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?
View 4 RepliesIf you drag something like a picture in explorer it displays its icon or thumbnail ,can this be achieved in vb.net? ,i have two forms ,form1 is a boarderless form with just a pic box ,now i can drag n drop this to another form with easy. but is thay away to display its thumbnail while dragging said picbox image?
View 2 RepliesI have a listview control. it has an imagelist attached to it with two images in it. I have entered items into my listview, and they are using the first image in my imagelist.... GREAT! Now, there is a variable I have that will tell me which index in the listview is currently active, noting to do with what I select that could be at another index it's just what's being processed by the program at the time in some task.
Create a function that will change the images of all my listview items by looping through them. If the index variable is set to 2, I want the 3rd item in my list view set to use the 2nd image in my imagelist. The rest of the items in my listview need to be set to the first image in the imagelist.
I have some code that allows the user to browse for an image and then when that image is opened, it is copied to a new directory. This all works fine, but I would like to know if there is a way to create a thumbnail of this image and save it into a subdirectory inside the directory where the original image has already been copied?
View 5 RepliesI have a system where users can upload PDF documents. Rather than displaying the link to these PDFs as a title link, or a PDF icon link, I would like it to be a thumbnail of the first page of the PDF document.
How can I get a thumbnail image of the first (or any specified) page of a PDF document, using ASP.NET 3.5?
I have 52 listview items in my listview1 and I have a picturebox basically I want it where I can click on a single item in the listview and display an image from a url in the picturebox. I basically have it right now that when you click on any item in the listview it just shows the same image in the picturebox no matter which item it is. I need to figure out how to do it separately for each item.
View 12 RepliesI am in search of a way to access a files thumbnail preview and push it to a picturebox on my form. I have the code below that works for jpg files, however it does not work for say a word document's thubnail. displaying the word documents thumbnail in a picturebox would be great!
Dim myBitmap As New Bitmap("C:Doc1.doc", True)
Dim myThumbnail As Image = myBitmap.GetThumbnailImage(40, 40, myCallback, IntPtr.Zero)
PictureBox1.Image = myThumbnail
Im looking to create a thumbnail from a jpg image. the image is stored in c: empimage.jpg all im trying to do is create a thumbnail from this and save it in c: emp humbimage.jpg. Ive found a number of C# tutorials and some vb.net ones. Apparently this is a really easy thing to do.
View 1 RepliesI'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].....
I have a database and I'm storing images in it along with a person's name, and other attributes. I've databound my listview with a stored procedure. I want to know how I can display an icon on a row depending on if the record for that row has a picture or not for the person...I'm not sure how to accomplish this however with the templates in asp.net
EDIT:
Here is my template and the s where I'm hoping to put them.
<ItemTemplate>
[code].....
Im looking to embed an .exe into my form. An example of what I want to do is the preview area when selecting a screensaver in Windows. It shows a small running preview of the app in the current window. How do I do that in my VB form?
View 1 RepliesI am trying to incorporate in my vbdotnet application a form in which I would like to make a thumbnail from an image. So what I have is two picture boxes, one with the source image and the other with the destination image, I would like to crop the image from picture box 1 and display it on picture box 2, but the way I wan to crop it is not giving the coordinates of the selected area box but to simulate a selection area box in which the mouse can move the box and select the area of the picture to be cropped. This selection area box would give me the coordinates i need in order to proceed the cropping. The problem is I don't know how to create this selection area box. It is like doing the cropping on a graphic design software like Macromedia Fireworks, Adobe photoshop, even paint.
View 5 RepliesDoes anyone know if it is possible to resize an imagelist/listview image without repopulating the image list? I am using scroll bar to change the image size from 25 point to 256 point. When I leave the scroll bar the imagelist repopulates from the files list. This can be very slow when working with high resolution pictures. I don't want to limit the image size to 2 sizes by using large and small imagelist.
View 1 RepliesI've been playing around with Windows 7 taskbar thumbnail previews. I've noticed that some Microsoft applications are able to set thumbnail images which have transparency in background. I've been trying all out and not been able to achieve this.
I've set a picturebox control having PNG with transparency as thumbnail preview, doesnt work. I tried creating a new bitmap and loading from Icon file having transparency and setting it as preview but still doesn't work. It keeps showing the background color of the form window.
This is what Microsoft apps are able to acheive:
[URL]
I have an image upload facility in my asp.net project, when uploaded a thumbnail of the image is generated and saved to disk. What I would ideally like to do is apply some nice styling effects to this thumbnail image.. similar to the look of the icons on an iPhone.. perhaps a slight gradient, smooth rounded corners, and a border.
View 3 RepliesI have a CheckedListBox and a thumbnail control and I am trying to save and retrieve back the images along with their path.
I need to show their image path in the checked list box which I am able to do but I am unable to get the images.
I want to know how to read Images from the saved text file and display it in the thumbnail control.
Here is the code:
Private Sub LoadProject_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles LoadProject.Click
Using ofdlg As New Windows.Forms.OpenFileDialog
[Code].....
i want to save image in ms access 2000 database & i want retrive it in a crystal report in vb.net 2005
View 8 Replies1) Add a new record - I can currently add records text to access database, but not images.
2) Get the ID [URL]I'm not sure how to integrate this code into my code. I am stuck here.
3) Save the image in the filesystem using the ID as a filename - I can save the upload an image and save the image to a directory on my computer, but I am unable to name the image that of the ID of the access database.
4) Update the database to put the filename in the record you just created. - I am unable to do this as well (obviously).
Protected Sub SUBMIT_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SUBMIT.Click
Dim custDb As Data.OleDb.OleDbConnection
Dim cmdInsertCustomers As Data.OleDb.OleDbCommand
[code]....
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?
View 1 RepliesAfter reading some tutorials i have kind of grasped loading images in vb.net, you need to load them into an image list then use the "key" of the image to display it, i have put together this
[Code]...
I am doing a project wherein I have to display an image in system memory (in a buffer of size: column*row) onto a form or say a picture box. The size of an image will be known to me by pixel's column & row matrix. The picture (frame) will be captured using a CMOS camera. I am using VB.Net for developing the User Interface
View 3 RepliesI am capturing Frames from a camera and storing the RAW DATA of the picture(frame) in a buffer(declared as Byte). Now my question is that: Is it possible to display the Image onto a picture box directly from the Raw Data stored in a Buffer, without converting it to a Bitmap or any other Image type? If so how to do this?
View 15 RepliesI have a database object and one of the items is an image which is stored on the net. i wish to display this image in a datarepeater. I have the data repeater setup correctly and the item in question is a picturebox. here is a basic idea of what i am trying to accomplish
For Each itm In joblist
Dim j As New Job
j.ID = CInt(itm.ID.Value)
[Code].....
Well i ran this and it doesn't display anything on the datarepeater. I believe this is because the image hadn't been placed on the control before i take it off, but i would have expected that it would be there for other items in the list but it isn't. I then got thinking i should put this onto an imagelist so i dropped an imagelist onto the form and realised i still would have the same issue as i'd be placing an empty image onto the image list and would have the problem of taking it off so abandoned the idea.
How can i draw text(demo demo) on exist image from top right corner to bottom left corner of exit image (on photo) in windows based applicaiton using vb.net.
View 2 RepliesIn my project, I have a form with a background pic that I like, but unfortunately, I also have a ListView on that form which covers most of the picture. Now, is there a way to find the part of the background image concealed by the ListView, and then display it as a background image of the ListView at decreased opacity? You know, like a vague image.Just one more thing, setting the form's transparency key to the background color of the ListView is not an option.
View 39 RepliesMy program parses chat room text. In the room there are smileys that get displayed. What I'm trying to do is parse out the image URL, download the image and put the smiley in the correct spot between the text of the message.I can do the parsing and downloading of the image into the datagridview but this only works of the column is set as an image column. Obviously due to the nature of the program I need to be able to put both text and images into the same cell. How can I do this?
View 4 RepliesIn 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?
View 6 RepliesIve 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.
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.
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?