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?
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I used code below to save image. It works fine.[code]...
1) How to detect if there is no picture in box?
2) How to assign a null value to @signature?
when adding picture to dynamic picturebox from my.resources in .dll a duplicate semi functional picturebox is added too, behind the picturebox i intended to add. has anyone seen this happening before or can provide any insight into this?
View 1 RepliesIn a form I have two picture box and I want to drag the picture from the picturebox to a blank picture box and have that picture pasted there, how do I do that? I'm using VB.net 2003.
View 3 RepliesI have an app that downloads a picture into a picture box. The picture changes on the web page but not in the picturebox.
How can I refresh the picture box with something like this?
I want an if statement to detect if a listview is empty and then show a message;
If lvwoutstandingproj.
MsgBox("No outstanding practices present", MsgBoxStyle.Information, "VeriSIS")
End if
Is there a way to catch the vent when a user clicks on an empty listview/details control please? I want to enable the listview when a user clicks on it and disable another control. Or should I be using another control?
View 5 RepliesThe only way I know of is awkward:
'check for empty return
Dim count As Integer = (From s In myEntity.employee Where employeeID = myEmployeeIDVariable).Count
'If there is a record, then process
[code]....
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.
In 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 RepliesI 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 know this may seen a simple request, but if you start a timer, and jump into a while loop, how come the timer stops working unless you use DoEvents?
However, using DoEvents, if you have a picturebox to click to stop the timer, you have to click it twice to stop the timer?[code]...
I have a picturebox that displays an image on a form. The image thats displayed is from an image folder and has 8000+ images. The images pull in just fine and change as the text in the me.txtPartNo.text changes.[code]...
View 8 RepliesEverywhere in this picture you see a blank item, or empty space, a control has failed to draw of something. In this case they are all textboxes.
picture:
This time I have seach in the forum, and can't find the answer I have a picture box with a slide show what i want is when i click in the picturebox i want the name on the picture
View 8 RepliesSomebody knows how to shrinks a Picture and display it in a Picturebox without stretching it, keeping the same look.
View 4 Replieshow to change a picture in picturebox with another picture..like want to replace old picture with new picture..when i try a code.. it always say "picture already in use.." and can't to be change..?
View 10 RepliesI'm using vb.net 2010 framework4 I wanna know how to load a picture from the internet into a picturebox for example: i want the picturebox to load the following picture:[URL]
View 7 RepliesI'm stuck at a little Problem. Well I got an Image in a Picturebox and need it to convert it in a Bytearray to store in an Imagecolumn in a Database. I do know how to convert a FILE to a bytearray, but I'm stuck at this. would be appriciatet. This is what I got so far, but like I said, it didn't work properly.
[Code]...
How would I draw a picture on a form? Would I put in a "picturebox" and draw in that? And if so, how do I do that? (I want to draw a bar chart).
View 2 Replieshow can i change the background color of a picture saving from a picturebox in vb.net.In my form there is a drawing section.after drawing i am saving the picture as jpeg.but the image's background color is black.so i can't see anything that i have drawn.the drawing pen color is also black.
View 2 RepliesI was wondering why my code doesn't work I want to save a picture from a picture box showing a webcam preview.
Code: picturebox1.Image.Save("C:UsersMyUserNameDesktopa.jpg") I think I need to use the "New" keyword to do something - but how?
1. is it possible to have a picture in a picturebox and then drag it to another so it gets placed there? if so, how? 2. can you assign a picture a name? because if i move it a cant use a code like this: picturebox1... = whatever. if so, how?
if i want to check for 2 variables thats right, do i use "textbox1.text & textbox2.text = 8" or "textbox1.text && textbox2.text"?
I couldn't find any handles that allow this, can anyone give me a hand?I want a Picturebox to display an image through a URL.
View 3 RepliesWhat i wanted to do is tell the Tool to display me a picture from the Web so lets say this is the Picture:
[URL]
I want that to load in to the Picturebox how does that work ?
Doe any one have a code to display a Image from a folder (C:***My ResepteWater lilies.png")) in a PictureBox?
View 2 RepliesHo can i display a picture from a datagridview into a picturebox when clicking on the cell?
View 10 Repliesthis is so simple its embarrassing to ask. How do you display a picture in a picturebox? I want to have a static picture displayed on my single form application. I tried adding a picturebox control to the form and setting the InitialImage setting to my pgn file. But when the app loads they image is not displayed. I've googled around and found many references to adding pictures out of databases and etc, but nothing as simple as my. I just want to display the one image.
View 10 RepliesI was wondering why my code doesn't work - I want to save a picture from a picture box showing a webcam preview.[code]
View 4 Repliesi got some problems in zooming the picture.i have 2 picturebox.picturebox1 is the orginal picture which i DO NOT want zooming picturebox2 is the one which i want to zoom..there are 2 buttons, button1 and button2.when i zoom, i donno how to program the picturebox so that the picture does not "jump out" of the box.[code]
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