View 3 Replies