i am going to create one system which is related to test skill and it is in VB.Net and access database it has a question and four answer. both are coming from database,my problem is how do i change answer sequence everytime.whenever user tried for the test, answer sequence should be different.
View 14 RepliesDim fault As Double
Dim ng As Integer
Dim input As Integer
[code]....
Halo, may i ask how can i save my answer fault into database after i done division. I am taking the data from textbox(input data) and done the back coding division.
how to Check Exist Database in SQL And Message box Show Answer?
View 4 Replieshow do i retrieve password in database using secret answer and email address and put the answer on label1.text? this is my code Private Sub btnRet_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRet.Click
Dim con As New OleDb.OleDbConnection
Dim dbprovider As String
Dim dbsource As String
Dim ds As New DataSet
Dim da As OleDb.OleDbDataAdapter
Dim sql As String
[Code]...
I'm started my project and here is my code.
con.Close()
con.Open()
com.CommandText = "SELECT * from math.questions where number ORDER by rand() limit 1"
[code].....
how do i retrieve password in database using secret answer and email address and put the answer on label1.text? [Code]
View 2 RepliesI am trying to allow the user to rotate a jpeg and I know that you can do it pixel by pixel but WIA 2.0 is supposed to have that functionality built into it... When I try to set the filter, exactly like they do in the example.
[Code]...
I have two methods in a class for placing and rotating an array of objects(Pieces) on a Board.pieces have a bounding rectangle and a property called center that is the center point of the rectangle(piece).what i want is to rotate all the pieces in clockwise or counterclockwise direction ,depending on the mouse direction,when the mousebutton is down on any of the pieces other than the center piece and the mouse moves.can anyone modify my code below to achieve this or post some new code that does this. using the rotatepiece() method below in a timerevent with a buttondown event to start the timerrotates all the pieces in clockwise or counterclockwise direction.
Shared PosArray(18) As PointF
Shared Increment As Double
'place pieces in rows [order 3-4-5-4-3]
[code]....
So far:
PictureBox1.Image.RotateFlip(RotateFlipType.Rotate90FlipNone)
but this only turns at 90, 180, and 270 degree angles, also allowing flipping, but isn't exactly what I am after. I am trying to make the picture spin randomly at a variety of angles, but even if I can only get 45 degrees is better than just having 90 degree ones.
However I have only been able to find the above example in my searches.
I am trying to solve the issue that I posted about in the game programming forum about the animated dice. It seems that this is a very difficult thing to achieve, so I am going at this in an obscure way. My idea behind this is to have a timer set the images in a picture box according to random counters (which I have working). Then I plan on making the image rotate along with the timer (which is where I am at now). Then I plan on having the picture box move across the screen along with the timer (bouncing off the sides)...I think that this might be a bit better when trying to achieve an "authentic rolling dice" without actually having to do everything in 3d.
I'd like to rotate only one of the shapes in an animation, but the rotatetransform method applies this rotation to the whole view. I have several shapes which I want to remain stationary, and just one that should be rotated. I've been trying to use containers but so far this hasn't helped. This is visual basic on XP, using .net gdi+, system.drawing. I'm using translatetransform to establish a rotation center.
Private Sub ellipse()
myBuffer.Graphics.Clear(Color.White)
myBuffer.Graphics.TranslateTransform(200, 400)
If plus_clicked Then
[code]....
Can we display pictures in a cubical box and make it rotating on screen using vb express 2008?
View 1 RepliesI had an assignment that I had done, which has been turned in, I was able to get it to graph, but it when it reaches the right side of the screen it drops off, when it is is adjusted using the velleman controls it jumps back up, hw would I fix this.
Here are the instructon for the assignment:
Write a program tat rads two analog inputs from a velleman board and plots the values on a rotating graph. The number of value plotted horizontally should be specified in a text box. Label the graphs vertical values in at least three places. Print the current voltage reading for each input in it's own lable. The graph should auto scale to fille the graph vertically and horizontally.
The two things that I couldn't get to work is the graph drops off the chart and I was unable to place the vertical values in three places.
Here is my code:
'Date: April 10, 2012
'Progammer: Cathy Hjelm
'Progam: wk8-1
[Code].....
I want to make a small logo in the upper corner of a Form rotate.
I've seen on some forums that they have small avatars dancing and such, so I imagine it would be posible to make a tiny image rotate by it self up in the corner in a Form.
Does anyone know how to do this? Link to tutorial, codesnippets etc..
Ps. The goal is to make it smooth. Not turn 4 x 90 degrees.
How to make a small image rotating
View 1 RepliesI'd like to be able to graphically represent a position in a 3D graph and be able to rotate the grid to match a certain perspective. I've looked for tutorials online, but they all mention how to import or create common file types. I don't want or need to do this. I just need to know where to begin. I have the DirectX SDK, but I'm not sure where to start with it and need some direction.
View 1 Repliesi have a game in which i move my character (the picturebox) using the keys W, S, A, D....how do i rotate the image inside the picturebox to where it always follows the cursor?
View 1 RepliesI have a panel in my form and 5 buttons. All the buttons are docked to the top. Also in the panel I have a treeview ctl that is set to fill. What I am trying to accomplish is when you push one of the buttons the remainder move to the bottom and the treeview ctl fills between the buttons.
View 2 RepliesI need to rotate a picture box with about 35 degrees. now I tried this
PictureBox1.CreateGraphics.ResetTransform()
PictureBox1.CreateGraphics.TranslateTransform(64.0F, 64.0F)
PictureBox1.CreateGraphics.RotateTransform(35)
PictureBox1.CreateGraphics.DrawImage(sword, (-sword.Width 2), -sword.Height 2)
PictureBox1.Refresh()
But it doesn't seem to work Does someone know how to do this
i use this process to rotate a rect of 4 borders as corners in wpf:
'find the center
Dim center As New Point(((topRight.Margin.Left - topLeft.Margin.Left) / 2) + topLeft.Margin.Left,
((topLeft.Margin.Top - bottomLeft.Margin.Top) / 2) + bottomLeft.Margin.Top)
[code].....
but i get very messy results?
edit1: i changed the getRotatedPoint function to doubles, and added a radian to degree conversion.
edit2: corrected radian conversion function.
edit3: corrected the center coords, but still some offsetting happens.
First I am using 'Microsoft Visual Studio 2010' and am making a 'windoms forms application'. I am wishing to implement a way of changing the text colour through out the whole application. I have managed to put on a customisable background using
Quote:
CODE:
I know I'll have to change the 'BackColor' bit but I don't know what to. Is there something that turns all text on the form one colour or do I have to do it label by label?
Also I am can't figure out how to rotate labels to display text at a 60 degree angle (to display along the edge of an equilateral triangle) And for the triangle I have drawn it using lines which move independently from each other, is there anyway to 'group' these lines together so they are fixed.
I would like to display a rotating logo animation in my application. I want it to be blend with the background.
View 9 RepliesCode:
PictureBox1.CreateGraphics.FillRectangle(Brushes.Yellow, 0, 0, 5, 10)
But rotated 30 degrees? Is this possible and i am not very good at math and all other
[code].....
In VB2005 GDI+, it's not too difficult to get zooming and panning working together, or rotating and panning. But I am finding it very difficult to get all three functions working in coordinatioin. The code below is the nearest I have reached so far. It's a working example on a standard Windows Form, but please supply your own image. The user can drag the image with the left mouse button, and toggle wheel zooming or rotating by tapping the space bar. Both zooming and rotating work. But the stationary centre of zooming or rotating (marked by a red cross in the example) remains relative to the image.
View 1 RepliesI am trying to make a random shift scheduling application for a rotating workforce that must satisfy the following basic requirements: 3 shifts (8 hours each) per day (Morning, Afternoon, Night), 2 workers per shift work a maximum of 7 consecutive days and rest a minimum 1 day. 9 Total workers separate in 5 supervisors and 4 operators, and 2 part time workers (1 supervisor and 1 operator) for covering the possible absences of 9 standard workers. Total days off are 8 days per month (normal sequence 2,2,4) and the vacation days are 22 per year. A basic rule is that the shift must cover from 2 supervisors, or 1 supervisor and 1 operator. 2 operators are forbidden.
View 4 RepliesI have to create an image that is to mimic a single clock rotating hand within a square area,and the user has to choose the width and speed of the rotation and the direction.i managed to create the square area with a hand inside,with this codes and variables,
(Dim Mygraphics As graphics = e.graphics
mygrqaphics.Draw Rectangle(pens.color x1,x2,y1,y2)
mygraphics draw line(pens.color,x1,x2,y1,y2),now i have to find codes and variables to rotate the hand or line within a square area.one point remaining constant the other moving.
I wrote my first program today and it works like I want it to Except when the Message box pops up there is a zero there untell you press the OK button then the answer displayes. How do I get rid of the zero or replace it with "Answer"?the program consist of 2 buttons, a labes, and a text box, when you enter a number in the text box then press button 1 the answer displayes in the label. If you press button 2 the answer displayes in a message box.I am new to programing and this is the first program i wrote without following a tutorial or book.[code]
View 14 RepliesI've googled like crazy and tried MSDN but I can't get a clear answer what to use ToString for.
View 11 RepliesIn the user input of a textbox I would like that the user can input a formula to make it easier for him. So instead of inputing 400 I would like the user to have the possibility to input as 8*50. Is there a command for vb2008 to calculate the answer of this formula inputed by a string ?
View 2 Replies[Code]....
As this Loops round, the answer for formula will eventually become the same as what was input, X. How can I get the Loop to stop when it has the same answer twice in a row? The counter will count how many times it has had to Loop before finding the repeated answer.
I'm new to the server and I'm making a quadratic calculator with my friend. I have my calculator coded, but whenever i click the calculate button the answer comes up as "NaN". Here is the code.
TextBox4.Text = (intVarB * (-1)) + (((intVarB ^ 2 - (4 * (intVarA * intVarC))) ^ 0.5) / (2 * intVarA))
The Variables "IntVarA", IntVarB, and IntVarC are defined as public variables in a code module.