2008 : Listview With Image List - Change The Image In The Listview Dynamically?
Jan 15, 2010
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.
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May 17, 2009
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.
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Apr 7, 2010
I use this code to get an image and add it to a image list
Visual Basic
Private Sub LoadWebImageToPictureBoxd(ByVal ImageURL As String)
Dim objImage As MemoryStream
Dim objwebClient As WebClient
Dim sURL As String = Trim(ImageURL)
Dim bAns As Boolean
[Code] .....
The code at the bottom should set the image depending on what the items index is but it doesn't work.
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Jun 19, 2009
I need to know how to use listview, I'm having trouble using it.What are listviews uses?What can be listed in listview?What cannot be listview?If an image is in listview, will it display a thumbnail of the image?
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Jun 3, 2010
In my listview got 10 item that contain image with it
And i want change it when i select on item and click a button
I use sl(0).ImageKey = 1
infact it's change but it doesnt refresh , so i just c empty image on the item
So how to do refresh on it
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Dec 14, 2011
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]...
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May 4, 2009
After reading some tutorials i have kind of grasped loading images in vb.net, you need to load them into an image list then use the "key" of the image to display it, i have put together this
[Code]...
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Mar 10, 2008
In my project, I have a form with a background pic that I like, but unfortunately, I also have a ListView on that form which covers most of the picture. Now, is there a way to find the part of the background image concealed by the ListView, and then display it as a background image of the ListView at decreased opacity? You know, like a vague image.Just one more thing, setting the form's transparency key to the background color of the ListView is not an option.
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Aug 11, 2011
I'm trying to dynamically create a listview. on reports.aspx user selects a bunch of checkboxes. On the next page, user sees reports.aspx, and should see a table with columns of the checkboxes he selected. My idea was to create a listview, then dynamically change the header row of the LayoutTemplate, then change the select statement depending on which columns selected. This is what I have:
<asp:ListView runat="server" ID="ReportListView" DataSourceID="ReportListViewSDS">
<LayoutTemplate runat="server">
<table runat="server">
[Code]....
Problem is that this doesn't work because i can't put a code block (<%%>) inside the LayoutTemplate. Is there a way in the code behind to edit the LayoutTemplate, or another way to cycle through the Request.Form vars and build the table header row with it?
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May 25, 2009
How do I add an image to a ListView control in code from an imageArray?
I'm new to .Net, OPP and this forum but love it!
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Oct 27, 2010
I have a listview that is populated by file name from a folder on my hard drive. I want to add an image to the listview item, different image for each item. Here is my code:
For Each myItem As FileInfo In strFiles
ListView1.Items.Add(Path.GetFileNameWithoutExtension(myItem.ToString))
Next
[Code]...
When run the file name appear in the listview but the images don't.
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Jan 29, 2010
I don't have code yet I was looking for an example to start from. This dialog box I am entering my data into has exactly what I want. I just want to be able to call the image in from my code when I want.....
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May 29, 2012
actually i have a code in listview to select all data from my database, my problem is the picture,I want to be appear in my listview,[code]
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Dec 30, 2009
I use imagelist to display image in listviewHow can i assign image of item for a bitmap varible.
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Jan 20, 2012
I have a ListView control where rows have alternate colors with a small image appearing on some of them. And I wonder why the first column appears as if it were blank just as shown below?In fact, the selected row (right above the arrow) doesn't include the first column. How can I fix this 1st-column problem? I don't think you need to see it, but I use the following code to have alternate colors.
Dim myColor1 As Color = Color.FromArgb(210, 240, 250)
For i As Integer = 0 To ListView1.Items.Count - 1 Step 1
If i Mod 2 = 0 Then
[code]....
Onion is a recent refuge from Mac OS X and hates Mac App Store. System: Windows 7 x64
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May 13, 2009
is it possible to center an image in a listview column. Right now my image is stuck in the left.
Here's my code
Private Sub List_DrawSubItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawListViewSubItemEventArgs) Handles lst_ImpExp.DrawSubItem
If e.Header.Text <> "Item" Then
[Code]....
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Jun 20, 2010
I have got a listview and i added few items inside with a dustbin look-a-like image for remove item purpose. but now how do i make the user to click on the image n remove the item?i know how to remove the item with a button,but now would like to try using by image. anyone?
Here is the code i used for delete item with a button.
For Each lvItem As ListViewItem In ListView1.SelectedItems
lvItem.Remove()
[CODE]....................
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Aug 8, 2011
I want to pass my custom color as a parameter and I want to receive an Image (rectangle for example).
Public Function createIcon(ByVal c As Color) As Bitmap
Dim g As Graphics
Dim Brush As New SolidBrush(c)
[code]....
I tried this way and couldn't success.
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Jun 9, 2011
I don't know how to insert image into column header of listview
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Jun 23, 2011
i have a listview in my form and some items in it. so i want load image from listview to picturebox. to explain: listview have items in it with image like:
[Code]...
so if i double click on item1 i want to load that [image] to picturebox. btw picturebox is on form2. i think that you understand me. i use imagelist1 as largeImageList and imagelist2 as smalimagelist... here is the code that i try with:
[Code]...
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Feb 19, 2010
Ok im building a internal mail system for a company and i have it working to a extent but i want to beable to set the listview image from read and unread mail
i get the mail from a mysql DB and heres the code i use
vb
Try
Dim myAdapter As New MySqlDataAdapter
Dim sqlquery As String
[Code]....
but that wouldent work becuase i dont know how to set the image or how to set it only for the one coulum the first one the str(0) thats the from colum
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Dec 9, 2009
You can see. Listview1 which contain main menu of sales. And listview 2 which contains detail sale. If i click each item on Listview1 then correspond sale on Listview2 will show. I want to ask you. What best way for me to execute that. I mean what best way to store and load image to listview. I think i can use Imagelist or save Image to binary .
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Aug 2, 2010
I support a .Net 2.0 Windows application that has a custom listview control to allow for greater flexibility. I am not allowed to bring this to a newer version of the gramework until next year. We are moving from XP to Windows 7, and we have identified an issue with how the column sort image (up/down arrow) is drawn to the listview. Currently in XP, the image is drawn to the right of the column's text. However, in Windows 7, I am getting Access Violation Exceptions. Now, I know that the error is with the improper handling of memory using the unmanaged code as shown below. I am looking for a method to mimic what we have below in a safe manner using managed code.
[Code]...
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Feb 5, 2009
I want to know how to insert image into ListView Subitem. I know how to insert image into ListView first Subitem means. To insert an image into first item
dim lvitem as ListViewItem
set lvitem=ListView1.Items.add("Sonia",me.ImageList1.Images.count-1)
How to insert an image without text into subitem.
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Aug 22, 2009
I have a datagrid where the first column is for image button for expand purpose. The visibility of the image depends on some conditions row by row. I am trying to handle this in ItemDataBound event, and using e.item.cell(0).findcontrol("imageButton").visible = false. The first cell of this row therefore disappears even that the size is specified in the ItemStyle tag.
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Feb 12, 2010
I have a media browser program I am building. I am trying to use drag/drop so a user can drag media tracks from one listview to another listview and then use the second list view as a playlist in windows media player com object. Reading at MSDN I have found out that there is no built in support for item re-ordering with the listview control. I have listview1 working correctly but when I try to reorder items in listview2, the dragged item ends up at the end of the list. So basically I need to get the item insertion index corrected. I have tried more than 10 times to get this code right.
Here is my code which includes a form with two listview's.
Public Class Form1
Private Sub ListView_ItemDrag(ByVal sender As Object, ByVal e As _
System.Windows.Forms.ItemDragEventArgs) Handles ListView1.ItemDrag, _
ListView2.ItemDrag
[CODE]...
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Jan 25, 2011
I need to make an image button in the layout template of ListView, when I click on the button it should open the insert template so I can insert a new record.
Here is my ListView:
<asp:ListView ID="LVCategories" runat="server" DataKeyNames="CatID" DataSourceID="CategoriesDS" EnableModelValidation="True">
<AlternatingItemTemplate>
<tr style="">
[Code] .....
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Mar 20, 2012
I have 52 listview items in my listview1 and I have a picturebox basically I want it where I can click on a single item in the listview and display an image from a url in the picturebox. I basically have it right now that when you click on any item in the listview it just shows the same image in the picturebox no matter which item it is. I need to figure out how to do it separately for each item.
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Apr 15, 2010
I am making an operating system based game in visual basic. The real problem is that the game runs full screen and when it comes to desktop backgrounds I am having heaps of problems.First I had the desktop as just the forms background image but I needed to add icons to the desktop so I anchered a listveiw onto the background and the problem is that the listview is not transparent and you can't see the desktop background.
I thought that I could fix that problem by setting the background image on the listveiw as the background image but the problem is when i set a background image on the listveiw there is no option to stetch the image. The only option is to tile the background image.
How can I get the listveiw either transparent or set it a stretched background. ( the user gets to choose a desktop background so they all need to be able to stretch to the full desktop of the user's screen resolution.)
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Aug 23, 2011
I have a database and I'm storing images in it along with a person's name, and other attributes. I've databound my listview with a stored procedure. I want to know how I can display an icon on a row depending on if the record for that row has a picture or not for the person...I'm not sure how to accomplish this however with the templates in asp.net
EDIT:
Here is my template and the s where I'm hoping to put them.
<ItemTemplate>
[code].....
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