I have been trying to create a listview in detail mode which has 2 images (a light is on and one with the light off which represents a boolean value) I have gotten some code which populates the Listview during runtime but i have tried various ways to get the images into this without any success, google has been particularly useless and most examples seem to involve creating an array for each row(great if you have all the data in the first place, my project will perform like a log, it will show an Id, a Name and then 2 colums which should have on/off icons in them.
This is my sample code which works by creating a ListViewItem, adding the items for the row and then adding it. When i did this on my project however it showed nothing in the view (presume i need to refresh it after each add?)
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
I've attached a picture of the list view control that I am using. I've been fine until now, I want to save the entire line of items in the list view control (item_description, price) and dump it into the MySQL database to allow tracking of reciepts. The following code that I have saves the first column worth of information, but I cant figure out a way to save the second column (the price)
Dim li As ListViewItem For Each li In ListView1.Items CurItems = CurItems.ToString + li.Text + ", " Next
Oh right, and I'm making it comma seperated values so I can pull it up in a readable format again.
I have a listview set on 'Details' and its full of data. There's about 6-7 columns. I want to export certain rows if they are green and exclude the rest.
I have seen listview controls before that do not show any type of ID. (ie: Items in an order). So when I delete this row, how does it know which row to delete in my database? There could be many rows with the same exact data but each belonging to a different order. Would there be a hidden column with the record ID in it? If it is a hidden column, how would I go about this?
I've used this method for returning id's for ComboBox's and Listbox's:[URL]
I want to add files with its icon to a listview control. So I used the below code.But the files names are with its full path. I want to get only the file name without full path and extention. How to modify this code?
When I add an image to the imagelist, the con shows up. That's fine Let's say that I added 4 images (four items to the listview) then remove one item from the listview. From there, the next item I add will adopt the previous image added. How can I keep this from happening?
but the problem is that he don't print the icons.And this I never have to test until nowI can add anything like a color and other stuff but I do not know how to solved this.
Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage 'Headings
I am trying my hand at .Net 2010. I played around with vb6 for years but now it has come time to do .Net. So I am making a Explorer type app where I have a treeview on the left and a listview on the right. I have all that working fine I now want to add icons to the files listed in the listview. My app calls function in a class file and it populates the listviewHow do you add (dynamically) the icons from the files shown? Below is the function in the class file I have, not the form file.
Public Function ListFoldersFiles(ByVal path As String, ByVal lvTemp As ListView, Optional ByVal sExtFilter As String = "*.*") ' Create a reference to the current directory.
I use a simple master-detail form using Visual basic 2005 express edition and ms sql server 2005 express edition, as well.
The master table is dept (deptno int, dname nvarchar(50)) .
The deail table is emp (empno int, deptno int, ename nvarchar(50)).
The primary key for the dept table is deptno and for the emp table is empno.
There is also a foreign key (deptno on emp table).
I created a new project, connected to a db (called test.mdf) and created a data source consisting the two of the above reffered tables.
I dragged and dropped these tables on the form and i noticed the following:
1)When the form opens... the system queries the database and displays the data on each block on the form.
2)I insert and/or update a record on the master table (dept) and everything goes well...
3)I try to insert and/or update a record on the detail table (emp) and nothing is changed on the detail table - without any error.
4)When i try to insert and/or update a record on the detail table (emp) which violates the primary key constraint or foreign key the system complaints...(as expected).
I have made several posts on here lately regarding master/detail or parent/child data setups but no one has been able to help. It seems like a subject people don't like to tackle BUT I really need help.
I'm having a real hard with the DataView.RowFilter functionality and it is driving me insane.
For the most part, I have the basic master/detail functionality working. When you select a record in the first grid, it shows the correct data in the second grid. When you enter a record in the first grid, you can enter related data in the second grid. I accomplish this by using a dataview and row filter bound to the 2nd grid. When you change the record in the first grid, the rowfilter for the 2nd grid is restated and reapplied.
The problem arises when I overwrite the primary field value in the first grid and the detail records become orphaned. You would think all I have to do is change the ID in the 2nd grid to match the new ID in the 1st grid but this is where I am having problems. I wrote a loop to change the ID of each record currently loaded in the 2nd grid to match the newly changed ID in the first grid. The code is here:
Code: Dim I As Integer
For I = AuthorizationGroupsDGV.Rows.Count - 2 To 0 Step -1 AuthorizationGroupsDGV.Rows(I).Cells(0).Value = StrEmployeeID Next
I have used this code before and it works great. It has to step backwards through the grid because when the ID's are changed, they no longer match the RowFilter criteria and they disappear from the grid. They still exist in the dataset. The problem is, while the code "works" the intended effect does not. Some of the records completely disappear from the dataset and do not reload when I restate the row filter against the new ID number.
I've got a list view that opens items inside a folder and displays them. I want to know if there is a way to have the list view display the icons as well, maybe using shell32 or an imagelist. Here's the code:
Imports System.IO Imports System.Xml Imports System.Runtime.InteropServices Imports Microsoft.VisualBasic Public Class cv7import [Code] .....
Here's two images, of how it looks and how I want it to look. How I wanted: [URL] How it looks: [URL]
I know that i have to drag and drop the ListView control from the Control Box into my form Then goto Properties and choose view: LargeIcons/SmallIcons.
I'm a VB beginner. The following image comes from a Mac application that I've developed. This window lists all visible files and their icons for a particular folder.
Dim subfileEntries() As String = Directory.GetFiles(FolderPath) For Each f As String In subfileEntries If (File.GetAttributes(f) And FileAttributes.Hidden) <> FileAttributes.Hidden And (File.GetAttributes(f) And FileAttributes.System) <> FileAttributes.System Then
[Code]....
The issue I'm running into is that 1 folder I have has 812 files in it and it takes a good 20 seconds or more to load the files with their Extracted icons. Furthermore, I ran into one instance where a .pdf file was given a system icon (sort of like the icon a .bat file would receive with the two gears) instead of the Adobe PDF icon.
So, my questions are: 1) Is there a better way to load files so that it will be able to get the icons and display them in the Listview faster?
2) Is there a better way of getting associated icons since the VS built in option seems fallible.
There are a lot of master/detail databinding examples with detail form on the same window than the master, I can't find any example where detail is in a new window.
I am trying to add icons to a listview that would contain a list of programs added by the user. I am pulling my hair out over this. I had the solution a few days ago and then I decided to go in another direction and then cleared my browser history. I have searched for that code for awhile now to no avail. First person gets a cookie.
I want display many items in a Listview.Each Item gets a own icon.Item 1 to 32768 = Icon is visible in ListviewItem32769to 65536 = Icon is not visible in ListviewItem65537to ... = Icon is visible in ListviewI think it swaps in 32768 steps.Here is my code:
Dim tmpIcon As Icon = GetIcon("...") ImageList1.Images.Add(tmpIcon) tmpIcon.Dispose()
I have created a project that uses a listview associated to an imagelist (LargeImagelist, I have set the size as 100 x 75 and 32 bit depth), that displays information from a database along with an image from the image list. My listview is set to tilemode so that I can control the size of the tiles to get two columns of six. The image list is populated when the form is loaded from all the images in a specific folder, this part is working appropriately as I can get a picturebox working consistently that references an image from the imagelist.
I need to obtain a list of desktop icons and add them to a ListView. I'm currently doing this:
[code]...
It points to the direct path the icons should be located under the user profile. However, for some reason I've yet to determine, not all of the icons are in this directory.
I have a program where I'm trying to clone icons in a folder and represent the files in a listview on a form. I've tried using msdn, google and F1 help to figure this out, but I don't seem to be getting it.Here's the code I have so far, but I'm getting error that object not set to an instance of the object.
I have a list view control and for each item I set to display an icon it will change the icons for the other items that already have icons, to the most recently added icon.
Here is my code.
vb.net Dim ext As String = Strings.Right(e.Item.Text, 4) Dim fileandparam As String = IconsInfo(ext).ToString
I am trying to owner drawing a list view in Tile View Mode. I am creating Items and add them in the ListView_DrawItem Event, but ListView_DrawSubItem is not firing.
I have been searching internet regarding this issue but I could not found anything relevant, the only thing I found was to call the DrawSubItem method.
i need to use virtual mode in a listview to load data from a table...what to add in the retrievevirtualitem event... i have a data bindingsource which is attached to the table..
I've have a problem, this sub works just fine adding items into a listview.. Some reason they forecolor of items / subitems wont change in view.details mode, it seems to work in other views but not details, and details is what i need as you can see I'm even using Item.UseItemStyleForSubItems = False
I have a dataset containing 2 tables,Customers and Contacts. Just showing the master-detail is not a problem. Problem occurs when I try to search the master table to bring in the detail table. Searching the master table shows only the master record, but not the related detail records. Adding a 'findby' query on the detail table only shows the records.url.. Normally when the master table is filled, the detail record shows in a form.
TortoiseSVN and Dropbox both have Windows shell extensions that make file icons within Windows Explorer show a small icon beside the main one, showing the file's status - has it been synced, etc How can I make my application show icons beside files like that using the Windows API? Or is there some file attribute to do that?
I'm wondering if there is any code that I could use in VB.net so it can determine the computer's startup mode (such as safe mode or safe mode with networking).
