VS 2008 : Stray Graphics Path Image Generated When Label Is Set To Visible = False?
Oct 11, 2009
I have a graphics application that uses graphics paths. Code seen below. You can use keyboard characters to display information. When a label is set to visible = false after being turned on for a number of seconds a stray image is generated. The stray images are also sometimes generated when the label is first made visible.
' points p10b, p2b etc are defined elsewhere
Dim GrpPoints As PointF() = {p10b, p2b, p3b, p11b, p5b, p6b, p12b}
GrPath = New GraphicsPath ' 7 path points
GrPath.AddBeziers(GrpPoints)
[code]....
I tried stopping the code from running when the label is set to visible = false but the stray image is still generated but just later. If you want more information let me know.The white arrows points to the stray image that is created just after a label that displayed information was set to visible = false
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Dec 16, 2009
I have a couple of textboxes whose databinding's text is set and also readonly is true and visible is false. but when I try to read their values they are all null unless I turn their visibilty to true. The same method is also needed to add a new row to the table (when using bindingsource1.addnew()).
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Feb 21, 2011
I got a couple of issues with my windows application VB.Net. I seem to cannot set the form to be invisible before it shows up for a second, there is no option in the properties of a form and also if I set the form to visible = false before the form is loaded it doesn't work.
So this does not work:
Browser.Visible = False
Browser.Show()
and this does work but the form shows up for a second which I am still not very happy with
Browser.Show()
Browser.Visible = False
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Jan 1, 2010
I have a form which won't open properly under certain circumstances if a particular Button is set to visible = false. Under the same circumstances if the Button is set to visiblbe = true the form does open properly or if the line of code at a certain place where it is set to either visible = true or visible = false is commented out or not there then the form opens properly. If any one of the 5 phases on my form are turned on then the problem doesn't ever occur but if none of the phases are on then the problem does occur. I just found a fix for the situation but I still am not clear about what exactly is going on.
[Code]...
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Jun 28, 2010
I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
[code]....
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Jun 5, 2009
I was unable to see the code generated by vb for form initialization automatic code generated by vb how can i see it?
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Aug 1, 2010
Button.performclick not work when it visible = false?
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Aug 3, 2010
I have a document management system which creates a report showing people who own which document. There are times where people have 0 documents and in that case I would like the repeater table for that person to not be visible. I have looked around for a while and have not had much luck, I have repeaters nested inside repeaters but if the first repeater is not visible the rest should follow.
[code]...
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Dec 21, 2011
I am trying to make a customer class that will simply make a bunch of controls (hotspots) Visible value = False.
For instance: WinStartSpot.visible = False
Thing is I have roughly 60 "spots" that need to be turned on and off as the user clicks through the program (its a very simple OS simulator) I tried to make a class using boolean return but that failed miserably. how to code a class like that?
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Jun 19, 2010
A DataGridView in my VB.NET 2008 program contains over 15,000 rows. I loop through the rows, totalling groups of rows and appending 'total rows' and one 'Final total row' to the DataGridView. That works fine. I want to initially hide all rows except for the total rows, giving the user the option to show all 'detail' rows. If i place the statement << dgvTitleCounts.Rows(intRow).Visible = False >> in the loop, execution time increases by three minutes and that is unacceptable.
I see two options: (1) find a faster way of making all rows invisible; and (2) place the total rows in a separate DataSet and bound DataGridView.
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Jun 1, 2009
i write Me.Visible = false a statement in the load event of the form my application has only one form and it call itself to hide. but when i run the program it doesn't hide itself i put the breakpoint on the statement to see if it even executes or not. it executes fine but no effect what it suppose to do i also have a notification icon added to a form to see it running in system tray.
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Sep 17, 2011
Can someone clarify if there is ever a need for the below?
When setting a textbox "Visible" property to False is there any reason why I should also set the "Enabled" property to false.
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Mar 13, 2011
i want to make a match game but i don't no how to make the timer to wait until two buttons are visible = false this is my exsample:
Button1.Visible = False
If PictureBox1.Tag = "major2nd1" And Button11.Visible = False Then
Timer1.Stop()
[Code].....
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Mar 25, 2012
I am stumped on this one. I have a panel (pnlKeyPad) that won't change the visible property when I try to set it to True. But when I try to set the Dock Property to DockStyle.Fill it succeeds. I have tried them in different orders, setting the parent property to the splitpanel and nothing seems to fix it. The panel is on a splitpanel that is visible. The panel is set to visible = false by default.
Any ideas of why this panel won't switch to visible when I specifically set it to visible?[code]...
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Mar 7, 2010
Dim lv As Integer
For lv = 1 To 33
picPileCard(lv.ToString).visible = False
Next
That's the code but its saying the name hasn't been declared.
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Aug 11, 2011
I know how to turn a control's visible property to true or false, the only thing I don't know is: If I have, for instance, 40 group boxes in which only one is visible, when I click on a button, the first group box visible = false and the second group box visible = true, and when I click on it again, the second group box visible = false and the third group box visible = true, and so on I don't want to write the codes for every controls, since it will be quite time consuming, I want to use fewer codes to achieve this objective,
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Mar 21, 2011
Having an issue with my data gridview. I've set the visible property of the ID column to false, and in the designer the column is hidden, yet it still shows up when i run it. Now if i set it to True it shows the column twice.
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Jan 6, 2011
how to retrieve the selected row cell value if it is visible property is false in gridview ?
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Sep 11, 2009
How to get only the visible image on Picturebox
the picture size is 320 x 240 captured from webcam and the picturebox is 240 x 240 the sizemode of picturebox is centered so the image is centered
when saving the image i got 320 x 240 image not 240 x 240
i want to save the image in 240 x 240 pixels how?
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Apr 13, 2012
Problem drawing dotted path lines, with even dots along the path line.I want to draw a path line that can be any shape (square, round, outline etc), and along this path line I want even dots to appear.
I also want to be able to resize the shape (as in the example attached)This is very easy to do using "DrawPath" and defining points for the path and using a pen defined as dots.The problem I have is I want the dots to be evenly placed along the path, on any shape or size I draw.In the example I have created, I create a square with 4 points and draw a dotted path.There are 2 buttons that allows me to resize the square (larger or smaller) this helps show the problem more clearly.
The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have. point me in the direction I need to go that allows me to draw the dots and give the impression that they are even all along the path, for all shapes and sizes.
In the pictures below if you change the size of the shape, one will have even looking dots, the other will not.
[Code]...
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Dec 29, 2011
Since I am making a program with quite a few users with different access levels, I usually turn all the toolstripmenuitems to visible false first, before turning some of them to visible true again as specific to the users.[code]...
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May 16, 2012
I am trying to code something that will check if a png image is visible on your screen. So lets say the image is a purple square with yellow circles in it (random example). It will keep checking to see if the same purple square with yellow circles is on your screen. What I'm trying to say is, instead of checking for one pixel color, check to see if the actual image is on there (maybe multiple pixels?)
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Sep 15, 2009
I'm making a class to basically print the screen. I'm going through each field and doing a drawstring, but things aren't lining up correctly. I tracked the problem down and don't know why it's happening.Take this line of code as an example:
Me.CreateGraphics.DrawString(Label1.Text, Label1.Font, Brushes.Black, Label1.Left, Label1.Top + 30)
This should draw the same text that is in label1 directly below label1 on the form. However, the drawn text is a different length than the label's text. Courier draws shorter, Sans Serif draws longer. It's doing the same thing going to a print document; it isn't matching how the label is being rendered.
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Mar 9, 2009
am a build engineer of some VB6 and MSVS VB applications. Inotice the directory path (the location of source code, e.g. c:uild_viewsv70r3 ....)information is stored in the generated dll, exe.This gives us a lot trouble, because I can't use another path to build the dlls, otherwise the binary compare tool will say the dlls are different, due to embeded path info is different.We have parallel development, and the code has to be built in different machines, different paths. Is there a way to resolve this
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Jun 24, 2011
I am trying to update an application that was developed a couple of months ago on VB of Visual Studio 2005. The "Build output path:" for the project is pointing to a folder in which I collected a few executables related to my activity, BinDir/. It is just next to the project's folder ProjName/ on my disk. Contrary to the past, when I build my project now, the .exe is created in the ProjName/obj/Debug folder, instead of being directed to the BinDir/Debug folder. In the IDE's Output tab (while building), the path of the generated executable appears correctly, but in reality it is located somewhere else. I tried again and now it seems like the executable is created in both places. The obj/ version is just redundant now.
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May 10, 2011
I have an existing vb.net application which uses a home grown database. The database has over 60,000 unique multi-field records in it.The user can search in each field using drill-down to find a record, and then can add that record to a separate database.(60,000 collectibles described in a master database. User can drill down by category, manufacturer, year produced, etc. to find a record and then add it to their own 'collection', 'wanted', 'have for sale', or 'spares' database for record keeping.)
Instead of having them drill down, I would like for them to be able to perform a search and have all of the results (any amount of matches from 1 to 60,000+) appear on a scrolling form with a checkbox next to each so that they can simply check any that they want and do a mass add to their list databases.
The part I cannot figure out is how to have vb.net (2008) create a variable length scrolling form with the results, and how to identify the checkboxes (generated by the system for search matches) to see which, if any, have been checked by the user.
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Sep 6, 2009
So, what I've got is a picturebox and a textbox, I got some code to put text into a picturebox so I could better understand how it works, but what I don't understand is how to put the text on top of the image that is in the picturebox, can anyone tell me how to do that? Here's the code
[Code]...
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Jun 1, 2010
I know that you can pass a Point array to the DrawImage method of the Graphics object to apply rotation, skewing and flipping, but I'm having trouble figuring out how to calculate the rotation. So far I've got:
Dim radius As Integer = Math.Sqrt((rect.Width / 2) ^ 2 + (rect.Height / 2) ^ 2)
Dim dX As Integer = RadToDeg(Math.Cos(DegToRad(angle))) * radius
Dim dY As Integer = RadToDeg(Math.Tan(DegToRad(angle))) * dX
Dim new_upper_left_corner As New Point(rect.X + (rect.Width 2) - dX, rect.Y + (rect.Height 2) - dY)
This is all just off the top of my head so far, I'm not sure if it's right. How do I calculate the other points on the rectangle, and is there a built-in VB.NET method that's much easier? (Apart from Graphics.RotateTransform, which is slow and also rotates around 0,0.)
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Dec 28, 2009
I tried to create a lineshape and make it visible when a timer ticks. Also tried to set everything that would matter when creating it(border colors and thickness etc)
But still, I got no results.
Code:
Dim line = New Microsoft.VisualBasic.PowerPacks.LineShape(CX, CY, ccx, ccy)
line.Parent = New Microsoft.VisualBasic.PowerPacks.ShapeContainer()
line.Enabled = True
[Code]....
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Apr 1, 2010
VB GridView control will not allow code in the vb code file to access a data column that has its visible property set to false. When it is set to true, the data column can be accessed with no problem. Any suggestions as to how to correct this? I have looked through the documentation, text books, and I have not found anything that gave me any clue as to what the problem could be. I thought that the property was just applied to the column, not that it would remove the column from being accessible.
[Code]...
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