Get File Type Images For Listview Control?
May 21, 2009I want to make a simple file re-naming utility and do not know how to get the images for the known file types.
View 1 RepliesI want to make a simple file re-naming utility and do not know how to get the images for the known file types.
View 1 RepliesI have been able to associate a listview control with an imageview control to display images. There are a couple of things, I would like to do.
1> How do I display the image in the second column? 2> How do I increase the size of the image getting displayed? My images are all 48 x 48 (pixels), but they keep shrinking.
VB.NET
Option Explicit On
Imports System.IO
[code].....
With .Net 3.5 / VB 2008 / WinXP...I'm using a Listview control in Details view. Two columns with an image on the left and text on the right. FullRowSelect is set to true. All works fine except that in the selected item the image is not visible. It's replaced by a white background. I need the image to be visible within the selected ListViewItem's blue background. Do I need to switch to OwnerDraw or is there another way to keep the image visible?
View 4 RepliesHowever, urldownloadfile will use proxy that internet explorer use. That part is what I want. The thing is the proxy used authentication. The proxy in internet explorer is authenticated. Using urldownloadfile will faile with error. It works without proxy.Anotehr is to copy the image to clipboard. That method is not reliable when user switch to another.
View 2 RepliesI am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
View 2 RepliesI would like to restrict what they see in the file upload dialog, which is set to "All Files" by default. I understand how to validate that they only uploaded a certain file type, that is not the question here. I would just like to know how to default the file type in the file selection dialog.
Is there any way to change this to "PNG only" or "*.png"?
This is using AsyncFileUpload in the ASP.NET AJAX Control Toolkit.
how can i download file With a listview control?
[Code]...
I've got 1 form that has the user enter 7 fields of data.When they click my "Save" button those values are stored in a .DAT file.On that first form there is a button that brings up a second form with a listview control.I have all the headers set up but can't figure out how to populate the listview control with the contents of the .DAT file.A friend of mine told me I may need a Do while loop but this is my first time doing this and I am so lost. I don't even know where that loop would go and whether or not I need extra variable for it.
View 6 RepliesMy program accesses a website and needs to upload a file through an html form file upload input.Through the webBrowser I have activated the form and it loads a windows file picker dialog box. How can I control the text that goes into that box, then press enter.
View 1 RepliesHow do i add images to the first column of a listview in vb.net 2008..?
View 2 RepliesI've created a ListView called ListView1. In the first colum, I want to add either a stop sign or a grean light.
I create the columns
HTML
ListView1.Columns.Add("Item Column", -2, HorizontalAlignment.Left)
ListView1.Columns.Add("Column 2", -2, HorizontalAlignment.Left)
[code]....
This seems to generate alternating stop signs and green lights in the first column. Instead, I want to be able to decide which one goes on each row on the fly, as well as change them later.
I have a couple of images in a imagelist1. I'd like to display images in listview1 control. Once the image is selected it should display in a picturebox1. I should be able to navigate through (next/previous) pictures and I should also be able to delete pictures.
ImageList1.Images.Add(Image.FromFile(OpenFileDialog1.FileName)) not adding files!
I want to add images to listview and the code below should work in theory but it is not working. What should happen is when I select an Image from the openfiledialog it should then show in the listview box with the image plus it's filename underneath it. What happens is when I put 'Openfiledialog.showdialog' in the open button code underneath all the rest of the code and run my program.... it opens twice and only shows the file path but no image with it in the listview box. When I take that line out and press open..... it crashes and highlights any line with '(strFilename)' and says the error "not in legal form".
Here is the code for adding pictures to listview which is placed in the 'form_load' function
Dim Load_ID As Integer = img1.Images.Count
Dim i As Integer
For i = 0 To Load_ID - 1
'Add columns
ListView1.Columns.Add("I_Name", 100, HorizontalAlignment.Center)
[Code] .....
I am working on the listview that I have got two columns, the one that it goes for the images and the other one goes for the text data. I can extact the text data, but not for the images.
View 3 RepliesI am using a image-list to show images in a list-view. So far I am able to display all the images in the image-list but spacing between each image is very big. So I used the Send Message method which gave rise to another problem. Now when I click or move my mouse over(hot tracking enabled) any image the image becomes invisible. How can I solve this problem ?
[code]...
After Mouse-Move:Also I have this big left margin although listview margin is set to All = 3 The First column of Images is not being displayed !!!
is it possible to have several images in a single Listview subitem?
View 1 RepliesI have 3 forms, one frmMain - main form, second is frmUserType- childform, and the last frmCreateUserType. In the main form I have a menu item to open my frmUserType, In this form I have a button to open another form which is my frmCreateUserType, In this form I have a button to add records then update the listview in frmUserType. The problem is the listview will not access with my add button control in frmCreateUserType. I tried not to used mdiparent declaration for my frmMain and frmUserType as children and it works, so meaning that the problem is showing my frmUserType as childform?I am using vb.net 2008
Code to open my second form (frmUserType)
[CODE]...........
Code for my add button to update the listview in frmUserType
[CODE]...........
I'm using ListView control, with SmallIcons style in VB.NET. Icons are loaded fine, but when I start to scroll ListView down or up from scrollbar (clicking from arrows), rowheight drops to about half from normal in next 20-30 rows below/above upper/bottom row (depends from the scrolling position). After 1-2 seconds, ListView is "refreshed" and scrolling continues normally. When focus in on the ListView and I'm moving up/down with arrow keys or PageUp/PageDown, everything is normal. Any suggestions, what is happening? SmallIcons size is 16 * 16. Is it compulsory to set "Blank icon" with SmallIcon size to all rows, when adding them or what? Wasn't like that in VB6, how is it in VB.NET?
View 4 RepliesI have a vb-2008 program that contains a (listview) control.
View = details
AllowColumnReorder = true
Lets say the table has 3 columns (a,b,c) and 1 row of data.
a b c
1 2 3
I want the user to be able to re-arrange the columns (by dragging the column headers) before printing the contents of the table.
c a b
3 1 2
Statements like:
.. ListViewX.Columns(2).Text
.. ListViewX.Columns.Item(2).Text
.. ListViewX.Items(0).SubItems(2).ToString
Give the column-name (c) and cell-contents (3) of the origional table .. not the (3rd) column (b) of the re-arranged table.
How can i get the column-name and cell-contents of the (3rd) column of the re-arranged table?
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 am using some code that searches a variable path (usually the entire drive) for images, it then displays the entire path in a listbox. I am able to use a picture box in conjunction to view the pics one at a time. How to display them all in a listview as thumbnails so i can browse them all instead of one at a time using the picturebox. The code I am using returns a array of files if it makes a difference....
View 12 RepliesI need to add multiple images to a list view item dynamically. For example, if an alarm exceeds limit one image has to be displayed and is fine with me.But when the user clicks alarm inhibit checkbox,then two images has to be displayed,one for alarm existance and second for manual operation which represents the user action.Both the images have to be displayed under one column only..
View 3 RepliesIm trying to fill a listview(tiles) with posters and titles of a DVD collection but only the titles become vissible.
this is my code:
Private Sub fillListView(ByVal listView As System.Windows.Forms.ListView, ByVal col As Collection)
listView.Items.Clear()
myImageList = New ImageList()
For Each item As bsDVD In col
[code]....
Im trying to fill a listview(tiles) with posters and titles of a DVD collection but only the titles become vissible. this is my code:
[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]...
Imports System.IO
Public Class Form3
Const IMAGE_DIRECTORY As String = "C:images"
Dim files As String() = Directory.GetFiles(IMAGE_DIRECTORY)
Dim max_length, i As Integer
Dim s, fname As String
[Code]...
I simply want to have a list of all graphics saved in specified folder displayed as miniatures - this suppose to be a sort of an image browser - it does not have to be done using ListView, so I'm open to any suggestions.
file that requires images as part of technical explanations, so I have a form that opens that contains only a webbrowser control. I have designed my html document that views correctly in IE9 (images and all) and imported that as a resource. I then set that resource as the DocumentText of the webbrowser control. However, when the form opens the text is fine but no images - just placeholders! I am not trying to do anything fancy - the webbrowser control doesn't navigate away from the displayed doc at all and being distributed i don't really want to have to distribute the images seperately (hence using resource)
View 6 RepliesI'm doing a project using VB 2005 Images of the application simulates using an accelermoet. However, right now, i need to create 4 buttons to simulate the diagonal position of the image.Right now, the accelerometer can move the image in 4 directions (mainly left, right , Up, Down).The 4 buttons mention, is in diagonal position( 45 degree Leftup, 45 degree Leftdown, 45 degreeRightu, 45 degree RightUp, 45 degree RightDown).I need to do it the way in which when my image is moved using the accelerometer, and once when i hit any of the 4 buttons, the image move accordingly. And when i use the accelerometer again to simulate, it also move.[code]
View 2 Repliesin vb.net 2003 , how to disable images loading in webbrowser control
View 1 RepliesI am Developing a POS System in with VB.Net .On that i m using Web browser control to display the item images, because it can support both the flash and images I am am using Webbrowser.DocumentText to push the document source of the browser control But if i change the code with another image the browser is not refreshing.the following are the code snippets I am using a method for changing the document text ' Method to add html source to the web browser
Public Function set_image(ByVal img As String) As Boolean
Dim src As String = "<html><head></head><body style='padding:2px;margin:0'>"
src &= img
[code]....
then i m calling the method as follows
set_image("<img src='C:one.jpg' width='246' height='246' style='margin:0;padding:0' />")
but if i use set_image again for blank the browser it will work
set_image("")
after that if i call the set_image again its not getting updated