I have an idea for a program that is, essentially, a series of calculators. These calculators are specific in their function and user data requirements but may be used independantly or perhaps sequentially. I am thinking along the lines of a "wizard" kind of interface but the user has the option to start, and/or end, at any point in the interface. Each calculator could be used independently, or may even recieve data from the calulcator that prefaces it. To complicate things even further, there may be more than one "wizard" pathway as there may be a variety of calculators in a variety of "threads" so to speak.
I'm thinking along the lines of a "component" style where each calculator, or "calculation thread", might be loaded in when the program starts. This way, I can build on the program over time or perhaps even control access to various components based on user previlages.
I am converting an old Vb6 solution to .net 2.0 in vs2010. I've been working in C# for about 3 years now and .net for 5. I don't recall having this problem in C#, but if I want initialize a readonly collection of DerivedControlFoo Is there a clean way to do it besides creating a sub to do it all off somewhere else? I'd love to be able to do it at the class level at the declaration for readability and simplicity.
Create a DLL component for database operation and use created component in another project. Required methods, events and properties
a. Connect b. Add c. Delete d. Save e. Record navigation (first, next, previous, last) f. Properties for all database fields g. Events for validation of database fields.
I've created a component whose name I'd like to be able to change while editing in the component tray. I've added a Designer action for a name property, but now I'm stuck.
Looking at the property grid, I can see that the name property is parenthesised, indicating that it's not a regular property.
I have recently taken a liking to programming, and have programmed a few games in C#,my friend has asked me to program an application for him to use in his shop. But I have no idea of what language is best suitable?
I avidly create games in VB.net. Being a hobby programmer I give my games away for free. Since I'm a hobbiest without formal training I do try and educate myself on proper programming principles and follow them when programming such as OOP. There are however some things I have obviously missed being self-taught that perhaps I would know if I were formally educated. Once such issue that has really been my bane is how different classes (from now on referred to as objects) 'know' about each other WITHOUT programming specific interaction.
Okay imagine this, you have a space game and the following objects
[CODE]...............
Now each one of these objects has a Health, X,Y and Z private members and properties that are all inherited from clsSpaceEntity for argument sake. Now one way of programming collision between them would be to code out the following logic in the main game loop
[CODE].........................
Now this might seam okay if your talking about the simple example above but some of my games have tens or even HUNDREDS of objects that interact in this basic way. Is there a way in OOP to do the following... for each thing that inherits from clsSpaceEntity check against every other object that inherits this type (except itself) and if they collide then reduce health next? This sort of ability for a type of objects/class or whatever to be 'aware' of another and how they are the same/different and interact would save me tonnes and tonnes and TONNES of coding.
I have a question about listbox. I want to display a series of * in one row. I know I have to use a loop, but I can not have the asterisk lined in one row.
I am using VB.net Express I need to produce a chart so am using MSchart object.I am using the following code to try to add data (2) to column 1 of a series
Me.Reject_Chart.Series(0).Points.AddXY(1, 2)
I do not get an error immediately but then before the form can be refreshed I get a stack overflow.how to I set this data?
I have a strong amount of pictures, which i would like to "protect" by adding watermark on them. Is there any way of adding watermark by using vb.net or C# ?
I am new to Visual 2010 and cannot seem to find any information about using Charts.I have an array, call it PressureOutputs(1000), which I wish to plot against a second array,e(1000).Can anyone please explain how I would add these two arrays to create a series on an x-y scatter graph (which is already present on the Windows Form Application), or point me to a source of information about how to do this?
If used the following code to create three line series and three point series consists of only one point each.[code]I need to check if X value and Y value of the two series matches.How can I find the X and Y value of a point within a line between two points like the ones in the picture?
I want to know how a row from a datagridview can be put into a series of textboxes say 1,2,3.I have connected the datagridview to my ms access db, with three fields. I have three text boxes too. i just want to know how to get the row from datagridview to be moved to the three textboxes accordingly.
i'm new to visual basic and i'm trying to expand my programming knowledge by creating random projects that include personal advantages. Right now I am trying to create a program that prescribes a series of commands necessary for the execution of game emulators with the touch of a couple buttons. ive created a gui of sorts ... i just don't know to make it function.
Trying to write a series of lines to a streamwriter in ASP.NET 3.5 VB.NET but I get an error 'Object reference not set to an instance of an object.' Here is the code
Dim sW As StreamWriter, iX As Integer = 0 For iX = 0 To 5 sW.WriteLine("SomeThing") 'Error occurs here Next
My goal is to write a write a series of strings in different lines. This seems so simple but I don't see how the reference isn't set; I'm declaring two lines above.
Does someone here experienced this error: ERROR [58005] [IBM] SQL0902C A system error (reason code = "") occurred. Subsequent SQL statements cannot be processed.sQLSTATE=58005..I'm Trying to make a program that will retrieve data from IBM i Series DB2.I established a code below that will check if the program can connect to the server but the error message above appeared.[code]The error will appear on CheckDB2.Open()
I am able to place a single series of chart data with my code but I cannot for the life of me figure out how to add a second series. I can add the Series ... I can Select the series but cannot with out errors figure out how to put data the the series' that I am creating ...
If I have posted this question in the wrong forum, please tell me how to find the correct forum.
I am working on an application that presents the average of a list of compass readings. The readings are wind directions. The problem occurs when the wind is oscillating around North. Some of the readings will be in the 300's, other readings can be 1, 2, 10, etc. degress. (A compass reads from 1 to 360 degress. 360 degrees is the same as 0 degrees.
You can't just average the numbers. For example, if you had two readings, 355 degrees and 5 degrees, just averaging the two results in an answer of 180 degrees. The correct answer is either 360 degrees or 000 degrees.
Most likely I can code data analysis logic to look for the problem, but I am hoping there is a simplier way. Does anybody know the answer?
I want to picture a line graph based on my array. I can create a graph line with 3 different series, but I don't get my exact chart as in excel. As can be seen from graph in the attachment. It has additional lines. I want just the 3 curved lines, but i don't know why it create other lines. Here is the code I used:
I am trying to write a program that writes information from texts boxes to a text file on the users hard drive. I would like to create a new text file if one already exists, for example if text1.text exists, it creates a new text file called text2.text, then if text2.text exists it creates text3.text and so on. Here is what I have so far:
[Code]...
I've tried fooling around with if statements to create a new file but it doesn't seem to be working. Additionally, How can I write to a new line in a text file. For example there are 4 text boxes and each string from each text box gets its own line.
The below photo shows that point 4 is connected to point 1 while point 5 is not connected to point 1 according to the flow direction. How can I programme this?
The below code shows the connections between nodes where the row of the matrix represents "FromPoint" and the column represent the "ToPoint".Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase .Load
