How can i hide a picturebox if it contains NOTHING
Dim a As Integer
Dim PicString(26) As Image
Dim PicBox() As PictureBox = {Box1, Box2, Box3, Box4, Box5, Box6, Box7, Box8, Box9, Box10, Box11, Box12, Box13, Box14, Box15, Box16, Box17, Box18, Box19, Box20, Box21, Box22, Box23, Box24, Box25, Box26}
[code]....
This does not work... The PicBox(c) = Nothing ... is not a valid command.
I have an application where I have different picture boxes which the user can drag and move.I also have different empty pictureboxes.
What I want to do:I want to let the user be able to drag a picturebox to one of the empty pictureboxes. Also, If the user drags a picturebox to an invalid place (outside the bounds of any of the empty pictureboxes), the dragged picture box should return to its previous location.
So what I currently have is the usual drag-drop code and on the MouseUp event, I run this code (currently only checking for one empty picturebox):
If Not pbEmpty1.Bounds.Contains(Me.PointToClient(pbRemote.Location)) Then
pbRemote.Location = OldLocation
End If
(pbEmpty1 = Empty picturebox, pbRemote = picturebox that is dragged)
But it doesn't work, it doesn't care if the picturebox is inside the bounds of the empty picturebox or not, it still returns to its previous location...
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].....
When I add an 3party Library (Gibraltar.Agent) to a VB.NET project I get namespaces which interfere with my current code. For example the namespace Gibraltar.Agent.IS makes the following code invalid:
[Code]...
I try to hide the radio button if the cell is blank but the radio button still show even the cells is blank. why the radio button will not hide?
Dim temp As String = questionDetails.Rows(3).Cells(1).Text
If temp = "" Then
Option3.Visible = False
[Code].....
How to detect picture has a picture on empty?Suppose , I droped a picturebox control on form, there is no image loaded in it, what codes should I needed those will tell me that picturebox is empty?
View 1 RepliesIn the following code is the way to make a picture transparent (picture i1 is emty and opacity can get values from 0.00 to 1.00[code]...
View 1 RepliesHow can hide the picturebox(or usercontrol) backcolor?
View 8 RepliesI'd like to hide the contents of a picturebox while still preserving it's imagelocation, width, height, borderstyle, top, left, and sizemod properties. Is this possible?
View 2 RepliesIs there a way to to hide the taskbar o.o and unhide it?
View 1 RepliesI have a PaintEventHandler connected to a picturebox via AddHandler.
In PaintEventHandler I have coded this for writing the drawing to PictureBox1.Image:
Dim PictureBox1 As PictureBox = CType(sender, PictureBox)
PictureBox1.Image = New Bitmap(PictureBox1.Width, PictureBox1.Height)
Dim bmp As Image = PictureBox1.Image
Dim g As Graphics = Graphics.FromImage(bmp)
... drawing something ...
PictureBox1.Image = bmp
Everything works fine but after running through the paint event handler and showing the picture on the screen it calls the painthandler again and again. It does not stop.
Replacing the code above with
Dim g As Graphics = e.Graphics
Makes it running. But then I cant save the Image to a file.
i'm doing a simple form tat could add picturebox during runtime and i could add several picture into it.
View 5 RepliesSo I'd like to have it so that on the form load it plays and animated gif, then after that gif is done it hides and then shows a different picturebox. How would I be able to do this? Could I use some form of timer and count how long the gif lasts and then use a timer for how long it is? If so how explain a bit.
View 8 RepliesI am trying to draw a line on top of a picturebox but it keeps going behind the picturebox, even when I do Line.BringToFront()
View 10 RepliesI was wondering how could I drag an image from a picturebox to another picture box. Anyone knows? Any tut or something.
View 10 RepliesI'm curious if it is possible to hide a group of text boxes from view in a form until a particular condition is met, and to have a custom set of text boxes for that condition. To give an example; I want radio buttons offering choices for a manner of searching records, the user selects one and then a specific set of text boxes are displayed for the user to utilize, if a different option is chosen a different set of text boxes will be shown. Is this something that can be done?
View 7 Replieshow to hide exe into task-manager in windows 7 using vb.net windows application?I want exe is hide into task-manager in windows 7 & windows vista machine using vb.net(windows application)
View 3 RepliesHow can I empty a collection in .NET? Let me specify that I don't want to destroy the collection , I just don't want it to have the objects it had before (so I can refill it from scratch) .
View 3 RepliesIm making a program that reads from an ini file and then prints it in the form I have a problem when Im trying to open the compiled file the form is just blanc and there isnt any text its like it isnt reading from my code
here is the code
Imports System
Imports System.Collections
Imports Microsoft.Win32
Imports icsharpcode.sharpziplib.zip
[code]....
is there a way to show in datagrid only those row that has column that is empty, im using this code
Me.DataGridView1.DataSource = ds.Tables("0").Copy() but it shows all the data from my table.
What is the best datagridview event to use these codes I want to check column 0 is empty or has some value
If e.ColumnIndex = 0 Then
If DataGridView1.CurrentCell.Value = "" Then
MsgBox("Empty Value")
[code]....
My app is functionally fine. Although, after the login, it throws up this error:
"Argument 'Path' is Nothing or empty". If I click continue, it proceeds without any problem. I looked up on msdn forums and realized that I need to add a valid argument 'path'. Here is the link to the msdn page I looked at:
[URL]
ive been searching round the net but the only examples i can find are for vb6 which i know nothing about, i want to be able to scan a folder and all sub folders with in it and delete any folders which are empty.
This is all the code ive put together so far:
vb Dim folder2scan as string = Folderbrowser.selectedpath
If IO.Directory.GetFileSystemEntries(folder2scan).Length = 0 Then
End If
Im making a program that reads from an ini file and then prints it in the form I have a problem when Im trying to open the compiled file the form is just blanc and there isnt any text its like it isnt reading from my code
here is the code
Imports System
Imports System.Collections
Imports Microsoft.Win32
[Code]....
I am trying to empty my input buffer when I open up the serial port using this code but its not working any suggestions? Mainly just look at the last line [code]
View 6 RepliesI am using VS 2008 to upload a zip file created earlier in the program, the ZIP file is created where expected on the FTP server but it is empty
View 2 RepliesWhen listbox is added to by the user a number of empty RTF files are created and saved with a string variable SavePath1,SavePath2 and SavePath3. The user can then add date to 3RichText boxes and save the data. The data can then be cleared from the RichText boxes, anotheraddition to the listbox and fill the RTB and save. I need to trap the RTBs being filled and the clear button being pressed before the data is saved. To do this I need to test for empty files and tell the user the data has not yet been saved.
View 1 RepliesIm trying to create an empty element in an xml file but still want to be able to close other elements without changing the empty element.What XMLTextWrite does to empty elements:
<Data>
<Feed>
<EmptyElement />
</Feed>
<Data>
When i use the text writer i cant use <writer>.StartEndElement() it starts to screw with my empty element. When im still having my program write inside feed. Here some code your you to drool over.
My example
Dim Settings As New XmlWriterSettings()
Settings.Indent = True
[code]....
Upon searching and learning more about vb.NET. I developed simple application using webbrowser component. I want to ask if it is possible to hide our IP over the internet using vb.NET?
View 1 Repliesi am working Hide or Unhide Rows in the DataGridView. When i click RowHeader the corresponding row is hiding. But i don`t want to hide the RowHeader. The RowHeader should be visible when i click RowHeader, the remaining row should be hide. B`se i want to access the RowHeader again for unhide the row.
I am using the below code for Hide the Row.
Private Sub datagridview1_rowheadermouseclick(ByVal sender As Object, ByVal e As DataGridViewCellMouseEventArgs) Handles DataGridView1.RowHeaderMouseClick
Me.DataGridView1.SelectionMode = DataGridViewSelectionMode.RowHeaderSelect
[Code].....