i have some problem for developing the code for addtion of 3x3 matrix class the code which i have develop is given below. but this class is not executed in vb.net code. dont know whats getting wrong in it as m nt getting the required result. in correcting the code as m new in vb.net.
I have a project where I want to have checked arithmetic by default, except for one performance sensitive spot. Unfortunately, VB.Net doesn't have an 'unchecked' block.Ideally the framework would have some sort of integer type with explicitly unchecked arithmetic, but I didn't find anything like that. I did find that expression trees have binary expressions for unchecked operations, but the delegate overhead cancels out the unchecked advantage (and then some).
Currently I'm converting the inputs to UInt64/Int64 before doing the arithmetic, then converting back (with a bitwise And to ensure in-range). It's about 50% slower than unchecked arithmetic (according to profiling).
Moving the arithmetic-sensitive part to a project with unchecked arithmetic might work, but it seems like overkill to give it an assembly all to itself.
Alright I have my assignment to the bottom, and my code so far in CODE mark up.I'm trying to get a value in a textbox assigned to a variable (Price) add to a variable (Subtotal), clear out the textbox and loop around. I looked for hours in my book and google and couldn't find m
Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
I have 5 textboxes that the user will input numeric's into (but not all the textboxes may be filled at one time) How can I get the sum of "however many" textboxes have values in them, without getting an error about the txtboxes that have no values in them?
I want to generate a matrix (7,4) with this output: (7lines and 4 columns) that has this structure(with this values)Column A1 and row B1 has 2 values (1 8 ), column A2 has 2 values (2 7 value in column A2) , column A3 has 3 6 value column A4 and row B1 has 4 5 value. And so on.How I can generate this matrix: [code] So my question is which condition to put to generate this matrix of this form.A cell A1,B1 contains two values (1 and 8 for example in cell B1).
The value of d3 is not coming to 301006308001004.5 but it is getting rounded off. Is there a way to fix this. When I use currency data type, the issue looks solved. However currency cannot hold a larger decimal number. the value of d2 can have more decimal value like 0.343324532553 .
I have a problem with the code I will be posting down below, when I use the logout button & then I proceed to re-join & the server gets taken down the client crashes/closes, debug mode shows errors in general as the debug session closes out but it doesn't go to any lines of code or anything for me to find where the problem is happening at.
Now I know this isn't a server issue for sure, no bugs show up in the servers coding program at all & it shouldn't take the servers help for a client to disconnect properly between my app being closed & them using the logout button. It only bugs when the server goes down & only after having used the logout button since you've opened the application..
A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll
Module Procedimientos Public Datos(200, 4) As String Public Sub Inicio()[code]....
It is a Class made with the Add Windows Forms Menu.I have another Form where I added from the ToolBox the DataGridView Item. Everything till now works like a charm, the problem comes when I try to load the matrix (previously posted) into the DataGrid. I search for the matrix via DataSource Button (from DataGrid's Properties) but I can't find it, it'll only show up the other forms. I don't know what I'm doing wrong.
So I'm developing a minesweeper game and i've assigned the mines, but I've got to generate the numbers around them. I've already developed the code, but it doesnt seem to be working.It's important to refer that I'm using a DataGridView.Here's how my code looks like now:
Declaring my variables:
Public line As Integer Public column As Integer Public numbandeiras As Integer
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
i am using TVS-MSP-250 Champion printer,i did a billing project all wrks and prints perfectly,but my client ask me to print tamil quatotion at the bottom of the page how can i print tamil characters in dot matrix,i used font such as amutham,saiindra,etc all are true type font i also try a method print#1, chrw(&HAB) it display tamil in msgbox, because i set window msgbox font as saiindra, if i print by using txtbox such kind of characters are print,no option to change font in printer properties,the default font in dot matrix printer is roman
How do i make a ListBox with the addition of each item, the item be removed after 4 seconds? Added time and number of items is unknown. Other parts of the job application should not be hampered. I know that thread should I use, but I do not know.
I have an ACE OleDb connection to an accdb file thatï¿½s working well but Iï¿½m mystified by something I recently discovered when using named parameters. Order of adding of parameters overrides the parameter names. I see in the MSDN that is states when in "Text" mode named parameters is not supported. My testing has proven this to be the case. The example below puts "Value 2 in Field1 and "Value 1" in Field2. In fact I could change @value2 to @blahblah and it works.
Dim command As New OleDb.OleDbCommand("INSERT INTO Results(Field1,Field2) Values(@value1,@value2)", con) command.Parameters.AddWithValue("@value2, "Value 2") command.Parameters.AddWithValue("@value1", "Value 1")
what is text mode and how do I change it and what other types are there? According to John McIlhinneyï¿½s earlier explanation things like date variables are added in a binary fashion including support for DBNull. So this is not "Text" so how am I sending binary data to a Db in Text mode? Iï¿½m just not getting why it supports names when it ignores them. Is it simply the case that there is no way to add parameters out of order in my case?If adding out of order is impossible should my command use some other syntax? I see other syntax that just uses question marks in the command dim for the Values section. EG "Values(?,?)".
Is there a way of adding parameters without names?In general Iï¿½d love to hear someone to explain this so I can understand the inner workings here a little better and have a little more confidence in what Iï¿½m doing here. I can fix my code to work but I feel like an idiot using parameter names that are ignored. I just know Iï¿½m doing something wrong even if it works.
I got a problem with my calculation .The problem is after addition and subtraction calculation I only get result or answer 0, .There are not a correct answer. I try to change the datatype of the variable to decimal and double but answer is still 0.
Here is my coding. Private Sub btnadditionprice_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnadditionprice.Click Dim sum6, sum9 As Decimal sum6 = Val(Me.ItemPriceTextBox.Text) + Val(Me.txtadditionprice.Text) [Code] ..... Answer which got is 0.000
I am trying to develop this application Using Visual Basic 2008. I hope I am posting my question in the correct forum. (Still confused about the difference between VB.net and Visual Basic) Anyways....I am trying to assign the data from my datagridview to a matrix. I donot know if this is possible in VB2008. The data in my datagridview is dynamic and I am trying to assign 2 matrices to my data.[code]...
Dim m As New System.Drawing.Drawing2D.Matrix Dim size = image.Size m.RotateAt(degreeAngle, New PointF(CSng(size.Width / 2), CSng(size.Height / 2))) Dim temp As New Bitmap(600, 600, Imaging.PixelFormat.Format32bppPArgb) Dim g As Graphics = Graphics.FromImage(temp) g.Transform = m g.DrawImage(image, 0, 0)
(1) Disposals removed for brevity.
(2) I test the code with a 200 x 200 rectangle.
(3) Size 600,600 it just an arbitrary large value that I know will fit the right and bottom sides of the rotated image for testing purposes.
(4) I know, with this code, the top and left edges will be clipped because I'm not transforming the orgin after the rotate.
The problem only occurs at certain angles:
(1) At 90, the right hand edge disappears completely. (2) At 180, the right and bottom edges are there, but very faded. (3) At 270, the bottom edge disappears completely.
Is this a known bug?If I manually rotate the corners an draw the image by specifying an output rectangle, I don't get the same problem - though it is slightly slower than using RotateAt.
Question: I have data that I retrieve from a database, which looks like this: Now I need to transform it to the below format, in order to be able to draw a piechart. In ReportingService, there is the Matrix control to achieve this, but what can I use to achieve the same in ordinary C#, in order to render it to a PieChart image ? Note that the number of buildings as well as the usage-types is variable and not known ahead of time.
I want to create a (3n*7) Matrix in python through Iteration, I did this in VB.Net and it worked but it gives me some challenge in Python as this a new language to me. n can be the number of Iterations to build up the matrix, i.e. ; if u iterated 3 times, the matrix will be a 9*7 matrix. Here is how I did it in VB.Net. :
I am writing a small aspx web application that takes in forum information after validation and then opens a database connection and populates the proper columns with data.note: The database is a .sdf file created in web matrix My issue is that even with: Import Namespace="System.Data.OleDb" on the page I am getting: Type 'OledbConnetion' is not defined. I am extremly new to VB, I am coming from java and honestly I do not have all year to read vb code and take classes and read books. I need to finish this app for a client so I am kind of rushed.
My objective is to select specific positions in a moving matrix of a fix range with VBA for Excel 2003. The fix range is about 5 or so columns wide and has a few thousand rows. I select a matrix of 5 to 7 rows and same number of columns. I choose a specific position number in this matrix, write that number in another sheet and move on the next matrix just below where I do the same, and this until the last line of the range.
I've tried to write a loop function but this seems to take a lot of execution time.