VS 2008 Pre-load Images From Web, To Display In Form?
Apr 21, 2010
I want to pre-load a number of images from the web, so that I can display them in a form, and scroll through them without delay. It can be a large number, but i only need to pre-load perhaps 20, and then remove/add in advance, as I scroll through. The images will typically be .GIF or .PNG, of quite small size, <50kb.
What "type" shall I use to store these images? And how do I make web requests to put the data into this type?I guess it will be more convenient to keep this as in-code list of some memorystream type (?) instead of saving them to disk and having to deal with file names and stuff..? Also, what type of control shall I use to display such images?And if a memorystream is indeed the best choice, how do I make this show in the picturebox?
I want to pre-load a number of images from the web, so that I can display them in a form, and scroll through them without delay. It can be a large number, but i only need to pre-load perhaps 20, and then remove/add in advance, as I scroll through. The images will typically be .GIF or .PNG, of quite small size, <50kb. The link for any single image will look something like this: [URL]..and I will keep a list of all the links I need to access.
What "type" shall I use to store these images? And how do I make web requests to put the data into this type? I guess it will be more convenient to keep this as in-code list of some memorystream type (?) instead of saving them to disk and having to deal with file names and stuff..? Also, what type of control shall I use to display such images? Do I use a PictureBox?And if a memorystream is indeed the best choice, how do I make this show in the picturebox?
I need this for my program. There is "add images" button where you can load multiple images and those images should be show on listview after loading.I have been trying to make this but could not get it work.
I need a way to allow another form to load after my program display's an introduction cut-scene without loading the form in the middle of the cut-scene. Sort of like a delay.
I have a field for each record with a hyperlink to pictures in access database. I want to display the pictures in a picture box in vb2008.picturebox1.Image = dt.Rows(rowindex)("ImageUrl")I am getting the following error when i am trying to access the link
want to put an image strip on my form that will load all the images in the image directory automatically.now button..and can it scroll?meaning i dont want the form to bbe to w
I have an app where there's an edit form and it loads a bunch of stuff into comboboxes which takes half a minute to load the first time. Once it's loaded I keep the instance of the form and just hide it instead of disposing it until the app exits. What I would like to do is in the Sub Main of the app (there is no startup form) I would like to launch a new thread and load that form into memory, but I don't want the form to be displayed at that time, what's the best way to do this?
I am using VS2008. I have a table in which the jpg images are stored. I can retrieve the images from the table and display it in datagridview. But many images are of different sizes. So the cell height of the datagridview changes according to the image size. Is it possible to give a fixed cell size for the image column and also shrink the image to that cell height.
I am using VS2008. I have a table in which the jpg images are stored. I can retrieve the images from the table and display it in datagridview. But many images are of different sizes. So the cell height of the datagridview changes according to the image size. Is it possible to give a fixed cell size for the image column and also shrink the image to that cell height.
I am developing a visual basic 2008 express edtion program of an organisation that should get images from the system and display on image/picture box. further the program should save the displayed image in access database so that it can be retrieved together when you want to search the information about that particular employee.
It didnt work for me and i dont know why. i want to display text on label when the form load.the text to display is according to the enable or disable state of some custom button .
I want a rich text box to display public variables like (pizza toppings links etc that have been selected in other forms) these variables have declare in a module. But I want the rich text box to display these variables as soon as the screen loads ( a on form load event) if you know what I mean.
i am having an issue populating two combo boxes on form load. The program will connect to an access database and pull data as instructed. Then as it pulls each record it puts it into the combo box.
This was working.. atleast i think it was. i dont recall it ever not working, however i wasn't looking for it.
My problem is that if when i load the MDI parent form and have it skip the selection form and the login form and load the next form in the sequence, it loads everything perfectly. However if the select form is loaded first, then the login form and then the form i need loaded, it will not populate. The only difference between the two different loads is that the login form calls a function that loads the form as a new project.form
I did this so that I can have multiple forms open at a time. I am assuming my problem is that I need to get the child forms handle then populating controls using that handle? but i think if I had to do that then I would beable to populate the comboboxes on the first form load using the login method of opening the form.
Here's my code.
vb.net Private Sub frmLine1t5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.Text = "Line " & LineNumber & " Test Form"
In trying to test some graphic features, I am trying to get them to display on load so button doesn't have to be pressed. I used the following code as suggested from forum. Message boxes run but ellipses aren't displayed until button is clicked which is what I am trying to avoid!
Private Sub Form3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Button1.PerformClick() Button1_Click(Nothing, Nothing)
Imports System.Data Imports System.Data.OleDb Public Class Form1 Dim con As OleDbConnection Dim cmd As OleDbCommand
[CODE]...............
The insertion part of the form works great. But my problem is in the form load part......If i leave a field blank(Null),then perform Save operation,close the form after successful insertion and then reopen the form,then it retains the previous values during the form load......This is only in case where i leave a field blank in the previous data entry in the database.......But if i enter values in all fields then form load is working great.
I am loading images from the internet. I am using PictureBox1.imageLocation() but it takes a while to load the image. Is there a way i can load the images faster? it shows an error icon before it displays a picture...how can i get rid of that?
I'm having trouble loading images in a listbox. Is this possible? I don't want the listview. I only need the images, not the images as icons for something else. Also these are image from urls.
I am attempting to load all images from a directory to a FlowLayoutPanel. I am using the GetFiles() method to retrieve the files with a filter to just retrieve JPG files. When I run the program, it returns 'Conversion from string "*.jpg" to type 'Integer' is not valid.' exception. The offending line of code is:
For Each foundFile As String In My.Computer.FileSystem.GetFiles(FolderBrowserDialog1.SelectedPath, "*.jpg")
How do I load game images without a picturebox? (like in a game)I need them to be movible with the arrow keys. I am using a windows form, in VB 2008 express.
I have a very urgent project due for Monday and I am trying to implement a very simple Windows Application for viewing files.
One of the requirements is to store the history of images accessed and provide a navigation tool for those images logged into the history.
I have been successful in logging/saving the full system absolute path to a text file. Now it is to be able to navigate through the lines.
I figured I could do this by first counting up the amount of lines in the text file after a new image has been loaded to the display and added to the text file[history] and
Then using the count on the history file of total files to either decrease or increase the number as appropriate to load into the image file the previously written absolute file paths as the new images.
I am writing in Visual Basic using VB 2008 express edition and I can't seem to figure out how to count the lines in the text file and sub sequentially manipulate the line being read to display the image.
The app i am working on is for creating theme for the iPod touch... It has to deal with LOTS of images (100's potentially) There will be the set of default images, and then the user created replacement images. I started loading all the defaults into a resx file... thinking then I could just pull them out. now that I started setting the default, this sucks! lol the app will do this, on load it will set all the images (variables) to the resx images then when a theme is loaded, it will replace the default with the user image (if the user img exists) otherwise, the default stays. Then the "screen" is drawn to show the user. so, here is just the images to build the wallpaper, dock, and status bar...
