Currently I'm working on a retro-pong game using graphics. The problem is, my code keeps drawing new ellipses every time, and doesn't discard the old ones.
Current
Private Sub timeEngine_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmeEngine.Tick
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I draw some graphics on a picture box. However, I want to change the width and height of the picture box so that the drawn graphics fit exactly in the picture box (during run time, where graphics may change). How can I do this, or how can I get the region of the drawn graphics so that I can change the width and the height of the picture box manually.
View 8 RepliesI'm creating a custom form that is composed of a inner stroke, outer stroke, and rounded rectangular background. When the form is initially drawn its drawn fine without errors but once i re size it, the old form is still drawn and the new form is drawn below it but once i minimize the form and restore it, it goes back to normal (only the new form is being drawn).
View 2 RepliesI have a program where I use a picture box (pAudiogram) to display a template. Then I use Graphics (myLine) to plot things on this picture box. Some example code is below:
Dim myBluePen As New Pen(Color.Blue) : myBluePen.Width = 2
Dim myRedPen As New Pen(Color.Red) : myRedPen.Width = 2
Dim myLine As Graphics = pAudiogram.CreateGraphics
[code].....
how do I draw over existing graphics drawn on the control. This is what I'm using to draw the objects:
'Private paintRect As Rectangle
Private Sub Panel2_MouseDown(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles Panel2.MouseDown
paintRect.Location = e.Location
End Sub
[code]....
I'm making a plotting program. The panel (vs picturebox) is necessary because the data doesn't all fit into one screen so scrollbars are needed. I'm using graphics to draw the background layer and buttons for the data points.
When I scroll, the background is redrawn incorrectly since the top left corner of the panel is no longer the top left data point. Ideally, I'd like to prevent the background layer from redrawing entirely (after the initial draw). Alternatively, how do I take in consideration the new position of the scrolled panel in drawing the shapes & lines in the background layer?
I have an application that has a list of point and I can choose a tool and draw one image to different locations then remove them if I wish, and when I finish editing those images, I can then pick another tool . The images are supposed to go away that were drawn by e.graphics but they only do when I click in the picturebox. How can I hide the images or delete them from graphics when I choose another imageHere's the paint event alone
vb
Private Sub MapGrid_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MapGrid.Paint
[code].....
I have this code for drawing a path.
Dim map As New Bitmap(l1.Size.Width, l1.Size.Height, l1.CreateGraphics)
Dim nextPoint As Point
Using g As Drawing.Graphics = Graphics.FromImage(map)
Dim dPath As New Drawing2D.GraphicsPath
For i As Integer = 0 To path.Count - 1
[Code] .....
l1 is a Label. When I call this it draws the path fine, but when I call it again it draws another path but doesn't get rid of the first path. Basically, I only want one path on the Label at a time.
I am working on a snake game for my portfolio and was wondering where the best place to put the logic for drawing the snake. Should the code reside within the snake object or within the form? Either would work, but I am wondering from a business objects/coding standard perspective where such code belongs.
View 2 Repliespart of my code is in below
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I would expect to see the path.Path include the new record, however, I also notice that tempnextgen also include the new record. Can anyone help me out on this issue? Why the tempnextgen got updated as well, how to prevent this unexpected operation?
Finding the right way to code my program. I want to have the Now.DayOfWeek updated every 60 sec, as it only update on startup. I have been trying many diffident solutions but just can seem to find one which works.
Public Sub New()
'Opbygning af menuen
mnuDisplayForm = New ToolStripMenuItem("Vis bnings tider")
[CODE]...
Whenever I change a user setting in app.config (via running the program) the change doesn't appear in the app.config file (it stays the same). When re-running the program, however, the change is reflected in the program's behaviour. How can this happen if app.config wasn't altered when the program was last run?
View 2 RepliesI made a program which uses sample.dll. The program communicates with this .dll and does various tasks. Now, lets say I developed a new dll (an update, pretty much). Can I just give my users a new copy of the .dll or do I have to re-reference it in my project and then compile my programs all over and then give them a new copy of the entire program?
View 5 RepliesI made an auto updater, it downloads the new version of my multi tool to the startuppath.I want it to replace with the old multi tool (which is still running).I asked some people, they don't know how to do it.So maybe you guys know how?
View 25 RepliesI got this form with 2 textboxes and 2 buttons, when clicking each button, the corresponding textbox should show 1, problem is none of these textboxes show anything
here's the code in form1
Imports System.Threading
Public Class Form1
Dim mc As New mycl
[Code]....
I have an issue with a data table that I have updated using the datatable.update command.The datatable is bound to the datagridview using dgv.datasource = datatable.I have used INSERT and UPDATE commands and the INSERT command writes the data back to the database ok. However my problem is that it the dgv is not updated with the primary key (ID field) from the database. So when I save a second time, instead of updating it just inserts the data again.
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I have run into a problem with saving to database when running the program I am making.
I have an mdf file called prices.mdf and have set the "copy to output directory" to copy if newer setting and set this for the ldf file build action is set to content.. should it be compile or a different setting??
I access this database thru a dataset called pricelist dataset and when the program runs and you go to forms to update the prices, each form has a datagrid with the toolbar and the save icon. Mostly I followed tutorials to help me put it together.
When you run the change price menu for each part of the database, they appear to save each time u re run the program. But once you close down vb2010 and reopen it a day or so later and rerun, the new prices are gone and the old prices are being used.
I thought changing the setting on the mdf file to copy if newer is the usual fix for this, but as I said I have already got it set to copy if newer.
I can't figure out how to track what the dataset is accessing to make sure it is going to that database, or if i have made some sort of other database that it is accessing instead as well as the mdf database.
when I look at the dataset and the column entries for each part of the prices database, as to whether i need to check the dataset itself, or the forms the datagrids are on with the toolbar save icon, or whether there is another place to check to see if it needs to be changed to something like change if newer.
Obviously the program is working and doing the changes, but not storing them in the right place, so I am losing the changes once i shut down my project and reopen it.
also I have looked at the file propertiesand made sure they all set to copy if newer PricelistDataSet.xsd, pricelistdataset.designer.vb, and also the pricelist dataset.vb, xcs and xss ones are all set to copy if newer when I look in the solution explorer.butsome of the build part is set to compile on some and none for others As I am not experienced with VB 2010 or databases I am not sure how to track it down
Update: Just looked under each of the forms the data grids are on. and see the copy to output directorys on these are set to do not copy for each of the designer.vb, vb and resx. I am bit hesitant to change these without getting some advice from more experienced people if the forms also need to be set up to copy if newer.
This is what is shown in the coding on one of the forms if u double click on the save icon in toolbar
Private Sub TimberpricesBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TimberpricesBindingNavigatorSaveItem.Click
[Code]....
It was coded by dragging the things from the dataset as a datagrid onto the form. It is not coding I worked out, in case more needs to be added to the coding
I am trying to do a game application similar to chess, where i need to move the game peaces(graphics) over another graphics which is the game board. using the mouse. How can I do multiple layers of graphics and control their movement(without using direct x, i know nothing about it)? Note: I have visual basic 2010 express, windows xp home
View 1 RepliesI'm reading a csv and load it to a DataGrid using this:[code]Each item on record is between two commas, I tried a lot of things to remove them but I failes, wich is the best method?
View 4 RepliesI'm using this code to remove controls from a panel.vb.net For Each c As Control In Me.pnlDevices.Controls Me.pnlDevices.Controls.Remove(c)Next
but somehow it doesn't remove all the controls at once, I have to run the code 3 times to remove them all(there is about 20 to 30 of them, mainly labels I don't know if it matters, but the controls where added dynamically at startup...
in my application there's Textbox1.text, Textbox2.text, Textbox3.text and Button1.
my code is:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox3.Text = Val(TextBox1.Text) / Val(TextBox2.Text)
End Sub
End Class
I have a textbox multiline and i want to remove each first element of the textbox.
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How i can remove the first element of each line of the textbox ?
Public Structure ReportOrderType
Public ReportName As String
Public ReportDate As Date
Public SaveFile As String
End Structure
[Code] ....
Basically, I have a list of reports. In one place they get ordered, and later on the program looks to see which ones have come back -- see if the .SaveFile exists on disk. If it exists, then that report gets processed, and then I want to remove that item from the list of reports-on-order. However, I get an error message back that by doing the .Remove(R), I've changed the list itself & things won't go well with the rest of the For Each loop, which makes some sense.
When I get to this routine, the list of ordered reports will be something from a couple of dozen or less, and some number of them (perhaps zero, perhaps all, probably a few) will exist & be processed & then should be removed from the list. How should I go about accomplishing this? This is my first time working with List(of t) as a Visual Basic tool; everything I've used in the past has been with arrays, and I can do this there.
I need to parse an alphanumeric string leaving the characters "0-9", ".", "/" and space & remove everything else. I use "[^0-9./ ]" as my regex string and it works well. But now I have a couple other conditions that I dont know how to handle with my regex string. I actually only want to keep the "." character if it falls between two digit characters (ie. 3.5), otherwise remove it. And also I need to replace any "-" characters with a space if it falls between two digit characters (ie. 2-1), otherwise remove it.
View 1 RepliesI'm making quite the complex program, and while I try to figure out some more advanced methods that work better for what I'm trying to do, I'd like to learn how to do this (which is a bit of a roundabout method to what I've been trying). I'm wondering, how can I programatically create and remove objects? For example, I have webbrowser1. I want to remove it and create another webbrowser that I will also name webbrowser1. (therefore, the instance of the original must be removed)
View 5 Replies[URL] There's a RemoveEntry() function to remove a file, but I can't seem to find a function to remove a directory... Does DotNetZip support directory removal? If not, what are some other libraries I could try?
View 1 RepliesI have the following
Public itemArray As New List(Of ItemArrayStructure)
Public Structure ItemArrayStructure
Dim DisplayText As String
Dim Checked As Boolean
End Structure
If I know the DisplayText of an item in this array, how can I remove it?
i want to remove all selecteditems i tried to use this loop but it didn't work
Dim a As String
For Each a In History_Textbox.SelectedItems
History_Textbox.Items.Remove(a)
Next
How do i do it because that just didn't do anything
I have a multiline textbox where I sometimes get the first and last line of data that is blank.
This is my code that populates the textbox:
txtOutput.Lines = lines.ToArray How can I remove these blank rows?
If I want to remove 2 characters, or a specific letter or character from a string in VB, how would I accomplish this?
A usual input would be
"63.0" in string format
and I want it to be
"63"