I have created a table with the following fields
loan_id (PK)
loan_date
loan_return_date
loan_user (FK)
i have set the loan_id column to increment in steps of 1, but when i add a column in visual studio 2008 express it auto increments in minus steps -1 -2 -3. it increments in positive numbers?
I should start a project where several clients are included. There is a wcf web service controler that after a call from an specific client about a certain question it will retrive data from a server in London and then it will pass it back to the corresponding client in a different country e.g.
Clients and service are far away. the only way of transportation is through HTTP and intenet connection. Service should be able to callback also so i guess it will be dualHttpBinding.
I am currently debugging throught a lengthy piece of code that behaves differently if the batch loaded is created from one way or another. I have tried going through it and it seems each step is the same, so my question is, Is there a tool that will record each line of code that is hit while debugging? so instead of writing everything down and risk missing something i could just run the program use beyond compare to compare the results of both runs.
View 1 RepliesI have just downloaded VB Express 2008 with the intention of teaching myself how to use it from scratch. Previous programming experience limited to Lotus / Quattro Pro old style macros. Preference would be to work through a good hard copy DIY manual starting from the basics.
View 18 RepliesPossible Duplicate: Way to get unique filename if specified filename already exists (.NET)Have a look at the following code:
Dim counter As Integer = 0
While System.IO.File.Exists("C:DesktopSample.xls")
counter = counter + 1
[code].....
I'm trying to increase the value of a registry entry by 1
HKLMSoftwareMyApp
Key = Test
Value +1
[Code]....
What is the code for making steps in dgv? For example I have a button, every time that I press the button I want to make a step in dgv row
View 2 RepliesI am ready to deploy my vb.net project to my client computer.In my development computer I have crystal report 9, sql server express and .net frame work 3.5 installed.My Client computer hasn't got anything installed there.I am trying to making msi installer so that it will be easy for my client to install.I created the new solutions -> setup type project, added the project on it and build it.it successfully created the msi installer but it doesn't installs the sql server express and crystal report.How do i make the installer with crystal report and sql server and also with db
View 1 Repliesi am creating a ticket ordering system, there is 5 - 10 step for public user to choose what they want. These steps is dynamic, can some one advice me what is the best way to store data during steps, so that i can have a back button to return to previous step or retrieve data from step when compiler at last?
View 1 RepliesI am new to the MSDN forums and was wondering if you could kindly help me with a learning project.I have created a calculator with a simple addition function button and was wondering if the method I used to create it is efficient and how I may go about adding additional functions such as a minus function.Will my current code allow m to implement a minus, multiplication, or division function easily?How do I add a minus function and would adding a multiplication or division function? Also would can I use the same global variables to do this.[code]
View 1 Repliesi'm doing this for auto incrementing i called the last value in a row from a database for say, its p-0004 what i wanna do is take p-0004 and add 1 into it to make it p-0005 sorry for my stupidity, i tried using the trim method i used in vb 6 but there was an error like "read only property" something
View 10 Repliesi'm doing this for auto incrementingi called the last value in a row from a databasefor say, its p-0004what i wanna do is take p-0004 and add 1 into it to make it p-0005sorry for my stupidity, i know this is a noobie question but hey, i'm a noob
View 12 RepliesWhat is the += used in this code doing? Is that incrementing the loop?
Public Class Form1
02
Public Structure Family
[CODE]..........................
I am trying to make a simple port scanner to scan a rang of IP's so like 192.168.4.245 to 192.168.5.100. I am using Visual Basic.Net 2010 and am having trouble converting the IP from a String to a Long so that I can increment it and convert it back to a String. For some reason VB.Net 2010 doesn't include the winsock controller and therefore I am having problems finding a method that works similar to inet_addr() which makes conversion much easier. I found an example on one of the forms here
Code:
Private Sub Command1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Command1.Click
[code]....
When you access a subroutine by one or more other subroutines each time the variables are zeroed like 'n' below. How can I keep n saved so main can increment n each time.
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
I've been looking into this problem for a few days now and i can't find exactly the code that i want.I want to run a procedure using an incrementing matrix. If the Matrix that was used is correct then the correct matrix is shown.
the process is get first iteration process if incorrect repeat with next iteration correct end the issue is with the iterations and breaking out of them the matrix length, depth and iteration step can vary.
this is best shown in an example
length = 5
high = 3
low = 0
step 1
the iterations should look like
[Code]...
I would like to know what are the basic steps involved in setting up your application to able to read data from another application. Then take that data and modify it and send it back to the application. The data being read will have over 100 fields.... what is the most efficent way to store them? Put them in a class object?
View 1 RepliesI am relatively new to the world of programming and I was wondering if anybody could help me with a small project. I am trying to create two programs in VB.Net that each do one of the following individual actions:Find the average grade given several user-inputted scores on assignments. The program should also provide the following feedback according to the final score (i.e. A, B, C, D, F).Run two separate threads printing numbers (or words) in ascending and descending orders. (The numbers (or words) should be given by the user.)I have a basic understanding of VB.Net, but I am having trouble when it comes to creating even remotely complex programs. I have a few ideas on how I may go about these, such as using an arraylist for the first question that takes user input to find the grades, and then uses a series of If-Then-Else statements to display the letter grade, and possibly using steps simply with dual threading that would result in numerical order being printed in ascending order and descending order.
View 1 RepliesI have code that runs a deal.deal is a series of conditional steps [e.g., pay Fee1 from Account2 if (Variable5 > 500, Variable5 / 2, 0)].
These conditional steps are stored as strings in an access database.The conditional part can be extremely complex.
What is the best way to get my code to understand the conditional part?Do have to write some huge parser?
Is there a function that can do this for me(something similar to application.evaluation function in VBA)?Or do I need to approach this in an entirely different way?
list the steps to fill a combobox using a bindingsource. I dragged a bindingsource onto a form, created a datatable and datatableadapter(correct term?), added a query. I tried but I am missing something, my combobox displays System.Data.
View 5 RepliesI'm interested in a description of the step-by-step process for creating a custom control and making it available in the toolbox with vb2008. Just for an example, suppose one wanted to have an array of 9 buttons in a 3x3 pattern already labeled 1-9 as a control usable from the toolbox just as a single button or label etc. is, so that one could drag it from the toolbox to the form or a groupbox.
View 1 RepliesI want to write a human resource programme that can accept employee records and compute for their salaries and overtime and also print out the needed salary slips and reports.
View 1 RepliesI have 2 datetimepickers. I want one to display the current time and the other to display the time one hour ago: So far I can getb them both to display the current time:
Code:
Dim TimeInterval As Integer = 60
Private Sub SustomizeGraph_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
TimeTo_dtp.CustomFormat = "HH:00"
[code]....
No matter what I try, it never matches the sign. I even tried using the string as the pattern. This function should be able to take a string like 1 day -36mins + 2s -1s and parse it into a TimeSpan object. Any pointers?
[Code]...
I'm trying to learn LINQ to SQL. I've run into something I just don't get.Here's the LINQ program:[code]What I don't get is why there is a minus sign in the SQL before the math in the parentheses.I didn't specify that in the LINQ query.
View 6 RepliesI have some nested objects arranged like this:
Process
Persons
Workflows
Tasks
So you have one Process. Then multiple Persons can be added to and multiple WorkFlows can be added Process as well. Multiple Tasks can be added to each WorkFlow but I need a way to tie which Person is doing each task. I basically need a way that for each Person added to the Process it, in it's constructor, assigns a Person.ID property that can then be assigned into each Task's PersonID property...
Dim myProcess as New Process()
Dim myPerson as New Process.Person()
myProcess.AddPerson(myPerson)
[code]....
I would like to know the coding behind incrementing a progress bar using a timer.
View 4 Repliesi do have a table with 3 cols, 2 of those will visible for users to enter data, the last one is needed to get inserted as the next number of the previous number.
i use the following query for insert command ,
INSERT INTO [Headers]
(GrpId, GrpName, Number)
Select (Select Case when Max(GrpId) = Null then 1 else Max(GrpId)+ 1 end from [Headers]),
[Code]....
I am doing a school project (in programming) on security, and i am focussing on MD5 hashing, this is a used way to store passwords, usernames etc. since i can't really be reversed..Now since i know that MD5 hashes are always 32 byte long there must be a limited number of different "hashes" even though 32 chars with 16 combinations each is a LOT of combos..Now, i will try to make a program where you put in a 32 byte hash and then, by using the principle above with limited hash amounts, try to find ANY string that matches the hash.I have already got code on how to create the MD5 hash but i need to know how to make the strings...it should hash:chr(1)chr(2)...chr(255)thenchr(1) & chr(1)[code]
View 4 Replieswhy my counter is not working properly. It starts by counting all of the files in a directory and everything is set to 0 initially at the start of the program. For some reason when I debug it in certain places the counter increments correctly but with no debugging and once it reaches my DoSql function the counter is not set to the correct number of files anymore.. Below is my code, filesRemaining should be initially set to the number of files then decrement everytime.. when I debug this method itself it works fine but say I put a debug point elsewhere or don't debug at all the counter is not right.
'Declare global variables
Dim fileNumber As Integer = 1
Dim arrayPosition As Integer = 0
Dim changeType As Integer = 0
[code]....