VS 2008 Finding If An Image Control Has An Image Loaded (flashing An Image With A Timer)?
Aug 14, 2011
I'd like to verify if an image control has an image loaded . If it does , I want to unload that image (and load no image) , but if the image control has no image loaded , I want to load an image . Is it possible ?
If ImageMY.Image.Equals(Nothing) Then
ImageMY.Image = System.Drawing.Image.FromFile("C:ImageBlaBlaBla.jpg")
Else
[code].....
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Feb 15, 2011
find a current and simple way to do this. I'm using VWD Express 2008 and SQL Express 2008.I'm able to get the client's path to the image file using an asp:FileUpload control on the web form.How do I upload the client's image file and display it in the web form's image control?How do I save it to the sqlserver? The image table is already set up with a "Image" data type column. Can the image be saved to the database as simply as other data types?
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Nov 7, 2010
Here is the code:
'Add images column to DataTable.
ds.Tables(0).Columns.Add("Image", GetType(BitmapImage))
'Create array of image paths.
Dim currentDir As String
[code]....
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Dec 8, 2009
How do get reference to the error image that is laoded by default if there is no image when using imagelocation I am trying to build an IF statement to only do something if picbox is not = error image
If PictureBox1.Image <> Image.error.system.drawing.Bitmap Then
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Mar 10, 2010
i am creating a table in vb.net code (htmltable) with htmltablerows and htmltablecell. I gave on image control but thatr control cant have the .imageurl property, which i need cause i have a handler image.ashx which brings image from the database.
heres' the code -
TD = New HtmlTableCell
Dim img As New HtmlImage()
img.ID = "image_" & rd("ID")
[code]....
on the last line, "img.ImageUrl" i get this error -'ImageUrl' is not a member of 'System.Web.UI.HtmlControls.HtmlImage'how do i fix this?
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Feb 1, 2012
I'm trying to update pictures boxes with images of controls stored in an imagelist owned by a control. The images stored in the control.imagelist do not showup in the picturebox. I'm working on simplifying the code to post, but for now could use help.If I store the image in a member variable owned bythe control it woks fine.Something to do with persistance of images in control owned imagelist? [code]
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Jan 17, 2010
I hoping to find a current and simple way to do this. I'm using VWD Express 2008 and SQL Express 2008.I'm able to get the client's path to the image file using an asp:FileUpload control on the web form.
How do I upload the client's image file and display it in the web form's image control?How do I save it to the sqlserver? The image table is already set up with a "Image" data type column. Can the image be saved to the database as simply as other data types?
View 3 Replies
Jun 6, 2011
i am trying to draw a iamge in an mspaint control, and then put that image into a richtextbox but it will ask for save file and file has been saved i want to show image in richtextbox as soon as click on save file in dialog window.
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Apr 10, 2009
How do I draw an image respectively on the PictureBox control and Image object? Welcome to the All-In-One Code Framework! If you have any feedback,
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Apr 5, 2012
I have entered an image in sql server database successfully. Now i want to retrieve this image from database and show it in an Image control. I don't want to put any ListBoxes on the page. I wrote in ASP dot Net..
Dim MS As MemoryStream
Dim IMG As System.Drawing.Image
Dim FS As FileStream
[code]......
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Mar 13, 2011
I have a form which contains an Image control. What I am trying to do is find a way to adjust an image according to the size of the control and have the image look normal no matter how I adjust the Image control. I want the actual image to fill the Image control completely and not loose any integrity.
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Jul 22, 2009
i am hoping that the possibility to locate all the controls that contain a certain image from the resources, and swap out that image for every control that contained it, will help me narrow down on the simple coding.
something similar to:
for every control that contains backgroundimage=my.resources.imagefound
replace backgroundimage=my.resources.imagereplaced
i tried the above code and it did not work.. lol..
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Mar 19, 2010
I am using a kodak image control in my windows application using vb.net. Now, My Question is that how can i get the initial size and make zoom in and out work?
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Dec 5, 2011
I have 2 images. One image is a large image and the second one is a small one. The small image has a copy of itself within the large image. I am wanting to find the coordinates of where the second image is located within the large image, a 'find feature' in other words.
e.g, I might have an image with the word "Test" in it. And I want to find the coordinates of the letter 'e'...
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Nov 2, 2010
In VB6 you could BITBLT things around before refreshing the screen. In .NET, I'm aware of DrawImage, but that can only be done on a paint event rather than before anything gets painted. The issue I have is, I need to open several files with image data in them and then build a bigger image with those smaller images. Before I could open them, BITBLT them to a Buffer. As far as I can tell .NET offers no way to do this as the only function I've been able to find (DrawImage) only works within the paint event. Is there still a way to do this in VS08 or no?
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Oct 14, 2009
Ive been programming in VB6 for years, i figured its time for an upgrade. Here's what im doing, and what the problem is:
Im loading a bunch of pictures on top of one image. They are all PNG files, and some of the images have transparent edges, and some semi-transparency within the image itself.
So basically, i need to be able to load these images on top of the other images, and still maintain the transparency.
Is this possible in VB08? This is one of the main reasons i moved to 08 from vb6, more things possible including multithreading.
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Jun 19, 2009
I need to know how to use listview, I'm having trouble using it.What are listviews uses?What can be listed in listview?What cannot be listview?If an image is in listview, will it display a thumbnail of the image?
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Sep 4, 2011
I want to draw an image onto another image object but use an alphamask specified from another image that is grayscale.
I am drawing an animation manually so don't want to do this pixel by pixel as this would be extremely inefficient.
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Sep 15, 2009
I'm having a problem getting the src of the image the mouse is hovering over in a webbrowser. I can get an href just fine, just not an src. To get the href, I used this
Something = Webbrowser1.Document.ActiveElement.GetAttribute("href")
When I try to do it for an image, nothing happens. How do I get the image location?
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Oct 3, 2011
I am trying to edit an image. I can open the image with Picturebox1.load(mypicture)
I can change the pixels/edit the picture by Dim img as new bitmap(picturebox1.image)
[Code]...
now here is the weird part. When I save the image the filesize INCREASES..but the picture dimensions are the same Example... TEST.PNG 1.3KB, when opened up via picturebox/saved the image is now 2.3KB
not sure why...i even though I specify system.drawing.imaging.imageformat.PNG
samething with JPG... it actually SHRINKS it evenmore.. example 88KB jpeg.. saved as jpeg is now 47.7KB...
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Dec 9, 2009
How should i clean up after drawing to an image on a timer? I am getting a memory leak BTW I don't really understand why this is necessary; i mean shouldn't .net automatically clean up when an object has no longer any references to it?anyway here is basically the outline my
vb
Private Sub MainTimer_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles MainTimer.Tick
...
Dim FaceBit As Bitmap
[code]....
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Mar 18, 2012
I am trying to read a 16bit binary file (tif image) and pixel values of the image ranges from 1200 to 4500. I tried to use BinaryReader using ReadUInt16 but I get EndOfStreamException Unhandled error. ReadByte method works fine with an 8bit tif file. I do not know how to read a 16bit image file using binaryReader. Shouldn't I use ReadUInt16 since values of pixels range from 1200 to 4500?
[Code]....
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Jun 8, 2010
Screen and send are both bmps:This is what I've tried so far but it doesn't work
For y = 0 To screen.Height - 1
For x = 0 To screen.Width - 1
If getpixel(screen, x, y) = getpixel(send, 0, 0) Then
[code].....
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Aug 18, 2009
Now I have inserted a picturebox and now I have to get the color value of a pixel of the image which I load to it.
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Apr 5, 2010
How do I create a program that finds the position of an image that is contained in another image?
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Aug 1, 2009
I'm trying to get the image's name from a imagelist..[code]ofcourse that "name" doesn't exists, and I'm trying to find out what another correct way to get the name of that image.
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Feb 20, 2011
code which brightens an image loaded into a picture box.
The form has two picture boxes, one for unprocessed image and the other for processed image.
A track bar is to be used to increase the brightness and darkness.
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Sep 5, 2011
when i upload image then 2 enteries can loaded. 1 is image entry and 1 is blank entry. i dnt know why blank entry is loaded.
[Code]...
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Jan 18, 2012
I tried to use the codes below to retrieve Image Width programmatically, but it did not work. [code]...
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Sep 23, 2008
I am trying to verify that an image has been loaded into the picturebox1. I am loading the image from the web and need to verify it has arrived before I can save it to disk. If I save it to soon I will save nothing and that will crash the app. I have tried to use 'if PictureBox1.image = nothing then' ... 'End If', but that isn't a valid check. I can obviously not check picturebox1.image if it is empty or has an image.
So the question is, how do I verify that the file has finished loading?
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