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?
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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()
I get some very generik trouble need to implement List View with Image in SubItem. All can be very fine ....But I need to use Virtual Mode. Whatever I search I haven't still found working solution's. I have found some C# code that seem's do that. But I can't convert it in VB.Net. let's explain detaly.
View 2 RepliesHow to add the images or Extracted Icons to a Item in a ListView?
View 2 RepliesMy application uses a list view that populates with images from files. The items in the list can be edited by the user including updating the menu images but when that happens the list view loses all it's images and won't reload them without re-booting the application.Here's a screen shot of my list view when you first start up the app Screeshot1 ..which is correct. and here is the code that loads the images (lvBinSelect is the list view in question)..
Function UpdateCalcPicList()
lvBinSelect.Items.Clear()
ImageList1.Images.Clear()
[code]....
picBinSave and picMenuSave are the image boxes on the second tab you see in the last screen shot that previews the images. These refresh perfectly on updating.Now as you can see it calls the UpdateCalcPicList function again after clearing the list view which should in theory repopulate the list view with the updated images.But All I get is this after a user has changed an image and they go back to the first tab....The images are loading back into teh list view. The only way to get them back is to restart the application and it's fine again and load with the new image the user changed to. I have had to use 'Application.Restart()' after the change is made as a workwround but this is obviously not ideal.
how to fill List View and Data Grid from a Database (SQL Server).
View 4 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 have a program with the ability to save view and scan images. i am currently working on making work area's. so i have two list box's. listbox one is for the image area name. listbox2 is to list the pages in selected image area (mouse click). i have created the form to show you and i will post a link below. i have started trying to do it but have got stuck. i use an input box to give the image area's names. but thats as far as i have got at the min.
i need to be able to make image area's and list/view the images in my picturebox. plus i would like to create a folder or how ever many the user makes behind the scene thats called whatever the image area is called and in that folder is the images the user has saved in that folder. sorry if this is hard to understand. i have asked on another forum but i didnt get what i wanted it to do.
[URL]
i have gave you a link so you can see what my form looks like so you have a slight understanding on what i want it to do. its work in progress so sorry if it looks rubbish.
by the way i can save an image but it only saves it one certaint place and i cant save more thasn one as it replaces the image. and as for the scanned image thats the same.
I have a list view box that shows a few image files and when i click them i want the image to show in the picture box but i am unable to figure out how to do so i have tried the following code with no success,pbImage.Image = Image.FromFile(ListView1.Text)when i try this code i get an error saying,
View 3 RepliesI have manage, to allow user to browse through their files and insert an image path into a local database. The program will then retrieve the image from the image path and will be stored into ImageList. The Listview1 will then add the pictures of Imagelist into the ListView1.Items. Now my question, how can i retrieve back the path of the image when the users click on the selected image from the ListView?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Table = "ItemList"
[Code].....
I've got myself a listview, and an imagelist. I'm using the following code to grab all images from a folder and place them into an image list.
[Code]...
What I want to know now is how to drag item from list view and drop it in image box.. with drag icon.I used to use vb.6 there is a drag icon.
View 4 RepliesThis is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)
[Code]...
I have added a list box and now i need help to display the data about my employees in the list box. How am i supposed to do that, do we have to put in codes or need to use that small arrow near the list box.
View 15 Repliesi'm developing .NET app. and using some vb6 common controlsin design mode I can create image list and attach it to toolbar control but when I'm programatically adding toolbar buttons
Toolbar.Buttons.Add(, "tbsave", "Save", MSComctlLib.ButtonStyleConstants.tbrDefault, toolbarImages.ListImages(1).Picture)
the VB .net experts. I added the following code and I get an error as shown below.
[CODE]....
i 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]....
I want to develop a tree view and list view form by using vb6, how to construct a tree view and list view form?
View 1 RepliesI have read many posts on this topic; among them and most recently .NET - Convert Generic Collection to Data Table. Unfortunately, all to no avail.
I have a generic collection of structures :
Private Structure MyStruct
Dim sState as String
Dim lValue as Long
Dim iLayer as Integer
End Structure
Dim LOStates As New List(Of MyStruct) I need to fill a DataTable with this list of structures but have no idea how to go about doing this. I am using vb.net in Visual Studio 2008.
how to view explorer in list view control?
View 1 Repliesis it possible to fill a list box from two SQL tables firstname lastname.
View 7 RepliesI am trying to move through a list "TodaysCard" and print the TimeOfDay.ToString into the first column of every row and to only create the amount of rows that are needed. But am a bit of a novice when it comes to this and can only get it to display the TimeOfDay.ToString value for the first item in the list over and over again. Just wondering how I can get it to iterate through each item properly.
For Each Race In TodaysCard
With (Race)
Try
[Code].....
My problem is that i am trying to use a list box to display all the data from one column in one table of my database. and so, i dont know how to do that although someone hinted at using an array, i'm just not entirely sure how also when the list of data is displayed i aim to have a 'select' button that will take the user to the record of the selected item from the box.
View 2 RepliesI have a WinForms applciation, I wrote a function that returns a list of all the controls on the form. The function returns a list of control objects.My target is to fill up a combo box with a list of the control names so that once clicked I set focus to it.So what is the correct code for converting a List(Of Control) to an array of string.
View 2 RepliesFill Combobox with List of Control names
View 5 Replieslist the steps to fill a combobox using a bindingsource. I dragged a bindingsource onto a form, created a datatable and datatableadapter(correct term?), added a query. I tried but I am missing something, my combobox displays System.Data.
View 5 RepliesI have a list of(myclass)each item of this list need to be elaborated before being inserted in the list.Is it safe to use parrallel processes to fill shared list where each process has to fill a predefine range of the list? Or is it necessary to freeze the list when one process is filling it? in other words: can many process fill the same list in the same time without problems
View 16 RepliesSo I'm making a program for a game, which can view screenshots you take in-game with the print screen key. I planing to add more functions later, but that's not important now.
So what I would like is a code that list all images in a folder of choice in a ImageList then I have a Next and Previous button to show diffrent pictures inside a PictureBox.
I have 2 linked DB tables, Artists and Albums using ArtistID as the primary/foreign key.When I want to add a new Album, I have a new form open and I can fill a combobox with the list of Artists to choose from and edit all the details then save to the database.
However, when I want to edit the Album info, I can't seem to get the Artist associated with the Album, as well as all the rest of the Artists from that table, (in case I need to change the Artist associated with the Album).The information required comes from 2 linked tables, so that's where I'm getting lost.An example of this is when a person edits their profile on a webpage, for instance, a list of countries is usually listed in a combobox and the one selected is the country they selected when filling out the form previously, however, they still have the option to change it.
Is it possible in vb.net to list view and possibly alter the contents of the ram on a computer, I presume this would have to be done through api because of the lack of access to the ram on xp +.
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