Clear Lines Which Previosly Drawn?
Jun 4, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
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Clear Lines Drawn On A Panel?
May 20, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
View 1 RepliesForms :: Clear Lines Drawn On A Panel?
May 20, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
View 3 RepliesVS 2008 Clear A Rectangle Drawn?
Aug 25, 2009So; I've drawn this rectangle vb Dim zr As New Rectangle(100, 100, 100, 100)e.Graphics.DrawRectangle(Pens.Red, zr)
View 4 RepliesAdding Drawn Lines To ComboBox?
Mar 7, 2012When I populate a combobox with items that have a line and text drawn in the DrawItem event, only the line image for the first item in the list appears in the drop down portion of the combobox. The other items (index>0) shown in the drop down portion of the combobox do not contain an image of the line, yet each item in the list does contain the designated text. The correct line image does appear when the user selects an item and the drop down portion of the combobox is not visible. How can I get the line image to appear in every item of the combobox when the drop down list is activated?
Public Class Form1
Friend WithEvents ComboBox1 As ComboBox
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.ComboBox1 = New ComboBox
With Me.ComboBox1
[Code] .....
Drawn Lines Do Not Remain On Form
Apr 15, 2010I am drawing lines on a picturebox - not in the paint event. I realise that if I resize the PictureBox the lines won't be redrawn - but the PictureBox is fixed. If I display a MessageBox at the end of my draws the lines do not remain on the screen. This was OK with VB 6.0. Hoe can I stop them being erased?
View 2 RepliesVS 2008 Saving Lines Drawn In Pictureboxes
Aug 21, 2010On my form, I have a picture box that starts off blank, but draws lines according to mouse click events.
I am now trying to test whether there is colour in individual pixels, yet I am yet to find solid code.
My initial code was along the lines of
Dim bitm as bitmap
bitm = PictureBox1.Image
This would come up with nothing, as there wasn't any image assigned to the picture box.
I was wondering how I could save the lines drawn and use that as a bitmap to test pixel colour.
How To Clear Drawn Text Before Drawing A New Text
Dec 1, 2010I'm looking to see if a little more control is possible though. cpustring = string and fontstring = font, both defined earlier in the program.I'm not sure how to clear the drawn text before drawing a new text. I tried with g.clear(color.transparent), but that creates an ugly flickering background for the picturebox (the picturebox is already set to transparent background).I'd also like to be able to fit the text in the picturebox area, max width/height as defined by picturebox, not by fontsize. Font can stretch either way as long as it fills in the picturebox.
View 6 RepliesCreate A CLEAR BUTTON Loop To Clear All Textboxes?
Dec 13, 2011this is currently my code to clear my 5 textboxes
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
TextBox1.Clear()
TextBox2.Clear()
TextBox3.Clear()
TextBox4.Clear()
TextBox5.Clear()
End Sub
Clear Dataset But Get Error Sometimes If It Is Empty When Try To Clear It?
May 17, 2009I have a timer that runs every time by itself, and for the code the runs in it I would like to have it clear the dataset before it does anything, the timer runs every 10 seconds, so I tried to do dataset.clear but it would crash if the dataset had no values
View 4 RepliesClear Hyperterminal - When Press "ctrl+L" Is To Clear Terminal Screen How To Write The Code?
Jun 23, 2011in hyper teriminal when i press "ctrl+L" is to clear terminal screen how to write the code in vb.net? Hyperterminal is connecting to serial comport.when i try this it work and return line on debug
serialport.writeline ("at+cmgl=1")
i try this but not work and it still show some lines on debug
serialport.writeline (vbcrtl +"L")
serialport.WriteLine("vbCrLf + l")
.net - Clear() Or Txtbox.Text = "" Textbox Clear Methods
Sep 20, 2010way to clear textboxes in VB.Net and what is the difference between the two methods? I have also seen people be critical of folk using clear objects on their forms and i can see why but in this case, i am only learning.
txtbox1.Clear()
or
txtbox1.Text = ""
Clear All The Data In Data Grid View Without Clear The Binding Source?
Jul 15, 2009wan to ask about anyone know the code about how to clear all the data inside the data grid view without clear the binding source...
View 1 Replies2008 Count Lines In Textbox With Multiple Lines Using Label To Display The Numbers?
Sep 3, 2009how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.
example:
1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite
Obviously this is 5 lines and that's what I need to count.
Get A Bunch Of Lines From A Text File (they Will Be Filenames Eventually) Which Are Split By New Lines And Puts Each One Into An Array?
Jun 22, 2010I have written a simple script to get a bunch of lines from a text file (they will be filenames eventually) which are split by new lines and puts each one into an array..
Dim ary() As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.FileExists("C:MenuFiles.txt") Then
[code]....
The only thing I can do for now is either use the substring function to remove the first character from all array values after 0 but I don't like that because it's messy and what if the split "works" as I want it to one one of the lines and knocks of the first character when I don't want it to.
Why Did Clear() Clear Both DataTables
Feb 28, 2011In my winform program (in vb.net) I wrote:
Dim dt As New DataTable
'Get data from DB into dt
'...
[Code].....
But when I run the program, Clear() cleared both dt and dttemp! Why? Aren't dt and dttemp supposed to be two distinct instances of DataTable?
(I finally found a solution - dttemp = dt.Copy() instead of dttemp = dt. But I still can't see why Copy() was necessary in this case.
Getting Bound Of Drawn Graphics?
Jun 1, 2012I 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 RepliesHow Is A Graph Drawn In VB 2005
Jan 9, 2010In a Windows Form, how are X,Y points of data drawn on the form to make a graph?
software developer
VS 2010 - Drawn Paths Will Not Go Away
May 12, 2010I 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.
StreamWriter Clear (clear The File "make The File Blank Again") And Move
Mar 26, 2010I am using the StreamWriter to create a log file for my application. However I do not see a method on how to clear the file (make the file blank again). Also before I clear the file I want to rename it so that I can have multiple log files, a new one produced everytime the application runs.
[Code]...
Coordinates Stored As A List And Need Them To Be Drawn?
Apr 29, 2011the problem is as follows: I have a text file with coordinates x and y
[Code]...
Display Tooltip Over A Drawn Ellipse?
Mar 17, 2010I dont no if this if possible but im trying to set a tooltip on a ellipse that is drawn at run time on the system. I am able to attach the tooltip to a texbox etc but cannot attach it to the graphic.
View 4 RepliesDynamically Change Shape To Be Drawn?
Mar 12, 2009Is there a way to dynamically change the shape to be drawn.
View 3 RepliesFlowchart Drawn At The End Of Your Answer Document?
Apr 12, 2010I am just starting to learn this programming. But of this is very challenging. The question is:Explain what the code in the GuessLetter procedure you added does.Add your answer as a flowchart drawn at the end of your answer document. You can use the Word Draw tools to draw the flowchart. HINT: Your flowchart should have four decision points. Here is the code for Hang Man.
[Code]...
Make Drawn Items Not Selectable?
Apr 19, 2009I have a radar which works by drawing monsters onto a paint panel, which can be made transparent so that only the drawn items are shown on screen, but when you mouse over the drawn items they are selectable so it disturbs the game, is there any way to set the drawn items so that they cannot be selected? basically ignored by the mouse cursor.
View 17 RepliesOld Graphics Still Drawn On Form Resize
May 21, 2010I'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 RepliesRestore The Background Behind A Drawn Rectangle?
Apr 14, 2012In my application I need to draw several filled rectangles on a panel with a tiled background image. Depending on user actions, certain - not all - rectangles must be removed afterwards, revealing the background image again. Drawing and filling the rectangles is not so difficult, but how can I remove them in such a way that the background gets restored correctly?
View 2 RepliesSave Drawn Images In A PictureBox?
Sep 8, 2009I created a form with a PictureBox. I created a drawing in the PictureBox. But I can't save the file to a specified folder without dialogue controls. Only through code.
View 1 RepliesSave PictureBox With Graphics Drawn On It?
Oct 7, 2009I 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].....
When Using Drawline Can Map Each Pixel When The Line Is Drawn
Nov 22, 2010I want to draw lines (paths) for AI to follow. I need to know the X,Y coordinates of each pixel in the line.Lines drawn straight vertical (0 or 180 Degs), diagonal (45 or 225 Degs), or horizontal (90 or 270 Degs) are easy to map.I need to know how to map straight lines that are not one of the those three. Like 1 degree to 44 degrees, 46 degrees to 89 degrees, and so on...
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