I have an image list and would like to add a directory of images to the image list in my code. How would I do this? When I run the code:
[Code]...
I get an out of memory exception. Currently there is only 14 images so there really shouldn't be a problem.
i have image list like this : [URL]
so, i want to get image from that file, and display to PictureBox.
I'm storing images in a List Of Image. When I want to clear/remove all the images it contains should I dispose & set each item to nothing before using .Clear? Or can you just call .Clear? I'm doing it like this for now...
' remove all images in list of image named "images".
For i As Integer = 0 to images.Count - 1
images(i).Dispose()
images(i) = Nothing
Next
images.Clear()
Does 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 have got two image folders namely a and b which consist of images of products. All images are save as there productid. how can can i find the images from a folder by passing there productid and save the images in a list.Dim AllImages As New List(Of String)
After saving it , how can i render those images one by one into string builder like
Dim imagecontainer As New StringBuilder
For Each image In AllImages
imagecontainer.Append("<img src="image" alt="" />") Next image
I need a code that will load text, the correct image to match it and the command for each image. what i want to do is make a program that will download a swf and an image into to folders. then at startup the program will load all the swf and images and put the images into a listview so when you click on the image for the swf file it will give the link to the swf so it can be loaded.
View 1 RepliesHere 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]....
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?
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 RepliesI created a new cursor (it works properly, I tried it in windows 7) but is not working for me in the program.I took the Windows cursor (aero_helpsel_xl, from C:WindowsCursors) and it appears to me the same error.i use with this code:
Me.Cursor = New Cursor("Patch..")
The problem say:: "{"Image format is not valid. Image file may be corrupted.
Parameter name: stream "}"
edit: I realized what the problem ... It can read only cur files with 24-bit color and lower - but it shows only two colors: black and white.
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 Repliesi want to know, which way program runs faster1- add image to button through its property -> assign image from project resource file2- on form load event, assign images to buttons, from project resource file
View 19 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].....
am trying to extract a preview image (jpg file) from a canon raw (cr2) photo file using the well known program exiftoolExtracting certain meta data works fine with this kind of code:
Private Sub GetExifData(ByRef id As ImageDataType)
Dim ExifTool As New Process
Dim ExifToolStartInfo As New ProcessStartInfo
[code]....
I 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 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]....
Does anyone have a simple code for Moving and Renaming a Image File?
Here is an example of exactly what I need to do.
Ok let's presume the end user is Editing a Record named Mick's Milktart, the DataBase Table Field named ID (Primary Key) has a value of 237.The user clicks a button to add an Image to that Record.
An OpenFileDialog opened and an Image File named "NewImage.png" is selected by the user from "MyPictures".[code]...
I'm trying to use a combo box to change the image in a picture box to one that's stored in an external folder. The plan is to, in code, take the part of the file's location that will be constant and concatenate the file name to the end. The file name is stored in a database.
[Code]...
this is the code i used from this site. everything works fine, but i need a little different code to upload image-here's the code -
Private Sub btnAttach_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnAttach.Click
Dim iLength As Integer = CType(File1.PostedFile.InputStream.Length, Integer)
[code]....
i dont have these parameters. i only have 1 field in sql server table that says Img and has image datatype. how do i use this code to get my image in db using this insert statement?insert into table1 (img) values (???)
The coding below is to retrieve the Raw Image Data from the Database and then write as a JPG image file. The problem is the image file (image.jpg) is "nothing" after file created. I guess there is something wrong in the following coding.
fs.Write(rawData, 0, fileSize)
No any runtime errors I can find, and I double check rawData (i.e. Buffer) contains data. But don't know why there is "nothing" inside the image (image.jpg).
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim fileSize As Integer
Dim rawData() As Byte
[code]....
I am loading a series of JPG images into an image list then using that to fill a list view. My program is using ALOT of memory by doing this. What would be the easiest way to add the images but take up less memory/time?
View 3 Replieshow can i add image directories using List Of(T). I can only know to add integers, strings e.t.c
View 4 Repliesi got my list box working.but it lists the path and the name..ist it possible list only the image it self?
Imports System.IO
Public Class Form3
Private Sub FindFiles_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FindFiles.Click
[code]....
With 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 want to save image in ms access 2000 database & i want retrive it in a crystal report in vb.net 2005
View 8 RepliesI've been searching for hours tonight searching existing posts, other websites and all i can find are examples of how to capture a image from a webcam.Does anyone have any code that simple talks to the camera device via WIA, and then saves every image found on the device to a hard drive?I found this code below. Credit i cant tell you as i have a bunch of different flavors of code, but this only saves the file as a tmp file, and not the actual image file i expected after selecting?
Imports System.Drawing
Imports System.Runtime.InteropServices
Imports WIALib
[code].....
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?
View 6 RepliesI am using ITextSharp and am trying to set the alignment of an image.
In C# (as per all the examples) it is:
code:
I cannot work out the equivalent of the "|" in VB.
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?
I am "weeks new" to visual basic 2008 but I was hoping that someone might tell me how I can open an image in whatever type of "visible" graphics window (always positioned at: x=0 y=0); move to some "definable position" of interest x=(n) y=(n); change the brightness of that "individual pixel" by some "definable means of measure" from its original state; and save the new image as a separate image file?
View 4 Replies
