Detect Empty Image In Picture Box?
Jun 11, 2010I 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?
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?
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 RepliesI 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]....
I have a report that i'd like to display an Image for each record. But not all records have an image. The problem I have is that the last image is then repeated in the next record.
I would like to know how to have any empty field display a default image.
Code I have in report
Private Sub Detail_Format(Cancel As Integer, FormatCount As Integer)
Me.Image21.Properties("Picture") = Me.PhotoLink
End Sub
Photolink is a textfield and Image21 is an Image.
I have an app that loads a jpg into a picyure box, then updates exif data in exifworks classThe problem is that when I save the image(from image used for picture box) or class (to save exif data) then try to delete, sometimes I get success, others it won't allow delet I have gone to the trouble of using gc.collect, do events, put the delete in a timer & wait for the delete before continuing & still get the problem
View 7 RepliesWith a button click event, how do I make a picture box image property switch to a random image from the resources folder?
View 1 Repliesi'm lost on this code.. i have a picturebox that swaps 2 images, depending on the action, file_red and file_green.. what i'm trying to to is, if a picturebox switches a image or not, to be able to detect that and have textbox8 add a line with the detection.
[Code]...
I made a picture box and imported an image named Title.jpg. Later I made adjustments to the picture and imported it again without deleting the original(mistake). The new one had the name automatically changed to Title1.jpg. So I deleted the original image from resources and renamed Title1.jpg back to Title.jpg.
Now I got two problems. First, only Title.jpg is on the solution explorer, but Title1.jpg(along with Title.jpg) still pops up on the resource list when I click on Image property of the picture box. There's only the name and no picture, and I don't see a delete option. How do I get rid of it? Second, even though I changed the image to the new Title.jpg in the picture box, the old one is displayed when running the app. What's up with that?
I have Problem to clear the image vb.net.i have one picture box and 4 button but the problem is that if picture is save in the path folder.and load in the form load the clear button is work fine and clear the image but after that
when i browse the image and press OK picture box load the image then i press clear button
the image is not clear its automatically Stretch the Image.plz help me how can i clear thew image
[Code]...
Using VB.net 2010, Windows 7, and SQL Server Express 2008 R2.
I am trying to save an image from a picture box to an image field in SQL Server. The line of code below produces an error. What am I doing wrong?
...code
objCommand.Parameters.AddWithValue("@ss_no", mskSS_No.Text)
objCommand.Parameters.AddWithValue("@d_code", txtD_Code.Text)
[Code]....
Everywhere 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:
im getting a image from my database to a data set. before i convert it to a proper picture i need to check whether ds.Tables("userDetails").Rows(0).Item("photo") is EMPTY or NOT. How should i write the if condition? <code>If ds.Tables("userDetails").Rows(0).Item("photo")<> ??? Then
Dim pictureData As Byte() = DirectCast(ds.Tables("userDetails").Rows(0).Item("photo"), Byte())
Dim picture As Image = Nothing
Using stream As New IO.MemoryStream(pictureData)
picture = Image.FromStream(stream)
End Using
[Code]...
I am working with my web cam and it works, but one problem like all the other vb webcam programs it use a handle witch uses a creatgraphics for the object. Well I happen to be using a picturebox for my handle, and I need it so if I minimize the form, the image is still there. Is there anyway to put the image into the picture boxes image?
View 3 RepliesI am using a RichTextBox control on my form. I want a small code which can detect if any image has been inserted in the rtb or not. (IDE VS 2008)
For e.g. user can just type some text or insert image also (Ctrl + V). Now if we select an image then we can get the type but I want a code which scans contents of rtb and gives me a true if an image is inserted or false if there is none.
I have a VB.Net project. The form has a panel and few buttons inside panel... The problem is that the background image of the panel is only visible behind buttons....but not in empty space....The app is running fine on Windows 7 but the problem comes on XP....I have tried "Enable XP Visual Styles" but no luck....When i dock a button to fill all empty space then the background image is visible....but if i remove the button ... background image is not visible....
View 2 RepliesI already have the setting in Outlook to prevent automatic downloading of images but I still receive e-mail junk mail containing stationary. There is even a setting that prevents all images but that is the problem: It does it to ALL images.I would like to trap and move all messages with any kind of image in it and send it to a junk-mail folder. Someone told me that I might do it with a plug-in or an add-on and that it might be able to do this in VB.
View 5 RepliesWhat I have: 1 OpenFileDialog, 1 PictureBox, 2 TextBox's This is what I got so far, but I'm just stuck on how to have the width of the image automatically detect and put the images width in pixels in TextBox1, and the height in TextBox2.
Public Class Form1
Private sizew As Integer
Private sizey As Integer
[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 RepliesI wish to trap all e-mail messages that contain an image. Apparently there is no standard rule option in Outlook to do this. Once written, how would I enable this in Outlook?
View 2 RepliesI am using a richtextbox control on my form.I want a small code which can detect if any image has been inserted in the rtb or not.For e.g. user can just type some text or insert image also. Now if we select an image then we can get the type but I want a code which scans contents of rtb and gives me a true if an image is inserted or false if there is none.
View 8 RepliesI am making a lunar lander game that randomizes the terrain for each new game, so each game is different. For my game, I am creating a graphics object that draws a closed curve for the terrain of the game. I am trying to then detect if a picture object collides with the graphics object.[code]...
View 1 RepliesHow can I set the column width and leave the top 10 rows empty in order to insert an image into my Excel report?
Here is my code:
If ComDset.Tables(0).Rows.Count > 0 Then
Try
With Excel
[code]....
I am trying to change imaghes in a single picture box when a command button is executed. I do not want to create 100 different picture boxes to display different images
View 10 RepliesI'm making an application that involves grabbing an image from a website. On said website, there's only one .png image that needs to be grabbed, but the image name changes. I'd like the image to show up in a picture box. Everything's working out except one line.[code]
View 1 RepliesI'm creating a key logger in vb 2008 for my home computer that can send keys records & screen shoots at my E-mail. It has a textbox, 3 buttons, a picturebox and some timers,actually the process is that in every 3 minutes button1 take a screen shoot (at 2.90 minutes) OK, then button2 save it in "C:/mydir/hidden folder/" (at 2.95 minutes) then button3 send it via Email as a attachment (at 3.00 minutes), its work fine in first round or first 3 minutes.but in Repeating Process or in 2nd round or after 3 minutes it give error that means image is in use, I want to break the link between image and my program (key logger) there for my
View 1 RepliesLike The Avatar On Here (MSDN).
View 8 RepliesHow can i load a picture in an Image Boc and how can io generate a Random number with tow levels.
View 1 RepliesI have a picture box in a panel control. I want to be able to scroll the image in the picture box. I have added two separate scroll bar controls (Vertical and Horizontal). When the control loads, it load the image properly. However when i scroll the scroll bars, the image vibrates but does not actually scroll. Is there a property I need to set in the picturebox? I am assuming that when the picturebox loads the image that it defaults to Normal. Thus the image is clipped. Does this mean that I cannot scroll it? I have tried the other SizeMode properties (Stretch, AutoSize, Zoom etc). But I still cannot get the image to scroll.
pnl1.Controls.Add(PctBx1)
PctBx1.Dock = DockStyle.Fill
Private Sub VScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles VScrollBar1.Scroll
[Code].....